fix: make spatial parenting more stable

Signed-off-by: Schmarni <marnistromer@gmail.com>

.github/workflows/build.yml

@@ -3,7 +3,7 @@ name: Build
 on:
   push:
     branches:
-      - '*'
+      - "*"
 
 jobs:
   build_and_package:
@@ -11,13 +11,13 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Install runtime dependencies
         run: sudo apt install -y --no-install-recommends libxkbcommon-dev libstdc++6 libopenxr-dev libx11-dev libxfixes-dev libgl1-mesa-dev libegl1-mesa-dev libgbm-dev libfontconfig-dev libjsoncpp-dev  libxcb1-dev libglx-dev libxcb-glx0-dev libdrm-dev libwayland-dev libfreetype-dev libpng-dev
 
       - name: Install build dependencies
-        run: sudo apt install -y --no-install-recommends cmake ninja-build
+        run: sudo apt install -y --no-install-recommends cmake ninja-build libfuse2
 
       - name: Set up Rust
         uses: actions-rs/toolchain@v1
@@ -26,21 +26,3 @@ jobs:
 
       - name: Build server
         run: cargo build --release
-
-
-      - name: Install appimagetool
-        run: |
-            wget https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-$(uname -m).AppImage -O /usr/local/bin/appimagetool; \
-            chmod +x /usr/local/bin/appimagetool; \
-            sed -i 's|AI\x02|\x00\x00\x00|' /usr/local/bin/appimagetool
-      - name: Install cargo-appimage
-        run: cargo install cargo-appimage
-
-      - name: Generate AppImage
-        run: cargo appimage
-
-      - name: Upload AppImage
-        uses: actions/upload-artifact@v2
-        with:
-          name: appimage
-          path: '*.AppImage'

.gitignore

@@ -12,4 +12,5 @@
 
 /libs/
 *.AppImage
-*.blend1
+*.blend1
+anchors.txt

.lapce/run.toml

@@ -0,0 +1,29 @@
+# The run config is used for both run mode and debug mode
+
+[[configs]]
+# the name of this task
+name = "task"
+
+# the type of the debugger. If not set, it can't be debugged but can still be run
+# type = "lldb"
+
+# the program to run
+program = "./target/debug/stardust-xr-server"
+
+# the program arguments, e.g. args = ["arg1", "arg2"], optional
+# args = []
+
+# current working directory, optional
+cwd = "${workspace}"
+
+# enviroment variables, optional
+# [configs.env]
+# VAR1 = "VAL1"
+# VAR2 = "VAL2"
+
+# task to run before the run/debug session is started, optional
+# [configs.prelaunch]
+# program = "cargo"
+# args = [
+#   "build",
+# ]

Cargo.toml

@@ -1,102 +1,114 @@
 [package]
-edition = "2021"
+edition = "2024"
+rust-version = "1.85"
 name = "stardust-xr-server"
-version = "0.43.0"
+version = "0.45.0"
 authors = ["Nova King <technobaboo@proton.me>"]
 description = "Stardust XR reference display server"
 license = "GPLv2"
 repository = "https://github.com/StardustXR/stardust-xr-server/"
 homepage = "https://stardustxr.org"
 
+[workspace]
+members = ["codegen"]
+
+[workspace.dependencies.stardust-xr]
+git = "https://github.com/StardustXR/core.git"
+branch = "dev"
+
 [[bin]]
 name = "stardust-xr-server"
 path = "src/main.rs"
 
 [features]
 default = ["wayland"]
-wayland = ["dep:smithay", "dep:xkbcommon"]
-xwayland = ["smithay/xwayland"]
+wayland = ["dep:smithay", "dep:wayland-scanner", "dep:wayland-backend"]
 profile_tokio = ["dep:console-subscriber", "tokio/tracing"]
 profile_app = ["dep:tracing-tracy"]
+local_deps = ["stereokit-rust/force-local-deps"]
 
 [package.metadata.appimage]
 auto_link = true
 auto_link_exclude_list = [
-    "libc*",
-    "libdl*",
-    "libpthread*",
-    "ld-linux*",
-    "libGL*",
-    "libEGL*",
+	"libc*",
+	"libdl*",
+	"libpthread*",
+	"ld-linux*",
+	"libGL*",
+	"libEGL*",
 ]
 
 [profile.dev.package."*"]
 opt-level = 3
+debug = true
+strip = false
+debug-assertions = true
+overflow-checks = true
+
 [profile.release]
+opt-level = 3
+debug = "line-tables-only"
 strip = true
-lto = true
+debug-assertions = true
+overflow-checks = false
+lto = "thin"
 
 [dependencies]
-color-eyre = { version = "0.6.2", default-features = false }
-clap = { version = "4.2.4", features = ["derive"] }
-glam = { version = "0.23.0", features = ["mint"] }
-lazy_static = "1.4.0"
-mint = "0.5.9"
+# small utility thingys
 nanoid = "0.4.0"
-once_cell = "1.17.1"
-parking_lot = "0.12.1"
-portable-atomic = { version = "1.2.0", features = ["float", "std"] }
-rustc-hash = "1.1.0"
-tokio = { version = "1.27.0", features = ["rt-multi-thread", "signal", "time"] }
-send_wrapper = "0.6.0"
-prisma = "0.1.1"
-directories = "5.0.0"
-serde = { version = "1.0.160", features = ["derive"] }
-serde_repr = "0.1.16"
-tracing = "0.1.37"
-tracing-subscriber = { version = "0.3.17", features = ["env-filter"] }
-global_counter = "0.2.2"
+lazy_static = "1.5.0"
 rand = "0.8.5"
-atty = "0.2.14"
-xkbcommon = { version = "0.6.0", default-features = false, optional = true }
-ctrlc = "3.4.1"
-libc = "0.2.148"
-input-event-codes = "5.16.8"
-drm-fourcc = { version = "2.2.0", features = ["serde"] }
+rustc-hash = "2.0.0"
+send_wrapper = "0.6.0"
+slotmap = "1.0.7"
+global_counter = "=0.2.2"
+parking_lot = "0.12.3"
+
+# rust errors/logging
+color-eyre = { version = "0.6.3", default-features = false }
+clap = { version = "4.5.13", features = ["derive"] }
+console-subscriber = { version = "0.4.0", optional = true }
+thiserror = "2.0.9"
+tracing = "0.1.40"
+tracing-subscriber = { version = "0.3.18", features = ["env-filter"] }
+tracing-tracy = { version = "0.11.1", optional = true }
+
+# (de)serialization
+serde = { version = "1.0.205", features = ["derive"] }
+serde_repr = "0.1.19"
+toml = "0.8.19"
+
+# mathy stuffs
+glam = { version = "0.29.0", features = ["mint", "serde"] }
+mint = "0.5.9"
+tokio = { version = "1.39.2", features = ["rt-multi-thread", "signal", "time"] }
+
+# linux stuffs
+input-event-codes = "6.2.0"
+zbus = { version = "5.0.0", default-features = false, features = ["tokio"] }
+directories = "5.0.1"
+xkbcommon-rs = "0.1.0"
+
+# wayland
+wayland-backend = { version = "0.3.7", optional = true, default-features = false }
+wayland-scanner = { version = "0.31.4", optional = true }
+dashmap = "6.1.0"
 
 [dependencies.smithay]
-# git = "https://github.com/technobaboo/smithay.git" # Until we get stereokit to understand OES samplers and external textures
-git = "https://github.com/smithay/smithay.git" # Until we get stereokit to understand OES samplers and external textures
-# path = "../smithay"
+git = "https://github.com/smithay/smithay.git"
 default-features = false
-features = [
-    "desktop",
-    "backend_drm",
-    "backend_egl",
-    "renderer_gl",
-    "wayland_frontend",
-]
-version = "*"
+features = ["desktop", "backend_drm", "renderer_gl", "wayland_frontend"]
 optional = true
 
-[dependencies.stereokit]
+
+[dependencies.stereokit-rust]
+git = "https://github.com/mvvvv/StereoKit-rust.git"
+rev = "73ffaae6f42aa369e599a6ea0391f77840d682d8"
+features = ["no-event-loop"]
 default-features = false
-features = ["linux-egl"]
-version = "0.16.9"
-
-[dependencies.console-subscriber]
-version = "0.1.8"
-optional = true
-
-[dependencies.tracing-tracy]
-version = "0.10.4"
-optional = true
 
 [dependencies.stardust-xr]
-git = "https://github.com/StardustXR/core.git"
-branch = "camera-item"
+workspace = true
 
-# [patch.crates-io.stereokit]
-# path = "../stereokit-rs"
-# [patch.crates-io.stereokit-sys]
-# path = "../stereokit-sys"
+[dependencies.stardust-xr-server-codegen]
+path = "codegen"

README.md

@@ -1,85 +1,113 @@
-# Stardust XR Reference Server
+# Stardust XR Server
 
-This project is a usable Linux display server that reinvents human-computer interaction for all kinds of XR, from putting 2D/XR apps into various 3D shells for varying uses to SDF-based interaction.
+Stardust XR is a display server for VR and AR headsets on Linux-based systems. [Stardust provides a 3D environment](https://www.youtube.com/watch?v=v2WblwbaLaA), where anything from 2D windows (including your existing apps!), to 3D apps built from objects, can exist together in physical space.
 
-## Prerequisites
-1. Cargo
-2. CMake
-3. EGL+GLES 3.2
-4. GLX+Xlib
-5. fontconfig
-6. dlopen
-7. OpenXR Loader (required even if run in flatscreen mode)
+![workflow](/img/workflow.png)
+
+Command line installation of core & dynamic dependencies are provided below:
+<details>
+<summary>Ubuntu/Debian</summary>
+  <pre><code class="language-bash">
+  sudo apt update && sudo apt install \
+  build-essential \
+  cargo \
+  cmake \
+  libxkbcommon-dev libudev1 libinput10 libcap2 libmtdev1 libevdev2 libwacom9 libgudev-1.0-0 \
+  libglib2.0-dev libffi8 libpcre2-dev libxkbcommon-x11-dev libxcb-dev libxcb-xkb-dev libxau-dev \ 
+  libstdc++-dev libx11-dev libxfixes-dev libegl-dev libgbm-dev libfontconfig1-dev libgl-dev \
+  libdrm-dev libexpat1-dev libfreetype6-dev libxml2-dev zlib1g-dev libbz2-dev libpng-dev \ 
+  libharfbuzz-dev libbrotli-dev liblzma-dev libraphite2-dev
+  </code></pre>
+</details>
+
+<details>
+<summary>Fedora</summary>
+  <pre><code class="language-bash">
+  sudo apt update && sudo apt install \
+  cargo \
+  cmake \
+  libxkbcommon-devel systemd-devel libinput-devel libcap-devel mtdev-devel libevdev-devel glib2-devel \
+  libffi-devel pcre2-devel libxkbcommon-x11-devel libxcb-devel libXau-devel libstdc++-devel libx11-devel libxfixes-devel \
+  mesa-libEGL-devel mesa-libgbm-devel fontconfig-devel libdrm-devel expat-devel freetype-devel libxml2-devel zlib-devel \
+  bzip2-devel libpng-devel harfbuzz-devel brotli-devel xz-devel graphite2-devel
+  </code></pre>
+</details>
+
+
+<details>
+<summary>Arch Linux</summary>
+  <pre><code class="language-bash">
+  sudo pacman -Syu --needed \
+  cargo \
+  cmake \
+  libxkbcommon systemd libinput libcap mtdev libevdev libwacom glib2 libffi pcre2 libxkbcommon-x11 \
+  libxcb libxau libx11 libxfixes mesa fontconfig libdrm expat freetype2 libxml2 zlib bzip2 \ 
+  libpng harfbuzz brotli xz graphite
+  </code></pre>
+</details>
+
+## Installation
+
+More detailed instructions and walkthroughs are provided at https://www.stardustxr.org
+
+The [Terra Repository](https://terra.fyralabs.com/) is required, and comes pre-installed with [Ultramarine Linux](https://ultramarine-linux.org/). Other Fedora Editions and derivatives can directly install terra-release:
 
-## Build
 ```bash
-cargo build
+sudo dnf install --nogpgcheck --repofrompath 'terra,https://repos.fyralabs.com/terra$releasever' terra-release
+```
+
+For a full installation of the Stardust XR server *and* a selected group of clients, run:
+
+```bash
+sudo dnf group install stardust-xr
+```
+
+## Manual Build
+We've provided a manual installation script [here](https://github.com/cyberneticmelon/usefulscripts/blob/main/stardustxr_setup.sh) that clones and builds the Stardust XR server along with a number of other clients from their respective repositories, and provides a startup script for automatically launching some clients.
+
+After cloning the repository
+```bash
+cargo build --release # this is needed to skip validation layers
 ```
-The latest stable server is automatically built to an appimage at https://github.com/StardustXR/server/releases for easy testing.
 
 ## Usage
+> [!NOTE]
+> For help with setting up an XR headset on linux, visit https://stardustxr.org/docs/get-started/setup-openxr
 
-First, try running `cargo run` in a terminal window. If a headset is plugged in and OpenXR is working no window will show up. However, the headset should show the same things as the window that opens:
 
-![A pitch black void with a single bleach white hand in the middle](/img/xr_mode_windowed_blank.png)
+The **Stardust XR Server** is a server that runs clients, so without any running, you will see a black screen. If you only have the server installed, we recommend also cloning and building the following clients to start: [Flatland](https://github.com/StardustXR/flatland), which allows normal 2D apps to run in Stardust, [Protostar](https://github.com/StardustXR/protostar), which contains Hexagon Launcher, an app launcher menu, and [Black Hole](https://github.com/StardustXR/black-hole) to quickly tuck away your objects and apps (kind of like desktop peek on Windows).
 
-Stardust won't do anything interesting without clients! Try some from https://github.com/StardustXR.
+First, try running `cargo run -- -f` in a terminal window to check out flatscreen mode, (or `stardust-xr-server -f` / `stardust-xr-server_dev -f` if you installed via dnf or the manual installation script, respectively, as they provide symlinks.)
 
-### Default Sky
+If there aren't already any clients running, you'll need to manually launch them by either navigating to their repositories and running `cargo run`, or running them via their names if you installed via dnf or the manual installation script, such as `flatland`, `hexagon_launcher`, etc.
 
-You can set a default skytex/skylight by putting your favorite HDRI equirectangular sky in `~/.config/stardust/skytex.hdr`. Certain clients can override this.
+> [!IMPORTANT]
+> [Flatland](https://github.com/StardustXR/flatland) must be running for 2D apps to launch.
 
-Flatscreen mode when the default skybox is [Zhengyang Gate](https://polyhaven.com/a/zhengyang_gate):
-![A pitch black window representing Stardust in flatscreen mode](/img/flatscreen_3.png)
+### Startup Script
+A startup script can be created at `~/.config/stardust/startup` that will launch specified settings and clients/applications, an example of which is shown [here](https://github.com/cyberneticmelon/usefulscripts/blob/main/startup). If you used the [installation script](https://github.com/cyberneticmelon/usefulscripts/blob/main/stardustxr_setup.sh), one will have already been made for you. This allows wide flexibility of what clients to launch upon startup (and, for example, *where*, using the [Gravity](https://github.com/StardustXR/gravity) client to specify X Y and Z co-ordinates).
 
-### Windowed Mode
+### Flatscreen Navigation
+A video guide showcasing flatscreen controls is available [here](https://www.youtube.com/watch?v=JCYecSlKlDI)
 
-If the stardust server can't connect to an OpenXR runtime or you force it into flatscreen mode with `-f`, the server will show in a window.
-![A black void representing Stardust in XR mode with a hand skeleton in the middle](/img/flatscreen_2.png)
+To move around, hold down `Shift + W A S D`, with `Q` for moving down and `E` for moving up.
+![wasd](https://github.com/StardustXR/website/blob/main/static/img/updated_flat_wasd.GIF)
 
-You can navigate around by right click + dragging to look around, Shift+W/A/S/D/Q/E to move. If you have a virtual hand, left click pinches, right click points, both make a fist.
+To look around, hold down `Shift + Right` Click while moving the mouse.
+![updated_look](https://github.com/StardustXR/website/blob/main/static/img/updated_flat_look.GIF)
 
-### Flags
-#### Flatscreen (-f)
+To drag applications out of the app launcher, hold down `Shift + ~`
+![updated_drag](https://github.com/StardustXR/website/blob/main/static/img/updated_flat_drag.GIF)
 
-The server will show up in windowed mode no matter what with your mouse pointer being turned into a 3D pointer. Keyboard input will be sent to whatever your mouse is hovering over like visionOS simulator.
-Flatscreen mode upon initial startup:
-![A pitch black window representing Stardust in flatscreen mode](/img/flatscreen_1.png)
+### XR Navigation
+A video guide showcasing XR controls is available [here](https://www.youtube.com/watch?v=RbxFq6JjliA)
 
-#### Overlay (-o \<PRIORITY>)
+**Quest 3 Hand tracking**:
+Pinch to drag and drop, grasp with full hand for grabbing, point and click with pointer finger to click or pinch from a distance
 
-The server will, if in XR mode, be overlaid using the OpenXR overlay extension with the given priority.
+![hand_pinching](https://github.com/StardustXR/website/blob/main/static/img/hand_pinching.GIF)
 
-#### Disable controller (--disable-controller)
+**Quest 3 Controller**:
+Grab with the grip buttons, click by touching the tip of the cones or by using the trigger from a distance
 
-Some runtimes such as Monado may emulate a controller using a hand, and this messes with Stardust's input system. Set this flag to ignore the controllers that the OpenXR runtime provides.
-
-#### Execute (-e </path/to/executable>)
-
-When wayland and OpenXR and such are initialized, run the given executable (such as a bash script) with all the environment variables needed to connect all clients of any type to the server. If not set, the server will run the executable at `~/.config/stardust/startup` if it exists. This is how stardust desktop environments can be made.
-
-#### Help (-h, --help)
-
-help
-
-## Test
-
-##### Gnome Graphical Integration Test
-
-- `nix build .#gnome-graphical-test`
-
-   This test uses Nix to reproducibly execute a QEMU virtual machine which
-   spawns a full Gnome desktop. It runs `monado-service`, `stardust-xr-server`
-   `flatland` underneath of Gnome and then attaches `weston-cliptest` to the
-   `flatland` process running underneath of `stardust-xr-server`, the result is
-   a screenshot in PNG format that should look like expected. If any process in
-   this test produces an exit code above 0, the test will fail, graphical bugs
-   should be visible in the screenshot. An example of the result is below.
-
-   ###### Result
-
-   ![image](https://github.com/StardustXR/server/assets/26458780/e21cd039-2528-4568-b20a-ce4abfab6d9b)
-
-##### Everything
-
-`nix flake check` will build every test underneath of the `checks` attribute in the `flake.nix`
+![controller_click](https://github.com/StardustXR/website/blob/main/static/img/controller_click.GIF)

codegen/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+edition = "2021"
+name = "stardust-xr-server-codegen"
+version = "0.1.0"
+
+[lib]
+proc-macro = true
+
+[dependencies]
+convert_case = "0.6.0"
+quote = "1.0.33"
+mint = "0.5.9"
+proc-macro2 = "1.0.71"
+split-iter = "0.1.0"
+
+stardust-xr = { workspace = true }

codegen/src/lib.rs

@@ -0,0 +1,724 @@
+use convert_case::{Case, Casing};
+use proc_macro2::{Ident, Span, TokenStream};
+use quote::{quote, ToTokens};
+use split_iter::Splittable;
+use stardust_xr::schemas::protocol::*;
+
+fn fold_tokens(a: TokenStream, b: TokenStream) -> TokenStream {
+	quote!(#a #b)
+}
+
+#[proc_macro]
+pub fn codegen_root_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(ROOT_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_node_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(NODE_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_spatial_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(SPATIAL_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_field_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(FIELD_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_audio_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(AUDIO_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_drawable_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(DRAWABLE_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_input_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(INPUT_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_item_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(ITEM_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_item_camera_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(ITEM_CAMERA_PROTOCOL)
+}
+#[proc_macro]
+pub fn codegen_item_panel_protocol(_input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+	codegen_protocol(ITEM_PANEL_PROTOCOL)
+}
+
+fn codegen_protocol(protocol: &'static str) -> proc_macro::TokenStream {
+	let protocol = Protocol::parse(protocol).unwrap();
+	let interface = protocol
+		.interface
+		.map(|p| {
+			let node_id = p.node_id;
+			let node_id = quote! {
+				const INTERFACE_NODE_ID: u64 = #node_id;
+			};
+			let aspect = generate_aspect(&Aspect {
+				name: "interface".to_string(),
+				id: 0,
+				description: protocol.description.clone(),
+				inherits: vec![],
+				members: p.members,
+			});
+			quote! {
+				#node_id
+				#aspect
+				pub struct Interface;
+				impl crate::nodes::AspectIdentifier for Interface {
+					impl_aspect_for_interface_aspect_id!{}
+				}
+				impl crate::nodes::Aspect for Interface {
+					impl_aspect_for_interface_aspect!{}
+				}
+				pub fn create_interface(client: &std::sync::Arc<crate::core::client::Client>) -> crate::core::error::Result<()>{
+					let node = crate::nodes::Node::from_id(client,INTERFACE_NODE_ID,false);
+					node.add_aspect(Interface);
+					node.add_to_scenegraph()?;
+					Ok(())
+				}
+			}
+		})
+		.unwrap_or_default();
+	let custom_enums = protocol
+		.custom_enums
+		.iter()
+		.map(generate_custom_enum)
+		.reduce(fold_tokens)
+		.unwrap_or_default();
+	let custom_unions = protocol
+		.custom_unions
+		.iter()
+		.map(generate_custom_union)
+		.reduce(fold_tokens)
+		.unwrap_or_default();
+	let custom_structs = protocol
+		.custom_structs
+		.iter()
+		.map(generate_custom_struct)
+		.reduce(fold_tokens)
+		.unwrap_or_default();
+	let aspects = protocol
+		.aspects
+		.iter()
+		.map(generate_aspect)
+		.reduce(fold_tokens)
+		.unwrap_or_default();
+	quote!(#custom_enums #custom_unions #custom_structs #aspects #interface).into()
+}
+
+fn generate_custom_enum(custom_enum: &CustomEnum) -> TokenStream {
+	let name = Ident::new(&custom_enum.name.to_case(Case::Pascal), Span::call_site());
+	let description = &custom_enum.description;
+
+	let argument_decls = custom_enum
+		.variants
+		.iter()
+		.map(|a| Ident::new(&a.to_case(Case::Pascal), Span::call_site()).to_token_stream())
+		.reduce(|a, b| quote!(#a, #b))
+		.unwrap_or_default();
+
+	quote! {
+		#[doc = #description]
+		#[derive(Debug, Clone, Copy, serde_repr::Deserialize_repr, serde_repr::Serialize_repr)]
+		#[repr(u32)]
+		pub enum #name {#argument_decls}
+	}
+}
+fn generate_custom_union(custom_union: &CustomUnion) -> TokenStream {
+	let name = Ident::new(&custom_union.name.to_case(Case::Pascal), Span::call_site());
+	let description = &custom_union.description;
+
+	let option_decls = custom_union
+		.options
+		.iter()
+		.map(generate_union_option)
+		.reduce(|a, b| quote!(#a, #b))
+		.unwrap_or_default();
+
+	quote! {
+		#[doc = #description]
+		#[derive(Debug, Clone, serde::Deserialize, serde::Serialize)]
+		#[serde(tag = "t", content = "c")]
+		pub enum #name {#option_decls}
+	}
+}
+fn generate_union_option(union_option: &UnionOption) -> TokenStream {
+	let name = union_option
+		.name
+		.as_ref()
+		.map(|n| n.to_case(Case::Pascal))
+		.unwrap_or_else(|| argument_type_option_name(&union_option._type));
+	let description = union_option
+		.description
+		.as_ref()
+		.map(|d| quote!(#[doc = #d]))
+		.unwrap_or_default();
+	let identifier = Ident::new(&name, Span::call_site());
+	let _type = generate_argument_type(&union_option._type, false, true);
+	quote! (#description #identifier(#_type))
+}
+fn generate_custom_struct(custom_struct: &CustomStruct) -> TokenStream {
+	let name = Ident::new(&custom_struct.name.to_case(Case::Pascal), Span::call_site());
+	let description = &custom_struct.description;
+
+	let argument_decls = custom_struct
+		.fields
+		.iter()
+		.map(|a| generate_argument_decl(a, true))
+		.map(|d| quote!(pub #d))
+		.reduce(|a, b| quote!(#a, #b))
+		.unwrap_or_default();
+
+	quote! {
+		#[doc = #description]
+		#[derive(Debug, Clone, serde::Deserialize, serde::Serialize)]
+		pub struct #name {#argument_decls}
+	}
+}
+
+fn generate_aspect(aspect: &Aspect) -> TokenStream {
+	let description = &aspect.description;
+	let (client_members, server_members) = aspect.members.iter().split(|m| m.side == Side::Server);
+
+	let client_mod_name = Ident::new(
+		&format!("{}_client", &aspect.name.to_case(Case::Snake)),
+		Span::call_site(),
+	);
+	let client_side_members = client_members
+		.map(|m| generate_member(aspect.id, &aspect.name.to_case(Case::Snake), m))
+		.reduce(fold_tokens)
+		.map(|t| {
+			// TODO: properly import all dependencies
+			quote! {
+				#[allow(clippy::all)]
+				pub mod #client_mod_name {
+					use super::*;
+					#t
+				}
+			}
+		})
+		.unwrap_or_default();
+
+	let opcodes = aspect
+		.members
+		.iter()
+		.map(|m| {
+			let aspect_name = aspect.name.to_case(Case::ScreamingSnake);
+			let member_name = m.name.to_case(Case::ScreamingSnake);
+			let name_type = if m.side == Side::Client {
+				"CLIENT"
+			} else {
+				"SERVER"
+			};
+			let name = Ident::new(
+				&format!("{aspect_name}_{member_name}_{name_type}_OPCODE"),
+				Span::call_site(),
+			);
+			let opcode = m.opcode;
+
+			quote!(pub(crate) const #name: u64 = #opcode;)
+		})
+		.reduce(fold_tokens)
+		.unwrap_or_default();
+	let alias_info = generate_alias_info(aspect);
+
+	let server_side_members = server_members
+		.map(|m| generate_member(aspect.id, &aspect.name.to_case(Case::Pascal), m))
+		.reduce(fold_tokens)
+		.unwrap_or_default();
+	let aspect_trait_name = Ident::new(
+		&format!("{}Aspect", &aspect.name.to_case(Case::Pascal)),
+		Span::call_site(),
+	);
+	let run_signals = aspect
+		.members
+		.iter()
+		.filter(|m| m.side == Side::Server)
+		.filter(|m| m._type == MemberType::Signal)
+		.map(|m| generate_run_member(&aspect_trait_name, MemberType::Signal, m))
+		.reduce(fold_tokens)
+		.unwrap_or_default();
+	let run_methods = aspect
+		.members
+		.iter()
+		.filter(|m| m.side == Side::Server)
+		.filter(|m| m._type == MemberType::Method)
+		.map(|m| generate_run_member(&aspect_trait_name, MemberType::Method, m))
+		.reduce(fold_tokens)
+		.unwrap_or_default();
+	let server_side_members = quote! {
+		#[allow(clippy::all)]
+		#[doc = #description]
+		pub trait #aspect_trait_name {
+			#server_side_members
+		}
+	};
+	let aspect_id_macro_name = Ident::new(
+		&format!(
+			"impl_aspect_for_{}_aspect_id",
+			aspect.name.to_case(Case::Snake)
+		),
+		Span::call_site(),
+	);
+	let aspect_macro_name = Ident::new(
+		&format!(
+			"impl_aspect_for_{}_aspect",
+			aspect.name.to_case(Case::Snake)
+		),
+		Span::call_site(),
+	);
+	let aspect_id = aspect.id;
+	let aspect_macro = quote! {
+		macro_rules! #aspect_id_macro_name {
+			() => {
+				const ID: u64 = #aspect_id;
+			}
+		}
+		macro_rules! #aspect_macro_name {
+			() => {
+				fn as_any(self: Arc<Self>) -> Arc<dyn std::any::Any + Send + Sync + 'static> {
+					self
+				}
+				#[allow(clippy::all)]
+				fn run_signal(
+					&self,
+					_calling_client: std::sync::Arc<crate::core::client::Client>,
+					_node: std::sync::Arc<crate::nodes::Node>,
+					_signal: u64,
+					_message: crate::nodes::Message
+				) -> Result<(), stardust_xr::scenegraph::ScenegraphError> {
+					match _signal {
+						#run_signals
+						_ => Err(stardust_xr::scenegraph::ScenegraphError::MemberNotFound)
+					}
+				}
+				#[allow(clippy::all)]
+				fn run_method(
+					&self,
+					_calling_client: std::sync::Arc<crate::core::client::Client>,
+					_node: std::sync::Arc<crate::nodes::Node>,
+					_method: u64,
+					_message: crate::nodes::Message,
+					_method_response: crate::nodes::MethodResponseSender,
+				) {
+					match _method {
+						#run_methods
+						_ => {
+							let _ = _method_response.send(Err(stardust_xr::scenegraph::ScenegraphError::MemberNotFound));
+						}
+					}
+				}
+			};
+		}
+	};
+	quote!(#opcodes #alias_info #client_side_members #server_side_members #aspect_macro)
+}
+
+fn generate_alias_opcodes(aspect: &Aspect, side: Side, _type: MemberType) -> TokenStream {
+	aspect
+		.members
+		.iter()
+		.filter(|m| m.side == side)
+		.filter(|m| m._type == _type)
+		.map(|m| m.opcode)
+		.map(|o| quote!(#o))
+		.reduce(|a, b| quote!(#a, #b))
+		.unwrap_or_default()
+}
+fn generate_alias_info(aspect: &Aspect) -> TokenStream {
+	let aspect_alias_info_name = Ident::new(
+		&format!(
+			"{}_ASPECT_ALIAS_INFO",
+			aspect.name.to_case(Case::ScreamingSnake)
+		),
+		Span::call_site(),
+	);
+	let local_signals = generate_alias_opcodes(aspect, Side::Server, MemberType::Signal);
+	let local_methods = generate_alias_opcodes(aspect, Side::Server, MemberType::Method);
+	let remote_signals = generate_alias_opcodes(aspect, Side::Client, MemberType::Signal);
+
+	let inherits = aspect
+		.inherits
+		.iter()
+		.map(|a| {
+			Ident::new(
+				&format!("{}_ASPECT_ALIAS_INFO", a.to_case(Case::ScreamingSnake)),
+				Span::call_site(),
+			)
+		})
+		.map(|a| quote!(#a.clone()))
+		.fold(quote!(), |a, b| quote!(#a + #b));
+
+	quote! {
+		lazy_static::lazy_static! {
+			#[allow(clippy::all)]
+			pub static ref #aspect_alias_info_name: crate::nodes::alias::AliasInfo = crate::nodes::alias::AliasInfo {
+				server_signals: vec![#local_signals],
+				server_methods: vec![#local_methods],
+				client_signals: vec![#remote_signals],
+			}
+			#inherits;
+		}
+	}
+}
+
+fn generate_member(aspect_id: u64, aspect_name: &str, member: &Member) -> TokenStream {
+	let opcode = member.opcode;
+	let name = Ident::new(&member.name.to_case(Case::Snake), Span::call_site());
+	let description = &member.description;
+
+	let side = member.side;
+	let _type = member._type;
+
+	let first_args = match member.side {
+		Side::Server => {
+			quote!(_node: std::sync::Arc<crate::nodes::Node>, _calling_client: std::sync::Arc<crate::core::client::Client>)
+		}
+		Side::Client => quote!(_node: &crate::nodes::Node),
+	};
+	let argument_decls = member
+		.arguments
+		.iter()
+		.map(|a| generate_argument_decl(a, member.side == Side::Server))
+		.fold(first_args, |a, b| quote!(#a, #b));
+
+	let argument_uses = member
+		.arguments
+		.iter()
+		.map(|a| generate_argument_serialize(&a.name, &a._type, a.optional))
+		.reduce(|a, b| quote!(#a, #b))
+		.unwrap_or_default();
+	let return_type = member
+		.return_type
+		.as_ref()
+		.map(|r| generate_argument_type(r, false, true))
+		.unwrap_or_else(|| quote!(()));
+	let name_str = name.to_string();
+
+	match (side, _type) {
+		(Side::Client, MemberType::Signal) => {
+			quote! {
+				#[doc = #description]
+				pub fn #name(#argument_decls) -> crate::core::error::Result<()> {
+
+					let result = stardust_xr::schemas::flex::serialize((#argument_uses)).map_err(|e|e.into()).and_then(|serialized|_node.send_remote_signal(#aspect_id, #opcode, serialized));
+					if let Err(err) = result.as_ref() {
+						::tracing::warn!("failed to send remote signal: {}::{}, error: {}",#aspect_name,#name_str,err);
+					} else {
+						::tracing::trace!("sent remote signal: {}::{}",#aspect_name,#name_str);
+					}
+					result
+				}
+			}
+		}
+		(Side::Client, MemberType::Method) => {
+			quote! {
+				#[doc = #description]
+				pub async fn #name(#argument_decls) -> crate::core::error::Result<(#return_type, Vec<std::os::fd::OwnedFd>)> {
+					let result = _node.execute_remote_method_typed(#aspect_id, #opcode, &(#argument_uses), vec![]).await;
+					if let Err(err) = result.as_ref() {
+						::tracing::warn!("failed to call remote method: {}::{}, error: {}",#aspect_name,#name_str,err);
+					} else {
+						::tracing::trace!("called remote method: {}::{}",#aspect_name,#name_str);
+					}
+					result
+				}
+			}
+		}
+		(Side::Server, MemberType::Signal) => {
+			quote! {
+				#[doc = #description]
+				fn #name(#argument_decls) -> crate::core::error::Result<()>;
+			}
+		}
+		(Side::Server, MemberType::Method) => {
+			quote! {
+				#[doc = #description]
+				fn #name(#argument_decls) -> impl std::future::Future<Output = crate::core::error::Result<#return_type>> + Send + Sync + 'static;
+			}
+		}
+	}
+}
+fn generate_run_member(aspect_name: &Ident, _type: MemberType, member: &Member) -> TokenStream {
+	let opcode = member.opcode;
+	let member_name_ident = Ident::new(&member.name, Span::call_site());
+
+	let argument_names = member
+		.arguments
+		.iter()
+		.map(generate_argument_name)
+		.reduce(|a, b| quote!(#a, #b));
+	let argument_types = member
+		.arguments
+		.iter()
+		.map(|a| {
+			let _type = convert_deserializeable_argument_type(&a._type);
+			generate_argument_type(&_type, a.optional, true)
+		})
+		.reduce(|a, b| quote!(#a, #b));
+	// dbg!(&argument_types);
+	let deserialize = argument_names
+		.clone()
+		.zip(argument_types)
+		.map(|(argument_names, argument_types)| {
+			quote!{
+				#[allow(unused_parens)]
+				let (#argument_names): (#argument_types) = stardust_xr::schemas::flex::deserialize(_message.as_ref())?;
+			}
+		})
+		.unwrap_or_default();
+	let serialize = generate_argument_serialize(
+		"result",
+		&member.return_type.clone().unwrap_or(ArgumentType::Empty),
+		false,
+	);
+	let argument_uses = member
+		.arguments
+		.iter()
+		.map(|a| generate_argument_deserialize(&a.name, &a._type, a.optional))
+		.reduce(|a, b| quote!(#a, #b))
+		.unwrap_or_default();
+	let member_name = member_name_ident.to_string();
+	let aspect_name_str = aspect_name.to_string();
+	match _type {
+		MemberType::Signal => quote! {
+			#opcode => { let result = (move || {
+				#deserialize
+				<Self as #aspect_name>::#member_name_ident(_node, _calling_client.clone(), #argument_uses)
+			})().map_err(|e: crate::core::error::ServerError| stardust_xr::scenegraph::ScenegraphError::MemberError { error: e.to_string() });
+				if let Err(err) = result.as_ref() {
+					::tracing::warn!("failed to receive local signal: {}::{}, error: {}",#aspect_name_str,#member_name,err);
+				} else {
+					::tracing::trace!("received local signal: {}::{}",#aspect_name_str,#member_name);
+				}
+				result
+			},
+		},
+		MemberType::Method => quote! {
+			#opcode => _method_response.wrap_async(async move {
+					#deserialize
+					let result = <Self as #aspect_name>::#member_name_ident(_node, _calling_client.clone(), #argument_uses).await;
+					if let Err(err) = result.as_ref() {
+						::tracing::warn!("failed to call local method: {}::{}, error: {}",#aspect_name_str,#member_name,err);
+					} else {
+						::tracing::trace!("called local method: {}::{}",#aspect_name_str,#member_name);
+					};
+					let result = result?;
+					 Ok((#serialize, Vec::<std::os::fd::OwnedFd>::new()))
+			}),
+		},
+	}
+}
+fn generate_argument_name(argument: &Argument) -> TokenStream {
+	Ident::new(&argument.name.to_case(Case::Snake), Span::call_site()).to_token_stream()
+}
+
+fn convert_deserializeable_argument_type(argument_type: &ArgumentType) -> ArgumentType {
+	match argument_type {
+		ArgumentType::Node { .. } => ArgumentType::NodeID,
+		ArgumentType::Vec(v) => {
+			ArgumentType::Vec(Box::new(convert_deserializeable_argument_type(v.as_ref())))
+		}
+		ArgumentType::Map(v) => {
+			ArgumentType::Map(Box::new(convert_deserializeable_argument_type(v.as_ref())))
+		}
+		f => f.clone(),
+	}
+}
+fn generate_argument_deserialize(
+	argument_name: &str,
+	argument_type: &ArgumentType,
+	optional: bool,
+) -> TokenStream {
+	let name = Ident::new(&argument_name.to_case(Case::Snake), Span::call_site());
+	if let ArgumentType::Node { .. } = argument_type {
+		return match optional {
+			true => quote!(#name.map(|n| _calling_client.get_node(#argument_name, n)?)),
+			false => quote!(_calling_client.get_node(#argument_name, #name)?),
+		};
+	}
+	if optional {
+		let mapping = generate_argument_deserialize("o", argument_type, false);
+		return quote!(#name.map(|o| Ok::<_, crate::core::error::ServerError>(#mapping)).transpose()?);
+	}
+
+	match argument_type {
+		ArgumentType::Color => quote!(color::rgba_linear!(#name[0], #name[1], #name[2], #name[3])),
+		ArgumentType::Vec(v) => {
+			let mapping = generate_argument_deserialize("a", v, false);
+			quote!(#name.into_iter().map(|a| Ok(#mapping)).collect::<crate::core::error::Result<Vec<_>>>()?)
+		}
+		ArgumentType::Map(v) => {
+			let mapping = generate_argument_deserialize("a", v, false);
+			quote!(#name.into_iter().map(|(k, a)| Ok((k, #mapping))).collect::<crate::core::error::Result<rustc_hash::FxHashMap<String, _>>>()?)
+		}
+		_ => quote!(#name),
+	}
+}
+fn generate_argument_serialize(
+	argument_name: &str,
+	argument_type: &ArgumentType,
+	optional: bool,
+) -> TokenStream {
+	let name = Ident::new(&argument_name.to_case(Case::Snake), Span::call_site());
+	match argument_type {
+		ArgumentType::Node {
+			_type,
+			return_id_parameter_name: _,
+		} => match optional {
+			true => quote!(#name.map(|n| n.get_id())),
+			false => quote!(#name.get_id()),
+		},
+		ArgumentType::Color => quote!([#name.c.r, #name.c.g, #name.c.b, #name.a]),
+		ArgumentType::Vec(v) => {
+			let mapping = generate_argument_serialize("a", v, false);
+			quote!(#name.into_iter().map(|a| Ok(#mapping)).collect::<crate::core::error::Result<Vec<_>>>()?)
+		}
+		ArgumentType::Map(v) => {
+			let mapping = generate_argument_serialize("a", v, false);
+			quote!(#name.into_iter().map(|(k, a)| Ok((k, #mapping))).collect::<crate::core::error::Result<rustc_hash::FxHashMap<String, _>>>()?)
+		}
+		_ => quote!(#name),
+	}
+}
+fn generate_argument_decl(argument: &Argument, owned_values: bool) -> TokenStream {
+	let name = Ident::new(&argument.name.to_case(Case::Snake), Span::call_site());
+	let mut _type = generate_argument_type(&argument._type, argument.optional, owned_values);
+	quote!(#name: #_type)
+}
+fn argument_type_option_name(argument_type: &ArgumentType) -> String {
+	match argument_type {
+		ArgumentType::Empty => "Empty".to_string(),
+		ArgumentType::Bool => "Bool".to_string(),
+		ArgumentType::Int => "Int".to_string(),
+		ArgumentType::UInt => "UInt".to_string(),
+		ArgumentType::Float => "Float".to_string(),
+		ArgumentType::Vec2(_) => "Vec2".to_string(),
+		ArgumentType::Vec3(_) => "Vec3".to_string(),
+		ArgumentType::Quat => "Quat".to_string(),
+		ArgumentType::Mat4 => "Mat4".to_string(),
+		ArgumentType::Color => "Color".to_string(),
+		ArgumentType::String => "String".to_string(),
+		ArgumentType::Bytes => "Bytes".to_string(),
+		ArgumentType::Vec(v) => format!("{}Vector", argument_type_option_name(v)),
+		ArgumentType::Map(m) => format!("{}Map", argument_type_option_name(m)),
+		ArgumentType::NodeID => "Node ID".to_string(),
+		ArgumentType::Datamap => "Datamap".to_string(),
+		ArgumentType::ResourceID => "ResourceID".to_string(),
+		ArgumentType::Enum(e) => e.clone(),
+		ArgumentType::Union(u) => u.clone(),
+		ArgumentType::Struct(s) => s.clone(),
+		ArgumentType::Node { _type, .. } => _type.clone(),
+		ArgumentType::Fd => "File Descriptor".to_string(),
+	}
+}
+fn generate_argument_type(
+	argument_type: &ArgumentType,
+	optional: bool,
+	owned: bool,
+) -> TokenStream {
+	let _type = match argument_type {
+		ArgumentType::Empty => quote!(()),
+		ArgumentType::Bool => quote!(bool),
+		ArgumentType::Int => quote!(i32),
+		ArgumentType::UInt => quote!(u32),
+		ArgumentType::Float => quote!(f32),
+		ArgumentType::Vec2(t) => {
+			let t = generate_argument_type(t, false, true);
+			quote!(stardust_xr::values::Vector2<#t>)
+		}
+		ArgumentType::Vec3(t) => {
+			let t = generate_argument_type(t, false, true);
+			quote!(stardust_xr::values::Vector3<#t>)
+		}
+		ArgumentType::Quat => quote!(stardust_xr::values::Quaternion),
+		ArgumentType::Mat4 => quote!(stardust_xr::values::Mat4),
+		ArgumentType::Color => quote!(stardust_xr::values::Color),
+		ArgumentType::Bytes => {
+			if !owned {
+				quote!(&[u8])
+			} else {
+				quote!(Vec<u8>)
+			}
+		}
+		ArgumentType::String => {
+			if !owned {
+				quote!(&str)
+			} else {
+				quote!(String)
+			}
+		}
+		ArgumentType::Vec(t) => {
+			let t = generate_argument_type(t, false, true);
+			if !owned {
+				quote!(&[#t])
+			} else {
+				quote!(Vec<#t>)
+			}
+		}
+		ArgumentType::Map(t) => {
+			let t = generate_argument_type(t, false, true);
+
+			if !owned {
+				quote!(&stardust_xr::values::Map<String, #t>)
+			} else {
+				quote!(stardust_xr::values::Map<String, #t>)
+			}
+		}
+		ArgumentType::NodeID => quote!(u64),
+		ArgumentType::Datamap => {
+			if !owned {
+				quote!(&stardust_xr::values::Datamap)
+			} else {
+				quote!(stardust_xr::values::Datamap)
+			}
+		}
+		ArgumentType::ResourceID => {
+			if !owned {
+				quote!(&stardust_xr::values::ResourceID)
+			} else {
+				quote!(stardust_xr::values::ResourceID)
+			}
+		}
+		ArgumentType::Enum(e) => {
+			let enum_name = Ident::new(&e.to_case(Case::Pascal), Span::call_site());
+			quote!(#enum_name)
+		}
+		ArgumentType::Union(u) => {
+			let union_name = Ident::new(&u.to_case(Case::Pascal), Span::call_site());
+			quote!(#union_name)
+		}
+		ArgumentType::Struct(s) => {
+			let struct_name = Ident::new(&s.to_case(Case::Pascal), Span::call_site());
+			if !owned {
+				quote!(&#struct_name)
+			} else {
+				quote!(#struct_name)
+			}
+		}
+		ArgumentType::Node {
+			_type,
+			return_id_parameter_name: _,
+		} => {
+			if !owned {
+				quote!(&std::sync::Arc<crate::nodes::Node>)
+			} else {
+				quote!(std::sync::Arc<crate::nodes::Node>)
+			}
+		}
+		ArgumentType::Fd => {
+			quote!(&std::os::fd::OwnedFd)
+		}
+	};
+
+	if optional {
+		quote!(Option<#_type>)
+	} else {
+		_type
+	}
+}

flake.lock

@@ -1,24 +1,23 @@
 {
   "nodes": {
-    "fenix": {
+    "crane": {
       "inputs": {
         "nixpkgs": [
           "flatland",
           "nixpkgs"
-        ],
-        "rust-analyzer-src": "rust-analyzer-src"
+        ]
       },
       "locked": {
-        "lastModified": 1678775037,
-        "narHash": "sha256-chx0tWnXKpcayPkPY3Qh+2hNwptvX8XE3o+fYZ+GNzg=",
-        "owner": "nix-community",
-        "repo": "fenix",
-        "rev": "ee59e1c769657b1e27e608f8b981fa8f6b715583",
+        "lastModified": 1712681629,
+        "narHash": "sha256-bMDXn4AkTXLCpoZbII6pDGoSeSe9gI87jxPsHRXgu/E=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "220387ac8e99cbee0ca4c95b621c4bc782b6a235",
         "type": "github"
       },
       "original": {
-        "owner": "nix-community",
-        "repo": "fenix",
+        "owner": "ipetkov",
+        "repo": "crane",
         "type": "github"
       }
     },
@@ -27,11 +26,11 @@
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1690933134,
-        "narHash": "sha256-ab989mN63fQZBFrkk4Q8bYxQCktuHmBIBqUG1jl6/FQ=",
+        "lastModified": 1722555600,
+        "narHash": "sha256-XOQkdLafnb/p9ij77byFQjDf5m5QYl9b2REiVClC+x4=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "59cf3f1447cfc75087e7273b04b31e689a8599fb",
+        "rev": "8471fe90ad337a8074e957b69ca4d0089218391d",
         "type": "github"
       },
       "original": {
@@ -42,14 +41,17 @@
     },
     "flake-parts_2": {
       "inputs": {
-        "nixpkgs-lib": "nixpkgs-lib_2"
+        "nixpkgs-lib": [
+          "hercules-ci-effects",
+          "nixpkgs"
+        ]
       },
       "locked": {
-        "lastModified": 1688466019,
-        "narHash": "sha256-VeM2akYrBYMsb4W/MmBo1zmaMfgbL4cH3Pu8PGyIwJ0=",
+        "lastModified": 1712014858,
+        "narHash": "sha256-sB4SWl2lX95bExY2gMFG5HIzvva5AVMJd4Igm+GpZNw=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "8e8d955c22df93dbe24f19ea04f47a74adbdc5ec",
+        "rev": "9126214d0a59633752a136528f5f3b9aa8565b7d",
         "type": "github"
       },
       "original": {
@@ -57,39 +59,17 @@
         "type": "indirect"
       }
     },
-    "flake-parts_3": {
-      "inputs": {
-        "nixpkgs-lib": [
-          "hercules-ci-effects",
-          "hercules-ci-agent",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1688466019,
-        "narHash": "sha256-VeM2akYrBYMsb4W/MmBo1zmaMfgbL4cH3Pu8PGyIwJ0=",
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "rev": "8e8d955c22df93dbe24f19ea04f47a74adbdc5ec",
-        "type": "github"
-      },
-      "original": {
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "type": "github"
-      }
-    },
     "flatland": {
       "inputs": {
-        "fenix": "fenix",
+        "crane": "crane",
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1694190588,
-        "narHash": "sha256-tcvp09A54AbXkkXS/P6Ed5TUWzMEuQ9h/fnfLz7gnJc=",
+        "lastModified": 1713050562,
+        "narHash": "sha256-m7c6XpmpTM1URuqMG2KqtaWbL2Vt8vJFJtmvq123BmY=",
         "owner": "StardustXR",
         "repo": "flatland",
-        "rev": "3867067452761959a95497d6589f9336b347270c",
+        "rev": "b3b0f29c4ea1b82c96cf9de507837bf15a5e4c0e",
         "type": "github"
       },
       "original": {
@@ -98,53 +78,17 @@
         "type": "github"
       }
     },
-    "haskell-flake": {
-      "locked": {
-        "lastModified": 1684780604,
-        "narHash": "sha256-2uMZsewmRn7rRtAnnQNw1lj0uZBMh4m6Cs/7dV5YF08=",
-        "owner": "srid",
-        "repo": "haskell-flake",
-        "rev": "74210fa80a49f1b6f67223debdbf1494596ff9f2",
-        "type": "github"
-      },
-      "original": {
-        "owner": "srid",
-        "ref": "0.3.0",
-        "repo": "haskell-flake",
-        "type": "github"
-      }
-    },
-    "hercules-ci-agent": {
-      "inputs": {
-        "flake-parts": "flake-parts_3",
-        "haskell-flake": "haskell-flake",
-        "nixpkgs": "nixpkgs_2"
-      },
-      "locked": {
-        "lastModified": 1688568579,
-        "narHash": "sha256-ON0M56wtY/TIIGPkXDlJboAmuYwc73Hi8X9iJGtxOhM=",
-        "owner": "hercules-ci",
-        "repo": "hercules-ci-agent",
-        "rev": "367dd8cd649b57009a6502e878005a1e54ad78c5",
-        "type": "github"
-      },
-      "original": {
-        "id": "hercules-ci-agent",
-        "type": "indirect"
-      }
-    },
     "hercules-ci-effects": {
       "inputs": {
         "flake-parts": "flake-parts_2",
-        "hercules-ci-agent": "hercules-ci-agent",
-        "nixpkgs": "nixpkgs_3"
+        "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1689397210,
-        "narHash": "sha256-fVxZnqxMbsDkB4GzGAs/B41K0wt/e+B/fLxmTFF/S20=",
+        "lastModified": 1719226092,
+        "narHash": "sha256-YNkUMcCUCpnULp40g+svYsaH1RbSEj6s4WdZY/SHe38=",
         "owner": "hercules-ci",
         "repo": "hercules-ci-effects",
-        "rev": "0a63bfa3f00a3775ea3a6722b247880f1ffe91ce",
+        "rev": "11e4b8dc112e2f485d7c97e1cee77f9958f498f5",
         "type": "github"
       },
       "original": {
@@ -155,63 +99,39 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1678703398,
-        "narHash": "sha256-Y1mW3dBsoWLHpYm+UIHb5VZ7rx024NNHaF16oZBx++o=",
+        "lastModified": 1712791164,
+        "narHash": "sha256-3sbWO1mbpWsLepZGbWaMovSO7ndZeFqDSdX0hZ9nVyw=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "67f26c1cfc5d5783628231e776a81c1ade623e0b",
+        "rev": "1042fd8b148a9105f3c0aca3a6177fd1d9360ba5",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-22.11",
+        "ref": "nixos-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "nixpkgs-lib": {
       "locked": {
-        "dir": "lib",
-        "lastModified": 1690881714,
-        "narHash": "sha256-h/nXluEqdiQHs1oSgkOOWF+j8gcJMWhwnZ9PFabN6q0=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "9e1960bc196baf6881340d53dccb203a951745a2",
-        "type": "github"
+        "lastModified": 1722555339,
+        "narHash": "sha256-uFf2QeW7eAHlYXuDktm9c25OxOyCoUOQmh5SZ9amE5Q=",
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs/archive/a5d394176e64ab29c852d03346c1fc9b0b7d33eb.tar.gz"
       },
       "original": {
-        "dir": "lib",
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs-lib_2": {
-      "locked": {
-        "dir": "lib",
-        "lastModified": 1688049487,
-        "narHash": "sha256-100g4iaKC9MalDjUW9iN6Jl/OocTDtXdeAj7pEGIRh4=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "4bc72cae107788bf3f24f30db2e2f685c9298dc9",
-        "type": "github"
-      },
-      "original": {
-        "dir": "lib",
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs/archive/a5d394176e64ab29c852d03346c1fc9b0b7d33eb.tar.gz"
       }
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1688322751,
-        "narHash": "sha256-eW62dC5f33oKZL7VWlomttbUnOTHrAbte9yNUNW8rbk=",
+        "lastModified": 1713714899,
+        "narHash": "sha256-+z/XjO3QJs5rLE5UOf015gdVauVRQd2vZtsFkaXBq2Y=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "0fbe93c5a7cac99f90b60bdf5f149383daaa615f",
+        "rev": "6143fc5eeb9c4f00163267708e26191d1e918932",
         "type": "github"
       },
       "original": {
@@ -223,26 +143,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1689393711,
-        "narHash": "sha256-l3gyTPy/qWLDk1CY1EgYwlsxcGxN2aVd7MlCzQa69rk=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "27fcd46fa18df36d270174246e7bd8f1787129ff",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_4": {
-      "locked": {
-        "lastModified": 1692734709,
-        "narHash": "sha256-SCFnyHCyYjwEmgUsHDDuU0TsbVMKeU1vwkR+r7uS2Rg=",
+        "lastModified": 1723991338,
+        "narHash": "sha256-Grh5PF0+gootJfOJFenTTxDTYPidA3V28dqJ/WV7iis=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "b85ed9dcbf187b909ef7964774f8847d554fab3b",
+        "rev": "8a3354191c0d7144db9756a74755672387b702ba",
         "type": "github"
       },
       "original": {
@@ -257,24 +162,7 @@
         "flake-parts": "flake-parts",
         "flatland": "flatland",
         "hercules-ci-effects": "hercules-ci-effects",
-        "nixpkgs": "nixpkgs_4"
-      }
-    },
-    "rust-analyzer-src": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1678695923,
-        "narHash": "sha256-rDhiiU8P6sf6mgj5IKgCuTRN9uYeqWr6xl4XLkKnMWg=",
-        "owner": "rust-lang",
-        "repo": "rust-analyzer",
-        "rev": "95497533524537b1cc7a2870ce94b0b14503be8b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "rust-lang",
-        "ref": "nightly",
-        "repo": "rust-analyzer",
-        "type": "github"
+        "nixpkgs": "nixpkgs_3"
       }
     }
   },

flake.nix

@@ -1,7 +1,9 @@
 {
   nixConfig = {
     extra-substituters = [ "https://stardustxr.cachix.org" ];
-    extra-trusted-public-keys = [ "stardustxr.cachix.org-1:mWSn8Ap2RLsIWT/8gsj+VfbJB6xoOkPaZpbjO+r9HBo=" ];
+    extra-trusted-public-keys = [
+      "stardustxr.cachix.org-1:mWSn8Ap2RLsIWT/8gsj+VfbJB6xoOkPaZpbjO+r9HBo="
+    ];
   };
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
@@ -12,16 +14,23 @@
     # it to create VM Tests
     flatland.url = "github:StardustXR/flatland";
   };
-  outputs = inputs@{ self, flake-parts, nixpkgs, hercules-ci-effects, flatland, ... }:
+  outputs =
+    inputs@{
+      self,
+      flake-parts,
+      nixpkgs,
+      hercules-ci-effects,
+      flatland,
+      ...
+    }:
     let
       name = (builtins.fromTOML (builtins.readFile ./Cargo.toml)).package.name;
       src = builtins.path {
         name = "${name}-source";
         path = toString ./.;
-        filter = path: type:
-          nixpkgs.lib.all
-          (n: builtins.baseNameOf path != n)
-          [
+        filter =
+          path: type:
+          nixpkgs.lib.all (n: builtins.baseNameOf path != n) [
             "flake.nix"
             "flake.lock"
             "nix"
@@ -30,51 +39,82 @@
       };
     in
     flake-parts.lib.mkFlake { inherit inputs; } {
-      imports = [
-        flake-parts.flakeModules.easyOverlay
+      imports = [ flake-parts.flakeModules.easyOverlay ];
+      systems = [
+        "aarch64-linux"
+        "x86_64-linux"
+        "riscv64-linux"
       ];
-      systems = [ "aarch64-linux" "x86_64-linux" "riscv64-linux" ];
-      perSystem = { config, self', inputs', pkgs, system, ... }: {
-        _module.args.pkgs = import inputs.nixpkgs { inherit system; overlays = [ inputs.self.overlays.default ]; };
-        overlayAttrs = config.packages;
-        packages = {
-          default = self'.packages.${name};
-          gnome-graphical-test = self'.checks.gnome-graphical-test;
-          "${name}" = pkgs.callPackage ./nix/stardust-xr-server.nix { inherit name src; };
-        };
-        checks.gnome-graphical-test = pkgs.nixosTest (import ./nix/gnome-graphical-test.nix { inherit pkgs self; });
-        devShells.default = pkgs.mkShell {
-          inputsFrom = [ self'.packages.default ];
-          LIBCLANG_PATH = "${pkgs.libclang.lib}/lib";
-        };
-      };
-      flake = {
-        herculesCI.ciSystems = [ "x86_64-linux" ];
-        effects = let
-          pkgs = nixpkgs.legacyPackages.x86_64-linux;
-          hci-effects = hercules-ci-effects.lib.withPkgs pkgs;
-        in { branch, rev, ... }: {
-          gnome-graphical-test = hci-effects.mkEffect {
-            secretsMap."stardustxrDiscord" = "stardustxrDiscord";
-            secretsMap."stardustxrIpfs" = "stardustxrIpfs";
-            effectScript = ''
-              readSecretString stardustxrDiscord .webhook > .webhook
-              readSecretString stardustxrIpfs .basicauth > .basicauth
-              set -x
-              export RESPONSE=$(curl -H @.basicauth -F file=@${self.packages."x86_64-linux".gnome-graphical-test}/screen.png https://ipfs-api.stardustxr.org/api/v0/add)
-              export CID=$(echo "$RESPONSE" | ${pkgs.jq}/bin/jq -r .Hash)
-              set +x
-              export ADDRESS="https://ipfs.stardustxr.org/ipfs/$CID"
-              ${pkgs.discord-sh}/bin/discord.sh \
-                --description "\`stardustxr/server\` has been modified, here's how it renders \`weston-cliptest\` on \`flatland\` via \`monado-service\` inside of the \`gnome-graphical-test\`" \
-                --field "Branch;${branch}" \
-                --field "Commit ID;${rev}" \
-                --field "Flatland Revision;${flatland.rev}" \
-                --field "Reproducer;\`nix build github:stardustxr/server/${rev}#gnome-graphical-test\`" \
-                --image "$ADDRESS"
-            '';
+      perSystem =
+        {
+          config,
+          self',
+          inputs',
+          pkgs,
+          system,
+          ...
+        }:
+        {
+          _module.args.pkgs = import inputs.nixpkgs {
+            inherit system;
+            overlays = [ inputs.self.overlays.default ];
+          };
+          overlayAttrs = config.packages;
+          packages =
+            let
+              sk_gpu = pkgs.callPackage ./nix/sk_gpu.nix { };
+            in
+            {
+              default = self'.packages.${name};
+              gnome-graphical-test = self'.checks.gnome-graphical-test;
+              "${name}" = pkgs.callPackage ./nix/stardust-xr-server.nix {
+                inherit name src sk_gpu;
+              };
+            };
+          apps.default = {
+            type = "app";
+            program = self'.packages.${name} + "/bin/stardust-xr-server";
+          };
+          checks.gnome-graphical-test = pkgs.nixosTest (
+            import ./nix/gnome-graphical-test.nix { inherit pkgs self; }
+          );
+          devShells.default = pkgs.mkShell {
+            inputsFrom = [ self'.packages.default ];
+            LIBCLANG_PATH = "${pkgs.libclang.lib}/lib";
           };
         };
+      flake = {
+        herculesCI.ciSystems = [ "x86_64-linux" ];
+        effects =
+          let
+            pkgs = nixpkgs.legacyPackages.x86_64-linux;
+            hci-effects = hercules-ci-effects.lib.withPkgs pkgs;
+          in
+          { ref, rev, ... }:
+          {
+            gnome-graphical-test = hci-effects.mkEffect {
+              secretsMap."stardustxrDiscord" = "stardustxrDiscord";
+              secretsMap."stardustxrIpfs" = "stardustxrIpfs";
+              effectScript = ''
+                readSecretString stardustxrDiscord .webhook > .webhook
+                readSecretString stardustxrIpfs .basicauth > .basicauth
+                set -x
+                export RESPONSE=$(curl -H @.basicauth -F file=@${
+                  self.packages."x86_64-linux".gnome-graphical-test
+                }/screen.png https://ipfs-api.stardustxr.org/api/v0/add)
+                export CID=$(echo "$RESPONSE" | ${pkgs.jq}/bin/jq -r .Hash)
+                set +x
+                export ADDRESS="https://ipfs.stardustxr.org/ipfs/$CID"
+                ${pkgs.discord-sh}/bin/discord.sh \
+                  --description "\`stardustxr/server\` has been modified, here's how it renders \`weston-cliptest\` on \`flatland\` via \`monado-service\` inside of the \`gnome-graphical-test\`" \
+                  --field "Ref;${ref}" \
+                  --field "Commit ID;${rev}" \
+                  --field "Flatland Revision;${flatland.rev}" \
+                  --field "Reproducer;\`nix build github:stardustxr/server/${rev}#gnome-graphical-test\`" \
+                  --image "$ADDRESS"
+              '';
+            };
+          };
       };
     };
 }

justfile

@@ -0,0 +1,12 @@
+PREFIX := "usr"
+BINARY := PREFIX / "bin"
+DESTDIR := "/"
+
+build:
+    cargo build --release
+
+test:
+	cargo test
+
+install:
+    install -Dm755 target/release/stardust-xr-server {{ DESTDIR }}{{ BINARY }}/stardust-xr-server

nix/meshoptimizer.nix

@@ -0,0 +1,27 @@
+{ lib, stdenv, fetchFromGitHub, cmake }:
+
+stdenv.mkDerivation rec {
+  pname = "meshoptimizer";
+  version = "0.20";
+
+  src = fetchFromGitHub {
+    owner = "zeux";
+    repo = "meshoptimizer";
+    rev = "c21d3be6ddf627f8ca852ba4b6db9903b0557858";
+    sha256 = "sha256-QCxpM2g8WtYSZHkBzLTJNQ/oHb5j/n9rjaVmZJcCZIA=";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  cmakeFlags = [
+    "-DCMAKE_POSITION_INDEPENDENT_CODE=ON"
+  ];
+
+  meta = with lib; {
+    description = "Mesh optimization library that makes meshes smaller and faster to render";
+    homepage = "https://github.com/zeux/meshoptimizer";
+    license = licenses.mit;
+    platforms = platforms.all;
+  };
+}
+  

nix/sk_gpu.nix

@@ -0,0 +1,16 @@
+{ stdenv, fetchurl, unzip }:
+
+let
+  sk_gpu_zip = fetchurl {
+    url =
+      "https://github.com/StereoKit/sk_gpu/releases/download/v2024.8.16/sk_gpu.v2024.8.16.zip";
+    sha256 = "sha256-Wk3PZFlWqhrsQ8xG0sQaV2xSasdg2D7TMiPvl/CgtGU=";
+  };
+in stdenv.mkDerivation rec {
+  name = "sk_gpu";
+  src = sk_gpu_zip;
+  unpackPhase = ''
+    unzip -d $out ${sk_gpu_zip}
+  '';
+  nativeBuildInputs = [ unzip ];
+}

nix/stardust-xr-server.nix

@@ -1,17 +1,25 @@
 { rustPlatform
 , src
 , name
-, openxr-loader
 , libGL
 , mesa
 , xorg
 , fontconfig
 , libxkbcommon
 , libclang
+
 , cmake
 , cpm-cmake
 , pkg-config
 , llvmPackages
+, fetchFromGitHub
+, sk_gpu
+, libXau
+
+, libXdmcp
+, stdenv
+, lib
+, openxr-loader
 }:
 
 rustPlatform.buildRustPackage rec {
@@ -20,21 +28,59 @@ rustPlatform.buildRustPackage rec {
     lockFile = (src + "/Cargo.lock");
     allowBuiltinFetchGit = true;
   };
+  buildFeatures = [ "local_deps" ];
+  FORCE_LOCAL_DEPS = true;
+  CPM_LOCAL_PACKAGES_ONLY = true;
   CPM_SOURCE_CACHE = "./build";
-  postPatch = ''
-    sk=$(echo $cargoDepsCopy/stereokit-sys-*/StereoKit)
+  CPM_USE_LOCAL_PACKAGES = true;
+  CPM_DOWNLOAD_ALL = false;
+
+  meshoptimizer = fetchFromGitHub {
+    owner = "zeux";
+    repo = "meshoptimizer";
+    rev = "c21d3be6ddf627f8ca852ba4b6db9903b0557858";
+    sha256 = "sha256-QCxpM2g8WtYSZHkBzLTJNQ/oHb5j/n9rjaVmZJcCZIA=";
+  };
+  basis_universal = fetchFromGitHub {
+    owner = "BinomialLLC";
+    repo = "basis_universal";
+    rev = "900e40fb5d2502927360fe2f31762bdbb624455f";
+    sha256 = "sha256-zBRAXgG5Fi6+5uPQCI/RCGatY6O4ELuYBoKrPNn4K+8=";
+  };
+
+  DEP_MESHOPTIMIZER_SOURCE = "${meshoptimizer}";
+  DEP_BASIS_UNIVERSAL_SOURCE = "${basis_universal}";
+  DEP_SK_GPU_SOURCE = "${sk_gpu}";
+
+  postPatch = let libPath = lib.makeLibraryPath [ stdenv.cc.cc.lib ];
+  in ''
+    sk=$(echo $cargoDepsCopy/stereokit-rust-*/StereoKit)
     mkdir -p $sk/build/cpm
 
     # This is not ideal, the original approach was to fetch the exact cmake
     # file version that was wanted from GitHub directly, but at least this way it comes from Nixpkgs.. so meh
-    cp ${cpm-cmake}/share/cpm/CPM.cmake $sk/build/cpm/CPM_0.32.2.cmake
+    cp ${cpm-cmake}/share/cpm/CPM.cmake $sk/build/cpm/CPM_0.38.7.cmake
+    mkdir -p $sk/sk_gpu
+    cp -R ${sk_gpu}/* $sk/sk_gpu
+    chmod -R 755 $sk/sk_gpu/tools/linux_x64/*
+    export DEP_SK_GPU_SOURCE=$sk/sk_gpu
+    export LD_LIBRARY_PATH="${stdenv.cc.cc.lib}/lib";
+                    patchelf --set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
+                      --set-rpath "${libPath}" \
+                    $sk/sk_gpu/tools/linux_x64/skshaderc
   '';
-  nativeBuildInputs = [
-    cmake pkg-config llvmPackages.libcxxClang
-  ];
+  nativeBuildInputs = [ cmake pkg-config llvmPackages.libcxxClang ];
   buildInputs = [
-    openxr-loader libGL mesa xorg.libX11 fontconfig libxkbcommon
+    libGL
+    mesa
+    xorg.libX11.dev
+    xorg.libXft
+    xorg.libXfixes
+    fontconfig
+    libxkbcommon
+    libXau
+    libXdmcp
+    openxr-loader
   ];
   LIBCLANG_PATH = "${libclang.lib}/lib";
 }
-

src/core/buffers.rs

@@ -1,50 +0,0 @@
-use std::ffi::c_void;
-
-use color_eyre::eyre::{ensure, Result};
-use smithay::backend::{egl::EGLContext, renderer::gles::GlesRenderer};
-use stereokit as sk;
-
-struct EGLRawHandles {
-	display: *const c_void,
-	config: *const c_void,
-	context: *const c_void,
-}
-fn get_sk_egl() -> Result<EGLRawHandles> {
-	ensure!(
-		unsafe { sk::sys::backend_graphics_get() }
-			== sk::sys::backend_graphics__backend_graphics_opengles_egl,
-		"StereoKit is not running using EGL!"
-	);
-
-	Ok(unsafe {
-		EGLRawHandles {
-			display: sk::sys::backend_opengl_egl_get_display() as *const c_void,
-			config: sk::sys::backend_opengl_egl_get_config() as *const c_void,
-			context: sk::sys::backend_opengl_egl_get_context() as *const c_void,
-		}
-	})
-}
-
-pub struct BufferManager {
-	pub renderer: GlesRenderer,
-}
-impl BufferManager {
-	pub fn new() -> Result<Self> {
-		let egl_raw_handles = get_sk_egl()?;
-		let renderer = unsafe {
-			GlesRenderer::new(EGLContext::from_raw(
-				egl_raw_handles.display,
-				egl_raw_handles.config,
-				egl_raw_handles.context,
-			)?)?
-		};
-
-		Ok(BufferManager { renderer })
-	}
-
-	pub fn make_context_current(&self) {
-		unsafe {
-			let _ = self.renderer.egl_context().make_current();
-		}
-	}
-}

src/core/client.rs

@@ -1,42 +1,57 @@
 use super::{
-	client_state::{ClientState, CLIENT_STATES},
+	client_state::{CLIENT_STATES, ClientStateParsed},
+	destroy_queue,
 	scenegraph::Scenegraph,
 };
 use crate::{
 	core::{registry::OwnedRegistry, task},
-	nodes::{audio, data, drawable, fields, hmd, input, items, root::Root, spatial, Node},
+	nodes::{
+		Node, audio, drawable, fields, input, items,
+		root::{ClientState, Root},
+		spatial,
+	},
 };
-use color_eyre::eyre::{eyre, Result};
+use color_eyre::eyre::{Result, eyre};
+use global_counter::primitive::exact::CounterU32;
 use lazy_static::lazy_static;
-use once_cell::sync::OnceCell;
 use parking_lot::Mutex;
 use rustc_hash::FxHashMap;
-use stardust_xr::{
-	messenger::{self, MessageSenderHandle},
-	schemas::flex::serialize,
+use stardust_xr::messenger::{self, MessageSenderHandle};
+use std::{
+	fmt::Debug,
+	fs,
+	iter::FromIterator,
+	path::PathBuf,
+	sync::{Arc, OnceLock},
+	time::Instant,
 };
-use std::{fs, iter::FromIterator, path::PathBuf, sync::Arc};
-use tokio::{net::UnixStream, task::JoinHandle};
+use tokio::{net::UnixStream, sync::watch, task::JoinHandle};
 use tracing::info;
 
 lazy_static! {
 	pub static ref CLIENTS: OwnedRegistry<Client> = OwnedRegistry::new();
+	static ref INTERNAL_CLIENT_MESSAGE_TIMES: (watch::Sender<Instant>, watch::Receiver<Instant>) = watch::channel(Instant::now());
 	pub static ref INTERNAL_CLIENT: Arc<Client> = CLIENTS.add(Client {
 		pid: None,
 		// env: None,
 		exe: None,
 
-		dispatch_join_handle: OnceCell::new(),
-		flush_join_handle: OnceCell::new(),
-		disconnect_status: OnceCell::new(),
+		dispatch_join_handle: OnceLock::new(),
+		flush_join_handle: OnceLock::new(),
+		disconnect_status: OnceLock::new(),
 
+		id_counter: CounterU32::new(0),
+		message_last_received: INTERNAL_CLIENT_MESSAGE_TIMES.1.clone(),
 		message_sender_handle: None,
 		scenegraph: Default::default(),
-		root: OnceCell::new(),
+		root: OnceLock::new(),
 		base_resource_prefixes: Default::default(),
-		state: Arc::new(ClientState::default()),
+		state: OnceLock::default(),
 	});
 }
+pub fn tick_internal_client() {
+	let _ = INTERNAL_CLIENT_MESSAGE_TIMES.0.send(Instant::now());
+}
 
 pub fn get_env(pid: i32) -> Result<FxHashMap<String, String>, std::io::Error> {
 	let env = fs::read_to_string(format!("/proc/{pid}/environ"))?;
@@ -46,7 +61,7 @@ pub fn get_env(pid: i32) -> Result<FxHashMap<String, String>, std::io::Error> {
 			.map(|(k, v)| (k.to_string(), v.to_string())),
 	))
 }
-pub fn state(env: &FxHashMap<String, String>) -> Option<Arc<ClientState>> {
+pub fn state(env: &FxHashMap<String, String>) -> Option<Arc<ClientStateParsed>> {
 	let token = env.get("STARDUST_STARTUP_TOKEN")?;
 	CLIENT_STATES.lock().get(token).cloned()
 }
@@ -55,15 +70,17 @@ pub struct Client {
 	pub pid: Option<i32>,
 	// env: Option<FxHashMap<String, String>>,
 	exe: Option<PathBuf>,
-	dispatch_join_handle: OnceCell<JoinHandle<Result<()>>>,
-	flush_join_handle: OnceCell<JoinHandle<Result<()>>>,
-	disconnect_status: OnceCell<Result<()>>,
+	dispatch_join_handle: OnceLock<JoinHandle<Result<()>>>,
+	flush_join_handle: OnceLock<JoinHandle<Result<()>>>,
+	disconnect_status: OnceLock<Result<()>>,
 
+	id_counter: CounterU32,
+	message_last_received: watch::Receiver<Instant>,
 	pub message_sender_handle: Option<MessageSenderHandle>,
 	pub scenegraph: Arc<Scenegraph>,
-	pub root: OnceCell<Arc<Root>>,
+	pub root: OnceLock<Arc<Root>>,
 	pub base_resource_prefixes: Mutex<Vec<PathBuf>>,
-	pub state: Arc<ClientState>,
+	pub state: OnceLock<ClientState>,
 }
 impl Client {
 	pub fn from_connection(connection: UnixStream) -> Result<Arc<Self>> {
@@ -83,40 +100,37 @@ impl Client {
 		let state = env
 			.as_ref()
 			.and_then(state)
-			.unwrap_or_else(|| Arc::new(ClientState::default()));
+			.unwrap_or_else(|| Arc::new(ClientStateParsed::default()));
 
+		let (message_time_tx, message_last_received) = watch::channel(Instant::now());
 		let client = CLIENTS.add(Client {
 			pid,
 			// env,
 			exe: exe.clone(),
 
-			dispatch_join_handle: OnceCell::new(),
-			flush_join_handle: OnceCell::new(),
-			disconnect_status: OnceCell::new(),
+			dispatch_join_handle: OnceLock::new(),
+			flush_join_handle: OnceLock::new(),
+			disconnect_status: OnceLock::new(),
 
+			id_counter: CounterU32::new(256),
+			message_last_received,
 			message_sender_handle: Some(messenger_tx.handle()),
 			scenegraph: scenegraph.clone(),
-			root: OnceCell::new(),
+			root: OnceLock::new(),
 			base_resource_prefixes: Default::default(),
-			state,
+			state: OnceLock::default(),
 		});
 		let _ = client.scenegraph.client.set(Arc::downgrade(&client));
-		let _ = client.root.set(Root::create(&client)?);
-		hmd::make_alias(&client)?;
+		let _ = client.root.set(Root::create(&client, state.root)?);
 		spatial::create_interface(&client)?;
 		fields::create_interface(&client)?;
 		drawable::create_interface(&client)?;
 		audio::create_interface(&client)?;
-		data::create_interface(&client)?;
-		items::create_interface(&client)?;
 		input::create_interface(&client)?;
+		items::camera::create_interface(&client)?;
+		items::panel::create_interface(&client)?;
 
-		client
-			.root
-			.get()
-			.unwrap()
-			.node
-			.send_remote_signal("restore_state", serialize(client.state.apply_to(&client))?)?;
+		let _ = client.state.set(state.apply_to(&client));
 
 		let pid_printable = pid
 			.map(|pid| pid.to_string())
@@ -128,7 +142,7 @@ impl Client {
 					.map(|exe| exe.to_string())
 			})
 			.unwrap_or_else(|| "??".to_string());
-		let _ = client.dispatch_join_handle.get_or_try_init(|| {
+		let _ = client.dispatch_join_handle.get_or_init(|| {
 			task::new(
 				|| {
 					format!(
@@ -140,34 +154,31 @@ impl Client {
 					let client = client.clone();
 					async move {
 						loop {
-							match messenger_rx.dispatch(&*scenegraph).await {
-								Err(e) => {
-									client.disconnect(Err(e.into()));
-								}
-								_ => (),
+							if let Err(e) = messenger_rx.dispatch(&*scenegraph).await {
+								client.disconnect(Err(e.into()));
 							}
+							let _ = message_time_tx.send(Instant::now());
 						}
 					}
 				},
 			)
+			.unwrap()
 		});
-		let _ = client.flush_join_handle.get_or_try_init(|| {
+		let _ = client.flush_join_handle.get_or_init(|| {
 			task::new(
 				|| format!("client flush pid={} exe={}", &pid_printable, &exe_printable,),
 				{
 					let client = client.clone();
 					async move {
 						loop {
-							match messenger_tx.flush().await {
-								Err(e) => {
-									client.disconnect(Err(e.into()));
-								}
-								_ => (),
+							if let Err(e) = messenger_tx.flush().await {
+								client.disconnect(Err(e.into()));
 							}
 						}
 					}
 				},
 			)
+			.unwrap()
 		});
 
 		Ok(client)
@@ -189,18 +200,27 @@ impl Client {
 		let cwd_proc_path = format!("/proc/{pid}/cwd");
 		std::fs::read_link(cwd_proc_path).ok()
 	}
-	pub async fn save_state(&self) -> Option<ClientState> {
+	pub async fn save_state(&self) -> Option<ClientStateParsed> {
 		let internal = self.root.get()?.save_state().await.ok()?;
-		Some(ClientState::from_deserialized(self, internal))
+		Some(ClientStateParsed::from_deserialized(self, internal))
+	}
+
+	pub fn generate_id(&self) -> u64 {
+		self.id_counter.inc() as u64
 	}
 
 	#[inline]
-	pub fn get_node(&self, name: &'static str, path: &str) -> Result<Arc<Node>> {
+	pub fn get_node(&self, name: &'static str, id: u64) -> Result<Arc<Node>> {
 		self.scenegraph
-			.get_node(path)
+			.get_node(id)
 			.ok_or_else(|| eyre!("{} not found", name))
 	}
 
+	pub fn unresponsive(&self) -> bool {
+		let time_since_last_message = self.message_last_received.borrow().elapsed();
+		time_since_last_message.as_millis() > 500
+	}
+
 	pub fn disconnect(&self, reason: Result<()>) {
 		let _ = self.disconnect_status.set(reason);
 		if let Some(dispatch_join_handle) = self.dispatch_join_handle.get() {
@@ -209,7 +229,22 @@ impl Client {
 		if let Some(flush_join_handle) = self.flush_join_handle.get() {
 			flush_join_handle.abort();
 		}
-		CLIENTS.remove(self);
+		if let Some(client) = CLIENTS.remove(self) {
+			destroy_queue::add(client);
+		}
+	}
+}
+impl Debug for Client {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		f.debug_struct("Client")
+			.field("pid", &self.pid)
+			.field("exe", &self.exe)
+			.field("dispatch_join_handle", &self.dispatch_join_handle)
+			.field("flush_join_handle", &self.flush_join_handle)
+			.field("disconnect_status", &self.disconnect_status)
+			.field("base_resource_prefixes", &self.base_resource_prefixes)
+			.field("state", &self.state)
+			.finish()
 	}
 }
 impl Drop for Client {

src/core/client_state.rs

@@ -1,13 +1,17 @@
-use super::client::{get_env, Client};
-use crate::nodes::{spatial::Spatial, Node};
+use super::client::{Client, get_env};
+use crate::nodes::{Node, root::ClientState, spatial::Spatial};
 use glam::Mat4;
 use parking_lot::Mutex;
 use rustc_hash::FxHashMap;
 use serde::{Deserialize, Serialize};
-use std::{io::Write, path::PathBuf, sync::Arc};
+use std::{
+	path::{Path, PathBuf},
+	process::Command,
+	sync::Arc,
+};
 
 lazy_static::lazy_static! {
-	pub static ref CLIENT_STATES: Mutex<FxHashMap<String, Arc<ClientState>>> = Default::default();
+	pub static ref CLIENT_STATES: Mutex<FxHashMap<String, Arc<ClientStateParsed>>> = Default::default();
 }
 
 #[derive(Debug, Serialize, Deserialize)]
@@ -27,29 +31,28 @@ impl LaunchInfo {
 }
 
 #[derive(Debug, Serialize, Deserialize)]
-pub struct ClientState {
+pub struct ClientStateParsed {
 	pub launch_info: Option<LaunchInfo>,
-	pub data: Option<Vec<u8>>,
+	pub data: Vec<u8>,
 	pub root: Mat4,
 	pub spatial_anchors: FxHashMap<String, Mat4>,
 }
-impl ClientState {
-	pub fn from_deserialized(client: &Client, state: ClientStateInternal) -> Self {
-		ClientState {
+impl ClientStateParsed {
+	pub fn from_deserialized(client: &Client, state: ClientState) -> Self {
+		ClientStateParsed {
 			launch_info: LaunchInfo::from_client(client),
-			data: state.data,
-			root: Self::spatial_transform(client, &state.root.unwrap_or_default())
-				.unwrap_or_default(),
+			data: state.data.unwrap_or_default(),
+			root: Self::spatial_transform(client, state.root).unwrap_or_default(),
 			spatial_anchors: state
 				.spatial_anchors
 				.into_iter()
-				.filter_map(|(k, v)| Some((k, Self::spatial_transform(client, &v)?)))
+				.filter_map(|(k, v)| Some((k, Self::spatial_transform(client, v)?)))
 				.collect(),
 		}
 	}
-	fn spatial_transform(client: &Client, path: &str) -> Option<Mat4> {
-		let node = client.scenegraph.get_node(path)?;
-		let spatial = node.spatial.get()?;
+	fn spatial_transform(client: &Client, id: u64) -> Option<Mat4> {
+		let node = client.scenegraph.get_node(id)?;
+		let spatial = node.get_aspect::<Spatial>().ok()?;
 		Some(spatial.global_transform())
 	}
 
@@ -58,51 +61,59 @@ impl ClientState {
 		CLIENT_STATES.lock().insert(token.clone(), Arc::new(self));
 		token
 	}
-	pub fn to_file(self) {
-		let project_dirs = directories::ProjectDirs::from("", "", "stardust").unwrap();
-		let state_dir = project_dirs.state_dir().unwrap();
-		std::fs::create_dir_all(state_dir).unwrap();
-		let mut file = std::fs::File::create(state_dir.join(nanoid::nanoid!())).unwrap();
-		file.write_all(&stardust_xr::schemas::flex::flexbuffers::to_vec(self).unwrap())
-			.unwrap();
+	pub fn from_file(file: &Path) -> Option<Self> {
+		let file_string = std::fs::read_to_string(file).ok()?;
+		toml::from_str(&file_string).ok()
 	}
-	pub fn apply_to(&self, client: &Arc<Client>) -> ClientStateInternal {
+	pub fn to_file(&self, directory: &Path) {
+		let app_name = self
+			.launch_info
+			.as_ref()
+			.map(|l| l.cmdline.first().unwrap().split('/').next_back().unwrap())
+			.unwrap_or("unknown");
+		let state_file_path = directory
+			.join(format!("{app_name}-{}", nanoid::nanoid!()))
+			.with_extension("toml");
+
+		std::fs::write(state_file_path, toml::to_string(&self).unwrap()).unwrap();
+	}
+
+	pub fn apply_to(&self, client: &Arc<Client>) -> ClientState {
 		if let Some(root) = client.root.get() {
 			root.set_transform(self.root)
 		}
-		ClientStateInternal {
-			data: self.data.clone(),
-			root: Some("/".to_string()),
+		ClientState {
+			data: Some(self.data.clone()),
+			root: 0,
 			spatial_anchors: self
 				.spatial_anchors
 				.iter()
 				.map(|(k, v)| {
-					(k.clone(), {
-						let node = Node::create(client, "/spatial/anchor", k, true)
-							.add_to_scenegraph()
-							.unwrap();
-						Spatial::add_to(&node, None, *v, false).unwrap();
-						k.clone()
-					})
+					let node = Node::generate(client, true).add_to_scenegraph().unwrap();
+					Spatial::add_to(&node, None, *v, false);
+					(k.clone(), node.get_id())
 				})
 				.collect(),
 		}
 	}
+	pub fn launch_command(self) -> Option<Command> {
+		let launch_info = self.launch_info.as_ref()?;
+		let mut cmdline = launch_info.cmdline.iter();
+		let mut command = Command::new(cmdline.next()?);
+		command.args(cmdline);
+		command.current_dir(&launch_info.cwd);
+		command.envs(launch_info.env.iter());
+		command.env("STARDUST_STARTUP_TOKEN", self.token());
+		Some(command)
+	}
 }
-impl Default for ClientState {
+impl Default for ClientStateParsed {
 	fn default() -> Self {
 		Self {
 			launch_info: None,
-			data: None,
+			data: Default::default(),
 			root: Mat4::IDENTITY,
 			spatial_anchors: Default::default(),
 		}
 	}
 }
-
-#[derive(Default, Serialize, Deserialize)]
-pub struct ClientStateInternal {
-	data: Option<Vec<u8>>,
-	root: Option<String>,
-	spatial_anchors: FxHashMap<String, String>,
-}

src/core/destroy_queue.rs

@@ -1,12 +1,23 @@
 use parking_lot::Mutex;
-use std::any::Any;
+use std::{any::Any, sync::LazyLock};
+use tokio::sync::mpsc::{self, unbounded_channel};
 
-static MAIN_DESTROY_QUEUE: Mutex<Vec<Box<dyn Any + Send + Sync>>> = Mutex::new(Vec::new());
+type Anything = Box<dyn Any + Send + Sync>;
+
+static MAIN_DESTROY_QUEUE: LazyLock<(
+	mpsc::UnboundedSender<Anything>,
+	Mutex<mpsc::UnboundedReceiver<Anything>>,
+)> = LazyLock::new(|| {
+	let (tx, rx) = unbounded_channel();
+	(tx, Mutex::new(rx))
+});
 
 pub fn add<T: Any + Sync + Send>(thing: T) {
-	MAIN_DESTROY_QUEUE.lock().push(Box::new(thing));
+	MAIN_DESTROY_QUEUE.0.send(Box::new(thing)).unwrap();
 }
 
 pub fn clear() {
-	MAIN_DESTROY_QUEUE.lock().clear();
+	while let Ok(thing) = MAIN_DESTROY_QUEUE.1.lock().try_recv() {
+		drop(thing)
+	}
 }

src/core/error.rs

@@ -0,0 +1,75 @@
+use std::any::TypeId;
+
+use color_eyre::eyre::Report;
+use stardust_xr::{
+	messenger::MessengerError,
+	schemas::flex::{
+		FlexSerializeError,
+		flexbuffers::{DeserializationError, ReaderError},
+	},
+};
+use stereokit_rust::StereoKitError;
+use thiserror::Error;
+
+pub type Result<T, E = ServerError> = std::result::Result<T, E>;
+
+#[derive(Error, Debug)]
+pub enum ServerError {
+	#[error("Internal: Unable to get client")]
+	NoClient,
+	#[error("Messenger does not exist for this node")]
+	NoMessenger,
+	#[error("Messenger error: {0}")]
+	MessengerError(#[from] MessengerError),
+	#[error("Remote method error: {0}")]
+	RemoteMethodError(String),
+	#[error("Serialization error: {0}")]
+	SerializationError(#[from] FlexSerializeError),
+	#[error("Deserialization error: {0}")]
+	DeserializationError(#[from] DeserializationError),
+	#[error("Reader error: {0}")]
+	ReaderError(#[from] ReaderError),
+	#[error("StereoKit error: {0}")]
+	StereoKitError(#[from] StereoKitError),
+	#[error("Aspect {} does not exist for node", 0.to_string())]
+	NoAspect(TypeId),
+	#[error("{0}")]
+	Report(#[from] Report),
+}
+
+#[macro_export]
+macro_rules! bail {
+    ($msg:literal $(,)?) => {
+        return Err($crate::core::error::ServerError::from(color_eyre::eyre::eyre!($msg)));
+    };
+    ($err:expr $(,)?) => {
+        return Err($crate::core::error::ServerError::from(color_eyre::eyre::eyre!($err)));
+    };
+    ($fmt:expr, $($arg:tt)*) => {
+        return Err($crate::core::error::ServerError::from(color_eyre::eyre::eyre!($fmt, $($arg)*)));
+    };
+}
+
+#[macro_export]
+macro_rules! ensure {
+    ($cond:expr $(,)?) => {
+        if !$cond {
+            $crate::ensure!($cond, concat!("Condition failed: `", stringify!($cond), "`"))
+        }
+    };
+    ($cond:expr, $msg:literal $(,)?) => {
+        if !$cond {
+            return Err($crate::core::error::ServerError::from(color_eyre::eyre::eyre!($msg)));
+        }
+    };
+    ($cond:expr, $err:expr $(,)?) => {
+        if !$cond {
+            return Err($crate::core::error::ServerError::from(color_eyre::eyre::eyre!($err)));
+        }
+    };
+    ($cond:expr, $fmt:expr, $($arg:tt)*) => {
+        if !$cond {
+            return Err($crate::core::error::ServerError::from(color_eyre::eyre::eyre!($fmt, $($arg)*)));
+        }
+    };
+}

src/core/eventloop.rs

@@ -1,36 +0,0 @@
-use super::client::Client;
-use super::task;
-use color_eyre::eyre::Result;
-use std::path::PathBuf;
-use std::sync::Arc;
-use tokio::net::UnixListener;
-use tokio::task::JoinHandle;
-use tracing::error;
-
-pub struct EventLoop {
-	join_handle: JoinHandle<()>,
-}
-
-impl EventLoop {
-	pub fn new(socket_path: PathBuf) -> Result<Arc<Self>> {
-		let socket = UnixListener::bind(socket_path)?;
-
-		let join_handle = task::new(|| "event loop", async move {
-			loop {
-				let Ok((socket, _)) = socket.accept().await else { continue };
-				if let Err(e) = Client::from_connection(socket) {
-					error!(?e, "Unable to create client from connection");
-				}
-			}
-		})?;
-		let event_loop = Arc::new(EventLoop { join_handle });
-
-		Ok(event_loop)
-	}
-}
-
-impl Drop for EventLoop {
-	fn drop(&mut self) {
-		self.join_handle.abort();
-	}
-}

src/core/mod.rs

@@ -2,11 +2,8 @@ pub mod client;
 pub mod client_state;
 pub mod delta;
 pub mod destroy_queue;
-pub mod eventloop;
-pub mod node_collections;
+pub mod error;
 pub mod registry;
 pub mod resource;
 pub mod scenegraph;
 pub mod task;
-pub mod typed_datamap;
-pub mod buffers;

src/core/node_collections.rs

@@ -1,83 +0,0 @@
-use crate::nodes::Node;
-use parking_lot::Mutex;
-use rustc_hash::FxHashMap;
-use std::{
-	borrow::Borrow,
-	hash::Hash,
-	sync::{Arc, Weak},
-};
-
-// #[derive(Default)]
-// pub struct LifeLinkedNodeList {
-// 	nodes: Mutex<Vec<Weak<Node>>>,
-// }
-// impl LifeLinkedNodeList {
-// 	pub fn add(&self, node: Weak<Node>) {
-// 		self.nodes.lock().push(node);
-// 	}
-// 	pub fn clear(&self) {
-// 		self.nodes
-// 			.lock()
-// 			.iter()
-// 			.filter_map(|node| node.upgrade())
-// 			.for_each(|node| {
-// 				node.destroy();
-// 			});
-// 		self.nodes.lock().clear();
-// 	}
-// }
-// impl Drop for LifeLinkedNodeList {
-// 	fn drop(&mut self) {
-// 		self.clear();
-// 	}
-// }
-
-#[derive(Default, Debug)]
-pub struct LifeLinkedNodeMap<K: Hash + Eq> {
-	nodes: Mutex<FxHashMap<K, Weak<Node>>>,
-}
-#[allow(dead_code)]
-impl<K: Hash + Eq> LifeLinkedNodeMap<K> {
-	pub fn add(&self, key: K, node: &Arc<Node>) {
-		self.nodes.lock().insert(key, Arc::downgrade(node));
-	}
-	pub fn get<Q>(&self, key: &Q) -> Option<Arc<Node>>
-	where
-		Q: ?Sized,
-		K: Borrow<Q>,
-		Q: Hash + Eq,
-	{
-		self.nodes.lock().get(key).and_then(|n| n.upgrade())
-	}
-	pub fn nodes(&self) -> Vec<Arc<Node>> {
-		self.nodes
-			.lock()
-			.values()
-			.filter_map(|v| v.upgrade())
-			.collect()
-	}
-	pub fn remove<Q>(&self, key: &Q) -> Option<Arc<Node>>
-	where
-		Q: ?Sized,
-		K: Borrow<Q>,
-		Q: Hash + Eq,
-	{
-		self.nodes.lock().remove(key).and_then(|n| n.upgrade())
-	}
-
-	pub fn clear(&self) {
-		let mut nodes = self.nodes.lock();
-		nodes
-			.values()
-			.filter_map(|node| node.upgrade())
-			.for_each(|node| {
-				node.destroy();
-			});
-		nodes.clear();
-	}
-}
-impl<K: Hash + Eq> Drop for LifeLinkedNodeMap<K> {
-	fn drop(&mut self) {
-		self.clear();
-	}
-}

src/core/registry.rs

@@ -1,20 +1,18 @@
 #![allow(dead_code)]
 
-use parking_lot::{const_mutex, MappedMutexGuard, Mutex, MutexGuard};
+use dashmap::DashMap;
+use parking_lot::{MappedMutexGuard, Mutex, MutexGuard, const_mutex};
 use rustc_hash::FxHashMap;
+use std::ops::Deref;
 use std::ptr;
-use std::sync::{Arc, Weak};
+use std::sync::{Arc, LazyLock, Weak};
 
-pub struct Registry<T: Send + Sync + ?Sized>(Mutex<Option<FxHashMap<usize, Weak<T>>>>);
+#[derive(Debug)]
+pub struct Registry<T: Send + Sync + ?Sized>(MaybeLazy<DashMap<usize, Weak<T>>>);
 
 impl<T: Send + Sync + ?Sized> Registry<T> {
 	pub const fn new() -> Self {
-		Registry(const_mutex(None))
-	}
-	fn lock(&self) -> MappedMutexGuard<FxHashMap<usize, Weak<T>>> {
-		MutexGuard::map(self.0.lock(), |r| {
-			r.get_or_insert_with(|| FxHashMap::default())
-		})
+		Registry(MaybeLazy::Lazy(LazyLock::new(DashMap::default)))
 	}
 	pub fn add(&self, t: T) -> Arc<T>
 	where
@@ -25,47 +23,117 @@ impl<T: Send + Sync + ?Sized> Registry<T> {
 		t_arc
 	}
 	pub fn add_raw(&self, t: &Arc<T>) {
-		self.lock()
+		self.0
 			.insert(Arc::as_ptr(t) as *const () as usize, Arc::downgrade(t));
 	}
 	pub fn contains(&self, t: &T) -> bool {
-		self.lock()
+		self.0
 			.contains_key(&(ptr::addr_of!(*t) as *const () as usize))
 	}
+	pub fn get_changes(old: &Registry<T>, new: &Registry<T>) -> (Vec<Arc<T>>, Vec<Arc<T>>) {
+		let mut added = Vec::new();
+		let mut removed = Vec::new();
+
+		for pair in new.0.iter() {
+			let (id, entry) = pair.pair();
+			if let Some(entry) = entry.upgrade() {
+				if !old.0.contains_key(id) {
+					added.push(entry);
+				}
+			}
+		}
+		for pair in old.0.iter() {
+			let (id, entry) = pair.pair();
+			if let Some(entry) = entry.upgrade() {
+				if !new.0.contains_key(id) {
+					removed.push(entry);
+				}
+			}
+		}
+		(added, removed)
+	}
 	pub fn get_valid_contents(&self) -> Vec<Arc<T>> {
-		self.lock()
+		self.0
 			.iter()
-			.filter_map(|pair| pair.1.upgrade())
+			.filter_map(|pair| pair.value().upgrade())
 			.collect()
 	}
+	pub fn set(&self, other: &Registry<T>) {
+		self.clear();
+		for (key, value) in other.0.deref().clone().into_iter() {
+			self.0.insert(key, value);
+		}
+	}
 	pub fn take_valid_contents(&self) -> Vec<Arc<T>> {
-		self.0
-			.lock()
-			.take()
-			.unwrap_or_default()
-			.into_iter()
-			.filter_map(|pair| pair.1.upgrade())
-			.collect()
+		let contents = self.get_valid_contents();
+		self.0.clear();
+		contents
+	}
+	pub fn retain<F: Fn(&Arc<T>) -> bool>(&self, f: F) {
+		self.0.retain(|_, v| {
+			let Some(v) = v.upgrade() else {
+				// why would we want to retain things we can't upgrade?
+				return true;
+			};
+			(f)(&v)
+		})
 	}
 	pub fn remove(&self, t: &T) {
-		self.lock()
-			.remove(&(ptr::addr_of!(*t) as *const () as usize));
+		self.0.remove(&(ptr::addr_of!(*t) as *const () as usize));
 	}
 	pub fn clear(&self) {
-		self.lock().clear();
+		self.0.clear();
 	}
 	pub fn is_empty(&self) -> bool {
-		let registry = self.0.lock();
-		let Some(registry) = &*registry else {return true};
-		if registry.is_empty() {
+		if self.0.is_empty() {
 			return true;
 		}
-		registry.values().all(|v| v.strong_count() == 0)
+		self.0.iter().all(|v| v.value().strong_count() == 0)
 	}
 }
+
 impl<T: Send + Sync + ?Sized> Clone for Registry<T> {
 	fn clone(&self) -> Self {
-		Self(Mutex::new(self.0.lock().clone()))
+		Self(self.0.clone())
+	}
+}
+impl<T: Send + Sync + ?Sized> Default for Registry<T> {
+	fn default() -> Self {
+		Self::new()
+	}
+}
+
+impl<T: Send + Sync + Sized> FromIterator<Arc<T>> for Registry<T> {
+	fn from_iter<I: IntoIterator<Item = Arc<T>>>(iter: I) -> Self {
+		Registry(MaybeLazy::NonLazy(
+			iter.into_iter()
+				.map(|i| (Arc::as_ptr(&i) as usize, Arc::downgrade(&i)))
+				.collect(),
+		))
+	}
+}
+
+#[derive(Debug)]
+enum MaybeLazy<T> {
+	Lazy(LazyLock<T>),
+	NonLazy(T),
+}
+impl<T: Clone> Clone for MaybeLazy<T> {
+	fn clone(&self) -> Self {
+		match self {
+			MaybeLazy::Lazy(lazy_lock) => Self::NonLazy(lazy_lock.deref().clone()),
+			MaybeLazy::NonLazy(v) => Self::NonLazy(v.clone()),
+		}
+	}
+}
+impl<T> Deref for MaybeLazy<T> {
+	type Target = T;
+
+	fn deref(&self) -> &Self::Target {
+		match self {
+			MaybeLazy::Lazy(lazy_lock) => lazy_lock,
+			MaybeLazy::NonLazy(v) => v,
+		}
 	}
 }
 
@@ -76,9 +144,7 @@ impl<T: Send + Sync + ?Sized> OwnedRegistry<T> {
 		OwnedRegistry(const_mutex(None))
 	}
 	fn lock(&self) -> MappedMutexGuard<FxHashMap<usize, Arc<T>>> {
-		MutexGuard::map(self.0.lock(), |r| {
-			r.get_or_insert_with(|| FxHashMap::default())
-		})
+		MutexGuard::map(self.0.lock(), |r| r.get_or_insert_with(FxHashMap::default))
 	}
 	pub fn add(&self, t: T) -> Arc<T>
 	where
@@ -98,9 +164,12 @@ impl<T: Send + Sync + ?Sized> OwnedRegistry<T> {
 		self.lock()
 			.contains_key(&(ptr::addr_of!(*t) as *const () as usize))
 	}
-	pub fn remove(&self, t: &T) {
+	pub fn remove(&self, t: &T) -> Option<Arc<T>>
+	where
+		T: Sized,
+	{
 		self.lock()
-			.remove(&(ptr::addr_of!(*t) as *const () as usize));
+			.remove(&(ptr::addr_of!(*t) as *const () as usize))
 	}
 	pub fn clear(&self) {
 		self.lock().clear();

src/core/resource.rs

@@ -1,83 +1,49 @@
-use color_eyre::eyre::eyre;
-use serde::{de::Visitor, Deserialize};
-use std::{ffi::OsStr, path::PathBuf};
+use stardust_xr::values::ResourceID;
+use std::{
+	ffi::OsStr,
+	path::{Path, PathBuf},
+};
 
-#[derive(Debug)]
-pub enum ResourceID {
-	File(PathBuf),
-	Namespaced { namespace: String, path: PathBuf },
+use super::client::Client;
+
+lazy_static::lazy_static! {
+	static ref THEMES: Vec<PathBuf> = std::env::var("STARDUST_THEMES").map(|s| s.split(':').map(PathBuf::from).collect()).unwrap_or_default();
 }
-impl ResourceID {
-	pub fn get_file(&self, prefixes: &[PathBuf], extensions: &[&OsStr]) -> Option<PathBuf> {
-		match self {
-			ResourceID::File(file) => (file.is_absolute()
-				&& file.exists() && Self::has_extension(file, extensions))
-			.then_some(file.clone()),
-			ResourceID::Namespaced { namespace, path } => {
-				let file_name = path.file_name()?;
-				prefixes
-					.iter()
-					.filter_map(|prefix| {
-						let prefixed_path = prefix.clone().join(namespace).join(path);
-						let parent = prefixed_path.parent()?;
-						std::fs::read_dir(parent).ok()
-					})
-					.flatten()
-					.filter_map(|item| item.ok())
-					.map(|dir_entry| dir_entry.path())
-					.filter(|path| path.file_stem() == Some(file_name))
-					.find(|path| Self::has_extension(path, extensions))
-			}
-		}
-	}
 
-	fn has_extension(path: &PathBuf, extensions: &[&OsStr]) -> bool {
-		if let Some(path_extension) = path.extension() {
-			extensions.contains(&path_extension)
-		} else {
-			false
+fn has_extension(path: &Path, extensions: &[&OsStr]) -> bool {
+	if let Some(path_extension) = path.extension() {
+		extensions.contains(&path_extension)
+	} else {
+		false
+	}
+}
+
+pub fn get_resource_file(
+	resource: &ResourceID,
+	client: &Client,
+	extensions: &[&OsStr],
+) -> Option<PathBuf> {
+	match resource {
+		ResourceID::Direct(file) => {
+			(file.is_absolute() && file.exists() && has_extension(file, extensions))
+				.then_some(file.clone())
+		}
+		ResourceID::Namespaced { namespace, path } => {
+			let file_name = path.file_name()?;
+			let base_prefixes = client.base_resource_prefixes.lock().clone();
+			THEMES
+				.iter()
+				.chain(base_prefixes.iter())
+				.filter_map(|prefix| {
+					let prefixed_path = prefix.clone().join(namespace).join(path);
+					let parent = prefixed_path.parent()?;
+					std::fs::read_dir(parent).ok()
+				})
+				.flatten()
+				.filter_map(|item| item.ok())
+				.map(|dir_entry| dir_entry.path())
+				.filter(|path| path.file_stem() == Some(file_name))
+				.find(|path| has_extension(path, extensions))
 		}
 	}
 }
-impl<'de> Deserialize<'de> for ResourceID {
-	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-	where
-		D: serde::Deserializer<'de>,
-	{
-		deserializer.deserialize_any(ResourceVisitor)
-	}
-}
-
-struct ResourceVisitor;
-impl<'de> Visitor<'de> for ResourceVisitor {
-	type Value = ResourceID;
-
-	fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
-		formatter.write_str("A string containing an absolute path to file or \"[namespace]:[path]\" for a namespaced resource")
-	}
-
-	fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
-	where
-		E: serde::de::Error,
-	{
-		Ok(if v.starts_with('/') {
-			let path = PathBuf::from(v);
-			path.metadata().map_err(serde::de::Error::custom)?;
-			ResourceID::File(path)
-		} else if let Some((namespace, path)) = v.split_once(':') {
-			ResourceID::Namespaced {
-				namespace: namespace.to_string(),
-				path: PathBuf::from(path),
-			}
-		} else {
-			return Err(serde::de::Error::custom(eyre!("Invalid format for string")));
-		})
-	}
-
-	fn visit_string<E>(self, v: String) -> Result<Self::Value, E>
-	where
-		E: serde::de::Error,
-	{
-		self.visit_str(&v)
-	}
-}

src/core/scenegraph.rs

@@ -1,21 +1,23 @@
+use crate::core::error::Result;
 use crate::nodes::Node;
+use crate::nodes::alias::get_original;
 use crate::{core::client::Client, nodes::Message};
-use color_eyre::eyre::Result;
-use once_cell::sync::OnceCell;
 use parking_lot::Mutex;
-use portable_atomic::Ordering;
 use rustc_hash::FxHashMap;
+use serde::Serialize;
 use stardust_xr::scenegraph;
 use stardust_xr::scenegraph::ScenegraphError;
+use stardust_xr::schemas::flex::serialize;
+use std::future::Future;
 use std::os::fd::OwnedFd;
-use std::sync::{Arc, Weak};
+use std::sync::{Arc, OnceLock, Weak};
 use tokio::sync::oneshot;
 use tracing::{debug, debug_span};
 
 #[derive(Default)]
 pub struct Scenegraph {
-	pub(super) client: OnceCell<Weak<Client>>,
-	nodes: Mutex<FxHashMap<String, Arc<Node>>>,
+	pub(super) client: OnceLock<Weak<Client>>,
+	nodes: Mutex<FxHashMap<u64, Arc<Node>>>,
 }
 
 impl Scenegraph {
@@ -30,55 +32,74 @@ impl Scenegraph {
 	}
 	pub fn add_node_raw(&self, node: Arc<Node>) {
 		debug!(node = ?&*node, "Add node");
-		let path = node.get_path().to_string();
-		self.nodes.lock().insert(path, node);
+		self.nodes.lock().insert(node.get_id(), node);
 	}
 
-	pub fn get_node(&self, path: &str) -> Option<Arc<Node>> {
-		let mut node = self.nodes.lock().get(path)?.clone();
-		while let Some(alias) = node.alias.get() {
-			if alias.enabled.load(Ordering::Relaxed) {
-				node = alias.original.upgrade()?;
-			} else {
-				return None;
-			}
-		}
-		Some(node)
+	pub fn get_node(&self, node: u64) -> Option<Arc<Node>> {
+		let node = self.nodes.lock().get(&node)?.clone();
+		get_original(node, true)
 	}
 
-	pub fn remove_node(&self, path: &str) -> Option<Arc<Node>> {
-		debug!(path, "Remove node");
-		self.nodes.lock().remove(path)
+	pub fn remove_node(&self, node: u64) -> Option<Arc<Node>> {
+		debug!(node, "Remove node");
+		self.nodes.lock().remove(&node)
 	}
 }
 
-pub struct MethodResponseSender(oneshot::Sender<Result<(Vec<u8>, Vec<OwnedFd>), ScenegraphError>>);
+pub type MethodResponse = Result<(Vec<u8>, Vec<OwnedFd>), ScenegraphError>;
+pub struct MethodResponseSender(oneshot::Sender<MethodResponse>);
 impl MethodResponseSender {
 	pub fn send(self, t: Result<Message, ScenegraphError>) {
 		let _ = self.0.send(t.map(|m| (m.data, m.fds)));
 	}
-	pub fn wrap_sync<F: FnOnce() -> color_eyre::eyre::Result<Message>>(self, f: F) {
-		self.send(f().map_err(|e| ScenegraphError::MethodError {
+	// pub fn send_method_return<T: Serialize>(
+	// 	self,
+	// 	result: color_eyre::eyre::Result<(T, Vec<OwnedFd>)>,
+	// ) {
+	// 	let _ = self.0.send(map_method_return(result));
+	// }
+	pub fn wrap_sync<F: FnOnce() -> crate::core::error::Result<Message>>(self, f: F) {
+		self.send(f().map_err(|e| ScenegraphError::MemberError {
 			error: e.to_string(),
 		}))
 	}
+	pub fn wrap_async<T: Serialize>(
+		self,
+		f: impl Future<Output = Result<(T, Vec<OwnedFd>)>> + Send + 'static,
+	) {
+		tokio::task::spawn(async move { self.0.send(map_method_return(f.await)) });
+	}
+}
+fn map_method_return<T: Serialize>(
+	result: Result<(T, Vec<OwnedFd>)>,
+) -> Result<(Vec<u8>, Vec<OwnedFd>), ScenegraphError> {
+	let (value, fds) = result.map_err(|e| ScenegraphError::MemberError {
+		error: e.to_string(),
+	})?;
+
+	let serialized_value = serialize(value).map_err(|e| ScenegraphError::MemberError {
+		error: format!("Internal: Serialization failed: {e}"),
+	})?;
+	Ok((serialized_value, fds))
 }
 impl scenegraph::Scenegraph for Scenegraph {
 	fn send_signal(
 		&self,
-		path: &str,
-		method: &str,
+		node_id: u64,
+		aspect_id: u64,
+		method: u64,
 		data: &[u8],
 		fds: Vec<OwnedFd>,
 	) -> Result<(), ScenegraphError> {
 		let Some(client) = self.get_client() else {
-			return Err(ScenegraphError::SignalNotFound);
+			return Err(ScenegraphError::NodeNotFound);
 		};
-		debug_span!("Handle signal", path, method).in_scope(|| {
-			self.get_node(path)
+		debug_span!("Handle signal", aspect_id, node_id, method).in_scope(|| {
+			self.get_node(node_id)
 				.ok_or(ScenegraphError::NodeNotFound)?
 				.send_local_signal(
 					client,
+					aspect_id,
 					method,
 					Message {
 						data: data.to_vec(),
@@ -89,23 +110,25 @@ impl scenegraph::Scenegraph for Scenegraph {
 	}
 	fn execute_method(
 		&self,
-		path: &str,
-		method: &str,
+		node_id: u64,
+		aspect_id: u64,
+		method: u64,
 		data: &[u8],
 		fds: Vec<OwnedFd>,
 		response: oneshot::Sender<Result<(Vec<u8>, Vec<OwnedFd>), ScenegraphError>>,
 	) {
 		let Some(client) = self.get_client() else {
-			let _ = response.send(Err(ScenegraphError::MethodNotFound));
+			let _ = response.send(Err(ScenegraphError::NodeNotFound));
 			return;
 		};
-		debug!(path, method, "Handle method");
-		let Some(node) = self.get_node(path) else {
+		debug!(aspect_id, node_id, method, "Handle method");
+		let Some(node) = self.get_node(node_id) else {
 			let _ = response.send(Err(ScenegraphError::NodeNotFound));
 			return;
 		};
 		node.execute_local_method(
 			client,
+			aspect_id,
 			method,
 			Message {
 				data: data.to_vec(),

src/core/typed_datamap.rs

@@ -1,56 +0,0 @@
-#![allow(unused)]
-
-use std::ops::{Deref, DerefMut};
-
-use color_eyre::eyre::Result;
-use once_cell::sync::Lazy;
-use serde::{de::DeserializeOwned, Serialize};
-use stardust_xr::schemas::{
-	flat::Datamap,
-	flex::flexbuffers::{FlexbufferSerializer, Reader, ReaderError},
-};
-
-use crate::nodes::Message;
-
-pub struct TypedDatamap<T: DeserializeOwned + Serialize>(T);
-impl<T: DeserializeOwned + Serialize> TypedDatamap<T> {
-	pub fn new(data: T) -> Self {
-		TypedDatamap(data)
-	}
-	pub fn from_flex(message: Message) -> Result<Self> {
-		let root = Reader::get_root(message.as_ref())?;
-		T::deserialize(root).map(Self::new).map_err(|e| e.into())
-	}
-	pub fn to_datamap(&mut self) -> Result<Datamap> {
-		let mut serializer = FlexbufferSerializer::default();
-		self.0.serialize(&mut serializer)?;
-		Datamap::new(serializer.take_buffer()).map_err(|e| e.into())
-	}
-	pub fn serialize(&mut self) -> Option<Vec<u8>> {
-		let mut serializer = FlexbufferSerializer::default();
-		self.0.serialize(&mut serializer).ok()?;
-		// check if this is actually a map
-		Reader::get_root(serializer.view()).ok()?.get_map().ok()?;
-		Some(serializer.take_buffer())
-	}
-}
-impl<T: DeserializeOwned + Serialize> Default for TypedDatamap<T>
-where
-	T: Default,
-{
-	fn default() -> Self {
-		Self(T::default())
-	}
-}
-impl<T: DeserializeOwned + Serialize> Deref for TypedDatamap<T> {
-	type Target = T;
-
-	fn deref(&self) -> &Self::Target {
-		&self.0
-	}
-}
-impl<T: DeserializeOwned + Serialize> DerefMut for TypedDatamap<T> {
-	fn deref_mut(&mut self) -> &mut Self::Target {
-		&mut self.0
-	}
-}

src/main.rs

@@ -1,84 +1,92 @@
+#![allow(clippy::empty_docs)]
 mod core;
 mod nodes;
 mod objects;
+mod session;
 #[cfg(feature = "wayland")]
 mod wayland;
 
-use crate::core::client::CLIENTS;
-use crate::core::client_state::ClientState;
-use crate::core::{destroy_queue, buffers};
+use crate::core::destroy_queue;
 use crate::nodes::items::camera;
-use crate::nodes::{audio, drawable, hmd, input};
-use crate::objects::input::eye_pointer::EyePointer;
-use crate::objects::input::mouse_pointer::MousePointer;
-use crate::objects::input::sk_controller::SkController;
-use crate::objects::input::sk_hand::SkHand;
-use crate::objects::play_space::PlaySpace;
+use crate::nodes::{audio, drawable, input};
 
-use self::core::eventloop::EventLoop;
 use clap::Parser;
+use core::client::{Client, tick_internal_client};
+use core::task;
 use directories::ProjectDirs;
-use once_cell::sync::OnceCell;
-use smithay::reexports::nix;
+use objects::ServerObjects;
+use session::{launch_start, save_session};
+use stardust_xr::schemas::dbus::object_registry::ObjectRegistry;
 use stardust_xr::server;
-use std::os::unix::process::CommandExt;
 use std::path::PathBuf;
-use std::process::{Command, Stdio};
-use std::sync::Arc;
+use std::sync::{Arc, OnceLock};
 use std::time::Duration;
-use stereokit::{
-	named_colors::BLACK, DepthMode, DisplayMode, Handed, LogLevel, StereoKitMultiThread,
-	TextureFormat, TextureType,
+use stereokit_rust::material::Material;
+use stereokit_rust::shader::Shader;
+use stereokit_rust::sk::{
+	AppMode, DepthMode, DisplayBlend, OriginMode, QuitReason, SkSettings, sk_quit,
 };
-use stereokit::{DisplayBlend, Sk};
+use stereokit_rust::system::{Handed, Input, LogLevel, Renderer};
+use stereokit_rust::tex::{SHCubemap, Tex, TexFormat, TexType};
+use stereokit_rust::ui::Ui;
+use stereokit_rust::util::{Color128, SphericalHarmonics, Time};
+use tokio::net::UnixListener;
 use tokio::sync::Notify;
-use tokio::task::LocalSet;
-use tokio::{runtime::Handle, sync::oneshot};
 use tracing::metadata::LevelFilter;
 use tracing::{debug_span, error, info};
-use tracing_subscriber::{fmt, prelude::*, EnvFilter};
+use tracing_subscriber::{EnvFilter, fmt, prelude::*};
+use zbus::Connection;
+use zbus::fdo::ObjectManager;
 
-#[derive(Parser)]
+#[derive(Debug, Clone, Parser)]
 #[clap(author, version, about, long_about = None)]
 struct CliArgs {
 	/// Force flatscreen mode and use the mouse pointer as a 3D pointer
 	#[clap(short, long, action)]
 	flatscreen: bool,
 
+	/// If monado insists on emulating them, set this flag...we want the raw input
+	#[clap(long)]
+	disable_controllers: bool,
+	/// If monado insists on emulating , set this flag...we want the raw input
+	#[clap(long)]
+	disable_hands: bool,
+
 	/// Run Stardust XR as an overlay with given priority
 	#[clap(id = "PRIORITY", short = 'o', long = "overlay", action)]
 	overlay_priority: Option<u32>,
 
-	/// Don't create a tip input for controller because SOME RUNTIMES will lie
-	#[clap(long, action)]
-	disable_controller: bool,
+	/// Debug the clients started by the server
+	#[clap(short = 'd', long = "debug", action)]
+	debug_launched_clients: bool,
 
 	/// Run a script when ready for clients to connect. If this is not set the script at $HOME/.config/stardust/startup will be ran if it exists.
 	#[clap(id = "PATH", short = 'e', long = "execute-startup-script", action)]
 	startup_script: Option<PathBuf>,
+
+	/// Restore the session with the given ID (or `latest`), ignoring the startup script. Sessions are stored in directories at `~/.local/state/stardust/`.
+	#[clap(id = "SESSION_ID", long = "restore", action)]
+	restore: Option<String>,
+	/// this should fix nvidia issues, it'll only help on driver 565+
+	/// and only if running under wayland, probably
+	#[clap(long)]
+	nvidia: bool,
 }
 
-static STARDUST_INSTANCE: OnceCell<String> = OnceCell::new();
-static SK_MULTITHREAD: OnceCell<Sk> = OnceCell::new();
-static STOP_NOTIFIER: Notify = Notify::const_new();
+static STARDUST_INSTANCE: OnceLock<String> = OnceLock::new();
 
-struct EventLoopInfo {
-	tokio_handle: Handle,
-	socket_path: PathBuf,
-}
-
-fn main() {
-	ctrlc::set_handler(|| {
-		if atty::isnt(atty::Stream::Stdout) {
-			STOP_NOTIFIER.notify_waiters()
-		}
-	})
-	.unwrap();
+// #[tokio::main(flavor = "current_thread")]
+#[tokio::main]
+async fn main() {
+	color_eyre::install().unwrap();
 
 	let registry = tracing_subscriber::registry();
 
 	#[cfg(feature = "profile_app")]
-	let registry = registry.with(tracing_tracy::TracyLayer::new().with_filter(LevelFilter::DEBUG));
+	let registry = registry.with(
+		tracing_tracy::TracyLayer::new(tracing_tracy::DefaultConfig::default())
+			.with_filter(LevelFilter::DEBUG),
+	);
 
 	#[cfg(feature = "profile_tokio")]
 	let (console_layer, _) = console_subscriber::ConsoleLayer::builder().build();
@@ -89,25 +97,135 @@ fn main() {
 		.with_thread_names(true)
 		.with_ansi(true)
 		.with_line_number(true)
-		.with_filter(EnvFilter::from_default_env());
+		.with_filter(
+			EnvFilter::builder()
+				.with_default_directive(LevelFilter::WARN.into())
+				.from_env_lossy(),
+		);
 	registry.with(log_layer).init();
 
+	let cli_args = CliArgs::parse();
+
+	if cli_args.nvidia && !cli_args.flatscreen {
+		// Only call this while singlethreaded since it can/will cause raceconditions with other
+		// functions reading or writing from the env
+		unsafe {
+			std::env::set_var("__GLX_VENDOR_LIBRARY_NAME", "mesa");
+			std::env::set_var(
+				"__EGL_VENDOR_LIBRARY_FILENAMES",
+				"/usr/share/glvnd/egl_vendor.d/50_mesa.json",
+			);
+			std::env::set_var("MESA_LOADER_DRIVER_OVERRIDE", "zink");
+			std::env::set_var("GALLIUM_DRIVER", "zink");
+		}
+	}
+
+	let socket_path =
+		server::get_free_socket_path().expect("Unable to find a free stardust socket path");
+	STARDUST_INSTANCE.set(socket_path.file_name().unwrap().to_string_lossy().into_owned()).expect("Someone hasn't done their job, yell at Nova because how is this set multiple times what the hell");
+	info!(
+		socket_path = ?socket_path.display(),
+		"Stardust socket created"
+	);
+	let socket =
+		UnixListener::bind(socket_path).expect("Couldn't spawn stardust server at {socket_path}");
+	task::new(|| "client join loop", async move {
+		loop {
+			let Ok((stream, _)) = socket.accept().await else {
+				continue;
+			};
+			if let Err(e) = Client::from_connection(stream) {
+				error!(?e, "Unable to create client from connection");
+			}
+		}
+	})
+	.unwrap();
+	info!("Init client join loop");
+
 	let project_dirs = ProjectDirs::from("", "", "stardust");
 	if project_dirs.is_none() {
-		error!("Unable to get Stardust project directories, default skybox and startup script will not work.");
+		error!(
+			"Unable to get Stardust project directories, default skybox and startup script will not work."
+		);
 	}
-	let cli_args = Arc::new(CliArgs::parse());
 
-	let sk = stereokit::Settings {
-		app_name: "Stardust XR".to_string(),
-		display_preference: if cli_args.flatscreen {
-			DisplayMode::Flatscreen
+	let dbus_connection = Connection::session()
+		.await
+		.expect("Could not open dbus session");
+	dbus_connection
+		.request_name("org.stardustxr.HMD")
+		.await
+		.expect(
+			"Another instance of the server is running. This is not supported currently (but is planned).",
+		);
+
+	dbus_connection
+		.object_server()
+		.at("/", ObjectManager)
+		.await
+		.expect("Couldn't add the object manager");
+
+	let object_registry = ObjectRegistry::new(&dbus_connection).await.expect(
+		"Couldn't make the object registry to find all objects with given interfaces in d-bus",
+	);
+
+	let sk_ready_notifier = Arc::new(Notify::new());
+	let stereokit_loop = tokio::task::spawn_blocking({
+		let sk_ready_notifier = sk_ready_notifier.clone();
+		let project_dirs = project_dirs.clone();
+		let cli_args = cli_args.clone();
+		let dbus_connection = dbus_connection.clone();
+		move || {
+			stereokit_loop(
+				sk_ready_notifier,
+				project_dirs,
+				cli_args,
+				dbus_connection,
+				object_registry,
+			)
+		}
+	});
+	sk_ready_notifier.notified().await;
+	let mut startup_children = project_dirs
+		.as_ref()
+		.map(|project_dirs| launch_start(&cli_args, project_dirs))
+		.unwrap_or_default();
+
+	tokio::select! {
+		_ = stereokit_loop => (),
+		_ = tokio::signal::ctrl_c() => unsafe {sk_quit(QuitReason::SystemClose)},
+	}
+	info!("Stopping...");
+	if let Some(project_dirs) = project_dirs {
+		save_session(&project_dirs).await;
+	}
+	for mut startup_child in startup_children.drain(..) {
+		let _ = startup_child.kill();
+	}
+
+	info!("Cleanly shut down Stardust");
+}
+
+static DEFAULT_SKYTEX: OnceLock<Tex> = OnceLock::new();
+static DEFAULT_SKYLIGHT: OnceLock<SphericalHarmonics> = OnceLock::new();
+
+fn stereokit_loop(
+	sk_ready_notifier: Arc<Notify>,
+	project_dirs: Option<ProjectDirs>,
+	args: CliArgs,
+	dbus_connection: Connection,
+	object_registry: ObjectRegistry,
+) {
+	let sk = SkSettings::default()
+		.app_name("Stardust XR")
+		.blend_preference(DisplayBlend::AnyTransparent)
+		.mode(if args.flatscreen {
+			AppMode::Simulator
 		} else {
-			DisplayMode::MixedReality
-		},
-		blend_preference: DisplayBlend::AnyTransparent,
-		depth_mode: DepthMode::D32,
-		log_filter: match EnvFilter::from_default_env().max_level_hint() {
+			AppMode::XR
+		})
+		.depth_mode(DepthMode::D32)
+		.log_filter(match EnvFilter::from_default_env().max_level_hint() {
 			Some(LevelFilter::ERROR) => LogLevel::Error,
 			Some(LevelFilter::WARN) => LogLevel::Warning,
 			Some(LevelFilter::INFO) => LogLevel::Inform,
@@ -115,223 +233,100 @@ fn main() {
 			Some(LevelFilter::TRACE) => LogLevel::Diagnostic,
 			Some(LevelFilter::OFF) => LogLevel::None,
 			None => LogLevel::Warning,
-		},
-		overlay_app: cli_args.overlay_priority.is_some(),
-		overlay_priority: cli_args.overlay_priority.unwrap_or(u32::MAX),
-		disable_desktop_input_window: true,
-		..Default::default()
-	}
-	.init()
-	.expect("StereoKit failed to initialize");
-	let _ = SK_MULTITHREAD.set(sk.multithreaded());
+		})
+		.overlay_app(args.overlay_priority.is_some())
+		.overlay_priority(args.overlay_priority.unwrap_or(u32::MAX))
+		.disable_desktop_input_window(true)
+		.origin(OriginMode::Local)
+		.init()
+		.expect("StereoKit failed to initialize");
 	info!("Init StereoKit");
 
-	sk.material_set_shader(
-		sk.material_find("default/material_pbr").unwrap(),
-		sk.shader_find("default/shader_pbr_clip").unwrap(),
-	);
+	Renderer::multisample(0);
+	Material::default().shader(Shader::pbr_clip());
+	Ui::enable_far_interact(false);
+
+	let left_hand_material = Material::find("default/material_hand").unwrap();
+	let mut right_hand_material = left_hand_material.copy();
+	right_hand_material.id("right_hand");
+	Input::hand_material(Handed::Right, Some(Material::find("right_hand").unwrap()));
+
+	Input::hand_visible(Handed::Left, false);
+	Input::hand_visible(Handed::Right, false);
 
 	// Skytex/light stuff
 	{
-		if let Some((light, tex)) = project_dirs
+		let _ = DEFAULT_SKYTEX.set(Tex::gen_color(
+			Color128::BLACK,
+			1,
+			1,
+			TexType::Cubemap,
+			TexFormat::RGBA32,
+		));
+		let _ = DEFAULT_SKYLIGHT.set(Renderer::get_skylight());
+		if let Some(sky) = project_dirs
 			.as_ref()
-			.and_then(|dirs| {
-				let skytex_path = dirs.config_dir().join("skytex.hdr");
-				skytex_path
-					.exists()
-					.then(|| sk.tex_create_cubemap_file(&skytex_path, true, 100).ok())
-			})
-			.flatten()
+			.map(|dirs| dirs.config_dir().join("skytex.hdr"))
+			.filter(|f| f.exists())
+			.and_then(|p| SHCubemap::from_cubemap(p, true, 100).ok())
 		{
-			sk.render_set_skytex(&tex);
-			sk.render_set_skylight(light);
+			sky.render_as_sky();
 		} else {
-			sk.render_set_skytex(sk.tex_gen_color(
-				BLACK,
-				1,
-				1,
-				TextureType::CUBEMAP,
-				TextureFormat::RGBA32,
-			));
+			Renderer::skytex(DEFAULT_SKYTEX.get().unwrap());
 		}
 	}
 
-	let mut mouse_pointer = cli_args
-		.flatscreen
-		.then(MousePointer::new)
-		.transpose()
-		.unwrap();
-	let mut hands = (!cli_args.flatscreen)
-		.then(|| {
-			let left = SkHand::new(Handed::Left).ok();
-			let right = SkHand::new(Handed::Right).ok();
-			left.zip(right)
-		})
-		.flatten();
-	let mut controllers = (!cli_args.flatscreen && !cli_args.disable_controller)
-		.then(|| {
-			let left = SkController::new(&sk, Handed::Left).ok();
-			let right = SkController::new(&sk, Handed::Right).ok();
-			left.zip(right)
-		})
-		.flatten();
-	let eye_pointer = (sk.active_display_mode() == DisplayMode::MixedReality
-		&& sk.device_has_eye_gaze())
-	.then(EyePointer::new)
-	.transpose()
-	.unwrap();
-
-	if hands.is_none() {
-		sk.input_hand_visible(Handed::Left, false);
-		sk.input_hand_visible(Handed::Right, false);
-	}
-
-	let play_space = sk
-		.world_has_bounds()
-		.then(|| PlaySpace::new().ok())
-		.flatten();
-
-	let (info_sender, info_receiver) = oneshot::channel::<EventLoopInfo>();
-	let event_thread = std::thread::Builder::new()
-		.name("event_loop".to_owned())
-		.spawn(move || event_loop(info_sender))
-		.unwrap();
-	let event_loop_info = info_receiver.blocking_recv().unwrap();
-	let _tokio_handle = event_loop_info.tokio_handle.enter();
-
-	let mut buffer_manager = buffers::BufferManager::new().expect("Could not initialize buffer manager");
-
 	#[cfg(feature = "wayland")]
-	let mut wayland = wayland::Wayland::new(&buffer_manager).expect("Could not initialize wayland");
+	let mut wayland = wayland::Wayland::new().expect("Could not initialize wayland");
+	#[cfg(feature = "wayland")]
+	wayland.make_context_current();
+	sk_ready_notifier.notify_waiters();
 	info!("Stardust ready!");
 
-	let mut startup_child = (|| {
-		let project_dirs = project_dirs.as_ref()?;
-		let startup_script_path = cli_args
-			.startup_script
-			.clone()
-			.and_then(|p| p.canonicalize().ok())
-			.unwrap_or_else(|| project_dirs.config_dir().join("startup"));
-		let mut startup_command = Command::new("bash");
-		startup_command.arg(startup_script_path);
-		startup_command.arg("&");
-
-		startup_command.stdin(Stdio::null());
-		startup_command.stdout(Stdio::null());
-		startup_command.stderr(Stdio::null());
-		startup_command.env(
-			"FLAT_WAYLAND_DISPLAY",
-			std::env::var_os("WAYLAND_DISPLAY").unwrap_or_default(),
-		);
-		startup_command.env(
-			"STARDUST_INSTANCE",
-			event_loop_info
-				.socket_path
-				.file_name()
-				.expect("Stardust socket path not found"),
-		);
-		#[cfg(feature = "wayland")]
-		{
-			if let Some(wayland_socket) = wayland.socket_name.as_ref() {
-				startup_command.env("WAYLAND_DISPLAY", &wayland_socket);
-			}
-			#[cfg(feature = "xwayland")]
-			startup_command.env("DISPLAY", format!(":{}", wayland.xwayland_state.display));
-			startup_command.env("GDK_BACKEND", "wayland");
-			startup_command.env("QT_QPA_PLATFORM", "wayland");
-			startup_command.env("MOZ_ENABLE_WAYLAND", "1");
-			startup_command.env("CLUTTER_BACKEND", "wayland");
-			startup_command.env("SDL_VIDEODRIVER", "wayland");
-		}
-		unsafe {
-			startup_command.pre_exec(|| {
-				nix::unistd::setsid()
-					.map(|_| ())
-					.map_err(|_| std::io::ErrorKind::Other.into())
-			})
-		};
-		let child = startup_command.spawn().ok()?;
-		Some(child)
-	})();
+	let mut objects = ServerObjects::new(
+		dbus_connection.clone(),
+		&sk,
+		[left_hand_material, right_hand_material],
+		args.disable_controllers,
+		args.disable_hands,
+	);
 
 	let mut last_frame_delta = Duration::ZERO;
 	let mut sleep_duration = Duration::ZERO;
-	debug_span!("StereoKit").in_scope(|| {
-		sk.run(
-			|sk| {
-				let _span = debug_span!("StereoKit step");
-				let _span = _span.enter();
+	while let Some(token) = sk.step() {
+		let _span = debug_span!("StereoKit step");
+		let _span = _span.enter();
 
-				camera::send_rendered();
-				hmd::frame(sk);
-				#[cfg(feature = "wayland")]
-				wayland.frame_event(sk);
-				destroy_queue::clear();
+		camera::update(token);
+		#[cfg(feature = "wayland")]
+		wayland.frame_event();
+		destroy_queue::clear();
 
-				if let Some(mouse_pointer) = &mut mouse_pointer {
-					mouse_pointer.update(sk);
-				}
-				if let Some((left_hand, right_hand)) = &mut hands {
-					left_hand.update(!cli_args.disable_controller, sk);
-					right_hand.update(!cli_args.disable_controller, sk);
-				}
-				if let Some((left_controller, right_controller)) = &mut controllers {
-					left_controller.update(sk);
-					right_controller.update(sk);
-				}
-				if let Some(eye_pointer) = &eye_pointer {
-					eye_pointer.update(sk);
-				}
-				if let Some(play_space) = &play_space {
-					play_space.update(sk);
-				}
-				input::process_input();
-				nodes::root::Root::send_frame_events(sk.time_elapsed_unscaled());
-				adaptive_sleep(
-					sk,
-					&mut last_frame_delta,
-					&mut sleep_duration,
-					Duration::from_micros(250),
-				);
+		objects.update(&sk, token, &dbus_connection, &object_registry);
+		input::process_input();
+		nodes::root::Root::send_frame_events(Time::get_step_unscaled());
+		adaptive_sleep(
+			&mut last_frame_delta,
+			&mut sleep_duration,
+			Duration::from_micros(250),
+		);
 
-				#[cfg(feature = "wayland")]
-				wayland.update(sk, &mut buffer_manager);
-				drawable::draw(sk);
-				audio::update(sk);
+		tick_internal_client();
+		#[cfg(feature = "wayland")]
+		wayland.update();
+		drawable::draw(token);
+		audio::update();
+	}
 
-				buffer_manager.make_context_current();
-
-				camera::update(sk, &mut buffer_manager);
-			},
-			|_sk| {
-				info!("Cleanly shut down StereoKit");
-
-				if let Some(mut startup_child) = startup_child.take() {
-					let _ = startup_child.kill();
-				}
-			},
-		)
-	});
-
-	#[cfg(feature = "wayland")]
-	drop(wayland);
-
-	STOP_NOTIFIER.notify_waiters();
-	event_thread
-		.join()
-		.expect("Failed to cleanly shut down event loop")
-		.unwrap();
-
-	info!("Cleanly shut down Stardust");
+	info!("Cleanly shut down StereoKit");
 }
 
 fn adaptive_sleep(
-	sk: &impl StereoKitMultiThread,
 	last_frame_delta: &mut Duration,
 	sleep_duration: &mut Duration,
 	sleep_duration_increase: Duration,
 ) {
-	let frame_delta = Duration::from_secs_f64(sk.time_elapsed_unscaled());
+	let frame_delta = Duration::from_secs_f64(Time::get_step_unscaled());
 	if *last_frame_delta < frame_delta {
 		if let Some(frame_delta_delta) = frame_delta.checked_sub(*last_frame_delta) {
 			if let Some(new_sleep_duration) = sleep_duration.checked_sub(frame_delta_delta) {
@@ -347,47 +342,3 @@ fn adaptive_sleep(
 		std::thread::sleep(*sleep_duration); // to give clients a chance to even update anything before drawing
 	});
 }
-
-#[tokio::main]
-// #[tokio::main(flavor = "current_thread")]
-async fn event_loop(info_sender: oneshot::Sender<EventLoopInfo>) -> color_eyre::eyre::Result<()> {
-	let socket_path =
-		server::get_free_socket_path().expect("Unable to find a free stardust socket path");
-	STARDUST_INSTANCE.set(socket_path.file_name().unwrap().to_string_lossy().into_owned()).expect("Someone hasn't done their job, yell at Nova because how is this set multiple times what the hell");
-	let _event_loop = EventLoop::new(socket_path.clone()).expect("Couldn't create server socket");
-	info!("Init event loop");
-	info!(
-		socket_path = ?socket_path.display(),
-		"Stardust socket created"
-	);
-	let _ = info_sender.send(EventLoopInfo {
-		tokio_handle: Handle::current(),
-		socket_path,
-	});
-
-	STOP_NOTIFIER.notified().await;
-	println!("Stopping...");
-	save_clients().await;
-
-	info!("Cleanly shut down event loop");
-
-	unsafe {
-		stereokit::sys::sk_quit();
-	}
-
-	Ok(())
-}
-
-async fn save_clients() {
-	let local_set = LocalSet::new();
-	for client in CLIENTS.get_vec() {
-		local_set.spawn_local(async move {
-			tokio::select! {
-				biased;
-				s = client.save_state() => {s.map(ClientState::to_file);},
-				_ = tokio::time::sleep(Duration::from_millis(100)) => (),
-			}
-		});
-	}
-	local_set.await;
-}

src/nodes/alias.rs

@@ -1,49 +1,163 @@
-use super::Node;
-use crate::core::client::Client;
-use color_eyre::eyre::{ensure, Result};
-use portable_atomic::AtomicBool;
-use std::sync::{Arc, Weak};
+use super::{Aspect, AspectIdentifier, Node};
+use crate::core::{client::Client, error::Result, registry::Registry};
+use std::{
+	ops::Add,
+	sync::{Arc, Weak},
+};
 
 #[derive(Debug, Default, Clone)]
 pub struct AliasInfo {
-	pub(super) server_signals: Vec<&'static str>,
-	pub(super) server_methods: Vec<&'static str>,
-	pub(super) client_signals: Vec<&'static str>,
+	pub(super) server_signals: Vec<u64>,
+	pub(super) server_methods: Vec<u64>,
+	pub(super) client_signals: Vec<u64>,
+}
+impl Add for AliasInfo {
+	type Output = AliasInfo;
+	fn add(mut self, mut rhs: Self) -> Self::Output {
+		self.server_signals.append(&mut rhs.server_signals);
+		self.server_methods.append(&mut rhs.server_methods);
+		self.client_signals.append(&mut rhs.client_signals);
+		self
+	}
 }
 
-#[allow(dead_code)]
+#[derive(Debug)]
 pub struct Alias {
-	pub enabled: Arc<AtomicBool>,
 	pub(super) node: Weak<Node>,
-	pub original: Weak<Node>,
-
-	pub info: AliasInfo,
+	pub(super) original: Weak<Node>,
+	pub(super) info: AliasInfo,
 }
 impl Alias {
 	pub fn create(
-		client: &Arc<Client>,
-		parent: &str,
-		name: &str,
 		original: &Arc<Node>,
+		client: &Arc<Client>,
 		info: AliasInfo,
+		list: Option<&AliasList>,
 	) -> Result<Arc<Node>> {
-		ensure!(
-			client
-				.scenegraph
-				.get_node(&(parent.to_string() + "/" + name))
-				.is_none(),
-			"Node already exists"
-		);
+		let node = Node::generate(client, true).add_to_scenegraph()?;
+		Self::add_to(&node, original, info)?;
+		if let Some(list) = list {
+			list.add(&node);
+		}
+		Ok(node)
+	}
+	pub fn create_with_id(
+		original: &Arc<Node>,
+		client: &Arc<Client>,
+		new_id: u64,
+		info: AliasInfo,
+		list: Option<&AliasList>,
+	) -> Result<Arc<Node>> {
+		let node = Node::from_id(client, new_id, true).add_to_scenegraph()?;
+		Self::add_to(&node, original, info)?;
+		if let Some(list) = list {
+			list.add(&node);
+		}
+		Ok(node)
+	}
 
-		let node = Node::create(client, parent, name, true).add_to_scenegraph()?;
+	fn add_to(new_node: &Arc<Node>, original: &Arc<Node>, info: AliasInfo) -> Result<()> {
 		let alias = Alias {
-			enabled: Arc::new(AtomicBool::new(true)),
-			node: Arc::downgrade(&node),
+			node: Arc::downgrade(new_node),
 			original: Arc::downgrade(original),
 			info,
 		};
 		let alias = original.aliases.add(alias);
-		let _ = node.alias.set(alias);
-		Ok(node)
+		new_node.add_aspect_raw(alias);
+		Ok(())
+	}
+}
+impl AspectIdentifier for Alias {
+	const ID: u64 = 0;
+}
+impl Aspect for Alias {
+	fn as_any(self: Arc<Self>) -> Arc<dyn std::any::Any + Send + Sync + 'static> {
+		self
+	}
+	fn run_signal(
+		&self,
+		_calling_client: Arc<Client>,
+		_node: Arc<Node>,
+		_signal: u64,
+		_message: super::Message,
+	) -> Result<(), stardust_xr::scenegraph::ScenegraphError> {
+		Ok(())
+	}
+	fn run_method(
+		&self,
+		_calling_client: Arc<Client>,
+		_node: Arc<Node>,
+		_method: u64,
+		_message: super::Message,
+		_response: crate::core::scenegraph::MethodResponseSender,
+	) {
+	}
+}
+
+pub fn get_original(node: Arc<Node>, stop_on_disabled: bool) -> Option<Arc<Node>> {
+	let Ok(alias) = node.get_aspect::<Alias>() else {
+		return Some(node);
+	};
+	if stop_on_disabled && !node.enabled() {
+		return None;
+	}
+	get_original(alias.original.upgrade()?, stop_on_disabled)
+}
+pub fn links_to(alias: Arc<Node>, original: Weak<Node>) -> bool {
+	let Ok(alias) = alias.get_aspect::<Alias>() else {
+		return false;
+	};
+	if alias.original.ptr_eq(&original) {
+		return true;
+	}
+	let Some(original_strong) = alias.original.upgrade() else {
+		return false;
+	};
+	links_to(original_strong, original)
+}
+
+#[derive(Debug, Default, Clone)]
+pub struct AliasList(Registry<Node>);
+impl AliasList {
+	fn add(&self, node: &Arc<Node>) {
+		self.0.add_raw(node);
+	}
+	pub fn get_from_original_node(&self, original: Weak<Node>) -> Option<Arc<Node>> {
+		self.0
+			.get_valid_contents()
+			.into_iter()
+			.find(move |node| links_to(node.clone(), original.clone()))
+	}
+	pub fn get_from_aspect<A: AspectIdentifier>(&self, aspect: &A) -> Option<Arc<Node>> {
+		self.0.get_valid_contents().into_iter().find(|node| {
+			let Some(node) = get_original(node.clone(), false) else {
+				return false;
+			};
+			let Ok(aspect2) = node.get_aspect::<A>() else {
+				return false;
+			};
+			Arc::as_ptr(&aspect2) == (aspect as *const A)
+		})
+	}
+	pub fn get_aliases(&self) -> Vec<Arc<Node>> {
+		self.0.get_valid_contents()
+	}
+	pub fn remove_aspect<A: AspectIdentifier>(&self, aspect: &A) {
+		self.0.retain(|node| {
+			let Some(original) = get_original(node.clone(), false) else {
+				return false;
+			};
+			let Ok(aspect2) = original.get_aspect::<A>() else {
+				return false;
+			};
+			Arc::as_ptr(&aspect2) != (aspect as *const A)
+		})
+	}
+}
+impl Drop for AliasList {
+	fn drop(&mut self) {
+		for node in self.0.take_valid_contents() {
+			node.destroy();
+		}
 	}
 }

src/nodes/audio.rs

@@ -1,136 +1,125 @@
-use super::{Message, Node};
+use super::{Aspect, AspectIdentifier, Node};
 use crate::core::client::Client;
 use crate::core::destroy_queue;
+use crate::core::error::Result;
 use crate::core::registry::Registry;
-use crate::core::resource::ResourceID;
-use crate::nodes::spatial::{find_spatial_parent, parse_transform, Spatial};
-use color_eyre::eyre::{ensure, eyre, Result};
-use glam::{vec3, Vec4Swizzles};
-use once_cell::sync::OnceCell;
+use crate::core::resource::get_resource_file;
+use crate::nodes::spatial::{SPATIAL_ASPECT_ALIAS_INFO, Spatial, Transform};
+use color_eyre::eyre::eyre;
+use glam::{Vec4Swizzles, vec3};
 use parking_lot::Mutex;
-use send_wrapper::SendWrapper;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::deserialize;
-use stardust_xr::values::Transform;
+use stardust_xr::values::ResourceID;
+
 use std::ops::DerefMut;
-use std::{ffi::OsStr, path::PathBuf, sync::Arc};
-use stereokit::{Sound as SkSound, SoundInstance, StereoKitDraw};
+use std::sync::{Arc, OnceLock};
+use std::{ffi::OsStr, path::PathBuf};
+use stereokit_rust::sound::{Sound as SkSound, SoundInst};
 
 static SOUND_REGISTRY: Registry<Sound> = Registry::new();
 
+stardust_xr_server_codegen::codegen_audio_protocol!();
 pub struct Sound {
 	space: Arc<Spatial>,
 
 	volume: f32,
 	pending_audio_path: PathBuf,
-	sk_sound: OnceCell<SendWrapper<SkSound>>,
-	instance: Mutex<Option<SoundInstance>>,
+	sk_sound: OnceLock<SkSound>,
+	instance: Mutex<Option<SoundInst>>,
 	stop: Mutex<Option<()>>,
 	play: Mutex<Option<()>>,
 }
-
 impl Sound {
 	pub fn add_to(node: &Arc<Node>, resource_id: ResourceID) -> Result<Arc<Sound>> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-		let pending_audio_path = resource_id
-			.get_file(
-				&node
-					.get_client()
-					.ok_or_else(|| eyre!("Client not found"))?
-					.base_resource_prefixes
-					.lock()
-					.clone(),
-				&[OsStr::new("wav"), OsStr::new("mp3")],
-			)
-			.ok_or_else(|| eyre!("Resource not found"))?;
+		let pending_audio_path = get_resource_file(
+			&resource_id,
+			&*node.get_client().ok_or_else(|| eyre!("Client not found"))?,
+			&[OsStr::new("wav"), OsStr::new("mp3")],
+		)
+		.ok_or_else(|| eyre!("Resource not found"))?;
 		let sound = Sound {
-			space: node.spatial.get().unwrap().clone(),
+			space: node.get_aspect::<Spatial>().unwrap().clone(),
 			volume: 1.0,
 			pending_audio_path,
-			sk_sound: OnceCell::new(),
+			sk_sound: OnceLock::new(),
 			instance: Mutex::new(None),
 			stop: Mutex::new(None),
 			play: Mutex::new(None),
 		};
 		let sound_arc = SOUND_REGISTRY.add(sound);
-		node.add_local_signal("play", Sound::play_flex);
-		node.add_local_signal("stop", Sound::stop_flex);
-		let _ = node.sound.set(sound_arc.clone());
+		node.add_aspect_raw(sound_arc.clone());
 		Ok(sound_arc)
 	}
 
-	fn update(&self, sk: &impl StereoKitDraw) {
-		let sound = self.sk_sound.get_or_init(|| {
-			SendWrapper::new(sk.sound_create(self.pending_audio_path.clone()).unwrap())
-		});
+	fn update(&self) {
+		let sound = self
+			.sk_sound
+			.get_or_init(|| SkSound::from_file(self.pending_audio_path.clone()).unwrap());
 		if self.stop.lock().take().is_some() {
 			if let Some(instance) = self.instance.lock().take() {
-				sk.sound_inst_stop(instance);
+				instance.stop();
 			}
 		}
-		if self.play.lock().is_some() && self.instance.lock().is_none() {
-			self.instance.lock().replace(sk.sound_play(
-				sound.as_ref(),
-				vec3(0.0, 0.0, 0.0),
-				self.volume,
-			));
+		if self.instance.lock().is_none() && self.play.lock().take().is_some() {
+			let instance = sound.play(vec3(0.0, 0.0, 0.0), Some(self.volume));
+			self.instance.lock().replace(instance);
 		}
 		if let Some(instance) = self.instance.lock().deref_mut() {
-			sk.sound_inst_set_pos(*instance, self.space.global_transform().w_axis.xyz());
+			instance.position(self.space.global_transform().w_axis.xyz());
 		}
 	}
-
-	fn play_flex(node: &Node, _calling_client: Arc<Client>, _message: Message) -> Result<()> {
-		let sound = node.sound.get().unwrap();
+}
+impl AspectIdentifier for Sound {
+	impl_aspect_for_sound_aspect_id! {}
+}
+impl Aspect for Sound {
+	impl_aspect_for_sound_aspect! {}
+}
+impl SoundAspect for Sound {
+	fn play(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let sound = node.get_aspect::<Sound>().unwrap();
 		sound.play.lock().replace(());
 		Ok(())
 	}
-
-	pub fn stop_flex(node: &Node, _calling_client: Arc<Client>, _message: Message) -> Result<()> {
-		let sound = node.sound.get().unwrap();
+	fn stop(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let sound = node.get_aspect::<Sound>().unwrap();
 		sound.stop.lock().replace(());
 		Ok(())
 	}
 }
-
-pub fn update(sk: &impl StereoKitDraw) {
-	for sound in SOUND_REGISTRY.get_valid_contents() {
-		sound.update(sk)
-	}
-}
-
-pub fn create_interface(client: &Arc<Client>) -> Result<()> {
-	let node = Node::create(client, "", "audio", false);
-	node.add_local_signal("create_sound", create_flex);
-	node.add_to_scenegraph().map(|_| ())
-}
-
-pub fn create_flex(_node: &Node, calling_client: Arc<Client>, message: Message) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateSoundInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		resource: ResourceID,
-	}
-	let info: CreateSoundInfo = deserialize(message.as_ref())?;
-	let node = Node::create(&calling_client, "/audio/sound", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, true);
-	let node = node.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
-	Sound::add_to(&node, info.resource)?;
-	Ok(())
-}
-
 impl Drop for Sound {
 	fn drop(&mut self) {
 		if let Some(instance) = self.instance.lock().take() {
-			destroy_queue::add(instance);
+			instance.stop();
+		}
+		if let Some(sk_sound) = self.sk_sound.take() {
+			destroy_queue::add(sk_sound);
 		}
 		SOUND_REGISTRY.remove(self);
 	}
 }
+
+pub fn update() {
+	for sound in SOUND_REGISTRY.get_valid_contents() {
+		sound.update()
+	}
+}
+
+impl InterfaceAspect for Interface {
+	#[doc = "Create a sound node. WAV and MP3 are supported."]
+	fn create_sound(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		resource: ResourceID,
+	) -> Result<()> {
+		let node = Node::from_id(&calling_client, id, true);
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = transform.to_mat4(true, true, true);
+		let node = node.add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		Sound::add_to(&node, resource)?;
+		Ok(())
+	}
+}

src/nodes/data.rs

@@ -1,355 +0,0 @@
-use super::alias::AliasInfo;
-use super::fields::Field;
-use super::spatial::{parse_transform, Spatial};
-use super::{Alias, Message, Node};
-use crate::core::client::Client;
-use crate::core::node_collections::LifeLinkedNodeMap;
-use crate::core::registry::Registry;
-use crate::core::scenegraph::MethodResponseSender;
-use crate::nodes::fields::{find_field, FIELD_ALIAS_INFO};
-use crate::nodes::spatial::find_spatial_parent;
-use color_eyre::eyre::{bail, ensure, eyre, Result};
-use glam::vec3a;
-use lazy_static::lazy_static;
-use mint::{Quaternion, Vector3};
-use nanoid::nanoid;
-use parking_lot::Mutex;
-use rustc_hash::FxHashMap;
-use serde::{Deserialize, Serialize};
-use stardust_xr::schemas::flex::{deserialize, flexbuffers, serialize};
-use stardust_xr::values::Transform;
-use std::fmt::Display;
-use std::sync::{Arc, Weak};
-
-lazy_static! {
-	pub static ref KEYMAPS: Mutex<FxHashMap<String, String>> = Mutex::new(FxHashMap::default());
-}
-
-static PULSE_SENDER_REGISTRY: Registry<PulseSender> = Registry::new();
-pub static PULSE_RECEIVER_REGISTRY: Registry<PulseReceiver> = Registry::new();
-
-pub fn mask_matches(mask_map_lesser: &Mask, mask_map_greater: &Mask) -> bool {
-	(|| -> Result<_> {
-		for key in mask_map_lesser.get_mask()?.iter_keys() {
-			let lesser_key = mask_map_lesser.get_mask()?.index(key)?;
-			let greater_key = mask_map_greater.get_mask()?.index(key)?;
-			// otherwise zero-length vectors don't count the same as a single type vector
-			if lesser_key.flexbuffer_type().is_heterogenous_vector()
-				&& lesser_key.as_vector().len() == 0
-				&& greater_key.flexbuffer_type().is_vector()
-			{
-				continue;
-			}
-			if !lesser_key.flexbuffer_type().is_null()
-				&& lesser_key.flexbuffer_type() != greater_key.flexbuffer_type()
-			{
-				return Err(flexbuffers::ReaderError::InvalidPackedType {}.into());
-			}
-		}
-		Ok(())
-	})()
-	.is_ok()
-}
-
-pub struct Mask(pub Vec<u8>);
-impl Mask {
-	pub fn from_struct<T: Default + Serialize>() -> Self {
-		let mut serializer = flexbuffers::FlexbufferSerializer::new();
-		T::default().serialize(&mut serializer).unwrap();
-		Mask(serializer.take_buffer())
-	}
-	pub fn get_mask(&self) -> Result<flexbuffers::MapReader<&[u8]>> {
-		flexbuffers::Reader::get_root(self.0.as_slice())
-			.map_err(|_| eyre!("Mask is not a valid flexbuffer"))?
-			.get_map()
-			.map_err(|_| eyre!("Mask is not a valid map"))
-	}
-}
-impl Display for Mask {
-	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-		flexbuffers::Reader::get_root(self.0.as_slice())
-			.unwrap()
-			.to_string()
-			.fmt(f)
-	}
-}
-
-#[derive(Serialize, Deserialize)]
-struct SendDataInfo<'a> {
-	uid: &'a str,
-	data: Vec<u8>,
-}
-
-pub struct PulseSender {
-	uid: String,
-	node: Weak<Node>,
-	pub mask: Mask,
-	aliases: LifeLinkedNodeMap<String>,
-}
-impl PulseSender {
-	pub fn add_to(node: &Arc<Node>, mask: Mask) -> Result<Arc<PulseSender>> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-
-		let sender = PulseSender {
-			uid: nanoid!(),
-			node: Arc::downgrade(node),
-			mask,
-			aliases: LifeLinkedNodeMap::default(),
-		};
-		let sender = PULSE_SENDER_REGISTRY.add(sender);
-		let _ = node.pulse_sender.set(sender.clone());
-		node.add_local_signal("send_data", PulseSender::send_data_flex);
-		for receiver in PULSE_RECEIVER_REGISTRY.get_valid_contents() {
-			sender.handle_new_receiver(&receiver);
-		}
-		Ok(sender.clone())
-	}
-	fn handle_new_receiver(&self, receiver: &PulseReceiver) {
-		if !mask_matches(&self.mask, &receiver.mask) {
-			return;
-		}
-		let Some(tx_node) = self.node.upgrade() else {return};
-		let Some(tx_client) = tx_node.get_client() else {return};
-		let Some(rx_node) = receiver.node.upgrade() else {return};
-		// Receiver itself
-		let rx_alias = Alias::create(
-			&tx_client,
-			tx_node.get_path(),
-			receiver.uid.as_str(),
-			&rx_node,
-			AliasInfo {
-				server_methods: vec!["sendData", "getTransform"],
-				..Default::default()
-			},
-		);
-		if let Ok(rx_alias) = rx_alias {
-			self.aliases.add(receiver.uid.clone(), &rx_alias);
-
-			if let Some(rx_field_node) = receiver.field.spatial_ref().node.upgrade() {
-				// Receiver's field
-				let rx_field_alias = Alias::create(
-					&tx_client,
-					rx_alias.get_path(),
-					"field",
-					&rx_field_node,
-					FIELD_ALIAS_INFO.clone(),
-				);
-				if let Ok(rx_field_alias) = rx_field_alias {
-					self.aliases
-						.add(receiver.uid.clone() + "-field", &rx_field_alias);
-				}
-			}
-		}
-
-		#[derive(Serialize)]
-		struct NewReceiverInfo<'a> {
-			uid: &'a str,
-			distance: f32,
-			position: Vector3<f32>,
-			rotation: Quaternion<f32>,
-		}
-
-		let (_, rotation, position) = Spatial::space_to_space_matrix(
-			rx_node.spatial.get().map(|s| s.as_ref()),
-			tx_node.spatial.get().map(|s| s.as_ref()),
-		)
-		.to_scale_rotation_translation();
-
-		let info = NewReceiverInfo {
-			uid: &receiver.uid,
-			distance: receiver
-				.field
-				.distance(tx_node.spatial.get().unwrap(), vec3a(0.0, 0.0, 0.0)),
-			position: position.into(),
-			rotation: rotation.into(),
-		};
-
-		let Ok(data) = serialize(info) else {return};
-		let _ = tx_node.send_remote_signal("new_receiver", data);
-	}
-
-	fn handle_drop_receiver(&self, receiver: &PulseReceiver) {
-		let uid = receiver.uid.as_str();
-		self.aliases.remove(uid);
-		self.aliases.remove(&(uid.to_string() + "-field"));
-		let Some(tx_node) = self.node.upgrade() else {return};
-		let Ok(data) = serialize(&uid) else {return};
-		let _ = tx_node.send_remote_signal("drop_receiver", data);
-	}
-
-	fn send_data_flex(node: &Node, calling_client: Arc<Client>, message: Message) -> Result<()> {
-		let info: SendDataInfo = deserialize(message.as_ref())?;
-		let receiver_node = calling_client.get_node("Pulse receiver", info.uid)?;
-		let receiver =
-			receiver_node.get_aspect("Pulse Receiver", "pulse receiver", |n| &n.pulse_receiver)?;
-		let receiver_mask = &receiver_node
-			.get_aspect("Pulse receiver", "pulse receiver", |node| {
-				&node.pulse_receiver
-			})?
-			.mask;
-
-		let data_mask = Mask(info.data);
-		data_mask.get_mask()?;
-		ensure!(
-			mask_matches(receiver_mask, &data_mask),
-			"Message ({}) does not contain the same keys as the receiver's mask ({})",
-			data_mask,
-			receiver_mask
-		);
-		receiver.send_data(&node.pulse_sender.get().unwrap().uid, data_mask.0)
-	}
-}
-impl Drop for PulseSender {
-	fn drop(&mut self) {
-		PULSE_SENDER_REGISTRY.remove(self);
-	}
-}
-
-pub struct PulseReceiver {
-	uid: String,
-	pub node: Weak<Node>,
-	pub field: Arc<Field>,
-	pub mask: Mask,
-}
-impl PulseReceiver {
-	pub fn add_to(node: &Arc<Node>, field: Arc<Field>, mask: Mask) -> Result<Arc<PulseReceiver>> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-
-		let receiver = PulseReceiver {
-			uid: nanoid!(),
-			node: Arc::downgrade(node),
-			field,
-			mask,
-		};
-		let receiver = PULSE_RECEIVER_REGISTRY.add(receiver);
-
-		for sender in PULSE_SENDER_REGISTRY.get_valid_contents() {
-			sender.handle_new_receiver(&receiver);
-		}
-		let _ = node.pulse_receiver.set(receiver.clone());
-		Ok(receiver)
-	}
-
-	pub fn send_data(&self, uid: &str, data: Vec<u8>) -> Result<()> {
-		if let Some(node) = self.node.upgrade() {
-			node.send_remote_signal("data", serialize(SendDataInfo { uid, data })?)?;
-		}
-		Ok(())
-	}
-}
-
-impl Drop for PulseReceiver {
-	fn drop(&mut self) {
-		PULSE_RECEIVER_REGISTRY.remove(self);
-		for sender in PULSE_SENDER_REGISTRY.get_valid_contents() {
-			sender.handle_drop_receiver(self);
-		}
-	}
-}
-
-pub fn create_interface(client: &Arc<Client>) -> Result<()> {
-	let node = Node::create(client, "", "data", false);
-	node.add_local_signal("create_pulse_sender", create_pulse_sender_flex);
-	node.add_local_signal("create_pulse_receiver", create_pulse_receiver_flex);
-	node.add_local_method("register_keymap", register_keymap_flex);
-	node.add_local_method("get_keymap", get_keymap_flex);
-	node.add_to_scenegraph().map(|_| ())
-}
-
-pub fn create_pulse_sender_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	message: Message,
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreatePulseSenderInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		mask: Vec<u8>,
-	}
-	let info: CreatePulseSenderInfo = deserialize(message.as_ref())?;
-	let node = Node::create(&calling_client, "/data/sender", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false);
-
-	let mask = Mask(info.mask);
-	mask.get_mask()?;
-
-	let node = node.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
-	PulseSender::add_to(&node, mask)?;
-	Ok(())
-}
-
-pub fn create_pulse_receiver_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	message: Message,
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreatePulseReceiverInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		field_path: &'a str,
-		mask: Vec<u8>,
-	}
-	let info: CreatePulseReceiverInfo = deserialize(message.as_ref())?;
-	let node = Node::create(&calling_client, "/data/receiver", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false);
-	let field = find_field(&calling_client, info.field_path)?;
-	let mask = Mask(info.mask);
-	mask.get_mask()?;
-
-	let node = node.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
-	PulseReceiver::add_to(&node, field, mask)?;
-	Ok(())
-}
-
-pub fn register_keymap_flex(
-	_node: &Node,
-	_calling_client: Arc<Client>,
-	message: Message,
-	response: MethodResponseSender,
-) {
-	response.wrap_sync(move || {
-		let keymap: String = deserialize(message.as_ref())?;
-		let mut keymaps = KEYMAPS.lock();
-		if let Some(found_keymap_id) = keymaps
-			.iter()
-			.filter(|(_k, v)| *v == &keymap)
-			.map(|(k, _v)| k)
-			.last()
-		{
-			return Ok(serialize(found_keymap_id)?.into());
-		}
-
-		let generated_id = nanoid!();
-		keymaps.insert(generated_id.clone(), keymap);
-
-		Ok(serialize(generated_id)?.into())
-	});
-}
-pub fn get_keymap_flex(
-	_node: &Node,
-	_calling_client: Arc<Client>,
-	message: Message,
-	response: MethodResponseSender,
-) {
-	response.wrap_sync(move || {
-		let keymap_id: &str = deserialize(message.as_ref())?;
-		let keymaps = KEYMAPS.lock();
-		let Some(keymap) = keymaps.get(keymap_id) else {bail!("Could not find keymap. Try registering it")};
-
-		Ok(serialize(keymap)?.into())
-	});
-}

src/nodes/drawable/lines.rs

@@ -1,126 +1,89 @@
+use super::{Line, LinesAspect};
 use crate::{
-	core::{client::Client, registry::Registry},
-	nodes::{
-		spatial::{find_spatial_parent, parse_transform, Spatial},
-		Message, Node,
-	},
+	core::{client::Client, error::Result, registry::Registry},
+	nodes::{Node, spatial::Spatial},
 };
-use color_eyre::eyre::{bail, ensure, Result};
-use glam::Vec3A;
-use mint::Vector3;
+use glam::{FloatExt, Vec3};
 use parking_lot::Mutex;
-use portable_atomic::{AtomicBool, Ordering};
-use prisma::{Flatten, Lerp, Rgba};
-use serde::Deserialize;
-use stardust_xr::{schemas::flex::deserialize, values::Transform};
 use std::{collections::VecDeque, sync::Arc};
-use stereokit::{bounds_grow_to_fit_pt, Bounds, Color128, LinePoint as SkLinePoint, StereoKitDraw};
-
-use super::Drawable;
+use stereokit_rust::{
+	maths::Bounds, sk::MainThreadToken, system::LinePoint as SkLinePoint, util::Color128,
+};
 
 static LINES_REGISTRY: Registry<Lines> = Registry::new();
 
-#[derive(Debug, Clone, Deserialize)]
-struct LinePointRaw {
-	point: Vector3<f32>,
-	thickness: f32,
-	color: [f32; 4],
-}
-
-#[derive(Debug, Clone)]
-struct LineData {
-	points: Vec<LinePointRaw>,
-	cyclic: bool,
-}
-
 pub struct Lines {
-	enabled: Arc<AtomicBool>,
 	space: Arc<Spatial>,
-	data: Mutex<LineData>,
+	data: Mutex<Vec<Line>>,
 }
 impl Lines {
-	fn add_to(node: &Arc<Node>, points: Vec<LinePointRaw>, cyclic: bool) -> Result<Arc<Lines>> {
-		ensure!(
-			node.drawable.get().is_none(),
-			"Internal: Node already has a drawable attached!"
-		);
-
-		let _ = node.spatial.get().unwrap().bounding_box_calc.set(|node| {
-			let mut bounds = Bounds::default();
-			let Some(Drawable::Lines(lines)) = node.drawable.get() else {return bounds};
-			for point in &lines.data.lock().points {
-				bounds = bounds_grow_to_fit_pt(bounds, point.point);
-			}
-
-			bounds
-		});
+	pub fn add_to(node: &Arc<Node>, lines: Vec<Line>) -> Result<Arc<Lines>> {
+		let _ = node
+			.get_aspect::<Spatial>()
+			.unwrap()
+			.bounding_box_calc
+			.set(|node| {
+				let mut bounds = Bounds::default();
+				if let Ok(lines) = node.get_aspect::<Lines>() {
+					for line in &*lines.data.lock() {
+						for point in &line.points {
+							bounds.grown_point(Vec3::from(point.point));
+						}
+					}
+				}
+				bounds
+			});
 
 		let lines = LINES_REGISTRY.add(Lines {
-			enabled: node.enabled.clone(),
-			space: node.get_aspect("Lines", "spatial", |n| &n.spatial)?.clone(),
-			data: Mutex::new(LineData { points, cyclic }),
+			space: node.get_aspect::<Spatial>()?.clone(),
+			data: Mutex::new(lines),
 		});
-		node.add_local_signal("set_points", Lines::set_points_flex);
-		node.add_local_signal("set_cyclic", Lines::set_cyclic_flex);
-		let _ = node.drawable.set(Drawable::Lines(lines.clone()));
+		node.add_aspect_raw(lines.clone());
 
 		Ok(lines)
 	}
 
-	fn draw(&self, draw_ctx: &impl StereoKitDraw) {
+	fn draw(&self, token: &MainThreadToken) {
 		let transform_mat = self.space.global_transform();
 		let data = self.data.lock().clone();
-		let mut points: VecDeque<SkLinePoint> = data
-			.points
-			.iter()
-			.map(|p| SkLinePoint {
-				pt: transform_mat.transform_point3a(Vec3A::from(p.point)).into(),
-				thickness: p.thickness,
-				color: p.color.map(|c| (c * 255.0) as u8).into(),
-			})
-			.collect();
-		if data.cyclic && !points.is_empty() {
-			let first = data.points.first().unwrap();
-			let last = data.points.last().unwrap();
-			let color = Rgba::from_slice(&first.color).lerp(&Rgba::from_slice(&last.color), 0.5);
-			let connect_point = SkLinePoint {
-				pt: transform_mat
-					.transform_point3a(Vec3A::from(first.point).lerp(Vec3A::from(last.point), 0.5))
-					.into(),
-				thickness: (first.thickness + last.thickness) * 0.5,
-				color: Color128::from([color.red(), color.green(), color.blue(), color.alpha()])
-					.into(),
-			};
-			points.push_front(connect_point.clone());
-			points.push_back(connect_point);
+		for line in &data {
+			let mut points: VecDeque<SkLinePoint> = line
+				.points
+				.iter()
+				.map(|p| SkLinePoint {
+					pt: transform_mat.transform_point3(Vec3::from(p.point)).into(),
+					thickness: p.thickness,
+					color: Color128::new(p.color.c.r, p.color.c.g, p.color.c.b, p.color.a).into(),
+				})
+				.collect();
+			if line.cyclic && !points.is_empty() {
+				let first = line.points.first().unwrap();
+				let last = line.points.last().unwrap();
+
+				let color = Color128 {
+					r: first.color.c.r.lerp(last.color.c.r, 0.5),
+					g: first.color.c.g.lerp(last.color.c.g, 0.5),
+					b: first.color.c.b.lerp(last.color.c.b, 0.5),
+					a: first.color.a.lerp(last.color.a, 0.5),
+				};
+				let connect_point = SkLinePoint {
+					pt: transform_mat
+						.transform_point3(Vec3::from(first.point).lerp(Vec3::from(last.point), 0.5))
+						.into(),
+					thickness: (first.thickness + last.thickness) * 0.5,
+					color: color.into(),
+				};
+				points.push_front(connect_point);
+				points.push_back(connect_point);
+			}
+			stereokit_rust::system::Lines::add_list(token, points.make_contiguous());
 		}
-		draw_ctx.line_add_listv(points.make_contiguous());
 	}
-
-	pub fn set_points_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		message: Message,
-	) -> Result<()> {
-		let Some(Drawable::Lines(lines)) = node.drawable.get() else {bail!("Not a drawable??")};
-
-		let mut points: Vec<LinePointRaw> = deserialize(message.as_ref())?;
-		for p in &mut points {
-			p.color[0] = p.color[0].powf(2.2);
-			p.color[1] = p.color[1].powf(2.2);
-			p.color[2] = p.color[2].powf(2.2);
-		}
-		lines.data.lock().points = points;
-		Ok(())
-	}
-	pub fn set_cyclic_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		message: Message,
-	) -> Result<()> {
-		let Some(Drawable::Lines(lines)) = node.drawable.get() else {bail!("Not a drawable??")};
-
-		lines.data.lock().cyclic = deserialize(message.as_ref())?;
+}
+impl LinesAspect for Lines {
+	fn set_lines(node: Arc<Node>, _calling_client: Arc<Client>, lines: Vec<Line>) -> Result<()> {
+		let lines_aspect = node.get_aspect::<Lines>()?;
+		*lines_aspect.data.lock() = lines;
 		Ok(())
 	}
 }
@@ -130,36 +93,12 @@ impl Drop for Lines {
 	}
 }
 
-pub fn draw_all(draw_ctx: &impl StereoKitDraw) {
+pub fn draw_all(token: &MainThreadToken) {
 	for lines in LINES_REGISTRY.get_valid_contents() {
-		if lines.enabled.load(Ordering::Relaxed) {
-			lines.draw(draw_ctx);
+		if let Some(node) = lines.space.node() {
+			if node.enabled() {
+				lines.draw(token);
+			}
 		}
 	}
 }
-
-pub fn create_flex(_node: &Node, calling_client: Arc<Client>, message: Message) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateTextInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		points: Vec<LinePointRaw>,
-		cyclic: bool,
-	}
-	let mut info: CreateTextInfo = deserialize(message.as_ref())?;
-	let node = Node::create(&calling_client, "/drawable/lines", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, true);
-
-	for p in &mut info.points {
-		p.color[0] = p.color[0].powf(2.2);
-		p.color[1] = p.color[1].powf(2.2);
-		p.color[2] = p.color[2].powf(2.2);
-	}
-
-	let node = node.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
-	Lines::add_to(&node, info.points, info.cyclic)?;
-	Ok(())
-}

src/nodes/drawable/mod.rs

@@ -3,74 +3,164 @@ pub mod model;
 pub mod shaders;
 pub mod text;
 
-use self::{
-	lines::Lines,
-	model::{Model, ModelPart},
-	text::Text,
+use self::{lines::Lines, model::Model, text::Text};
+use super::{
+	Aspect, AspectIdentifier, Node,
+	spatial::{Spatial, Transform},
 };
-
-use super::{Message, Node};
-use crate::core::client::Client;
-use color_eyre::eyre::Result;
+use crate::{DEFAULT_SKYLIGHT, nodes::spatial::SPATIAL_ASPECT_ALIAS_INFO};
+use crate::{
+	DEFAULT_SKYTEX,
+	core::{client::Client, error::Result, resource::get_resource_file},
+};
+use color_eyre::eyre::eyre;
+use model::ModelPart;
 use parking_lot::Mutex;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::deserialize;
-use std::{path::PathBuf, sync::Arc};
-use stereokit::StereoKitDraw;
-use tracing::instrument;
+use stardust_xr::values::ResourceID;
+use std::{ffi::OsStr, path::PathBuf, sync::Arc};
+use stereokit_rust::{sk::MainThreadToken, system::Renderer, tex::SHCubemap};
 
-pub fn create_interface(client: &Arc<Client>) -> Result<()> {
-	let node = Node::create(client, "", "drawable", false);
-	node.add_local_signal("create_lines", lines::create_flex);
-	node.add_local_signal("create_model", model::create_flex);
-	node.add_local_signal("create_text", text::create_flex);
-	node.add_local_signal("set_sky_file", set_sky_file_flex);
-	node.add_to_scenegraph().map(|_| ())
-}
-
-pub enum Drawable {
-	Lines(Arc<Lines>),
-	Model(Arc<Model>),
-	ModelPart(Arc<ModelPart>),
-	Text(Arc<Text>),
-}
-
-#[instrument(level = "debug", skip(sk))]
-pub fn draw(sk: &impl StereoKitDraw) {
-	lines::draw_all(sk);
-	model::draw_all(sk);
-	text::draw_all(sk);
-
-	if let Some(skytex) = QUEUED_SKYTEX.lock().take() {
-		if let Ok((_skylight, skytex)) = sk.tex_create_cubemap_file(&skytex, true, i32::MAX) {
-			sk.render_set_skytex(&skytex);
+// #[instrument(level = "debug", skip(sk))]
+pub fn draw(token: &MainThreadToken) {
+	lines::draw_all(token);
+	model::draw_all(token);
+	text::draw_all(token);
+	match QUEUED_SKYTEX.lock().take() {
+		Some(Some(skytex)) => {
+			if let Ok(skytex) = SHCubemap::from_cubemap(skytex, true, 100) {
+				Renderer::skytex(skytex.tex);
+			}
 		}
-	}
-	if let Some(skylight) = QUEUED_SKYLIGHT.lock().take() {
-		if let Ok((skylight, _)) = sk.tex_create_cubemap_file(&skylight, true, i32::MAX) {
-			sk.render_set_skylight(skylight);
+		Some(None) => {
+			Renderer::skytex(DEFAULT_SKYTEX.get().unwrap());
 		}
+		None => {}
+	}
+	match QUEUED_SKYLIGHT.lock().take() {
+		Some(Some(skylight)) => {
+			if let Ok(skylight) = SHCubemap::from_cubemap(skylight, true, 100) {
+				Renderer::skylight(skylight.sh);
+			}
+		}
+		Some(None) => {
+			Renderer::skylight(*DEFAULT_SKYLIGHT.get().unwrap());
+		}
+		None => {}
 	}
 }
 
-static QUEUED_SKYLIGHT: Mutex<Option<PathBuf>> = Mutex::new(None);
-static QUEUED_SKYTEX: Mutex<Option<PathBuf>> = Mutex::new(None);
+static QUEUED_SKYLIGHT: Mutex<Option<Option<PathBuf>>> = Mutex::new(None);
+static QUEUED_SKYTEX: Mutex<Option<Option<PathBuf>>> = Mutex::new(None);
 
-fn set_sky_file_flex(_node: &Node, _calling_client: Arc<Client>, message: Message) -> Result<()> {
-	#[derive(Deserialize)]
-	struct SkyFileInfo {
-		path: PathBuf,
-		skytex: Option<bool>,
-		skylight: Option<bool>,
-	}
-	let info: SkyFileInfo = deserialize(message.as_ref())?;
-	info.path.metadata()?;
-	if info.skytex.unwrap_or_default() {
-		QUEUED_SKYTEX.lock().replace(info.path.clone());
-	}
-	if info.skylight.unwrap_or_default() {
-		QUEUED_SKYLIGHT.lock().replace(info.path);
-	}
+stardust_xr_server_codegen::codegen_drawable_protocol!();
 
-	Ok(())
+impl AspectIdentifier for Lines {
+	impl_aspect_for_lines_aspect_id! {}
+}
+impl Aspect for Lines {
+	impl_aspect_for_lines_aspect! {}
+}
+impl AspectIdentifier for Model {
+	impl_aspect_for_model_aspect_id! {}
+}
+impl Aspect for Model {
+	impl_aspect_for_model_aspect! {}
+}
+impl AspectIdentifier for ModelPart {
+	impl_aspect_for_model_part_aspect_id! {}
+}
+impl Aspect for ModelPart {
+	impl_aspect_for_model_part_aspect! {}
+}
+impl AspectIdentifier for Text {
+	impl_aspect_for_text_aspect_id! {}
+}
+impl Aspect for Text {
+	impl_aspect_for_text_aspect! {}
+}
+
+impl InterfaceAspect for Interface {
+	fn set_sky_tex(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		tex: Option<ResourceID>,
+	) -> Result<()> {
+		let resource_path = tex
+			.map(|tex| {
+				get_resource_file(&tex, &calling_client, &[OsStr::new("hdr")])
+					.ok_or(eyre!("Could not find resource"))
+			})
+			.transpose()?;
+		QUEUED_SKYTEX.lock().replace(resource_path);
+		Ok(())
+	}
+
+	fn set_sky_light(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		light: Option<ResourceID>,
+	) -> Result<()> {
+		let resource_path = light
+			.map(|light| {
+				get_resource_file(&light, &calling_client, &[OsStr::new("hdr")])
+					.ok_or(eyre!("Could not find resource"))
+			})
+			.transpose()?;
+		QUEUED_SKYLIGHT.lock().replace(resource_path);
+		Ok(())
+	}
+
+	fn create_lines(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		lines: Vec<Line>,
+	) -> Result<()> {
+		let node = Node::from_id(&calling_client, id, true);
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = transform.to_mat4(true, true, true);
+
+		let node = node.add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		Lines::add_to(&node, lines)?;
+		Ok(())
+	}
+
+	fn load_model(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		model: ResourceID,
+	) -> Result<()> {
+		let node = Node::from_id(&calling_client, id, true);
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = transform.to_mat4(true, true, true);
+		let node = node.add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		Model::add_to(&node, model)?;
+		Ok(())
+	}
+
+	fn create_text(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		text: String,
+		style: TextStyle,
+	) -> Result<()> {
+		let node = Node::from_id(&calling_client, id, true);
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = transform.to_mat4(true, true, true);
+
+		let node = node.add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		Text::add_to(&node, text, style)?;
+		Ok(())
+	}
 }

src/nodes/drawable/model.rs

@@ -1,114 +1,142 @@
-use super::Node;
+use super::{MODEL_PART_ASPECT_ALIAS_INFO, MaterialParameter, ModelAspect, ModelPartAspect};
+use crate::bail;
 use crate::core::client::Client;
-use crate::core::node_collections::LifeLinkedNodeMap;
+use crate::core::error::Result;
 use crate::core::registry::Registry;
-use crate::core::resource::ResourceID;
-use crate::nodes::drawable::Drawable;
-use crate::nodes::spatial::{find_spatial_parent, parse_transform, Spatial};
-use crate::nodes::Message;
-use crate::SK_MULTITHREAD;
-use color_eyre::eyre::{bail, ensure, eyre, Result};
-use glam::Mat4;
-use mint::{ColumnMatrix4, Vector2, Vector3, Vector4};
-use once_cell::sync::OnceCell;
+use crate::core::resource::get_resource_file;
+use crate::nodes::Node;
+use crate::nodes::alias::{Alias, AliasList};
+use crate::nodes::spatial::Spatial;
+use color_eyre::eyre::eyre;
+use glam::{Mat4, Vec2, Vec3};
 use parking_lot::Mutex;
-use portable_atomic::{AtomicBool, Ordering};
 use rustc_hash::FxHashMap;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::deserialize;
-use stardust_xr::values::Transform;
+use stardust_xr::values::ResourceID;
 use std::ffi::OsStr;
-use std::path::PathBuf;
-use std::sync::{Arc, Weak};
-use stereokit::named_colors::WHITE;
-use stereokit::{
-	Bounds, Color128, Material, Model as SKModel, RenderLayer, Shader, StereoKitDraw,
-	StereoKitMultiThread,
-};
+use std::hash::{Hash, Hasher};
+use std::sync::{Arc, LazyLock, OnceLock, Weak};
+use stereokit_rust::material::Transparency;
+use stereokit_rust::maths::Bounds;
+use stereokit_rust::sk::MainThreadToken;
+use stereokit_rust::{material::Material, model::Model as SKModel, tex::Tex, util::Color128};
 
-static MODEL_REGISTRY: Registry<Model> = Registry::new();
-
-#[derive(Deserialize, Debug)]
-#[serde(tag = "t", content = "c")]
-pub enum MaterialParameter {
-	Float(f32),
-	Vector2(Vector2<f32>),
-	Vector3(Vector3<f32>),
-	Vector4(Vector4<f32>),
-	Color([f32; 4]),
-	Int(i32),
-	Int2(Vector2<i32>),
-	Int3(Vector3<i32>),
-	Int4(Vector4<i32>),
-	Bool(bool),
-	UInt(u32),
-	UInt2(Vector2<u32>),
-	UInt3(Vector3<u32>),
-	UInt4(Vector4<u32>),
-	Matrix(ColumnMatrix4<f32>),
-	Texture(ResourceID),
+pub struct MaterialWrapper(pub Material);
+impl Drop for MaterialWrapper {
+	fn drop(&mut self) {
+		MATERIAL_REGISTRY.remove(self);
+	}
 }
+
+impl Hash for MaterialWrapper {
+	fn hash<H: Hasher>(&self, state: &mut H) {
+		self.0.get_shader().0.as_ptr().hash(state);
+		for param in self.0.get_all_param_info() {
+			param.name.hash(state);
+			param.to_string().hash(state);
+		}
+		self.0.get_chain().map(MaterialWrapper).hash(state)
+	}
+}
+impl PartialEq for MaterialWrapper {
+	fn eq(&self, other: &Self) -> bool {
+		if self.0.get_shader().0.as_ptr() != other.0.get_shader().0.as_ptr() {
+			return false;
+		}
+		if self.0.get_all_param_info().count() != other.0.get_all_param_info().count() {
+			return false;
+		}
+		for self_param in self.0.get_all_param_info() {
+			let Some(other_param) = other
+				.0
+				.get_all_param_info()
+				.get_data(self_param.get_name(), self_param.get_type())
+			else {
+				return false;
+			};
+			if self_param.to_string() != other_param.to_string() {
+				return false;
+			}
+		}
+		self.0.get_chain().map(MaterialWrapper) == other.0.get_chain().map(MaterialWrapper)
+	}
+}
+impl Eq for MaterialWrapper {}
+unsafe impl Send for MaterialWrapper {}
+unsafe impl Sync for MaterialWrapper {}
+
+#[derive(Default)]
+struct MaterialRegistry(Mutex<FxHashMap<u64, Weak<MaterialWrapper>>>);
+impl MaterialRegistry {
+	fn add_or_get(&self, material: Arc<MaterialWrapper>) -> Arc<MaterialWrapper> {
+		let hash = {
+			use std::hash::{Hash, Hasher};
+			let mut hasher = std::collections::hash_map::DefaultHasher::new();
+			material.hash(&mut hasher);
+			hasher.finish()
+		};
+
+		let mut lock = self.0.lock();
+		if let Some(mat) = lock.get(&hash) {
+			if let Some(mat) = mat.upgrade() {
+				return mat;
+			}
+		}
+
+		lock.insert(hash, Arc::downgrade(&material));
+		material
+	}
+	fn remove(&self, material: &MaterialWrapper) {
+		let hash = {
+			use std::hash::{Hash, Hasher};
+			let mut hasher = std::collections::hash_map::DefaultHasher::new();
+			material.hash(&mut hasher);
+			hasher.finish()
+		};
+		let mut lock = self.0.lock();
+		lock.remove(&hash);
+	}
+}
+
+static MATERIAL_REGISTRY: LazyLock<MaterialRegistry> = LazyLock::new(MaterialRegistry::default);
+static MODEL_REGISTRY: Registry<Model> = Registry::new();
+static HOLDOUT_MATERIAL: OnceLock<Arc<MaterialWrapper>> = OnceLock::new();
+
 impl MaterialParameter {
-	fn apply_to_material(
-		&self,
-		client: &Client,
-		sk: &impl StereoKitMultiThread,
-		material: &Material,
-		parameter_name: &str,
-	) {
+	fn apply_to_material(&self, client: &Client, material: &Material, parameter_name: &str) {
+		let mut params = material.get_all_param_info();
 		match self {
-			MaterialParameter::Float(val) => {
-				sk.material_set_float(material, parameter_name, *val);
-			}
-			MaterialParameter::Vector2(val) => {
-				sk.material_set_vector2(material, parameter_name, *val);
-			}
-			MaterialParameter::Vector3(val) => {
-				sk.material_set_vector3(material, parameter_name, *val);
-			}
-			MaterialParameter::Vector4(val) => {
-				sk.material_set_vector4(material, parameter_name, *val);
-			}
-			MaterialParameter::Color(val) => {
-				sk.material_set_color(material, parameter_name, Color128::from(val.clone()));
+			MaterialParameter::Bool(val) => {
+				params.set_bool(parameter_name, *val);
 			}
 			MaterialParameter::Int(val) => {
-				sk.material_set_int(material, parameter_name, *val);
-			}
-			MaterialParameter::Int2(val) => {
-				sk.material_set_int2(material, parameter_name, val.x, val.y);
-			}
-			MaterialParameter::Int3(val) => {
-				sk.material_set_int3(material, parameter_name, val.x, val.y, val.z);
-			}
-			MaterialParameter::Int4(val) => {
-				sk.material_set_int4(material, parameter_name, val.w, val.x, val.y, val.z);
-			}
-			MaterialParameter::Bool(val) => {
-				sk.material_set_bool(material, parameter_name, *val);
+				params.set_int(parameter_name, &[*val]);
 			}
 			MaterialParameter::UInt(val) => {
-				sk.material_set_uint(material, parameter_name, *val);
+				params.set_uint(parameter_name, &[*val]);
 			}
-			MaterialParameter::UInt2(val) => {
-				sk.material_set_uint2(material, parameter_name, val.x, val.y);
+			MaterialParameter::Float(val) => {
+				params.set_float(parameter_name, *val);
 			}
-			MaterialParameter::UInt3(val) => {
-				sk.material_set_uint3(material, parameter_name, val.x, val.y, val.z);
+			MaterialParameter::Vec2(val) => {
+				params.set_vec2(parameter_name, Vec2::from(*val));
 			}
-			MaterialParameter::UInt4(val) => {
-				sk.material_set_uint4(material, parameter_name, val.w, val.x, val.y, val.z);
+			MaterialParameter::Vec3(val) => {
+				params.set_vec3(parameter_name, Vec3::from(*val));
 			}
-			MaterialParameter::Matrix(val) => {
-				sk.material_set_matrix(material, parameter_name, Mat4::from(*val));
+			MaterialParameter::Color(val) => {
+				params.set_color(
+					parameter_name,
+					Color128::new(val.c.r, val.c.g, val.c.b, val.a),
+				);
 			}
 			MaterialParameter::Texture(resource) => {
-				let Some(texture_path) = resource.get_file(
-					&client.base_resource_prefixes.lock().clone(),
-					&[OsStr::new("png"), OsStr::new("jpg")],
-				) else {return};
-				if let Ok(tex) = sk.tex_create_file(texture_path, true, 0) {
-					sk.material_set_texture(material, parameter_name, &tex);
+				let Some(texture_path) =
+					get_resource_file(resource, client, &[OsStr::new("png"), OsStr::new("jpg")])
+				else {
+					return;
+				};
+				if let Ok(tex) = Tex::from_file(texture_path, true, None) {
+					params.set_texture(parameter_name, &tex);
 				}
 			}
 		}
@@ -117,245 +145,276 @@ impl MaterialParameter {
 
 pub struct ModelPart {
 	id: i32,
-	path: PathBuf,
+	path: String,
 	space: Arc<Spatial>,
 	model: Weak<Model>,
+	material: Mutex<Option<Arc<MaterialWrapper>>>,
 	pending_material_parameters: Mutex<FxHashMap<String, MaterialParameter>>,
-	pending_material_replacement: Mutex<Option<Arc<Material>>>,
+	pending_material_replacement: Mutex<Option<Arc<MaterialWrapper>>>,
+	aliases: AliasList,
 }
 impl ModelPart {
-	fn create_for_model(sk: &impl StereoKitMultiThread, model: &Arc<Model>, sk_model: &SKModel) {
-		let first_root_part = sk.model_node_get_root(sk_model);
-		let mut current_option_part = Some(first_root_part);
+	fn create_for_model(model: &Arc<Model>, sk_model: &SKModel) {
+		HOLDOUT_MATERIAL.get_or_init(|| {
+			let mut mat = Material::copy(&Material::unlit());
+			mat.transparency(Transparency::None);
+			mat.color_tint(Color128::BLACK_TRANSPARENT);
+			Arc::new(MaterialWrapper(mat))
+		});
 
-		while let Some(current_part) = &mut current_option_part {
-			ModelPart::create(sk, model, sk_model, *current_part);
-
-			if let Some(child) = sk.model_node_child(sk_model, *current_part) {
-				*current_part = child;
-			} else if let Some(sibling) = sk.model_node_sibling(sk_model, *current_part) {
-				*current_part = sibling;
-			} else {
-				while let Some(current_part) = &mut current_option_part {
-					if let Some(sibling) = sk.model_node_sibling(sk_model, *current_part) {
-						*current_part = sibling;
-						break;
-					}
-					current_option_part = sk.model_node_parent(sk_model, *current_part);
-				}
-			}
+		let nodes = sk_model.get_nodes();
+		for part in nodes.all() {
+			ModelPart::create(model, &part);
 		}
 	}
 
-	fn create(
-		sk: &impl StereoKitMultiThread,
-		model: &Arc<Model>,
-		sk_model: &SKModel,
-		id: i32,
-	) -> Option<Arc<Self>> {
-		let parent_node = sk
-			.model_node_parent(sk_model, id)
-			.and_then(|id| model.parts.get(&id));
-		let parent_part = parent_node
-			.as_ref()
-			.and_then(|node| match node.drawable.get() {
-				Some(Drawable::ModelPart(model_part)) => Some(model_part),
-				_ => None,
-			});
+	fn create(model: &Arc<Model>, part: &stereokit_rust::model::ModelNode) -> Option<Arc<Self>> {
+		let mut parts = model.parts.lock();
+		let parent_part = part
+			.get_parent()
+			.and_then(|part| parts.iter().find(|p| p.id == *part.get_id()));
 
 		let stardust_model_part = model.space.node()?;
 		let client = stardust_model_part.get_client()?;
-		let mut part_path = parent_part.map(|n| n.path.clone()).unwrap_or_default();
-		part_path.push(sk.model_node_get_name(sk_model, id)?);
-		let node = client.scenegraph.add_node(Node::create(
-			&client,
-			stardust_model_part.get_path(),
-			part_path.to_str()?,
-			false,
-		));
-		let spatial_parent = parent_node
-			.and_then(|n| n.spatial.get().cloned())
+		let mut part_path = parent_part
+			.map(|n| n.path.clone() + "/")
+			.unwrap_or_default();
+		part_path += part.get_name().unwrap();
+
+		let node = client.scenegraph.add_node(Node::generate(&client, false));
+		let spatial_parent = parent_part
+			.map(|n| n.space.clone())
 			.unwrap_or_else(|| model.space.clone());
+
+		let local_transform = unsafe { part.get_local_transform().m };
 		let space = Spatial::add_to(
 			&node,
 			Some(spatial_parent),
-			sk.model_node_get_transform_local(sk_model, id),
+			Mat4::from_cols_array(&local_transform),
 			false,
-		)
-		.ok()?;
+		);
 
-		let _ = node.spatial.get().unwrap().bounding_box_calc.set(|node| {
-			let Some(Drawable::ModelPart(model_part)) = node.drawable.get() else {return Bounds::default()};
-			let Some(sk) = SK_MULTITHREAD.get() else {return Bounds::default()};
-			let Some(model) = model_part.model.upgrade() else {return Bounds::default()};
-			let Some(sk_model) = model.sk_model.get() else {return Bounds::default()};
-			let Some(sk_mesh) = sk.model_node_get_mesh(sk_model, model_part.id) else {return Bounds::default()};
-			sk.mesh_get_bounds(sk_mesh)
+		let _ = space.bounding_box_calc.set(|node| {
+			let Ok(model_part) = node.get_aspect::<ModelPart>() else {
+				return Bounds::default();
+			};
+			let Some(model) = model_part.model.upgrade() else {
+				return Bounds::default();
+			};
+			let Some(sk_model) = model.sk_model.get() else {
+				return Bounds::default();
+			};
+			let model_nodes = sk_model.get_nodes();
+			let Some(model_node) = model_nodes.get_index(model_part.id) else {
+				return Bounds::default();
+			};
+			let Some(sk_mesh) = model_node.get_mesh() else {
+				return Bounds::default();
+			};
+			sk_mesh.get_bounds()
 		});
 
 		let model_part = Arc::new(ModelPart {
-			id,
+			id: *part.get_id(),
 			path: part_path,
 			space,
 			model: Arc::downgrade(model),
 			pending_material_parameters: Mutex::new(FxHashMap::default()),
 			pending_material_replacement: Mutex::new(None),
+			aliases: AliasList::default(),
+			material: Mutex::new(part.get_material().map(MaterialWrapper).map(Arc::new)),
 		});
-		node.add_local_signal(
-			"set_material_parameter",
-			ModelPart::set_material_parameter_flex,
-		);
-		let _ = node.drawable.set(Drawable::ModelPart(model_part.clone()));
-		model.parts.add(id, &node);
+		node.add_aspect_raw(model_part.clone());
+		parts.push(model_part.clone());
 		Some(model_part)
 	}
 
-	fn set_material_parameter_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		message: Message,
-	) -> Result<()> {
-		let Some(Drawable::ModelPart(model_part)) = node.drawable.get() else {bail!("Not a drawable??")};
-
-		let (name, value): (String, MaterialParameter) = deserialize(message.as_ref())?;
-
-		model_part
-			.pending_material_parameters
+	pub fn replace_material(&self, replacement: Arc<MaterialWrapper>) {
+		let shared_material = MATERIAL_REGISTRY.add_or_get(replacement);
+		self.pending_material_replacement
 			.lock()
-			.insert(name, value);
+			.replace(shared_material);
+	}
+	/// only to be run on the main thread
+	pub fn replace_material_now(&self, replacement: &Material) {
+		let Some(model) = self.model.upgrade() else {
+			return;
+		};
+		let Some(sk_model) = model.sk_model.get() else {
+			return;
+		};
+		let nodes = sk_model.get_nodes();
+		let Some(mut part) = nodes.get_index(self.id) else {
+			return;
+		};
+		let shared_material =
+			MATERIAL_REGISTRY.add_or_get(Arc::new(MaterialWrapper(replacement.copy())));
 
+		let mut lock = self.material.lock();
+		part.material(&shared_material.0);
+		lock.replace(shared_material);
+	}
+
+	fn update(&self) {
+		let Some(model) = self.model.upgrade() else {
+			return;
+		};
+		let Some(sk_model) = model.sk_model.get() else {
+			return;
+		};
+		let Some(node) = model.space.node() else {
+			return;
+		};
+		let nodes = sk_model.get_nodes();
+		let Some(mut part) = nodes.get_index(self.id) else {
+			return;
+		};
+		part.model_transform(Spatial::space_to_space_matrix(
+			Some(&self.space),
+			Some(&model.space),
+		));
+
+		let Some(client) = node.get_client() else {
+			return;
+		};
+
+		if let Some(material_replacement) = self.pending_material_replacement.lock().take() {
+			let mut lock = self.material.lock();
+			part.material(&material_replacement.0);
+			lock.replace(material_replacement);
+		}
+
+		'mat_params: {
+			let mut material_parameters = self.pending_material_parameters.lock();
+			if !material_parameters.is_empty() {
+				let Some(material) = part.get_material() else {
+					break 'mat_params;
+				};
+				let new_material = material.copy();
+				for (parameter_name, parameter_value) in material_parameters.drain() {
+					parameter_value.apply_to_material(&client, &new_material, &parameter_name);
+				}
+
+				let shared_material =
+					MATERIAL_REGISTRY.add_or_get(Arc::new(MaterialWrapper(new_material)));
+				let mut lock = self.material.lock();
+				part.material(&shared_material.0);
+				lock.replace(shared_material);
+			}
+		}
+	}
+}
+impl ModelPartAspect for ModelPart {
+	#[doc = "Set this model part's material to one that cuts a hole in the world. Often used for overlays/passthrough where you want to show the background through an object."]
+	fn apply_holdout_material(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let model_part = node.get_aspect::<ModelPart>()?;
+		model_part.replace_material(HOLDOUT_MATERIAL.get().unwrap().clone());
 		Ok(())
 	}
 
-	pub fn replace_material(&self, replacement: Arc<Material>) {
-		self.pending_material_replacement
+	#[doc = "Set the material parameter with `parameter_name` to `value`"]
+	fn set_material_parameter(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		parameter_name: String,
+		value: MaterialParameter,
+	) -> Result<()> {
+		let model_part = node.get_aspect::<ModelPart>()?;
+		model_part
+			.pending_material_parameters
 			.lock()
-			.replace(replacement);
-	}
+			.insert(parameter_name, value);
 
-	fn update(&self, sk: &impl StereoKitDraw) {
-		let Some(model) = self.model.upgrade() else {return};
-		let Some(sk_model) = model.sk_model.get() else {return};
-		let Some(node) = model.space.node() else {return};
-		let Some(client) = node.get_client() else {return};
-		if let Some(material_replacement) = self.pending_material_replacement.lock().take() {
-			sk.model_node_set_material(sk_model, self.id, material_replacement.as_ref().as_ref());
-		}
-
-		let mut material_parameters = self.pending_material_parameters.lock();
-		for (parameter_name, parameter_value) in material_parameters.drain() {
-			let Some(material) = sk.model_node_get_material(sk_model, self.id) else {continue};
-			let new_material = sk.material_copy(material);
-			parameter_value.apply_to_material(&client, sk, &new_material, parameter_name.as_str());
-			sk.model_node_set_material(sk_model, self.id, &new_material);
-		}
-
-		sk.model_node_set_transform_model(
-			sk_model,
-			self.id,
-			Spatial::space_to_space_matrix(Some(&self.space), Some(&model.space)),
-		);
+		Ok(())
 	}
 }
 
 pub struct Model {
-	self_ref: Weak<Model>,
-	enabled: Arc<AtomicBool>,
 	space: Arc<Spatial>,
 	_resource_id: ResourceID,
-	sk_model: OnceCell<SKModel>,
-	parts: LifeLinkedNodeMap<i32>,
+	sk_model: OnceLock<SKModel>,
+	parts: Mutex<Vec<Arc<ModelPart>>>,
 }
-unsafe impl Send for Model {}
-unsafe impl Sync for Model {}
-
 impl Model {
 	pub fn add_to(node: &Arc<Node>, resource_id: ResourceID) -> Result<Arc<Model>> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-		ensure!(
-			node.drawable.get().is_none(),
-			"Internal: Node already has a drawable attached!"
-		);
+		let pending_model_path = get_resource_file(
+			&resource_id,
+			&*node.get_client().ok_or_else(|| eyre!("Client not found"))?,
+			&[OsStr::new("glb"), OsStr::new("gltf")],
+		)
+		.ok_or_else(|| eyre!("Resource not found"))?;
 
-		let pending_model_path = resource_id
-			.get_file(
-				&node
-					.get_client()
-					.ok_or_else(|| eyre!("Client not found"))?
-					.base_resource_prefixes
-					.lock()
-					.clone(),
-				&[OsStr::new("glb"), OsStr::new("gltf")],
-			)
-			.ok_or_else(|| eyre!("Resource not found"))?;
-
-		let model = Arc::new_cyclic(|self_ref| Model {
-			self_ref: self_ref.clone(),
-			enabled: node.enabled.clone(),
-			space: node.spatial.get().unwrap().clone(),
+		let model = Arc::new(Model {
+			space: node.get_aspect::<Spatial>().unwrap().clone(),
 			_resource_id: resource_id,
-			sk_model: OnceCell::new(),
-			parts: LifeLinkedNodeMap::default(),
+			sk_model: OnceLock::new(),
+			parts: Mutex::new(Vec::default()),
 		});
 		MODEL_REGISTRY.add_raw(&model);
 
-		let sk = SK_MULTITHREAD.get().unwrap();
-		let sk_model = sk.model_copy(
-			sk.model_create_file(pending_model_path.to_str().unwrap(), None::<Shader>)?,
-		);
-		ModelPart::create_for_model(sk, &model.self_ref.upgrade().unwrap(), &sk_model);
+		// technically doing this in anything but the main thread isn't a good idea but dangit we need those model nodes ASAP
+		let sk_model = SKModel::copy(SKModel::from_file(
+			pending_model_path.to_str().unwrap(),
+			None,
+		)?);
+		ModelPart::create_for_model(&model, &sk_model);
 		let _ = model.sk_model.set(sk_model);
-		let _ = node.drawable.set(Drawable::Model(model.clone()));
+		node.add_aspect_raw(model.clone());
 		Ok(model)
 	}
 
-	fn draw(&self, sk: &impl StereoKitDraw) {
-		let Some(sk_model) = self.sk_model.get() else {return};
-		for model_node_node in self.parts.nodes() {
-			let Some(Drawable::ModelPart(model_node)) = model_node_node.drawable.get() else {continue};
-			model_node.update(sk);
+	fn draw(&self, token: &MainThreadToken) {
+		let Some(sk_model) = self.sk_model.get() else {
+			return;
+		};
+		let parts = self.parts.lock();
+		for model_node in &*parts {
+			model_node.update();
 		}
+		drop(parts);
 
-		sk.model_draw(
-			sk_model,
-			self.space.global_transform(),
-			WHITE,
-			RenderLayer::LAYER0,
-		);
+		if let Some(node) = self.space.node() {
+			if node.enabled() {
+				sk_model.draw(token, self.space.global_transform(), None, None);
+			}
+		}
+	}
+}
+// TODO: proper hread safety in stereokit_rust (probably just bind stereokit directly)
+unsafe impl Send for Model {}
+unsafe impl Sync for Model {}
+impl ModelAspect for Model {
+	#[doc = "Bind a model part to the node with the ID input."]
+	fn bind_model_part(
+		node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		part_path: String,
+	) -> Result<()> {
+		let model = node.get_aspect::<Model>()?;
+		let parts = model.parts.lock();
+		let Some(part) = parts.iter().find(|p| p.path == part_path) else {
+			let paths = parts.iter().map(|p| &p.path).collect::<Vec<_>>();
+			bail!("Couldn't find model part at path {part_path}, all available paths: {paths:?}",);
+		};
+		Alias::create_with_id(
+			&part.space.node().unwrap(),
+			&calling_client,
+			id,
+			MODEL_PART_ASPECT_ALIAS_INFO.clone(),
+			Some(&part.aliases),
+		)?;
+		Ok(())
 	}
 }
-
 impl Drop for Model {
 	fn drop(&mut self) {
 		MODEL_REGISTRY.remove(self);
 	}
 }
 
-pub fn draw_all(sk: &impl StereoKitDraw) {
+pub fn draw_all(token: &MainThreadToken) {
 	for model in MODEL_REGISTRY.get_valid_contents() {
-		if model.enabled.load(Ordering::Relaxed) {
-			model.draw(sk);
-		}
+		model.draw(token);
 	}
 }
-
-pub fn create_flex(_node: &Node, calling_client: Arc<Client>, message: Message) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateModelInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		resource: ResourceID,
-	}
-	let info: CreateModelInfo = deserialize(message.as_ref())?;
-	let node = Node::create(&calling_client, "/drawable/model", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, true);
-	let node = node.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
-	Model::add_to(&node, info.resource)?;
-	Ok(())
-}

src/nodes/drawable/shaders.rs

@@ -0,0 +1,5 @@
+// Simula shader with fancy lanzcos sampling
+pub const UNLIT_SHADER_BYTES: &[u8] = include_bytes!("assets/shaders/shader_unlit_gamma.hlsl.sks");
+
+// Simula shader with fancy lanzcos sampling
+pub const PANEL_SHADER_BYTES: &[u8] = include_bytes!("assets/shaders/shader_unlit_simula.hlsl.sks");

src/nodes/drawable/shaders/mod.rs

@@ -1,144 +0,0 @@
-#![allow(dead_code)]
-use smithay::backend::renderer::gles::{
-	ffi::{self, Gles2, FRAGMENT_SHADER, VERTEX_SHADER},
-	GlesError,
-};
-use std::mem::transmute;
-use stereokit::Shader;
-use tracing::error;
-
-// Simula shader with fancy lanzcos sampling
-pub const UNLIT_SHADER_BYTES: &[u8] = include_bytes!("shader_unlit_gamma.sks");
-
-// Simula shader with fancy lanzcos sampling
-pub const PANEL_SHADER_BYTES: &[u8] = include_bytes!("shader_unlit_simula.sks");
-
-struct FfiAssetHeader {
-	asset_type: i32,
-	asset_state: i32,
-	id: u64,
-	index: u64,
-	refs: i32,
-	debug: *mut u8,
-}
-
-struct FfiSkgShader {
-	meta: *mut u8,
-	vertex: u32,
-	pixel: u32,
-	program: u32,
-	compute: u32,
-}
-
-struct FfiShader {
-	header: FfiAssetHeader,
-	shader: FfiSkgShader,
-}
-
-unsafe fn compile_shader(
-	gl: &ffi::Gles2,
-	variant: ffi::types::GLuint,
-	src: &str,
-) -> Result<ffi::types::GLuint, GlesError> {
-	let shader = gl.CreateShader(variant);
-	if shader == 0 {
-		return Err(GlesError::CreateShaderObject);
-	}
-
-	gl.ShaderSource(
-		shader,
-		1,
-		&src.as_ptr() as *const *const u8 as *const *const ffi::types::GLchar,
-		&(src.len() as i32) as *const _,
-	);
-	gl.CompileShader(shader);
-
-	let mut status = ffi::FALSE as i32;
-	gl.GetShaderiv(shader, ffi::COMPILE_STATUS, &mut status as *mut _);
-	if status == ffi::FALSE as i32 {
-		let mut max_len = 0;
-		gl.GetShaderiv(shader, ffi::INFO_LOG_LENGTH, &mut max_len as *mut _);
-
-		let mut error = Vec::with_capacity(max_len as usize);
-		let mut len = 0;
-		gl.GetShaderInfoLog(
-			shader,
-			max_len as _,
-			&mut len as *mut _,
-			error.as_mut_ptr() as *mut _,
-		);
-		error.set_len(len as usize);
-
-		error!(
-			"[GL] {}",
-			std::str::from_utf8(&error).unwrap_or("<Error Message no utf8>")
-		);
-
-		gl.DeleteShader(shader);
-		return Err(GlesError::ShaderCompileError);
-	}
-
-	Ok(shader)
-}
-
-unsafe fn link_program(
-	gl: &ffi::Gles2,
-	vert: ffi::types::GLuint,
-	frag: ffi::types::GLuint,
-) -> Result<ffi::types::GLuint, GlesError> {
-	let program = gl.CreateProgram();
-	gl.AttachShader(program, vert);
-	gl.AttachShader(program, frag);
-	gl.LinkProgram(program);
-	// gl.DetachShader(program, vert);
-	// gl.DetachShader(program, frag);
-	// gl.DeleteShader(vert);
-	// gl.DeleteShader(frag);
-
-	let mut status = ffi::FALSE as i32;
-	gl.GetProgramiv(program, ffi::LINK_STATUS, &mut status as *mut _);
-	if status == ffi::FALSE as i32 {
-		let mut max_len = 0;
-		gl.GetProgramiv(program, ffi::INFO_LOG_LENGTH, &mut max_len as *mut _);
-
-		let mut error = Vec::with_capacity(max_len as usize);
-		let mut len = 0;
-		gl.GetProgramInfoLog(
-			program,
-			max_len as _,
-			&mut len as *mut _,
-			error.as_mut_ptr() as *mut _,
-		);
-		error.set_len(len as usize);
-
-		error!(
-			"[GL] {}",
-			std::str::from_utf8(&error).unwrap_or("<Error Message no utf8>")
-		);
-
-		gl.DeleteProgram(program);
-		return Err(GlesError::ProgramLinkError);
-	}
-
-	Ok(program)
-}
-
-pub unsafe fn shader_inject(
-	c: &Gles2,
-	sk_shader: &mut Shader,
-	vert_str: &str,
-	frag_str: &str,
-) -> Result<(), GlesError> {
-	let gl_vert = compile_shader(c, VERTEX_SHADER, vert_str)?;
-	let gl_frag = compile_shader(c, FRAGMENT_SHADER, frag_str)?;
-	let gl_prog = link_program(c, gl_vert, gl_frag)?;
-
-	let shader: *mut FfiShader = transmute(sk_shader.0.as_mut());
-	if let Some(shader) = shader.as_mut() {
-		shader.shader.vertex = gl_vert;
-		shader.shader.pixel = gl_frag;
-		shader.shader.program = gl_prog;
-	}
-
-	Ok(())
-}

src/nodes/drawable/text.rs

@@ -1,169 +1,152 @@
 use crate::{
-	core::{client::Client, destroy_queue, registry::Registry, resource::ResourceID},
-	nodes::{
-		drawable::Drawable,
-		spatial::{find_spatial_parent, parse_transform, Spatial},
-		Message, Node,
+	core::{
+		client::Client, destroy_queue, error::Result, registry::Registry,
+		resource::get_resource_file,
 	},
+	nodes::{Node, spatial::Spatial},
 };
-use color_eyre::eyre::{bail, ensure, eyre, Result};
-use glam::{vec3, Mat4, Vec2};
-use mint::Vector2;
-use once_cell::sync::OnceCell;
+use color_eyre::eyre::eyre;
+use glam::{Mat4, Vec2, vec3};
 use parking_lot::Mutex;
-use portable_atomic::{AtomicBool, Ordering};
-use prisma::{Flatten, Rgba};
-use serde::Deserialize;
-use stardust_xr::{schemas::flex::deserialize, values::Transform};
-use std::{ffi::OsStr, path::PathBuf, sync::Arc};
-use stereokit::{named_colors::WHITE, Color128, StereoKitDraw, TextAlign, TextFit, TextStyle};
+use std::{
+	ffi::OsStr,
+	path::PathBuf,
+	sync::{Arc, OnceLock},
+};
+use stereokit_rust::{
+	font::Font,
+	sk::MainThreadToken,
+	system::{TextAlign, TextFit, TextStyle as SkTextStyle},
+	util::{Color32, Color128},
+};
+
+use super::{TextAspect, TextStyle};
 
 static TEXT_REGISTRY: Registry<Text> = Registry::new();
 
-struct TextData {
-	text: String,
-	character_height: f32,
-	text_align: TextAlign,
-	bounds: Option<Vec2>,
-	fit: TextFit,
-	bounds_align: TextAlign,
-	color: Rgba<f32>,
+fn convert_align(x_align: super::XAlign, y_align: super::YAlign) -> TextAlign {
+	match (x_align, y_align) {
+		(super::XAlign::Left, super::YAlign::Top) => TextAlign::TopLeft,
+		(super::XAlign::Left, super::YAlign::Center) => TextAlign::CenterLeft,
+		(super::XAlign::Left, super::YAlign::Bottom) => TextAlign::BottomLeft,
+		(super::XAlign::Center, super::YAlign::Top) => TextAlign::Center,
+		(super::XAlign::Center, super::YAlign::Center) => TextAlign::Center,
+		(super::XAlign::Center, super::YAlign::Bottom) => TextAlign::BottomCenter,
+		(super::XAlign::Right, super::YAlign::Top) => TextAlign::TopRight,
+		(super::XAlign::Right, super::YAlign::Center) => TextAlign::CenterRight,
+		(super::XAlign::Right, super::YAlign::Bottom) => TextAlign::BottomRight,
+	}
 }
 
 pub struct Text {
-	enabled: Arc<AtomicBool>,
 	space: Arc<Spatial>,
 	font_path: Option<PathBuf>,
-	style: OnceCell<TextStyle>,
+	style: OnceLock<SkTextStyle>,
 
-	data: Mutex<TextData>,
+	text: Mutex<String>,
+	data: Mutex<TextStyle>,
 }
 impl Text {
-	#[allow(clippy::too_many_arguments)]
-	pub fn add_to(
-		node: &Arc<Node>,
-		font_resource_id: Option<ResourceID>,
-		text: String,
-		character_height: f32,
-		text_align: TextAlign,
-		bounds: Option<Vector2<f32>>,
-		fit: TextFit,
-		bounds_align: TextAlign,
-		color: Rgba<f32>,
-	) -> Result<Arc<Text>> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-		ensure!(
-			node.drawable.get().is_none(),
-			"Internal: Node already has a drawable attached!"
-		);
-
+	pub fn add_to(node: &Arc<Node>, text: String, style: TextStyle) -> Result<Arc<Text>> {
 		let client = node.get_client().ok_or_else(|| eyre!("Client not found"))?;
 		let text = TEXT_REGISTRY.add(Text {
-			enabled: node.enabled.clone(),
-			space: node.spatial.get().unwrap().clone(),
-			font_path: font_resource_id.and_then(|res| {
-				res.get_file(
-					&client.base_resource_prefixes.lock().clone(),
-					&[OsStr::new("ttf"), OsStr::new("otf")],
-				)
+			space: node.get_aspect::<Spatial>().unwrap().clone(),
+			font_path: style.font.as_ref().and_then(|res| {
+				get_resource_file(res, &client, &[OsStr::new("ttf"), OsStr::new("otf")])
 			}),
-			style: OnceCell::new(),
+			style: OnceLock::new(),
 
-			data: Mutex::new(TextData {
-				text,
-				character_height,
-				text_align,
-				bounds: bounds.map(|b| b.into()),
-				fit,
-				bounds_align,
-				color,
-			}),
+			text: Mutex::new(text),
+			data: Mutex::new(style),
 		});
-		node.add_local_signal("set_character_height", Text::set_character_height_flex);
-		node.add_local_signal("set_text", Text::set_text_flex);
-		let _ = node.drawable.set(Drawable::Text(text.clone()));
+		node.add_aspect_raw(text.clone());
 
 		Ok(text)
 	}
 
-	fn draw(&self, sk: &impl StereoKitDraw) {
-		let style = self
-			.style
-			.get_or_try_init(|| -> Result<TextStyle, color_eyre::eyre::Error> {
-				let font = self
-					.font_path
-					.as_deref()
-					.and_then(|path| sk.font_create(path).ok())
-					.unwrap_or_else(|| sk.font_find("default/font").unwrap());
-				Ok(unsafe { sk.text_make_style(font, 1.0, WHITE) })
-			});
+	fn draw(&self, token: &MainThreadToken) {
+		let style = self.style.get_or_init(|| {
+			let font = self
+				.font_path
+				.as_deref()
+				.and_then(|path| Font::from_file(path).ok())
+				.unwrap_or_default();
+			SkTextStyle::from_font(font, 1.0, Color32::WHITE)
+		});
 
-		if let Ok(style) = style {
-			let data = self.data.lock();
-			let transform = self.space.global_transform()
-				* Mat4::from_scale(vec3(
-					data.character_height,
-					data.character_height,
-					data.character_height,
-				));
-			if let Some(bounds) = data.bounds {
-				sk.text_add_in(
-					&data.text,
-					transform,
-					bounds / data.character_height,
-					data.fit,
-					*style,
-					data.bounds_align,
-					data.text_align,
-					vec3(0.0, 0.0, 0.0),
-					Color128::from([
-						data.color.red(),
-						data.color.green(),
-						data.color.blue(),
-						data.color.alpha(),
-					]),
-				);
-			} else {
-				sk.text_add_at(
-					&data.text,
-					transform,
-					*style,
-					data.bounds_align,
-					data.text_align,
-					vec3(0.0, 0.0, 0.0),
-					Color128::from([
-						data.color.red(),
-						data.color.green(),
-						data.color.blue(),
-						data.color.alpha(),
-					]),
-				);
-			}
+		let text = self.text.lock();
+		let data = self.data.lock();
+		let transform = self.space.global_transform()
+			* Mat4::from_scale(vec3(
+				data.character_height,
+				data.character_height,
+				data.character_height,
+			));
+		if let Some(bounds) = &data.bounds {
+			stereokit_rust::system::Text::add_in(
+				token,
+				&*text,
+				transform,
+				Vec2::from(bounds.bounds) / data.character_height,
+				match bounds.fit {
+					super::TextFit::Wrap => TextFit::Wrap,
+					super::TextFit::Clip => TextFit::Clip,
+					super::TextFit::Squeeze => TextFit::Squeeze,
+					super::TextFit::Exact => TextFit::Exact,
+					super::TextFit::Overflow => TextFit::Overflow,
+				},
+				Some(*style),
+				Some(Color128::new(
+					data.color.c.r,
+					data.color.c.g,
+					data.color.c.b,
+					data.color.a,
+				)),
+				data.bounds
+					.as_ref()
+					.map(|b| convert_align(b.anchor_align_x, b.anchor_align_y)),
+				Some(convert_align(data.text_align_x, data.text_align_y)),
+				None,
+				None,
+				None,
+			);
+		} else {
+			stereokit_rust::system::Text::add_at(
+				token,
+				&*text,
+				transform,
+				Some(*style),
+				Some(Color128::new(
+					data.color.c.r,
+					data.color.c.g,
+					data.color.c.b,
+					data.color.a,
+				)),
+				data.bounds
+					.as_ref()
+					.map(|b| convert_align(b.anchor_align_x, b.anchor_align_y)),
+				Some(convert_align(data.text_align_x, data.text_align_y)),
+				None,
+				None,
+				None,
+			);
 		}
 	}
-
-	pub fn set_character_height_flex(
-		node: &Node,
+}
+impl TextAspect for Text {
+	fn set_character_height(
+		node: Arc<Node>,
 		_calling_client: Arc<Client>,
-		message: Message,
+		height: f32,
 	) -> Result<()> {
-		let Some(Drawable::Text(text)) = node.drawable.get() else {bail!("Not a drawable??")};
-
-		text.data.lock().character_height = deserialize(message.as_ref())?;
+		let this_text = node.get_aspect::<Text>()?;
+		this_text.data.lock().character_height = height;
 		Ok(())
 	}
 
-	pub fn set_text_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		message: Message,
-	) -> Result<()> {
-		let Some(Drawable::Text(text)) = node.drawable.get() else {bail!("Not a drawable??")};
-
-		text.data.lock().text = deserialize(message.as_ref())?;
+	fn set_text(node: Arc<Node>, _calling_client: Arc<Client>, text: String) -> Result<()> {
+		let this_text = node.get_aspect::<Text>()?;
+		*this_text.text.lock() = text;
 		Ok(())
 	}
 }
@@ -176,47 +159,12 @@ impl Drop for Text {
 	}
 }
 
-pub fn draw_all(sk: &impl StereoKitDraw) {
+pub fn draw_all(token: &MainThreadToken) {
 	for text in TEXT_REGISTRY.get_valid_contents() {
-		if text.enabled.load(Ordering::Relaxed) {
-			text.draw(sk);
+		if let Some(node) = text.space.node() {
+			if node.enabled() {
+				text.draw(token);
+			}
 		}
 	}
 }
-
-pub fn create_flex(_node: &Node, calling_client: Arc<Client>, message: Message) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateTextInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		text: String,
-		font_resource: Option<ResourceID>,
-		character_height: f32,
-		text_align: TextAlign,
-		bounds: Option<Vector2<f32>>,
-		fit: TextFit,
-		bounds_align: TextAlign,
-		color: [f32; 4],
-	}
-	let info: CreateTextInfo = deserialize(message.as_ref())?;
-	let node = Node::create(&calling_client, "/drawable/text", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, true);
-	let color = Rgba::from_slice(&info.color);
-
-	let node = node.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
-	Text::add_to(
-		&node,
-		info.font_resource,
-		info.text,
-		info.character_height,
-		info.text_align,
-		info.bounds,
-		info.fit,
-		info.bounds_align,
-		color,
-	)?;
-	Ok(())
-}

src/nodes/fields.rs

@@ -0,0 +1,295 @@
+use super::alias::{Alias, AliasInfo};
+use super::spatial::{
+	SPATIAL_REF_GET_LOCAL_BOUNDING_BOX_SERVER_OPCODE,
+	SPATIAL_REF_GET_RELATIVE_BOUNDING_BOX_SERVER_OPCODE, SPATIAL_REF_GET_TRANSFORM_SERVER_OPCODE,
+	Spatial,
+};
+use super::{Aspect, AspectIdentifier, Node};
+use crate::core::client::Client;
+use crate::core::error::Result;
+use crate::nodes::spatial::SPATIAL_ASPECT_ALIAS_INFO;
+use crate::nodes::spatial::SPATIAL_REF_ASPECT_ALIAS_INFO;
+use crate::nodes::spatial::Transform;
+use color_eyre::eyre::OptionExt;
+use glam::{Vec3, Vec3A, Vec3Swizzles, vec2, vec3, vec3a};
+use parking_lot::Mutex;
+use rustc_hash::FxHashMap;
+use stardust_xr::values::Vector3;
+use std::sync::{Arc, LazyLock};
+
+// TODO: get SDFs working properly with non-uniform scale and so on, output distance relative to the spatial it's compared against
+
+pub static FIELD_ALIAS_INFO: LazyLock<AliasInfo> = LazyLock::new(|| AliasInfo {
+	server_methods: vec![
+		SPATIAL_REF_GET_TRANSFORM_SERVER_OPCODE,
+		SPATIAL_REF_GET_LOCAL_BOUNDING_BOX_SERVER_OPCODE,
+		SPATIAL_REF_GET_RELATIVE_BOUNDING_BOX_SERVER_OPCODE,
+		FIELD_REF_DISTANCE_SERVER_OPCODE,
+		FIELD_REF_NORMAL_SERVER_OPCODE,
+		FIELD_REF_CLOSEST_POINT_SERVER_OPCODE,
+		FIELD_REF_RAY_MARCH_SERVER_OPCODE,
+	],
+	..Default::default()
+});
+
+stardust_xr_server_codegen::codegen_field_protocol!();
+
+lazy_static::lazy_static! {
+	pub static ref EXPORTED_FIELDS: Mutex<FxHashMap<u64, Arc<Node>>> = Mutex::new(FxHashMap::default());
+}
+
+pub trait FieldTrait: Send + Sync + 'static {
+	fn spatial_ref(&self) -> &Spatial;
+
+	fn local_distance(&self, p: Vec3A) -> f32;
+	fn local_normal(&self, p: Vec3A, r: f32) -> Vec3A {
+		let d = self.local_distance(p);
+		let e = vec2(r, 0_f32);
+
+		let n = vec3a(d, d, d)
+			- vec3a(
+				self.local_distance(vec3a(e.x, e.y, e.y)),
+				self.local_distance(vec3a(e.y, e.x, e.y)),
+				self.local_distance(vec3a(e.y, e.y, e.x)),
+			);
+
+		n.normalize()
+	}
+	fn local_closest_point(&self, p: Vec3A, r: f32) -> Vec3A {
+		p - (self.local_normal(p, r) * self.local_distance(p))
+	}
+
+	fn distance(&self, reference_space: &Spatial, p: Vec3A) -> f32 {
+		let reference_to_local_space =
+			Spatial::space_to_space_matrix(Some(reference_space), Some(self.spatial_ref()));
+		let local_p = reference_to_local_space.transform_point3a(p);
+		self.local_distance(local_p)
+	}
+	fn normal(&self, reference_space: &Spatial, p: Vec3A, r: f32) -> Vec3A {
+		let reference_to_local_space =
+			Spatial::space_to_space_matrix(Some(reference_space), Some(self.spatial_ref()));
+		let local_p = reference_to_local_space.transform_point3a(p);
+		reference_to_local_space
+			.inverse()
+			.transform_vector3a(self.local_normal(local_p, r))
+	}
+	fn closest_point(&self, reference_space: &Spatial, p: Vec3A, r: f32) -> Vec3A {
+		let reference_to_local_space =
+			Spatial::space_to_space_matrix(Some(reference_space), Some(self.spatial_ref()));
+		let local_p = reference_to_local_space.transform_point3a(p);
+		reference_to_local_space
+			.inverse()
+			.transform_point3a(self.local_closest_point(local_p, r))
+	}
+
+	fn ray_march(&self, ray: Ray) -> RayMarchResult {
+		let mut result = RayMarchResult {
+			ray_origin: ray.origin.into(),
+			ray_direction: ray.direction.into(),
+			min_distance: f32::MAX,
+			deepest_point_distance: 0_f32,
+			ray_length: 0_f32,
+			ray_steps: 0,
+		};
+
+		let ray_to_field_matrix =
+			Spatial::space_to_space_matrix(Some(&ray.space), Some(self.spatial_ref()));
+		let mut ray_point = ray_to_field_matrix.transform_point3a(ray.origin.into());
+		let ray_direction = ray_to_field_matrix
+			.transform_vector3a(ray.direction.into())
+			.normalize();
+
+		while result.ray_steps < MAX_RAY_STEPS && result.ray_length < MAX_RAY_LENGTH {
+			let distance = self.local_distance(ray_point);
+			let march_distance = distance.clamp(MIN_RAY_MARCH, MAX_RAY_MARCH);
+
+			result.ray_length += march_distance;
+			ray_point += ray_direction * march_distance;
+
+			if result.min_distance > distance {
+				result.deepest_point_distance = result.ray_length;
+				result.min_distance = distance;
+			}
+
+			result.ray_steps += 1;
+		}
+
+		result
+	}
+}
+
+pub struct Ray {
+	pub origin: Vec3,
+	pub direction: Vec3,
+	pub space: Arc<Spatial>,
+}
+
+// const MIN_RAY_STEPS: u32 = 0;
+const MAX_RAY_STEPS: u32 = 1000;
+
+const MIN_RAY_MARCH: f32 = 0.001_f32;
+const MAX_RAY_MARCH: f32 = f32::MAX;
+
+// const MIN_RAY_LENGTH: f32 = 0_f32;
+const MAX_RAY_LENGTH: f32 = 1000_f32;
+
+pub struct Field {
+	pub spatial: Arc<Spatial>,
+	pub shape: Mutex<Shape>,
+}
+impl Field {
+	pub fn add_to(node: &Arc<Node>, shape: Shape) -> Result<Arc<Field>> {
+		let spatial = node.get_aspect::<Spatial>()?;
+		let field = Field {
+			spatial,
+			shape: Mutex::new(shape),
+		};
+		let field = node.add_aspect(field);
+		node.add_aspect(FieldRef);
+		Ok(field)
+	}
+}
+impl AspectIdentifier for Field {
+	impl_aspect_for_field_aspect_id! {}
+}
+impl Aspect for Field {
+	impl_aspect_for_field_aspect! {}
+}
+impl FieldAspect for Field {
+	fn set_shape(node: Arc<Node>, _calling_client: Arc<Client>, shape: Shape) -> Result<()> {
+		let field = node.get_aspect::<Field>()?;
+		*field.shape.lock() = shape;
+		Ok(())
+	}
+
+	async fn export_field(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<u64> {
+		let id = rand::random();
+		EXPORTED_FIELDS.lock().insert(id, node);
+		Ok(id)
+	}
+}
+impl FieldTrait for Field {
+	fn spatial_ref(&self) -> &Spatial {
+		&self.spatial
+	}
+	fn local_distance(&self, p: Vec3A) -> f32 {
+		match self.shape.lock().clone() {
+			Shape::Box(size) => {
+				let q = vec3(
+					p.x.abs() - (size.x * 0.5_f32),
+					p.y.abs() - (size.y * 0.5_f32),
+					p.z.abs() - (size.z * 0.5_f32),
+				);
+				let v = vec3a(q.x.max(0_f32), q.y.max(0_f32), q.z.max(0_f32));
+				v.length() + q.x.max(q.y.max(q.z)).min(0_f32)
+			}
+			Shape::Cylinder(CylinderShape { length, radius }) => {
+				let d = vec2(p.xz().length().abs() - radius, p.y.abs() - (length * 0.5));
+				d.x.max(d.y).min(0.0) + d.max(vec2(0.0, 0.0)).length()
+			}
+			Shape::Sphere(radius) => p.length() - radius,
+			Shape::Torus(TorusShape { radius_a, radius_b }) => {
+				let q = vec2(p.xz().length() - radius_a, p.y);
+				q.length() - radius_b
+			}
+		}
+	}
+}
+
+pub struct FieldRef;
+impl AspectIdentifier for FieldRef {
+	impl_aspect_for_field_ref_aspect_id! {}
+}
+impl Aspect for FieldRef {
+	impl_aspect_for_field_ref_aspect! {}
+}
+impl FieldRefAspect for FieldRef {
+	async fn distance(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		space: Arc<Node>,
+		point: Vector3<f32>,
+	) -> Result<f32> {
+		let reference_space = space.get_aspect::<Spatial>()?;
+		let field = node.get_aspect::<Field>()?;
+		Ok(field.distance(&reference_space, point.into()))
+	}
+
+	async fn normal(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		space: Arc<Node>,
+		point: Vector3<f32>,
+	) -> Result<Vector3<f32>> {
+		let reference_space = space.get_aspect::<Spatial>()?;
+		let field = node.get_aspect::<Field>()?;
+		Ok(field.normal(&reference_space, point.into(), 0.0001).into())
+	}
+
+	async fn closest_point(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		space: Arc<Node>,
+		point: Vector3<f32>,
+	) -> Result<Vector3<f32>> {
+		let reference_space = space.get_aspect::<Spatial>()?;
+		let field = node.get_aspect::<Field>()?;
+		Ok(field
+			.closest_point(&reference_space, point.into(), 0.0001)
+			.into())
+	}
+
+	async fn ray_march(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		space: Arc<Node>,
+		ray_origin: Vector3<f32>,
+		ray_direction: Vector3<f32>,
+	) -> Result<RayMarchResult> {
+		let space = space.get_aspect::<Spatial>()?;
+		let field = node.get_aspect::<Field>()?;
+		Ok(field.ray_march(Ray {
+			origin: ray_origin.into(),
+			direction: ray_direction.into(),
+			space,
+		}))
+	}
+}
+
+impl InterfaceAspect for Interface {
+	async fn import_field_ref(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		uid: u64,
+	) -> Result<Arc<Node>> {
+		Ok(EXPORTED_FIELDS
+			.lock()
+			.get(&uid)
+			.map(|s| {
+				Alias::create(
+					s,
+					&calling_client,
+					FIELD_REF_ASPECT_ALIAS_INFO.clone(),
+					None,
+				)
+				.unwrap()
+			})
+			.ok_or_eyre("Couldn't find spatial with that ID")?)
+	}
+
+	fn create_field(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		shape: Shape,
+	) -> Result<()> {
+		let transform = transform.to_mat4(true, true, false);
+		let parent = parent.get_aspect::<Spatial>()?;
+		let node = Node::from_id(&calling_client, id, true).add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		Field::add_to(&node, shape)?;
+		Ok(())
+	}
+}

src/nodes/fields/box.rs

@@ -1,92 +0,0 @@
-use super::{Field, FieldTrait, Node};
-use crate::core::client::Client;
-use crate::nodes::spatial::{find_spatial_parent, parse_transform, Spatial};
-use crate::nodes::Message;
-use color_eyre::eyre::{ensure, Result};
-use glam::{vec3, vec3a, Vec3, Vec3A};
-use mint::Vector3;
-use parking_lot::Mutex;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::deserialize;
-use stardust_xr::values::Transform;
-use std::sync::Arc;
-
-pub struct BoxField {
-	space: Arc<Spatial>,
-	size: Mutex<Vec3>,
-}
-
-impl BoxField {
-	pub fn add_to(node: &Arc<Node>, size: Vector3<f32>) -> Result<Arc<Field>> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-		ensure!(
-			node.field.get().is_none(),
-			"Internal: Node already has a field attached!"
-		);
-		let box_field = BoxField {
-			space: node.spatial.get().unwrap().clone(),
-			size: Mutex::new(size.into()),
-		};
-		box_field.add_field_methods(node);
-		node.add_local_signal("set_size", BoxField::set_size_flex);
-		let field = Arc::new(Field::Box(box_field));
-		let _ = node.field.set(field.clone());
-		Ok(field)
-	}
-
-	pub fn set_size(&self, size: Vector3<f32>) {
-		*self.size.lock() = size.into();
-	}
-
-	pub fn set_size_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		message: Message,
-	) -> Result<()> {
-		let Field::Box(box_field) = node.field.get().unwrap().as_ref() else { return Ok(()) };
-		box_field.set_size(deserialize(message.as_ref())?);
-
-		Ok(())
-	}
-}
-
-impl FieldTrait for BoxField {
-	fn local_distance(&self, p: Vec3A) -> f32 {
-		let size = self.size.lock();
-		let q = vec3(
-			p.x.abs() - (size.x * 0.5_f32),
-			p.y.abs() - (size.y * 0.5_f32),
-			p.z.abs() - (size.z * 0.5_f32),
-		);
-		let v = vec3a(q.x.max(0_f32), q.y.max(0_f32), q.z.max(0_f32));
-		v.length() + q.x.max(q.y.max(q.z)).min(0_f32)
-	}
-	fn spatial_ref(&self) -> &Spatial {
-		self.space.as_ref()
-	}
-}
-
-pub fn create_box_field_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	message: Message,
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateFieldInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		size: Vector3<f32>,
-	}
-	let info: CreateFieldInfo = deserialize(message.as_ref())?;
-	let node = Node::create(&calling_client, "/field", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false);
-	let node = node.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
-	BoxField::add_to(&node, info.size)?;
-	Ok(())
-}

src/nodes/fields/cylinder.rs

@@ -1,93 +0,0 @@
-use super::{Field, FieldTrait, Node};
-use crate::core::client::Client;
-use crate::nodes::spatial::{find_spatial_parent, parse_transform, Spatial};
-use crate::nodes::Message;
-use color_eyre::eyre::{ensure, Result};
-use glam::{swizzles::*, vec2, Vec3A};
-use portable_atomic::AtomicF32;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::deserialize;
-use stardust_xr::values::Transform;
-
-use std::sync::atomic::Ordering;
-use std::sync::Arc;
-
-pub struct CylinderField {
-	space: Arc<Spatial>,
-	length: AtomicF32,
-	radius: AtomicF32,
-}
-
-impl CylinderField {
-	pub fn add_to(node: &Arc<Node>, length: f32, radius: f32) -> Result<()> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-		ensure!(
-			node.field.get().is_none(),
-			"Internal: Node already has a field attached!"
-		);
-		let cylinder_field = CylinderField {
-			space: node.spatial.get().unwrap().clone(),
-			length: AtomicF32::new(length.abs()),
-			radius: AtomicF32::new(radius.abs()),
-		};
-		cylinder_field.add_field_methods(node);
-		node.add_local_signal("set_size", CylinderField::set_size_flex);
-		let _ = node.field.set(Arc::new(Field::Cylinder(cylinder_field)));
-		Ok(())
-	}
-
-	pub fn set_size(&self, length: f32, radius: f32) {
-		self.length.store(length.abs(), Ordering::Relaxed);
-		self.radius.store(radius.abs(), Ordering::Relaxed);
-	}
-
-	pub fn set_size_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		message: Message,
-	) -> Result<()> {
-		let Field::Cylinder(cylinder_field) = node.field.get().unwrap().as_ref() else { return Ok(()) };
-		let (length, radius) = deserialize(message.as_ref())?;
-		cylinder_field.set_size(length, radius);
-		Ok(())
-	}
-}
-
-impl FieldTrait for CylinderField {
-	fn local_distance(&self, p: Vec3A) -> f32 {
-		let radius = self.radius.load(Ordering::Relaxed);
-		let length = self.length.load(Ordering::Relaxed);
-		let d = vec2(p.xy().length().abs() - radius, p.z.abs() - (length * 0.5));
-
-		d.x.max(d.y).min(0.0) + d.max(vec2(0.0, 0.0)).length()
-	}
-	fn spatial_ref(&self) -> &Spatial {
-		self.space.as_ref()
-	}
-}
-
-pub fn create_cylinder_field_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	message: Message,
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateFieldInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		length: f32,
-		radius: f32,
-	}
-	let info: CreateFieldInfo = deserialize(message.as_ref())?;
-	let node = Node::create(&calling_client, "/field", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false);
-	let node = node.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
-	CylinderField::add_to(&node, info.length, info.radius)?;
-	Ok(())
-}

src/nodes/fields/mod.rs

@@ -1,264 +0,0 @@
-pub mod r#box;
-mod cylinder;
-mod sphere;
-mod torus;
-
-use self::cylinder::{create_cylinder_field_flex, CylinderField};
-use self::r#box::{create_box_field_flex, BoxField};
-use self::sphere::{create_sphere_field_flex, SphereField};
-use self::torus::{create_torus_field_flex, TorusField};
-
-use super::alias::AliasInfo;
-use super::spatial::Spatial;
-use super::{Message, Node};
-use crate::core::client::Client;
-use crate::core::scenegraph::MethodResponseSender;
-use crate::nodes::spatial::find_reference_space;
-use color_eyre::eyre::Result;
-use glam::{vec2, vec3a, Vec3, Vec3A};
-use mint::Vector3;
-use once_cell::sync::Lazy;
-use serde::{Deserialize, Serialize};
-use stardust_xr::schemas::flex::{deserialize, serialize};
-
-use std::ops::Deref;
-use std::sync::Arc;
-
-pub static FIELD_ALIAS_INFO: Lazy<AliasInfo> = Lazy::new(|| AliasInfo {
-	server_methods: vec!["distance", "normal", "closest_point", "ray_march"],
-	..Default::default()
-});
-
-pub trait FieldTrait {
-	fn add_field_methods(&self, node: &Arc<Node>) {
-		node.add_local_method("distance", field_distance_flex);
-		node.add_local_method("normal", field_normal_flex);
-		node.add_local_method("closest_point", field_closest_point_flex);
-		node.add_local_method("ray_march", field_ray_march_flex);
-	}
-	fn spatial_ref(&self) -> &Spatial;
-
-	fn local_distance(&self, p: Vec3A) -> f32;
-	fn local_normal(&self, p: Vec3A, r: f32) -> Vec3A {
-		let d = self.local_distance(p);
-		let e = vec2(r, 0_f32);
-
-		let n = vec3a(d, d, d)
-			- vec3a(
-				self.local_distance(vec3a(e.x, e.y, e.y)),
-				self.local_distance(vec3a(e.y, e.x, e.y)),
-				self.local_distance(vec3a(e.y, e.y, e.x)),
-			);
-
-		n.normalize()
-	}
-	fn local_closest_point(&self, p: Vec3A, r: f32) -> Vec3A {
-		p - (self.local_normal(p, r) * self.local_distance(p))
-	}
-
-	fn distance(&self, reference_space: &Spatial, p: Vec3A) -> f32 {
-		let reference_to_local_space =
-			Spatial::space_to_space_matrix(Some(reference_space), Some(self.spatial_ref()));
-		let local_p = reference_to_local_space.transform_point3a(p);
-		self.local_distance(local_p)
-	}
-	fn normal(&self, reference_space: &Spatial, p: Vec3A, r: f32) -> Vec3A {
-		let reference_to_local_space =
-			Spatial::space_to_space_matrix(Some(reference_space), Some(self.spatial_ref()));
-		let local_p = reference_to_local_space.transform_point3a(p);
-		reference_to_local_space
-			.inverse()
-			.transform_vector3a(self.local_normal(local_p, r))
-	}
-	fn closest_point(&self, reference_space: &Spatial, p: Vec3A, r: f32) -> Vec3A {
-		let reference_to_local_space =
-			Spatial::space_to_space_matrix(Some(reference_space), Some(self.spatial_ref()));
-		let local_p = reference_to_local_space.transform_point3a(p);
-		reference_to_local_space
-			.inverse()
-			.transform_point3a(self.local_closest_point(local_p, r))
-	}
-
-	fn ray_march(&self, ray: Ray) -> RayMarchResult {
-		let mut result = RayMarchResult {
-			min_distance: f32::MAX,
-			deepest_point_distance: 0_f32,
-			ray_length: 0_f32,
-			ray_steps: 0,
-		};
-
-		let ray_to_field_matrix =
-			Spatial::space_to_space_matrix(Some(&ray.space), Some(self.spatial_ref()));
-		let mut ray_point = ray_to_field_matrix.transform_point3a(ray.origin.into());
-		let ray_direction = ray_to_field_matrix.transform_vector3a(ray.direction.into());
-
-		while result.ray_steps < MAX_RAY_STEPS && result.ray_length < MAX_RAY_LENGTH {
-			let distance = self.local_distance(ray_point);
-			let march_distance = distance.clamp(MIN_RAY_MARCH, MAX_RAY_MARCH);
-
-			result.ray_length += march_distance;
-			ray_point += ray_direction * march_distance;
-
-			if result.min_distance > distance {
-				result.deepest_point_distance = result.ray_length;
-				result.min_distance = distance;
-			}
-
-			result.ray_steps += 1;
-		}
-
-		result
-	}
-}
-
-pub struct Ray {
-	pub origin: Vec3,
-	pub direction: Vec3,
-	pub space: Arc<Spatial>,
-}
-
-#[derive(Debug, Serialize)]
-pub struct RayMarchResult {
-	pub min_distance: f32,
-	pub deepest_point_distance: f32,
-	pub ray_length: f32,
-	pub ray_steps: u32,
-}
-
-// const MIN_RAY_STEPS: u32 = 0;
-const MAX_RAY_STEPS: u32 = 1000;
-
-const MIN_RAY_MARCH: f32 = 0.001_f32;
-const MAX_RAY_MARCH: f32 = f32::MAX;
-
-// const MIN_RAY_LENGTH: f32 = 0_f32;
-const MAX_RAY_LENGTH: f32 = 1000_f32;
-
-fn field_distance_flex(
-	node: &Node,
-	calling_client: Arc<Client>,
-	message: Message,
-	response: MethodResponseSender,
-) {
-	response.wrap_sync(move || {
-		#[derive(Deserialize)]
-		struct FieldInfoArgs<'a> {
-			reference_space_path: &'a str,
-			point: Vector3<f32>,
-		}
-		let args: FieldInfoArgs = deserialize(message.as_ref())?;
-		let reference_space = find_reference_space(&calling_client, args.reference_space_path)?;
-
-		let distance = node
-			.field
-			.get()
-			.unwrap()
-			.distance(reference_space.as_ref(), args.point.into());
-		Ok(serialize(distance)?.into())
-	});
-}
-fn field_normal_flex(
-	node: &Node,
-	calling_client: Arc<Client>,
-	message: Message,
-	response: MethodResponseSender,
-) {
-	response.wrap_sync(move || {
-		#[derive(Deserialize)]
-		struct FieldInfoArgs<'a> {
-			reference_space_path: &'a str,
-			point: Vector3<f32>,
-		}
-		let args: FieldInfoArgs = deserialize(message.as_ref())?;
-		let reference_space = find_reference_space(&calling_client, args.reference_space_path)?;
-
-		let normal = node.field.get().as_ref().unwrap().normal(
-			reference_space.as_ref(),
-			args.point.into(),
-			0.001,
-		);
-		Ok(serialize(mint::Vector3::from(normal))?.into())
-	});
-}
-fn field_closest_point_flex(
-	node: &Node,
-	calling_client: Arc<Client>,
-	message: Message,
-	response: MethodResponseSender,
-) {
-	response.wrap_sync(move || {
-		#[derive(Deserialize)]
-		struct FieldInfoArgs<'a> {
-			reference_space_path: &'a str,
-			point: Vector3<f32>,
-		}
-		let args: FieldInfoArgs = deserialize(message.as_ref())?;
-		let reference_space = find_reference_space(&calling_client, args.reference_space_path)?;
-
-		let closest_point = node.field.get().as_ref().unwrap().closest_point(
-			reference_space.as_ref(),
-			args.point.into(),
-			0.001,
-		);
-		Ok(serialize(mint::Vector3::from(closest_point))?.into())
-	});
-}
-fn field_ray_march_flex(
-	node: &Node,
-	calling_client: Arc<Client>,
-	message: Message,
-	response: MethodResponseSender,
-) {
-	response.wrap_sync(move || {
-		#[derive(Deserialize)]
-		struct FieldInfoArgs<'a> {
-			reference_space_path: &'a str,
-			ray_origin: Vector3<f32>,
-			ray_direction: Vector3<f32>,
-		}
-		let args: FieldInfoArgs = deserialize(message.as_ref())?;
-		let reference_space = find_reference_space(&calling_client, args.reference_space_path)?;
-
-		let ray_march_result = node.field.get().unwrap().ray_march(Ray {
-			origin: args.ray_origin.into(),
-			direction: args.ray_direction.into(),
-			space: reference_space,
-		});
-		Ok(serialize(ray_march_result)?.into())
-	});
-}
-
-pub enum Field {
-	Box(BoxField),
-	Cylinder(CylinderField),
-	Sphere(SphereField),
-	Torus(TorusField),
-}
-
-impl Deref for Field {
-	type Target = dyn FieldTrait;
-	fn deref(&self) -> &Self::Target {
-		match self {
-			Field::Box(field) => field,
-			Field::Cylinder(field) => field,
-			Field::Sphere(field) => field,
-			Field::Torus(field) => field,
-		}
-	}
-}
-
-pub fn create_interface(client: &Arc<Client>) -> Result<()> {
-	let node = Node::create(client, "", "field", false);
-	node.add_local_signal("create_box_field", create_box_field_flex);
-	node.add_local_signal("create_cylinder_field", create_cylinder_field_flex);
-	node.add_local_signal("create_sphere_field", create_sphere_field_flex);
-	node.add_local_signal("create_torus_field", create_torus_field_flex);
-	node.add_to_scenegraph().map(|_| ())
-}
-
-pub fn find_field(client: &Client, path: &str) -> Result<Arc<Field>> {
-	client
-		.get_node("Field", path)?
-		.get_aspect("Field", "info", |n| &n.field)
-		.cloned()
-}

src/nodes/fields/sphere.rs

@@ -1,93 +0,0 @@
-use super::{Field, FieldTrait, Node};
-use crate::core::client::Client;
-use crate::nodes::spatial::{find_spatial_parent, Spatial};
-use crate::nodes::Message;
-use color_eyre::eyre::{ensure, Result};
-use glam::{Mat4, Vec3A};
-use mint::Vector3;
-use portable_atomic::AtomicF32;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::deserialize;
-use std::sync::atomic::Ordering;
-use std::sync::Arc;
-
-pub struct SphereField {
-	space: Arc<Spatial>,
-	radius: AtomicF32,
-}
-
-impl SphereField {
-	pub fn add_to(node: &Arc<Node>, radius: f32) -> Result<()> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-		ensure!(
-			node.field.get().is_none(),
-			"Internal: Node already has a field attached!"
-		);
-		let sphere_field = SphereField {
-			space: node.spatial.get().unwrap().clone(),
-			radius: AtomicF32::new(radius),
-		};
-		sphere_field.add_field_methods(node);
-		node.add_local_signal("set_radius", SphereField::set_radius_flex);
-		let _ = node.field.set(Arc::new(Field::Sphere(sphere_field)));
-		Ok(())
-	}
-
-	pub fn set_radius(&self, radius: f32) {
-		self.radius.store(radius, Ordering::Relaxed);
-	}
-
-	pub fn set_radius_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		message: Message,
-	) -> Result<()> {
-		let Field::Sphere(sphere_field) = node.field.get().unwrap().as_ref() else { return Ok(()) };
-		sphere_field.set_radius(deserialize(message.as_ref())?);
-		Ok(())
-	}
-}
-
-impl FieldTrait for SphereField {
-	fn local_distance(&self, p: Vec3A) -> f32 {
-		p.length() - self.radius.load(Ordering::Relaxed)
-	}
-	fn local_normal(&self, p: Vec3A, _r: f32) -> Vec3A {
-		-p.normalize()
-	}
-	fn local_closest_point(&self, p: Vec3A, _r: f32) -> Vec3A {
-		p.normalize() * self.radius.load(Ordering::Relaxed)
-	}
-	fn spatial_ref(&self) -> &Spatial {
-		self.space.as_ref()
-	}
-}
-
-pub fn create_sphere_field_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	message: Message,
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateFieldInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		origin: Option<Vector3<f32>>,
-		radius: f32,
-	}
-	let info: CreateFieldInfo = deserialize(message.as_ref())?;
-	let node = Node::create(&calling_client, "/field", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = Mat4::from_translation(
-		info.origin
-			.unwrap_or_else(|| Vector3::from([0.0; 3]))
-			.into(),
-	);
-	let node = node.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
-	SphereField::add_to(&node, info.radius)?;
-	Ok(())
-}

src/nodes/fields/torus.rs

@@ -1,93 +0,0 @@
-use super::{Field, FieldTrait, Node};
-use crate::core::client::Client;
-use crate::nodes::spatial::{find_spatial_parent, parse_transform, Spatial};
-use crate::nodes::Message;
-use color_eyre::eyre::{ensure, Result};
-use glam::{swizzles::*, vec2, Vec3A};
-use portable_atomic::AtomicF32;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::deserialize;
-use stardust_xr::values::Transform;
-
-use std::sync::atomic::Ordering;
-use std::sync::Arc;
-
-pub struct TorusField {
-	space: Arc<Spatial>,
-	radius_a: AtomicF32,
-	radius_b: AtomicF32,
-}
-
-impl TorusField {
-	pub fn add_to(node: &Arc<Node>, radius_a: f32, radius_b: f32) -> Result<()> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-		ensure!(
-			node.field.get().is_none(),
-			"Internal: Node already has a field attached!"
-		);
-		let torus_field = TorusField {
-			space: node.spatial.get().unwrap().clone(),
-			radius_a: AtomicF32::new(radius_a.abs()),
-			radius_b: AtomicF32::new(radius_b.abs()),
-		};
-		torus_field.add_field_methods(node);
-		node.add_local_signal("set_size", TorusField::set_size_flex);
-		let _ = node.field.set(Arc::new(Field::Torus(torus_field)));
-		Ok(())
-	}
-
-	pub fn set_size(&self, radius_a: f32, radius_b: f32) {
-		self.radius_a.store(radius_a.abs(), Ordering::Relaxed);
-		self.radius_b.store(radius_b.abs(), Ordering::Relaxed);
-	}
-
-	pub fn set_size_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		message: Message,
-	) -> Result<()> {
-		let Field::Torus(torus_field) = node.field.get().unwrap().as_ref() else { return Ok(()) };
-		let (radius_a, radius_b) = deserialize(message.as_ref())?;
-		torus_field.set_size(radius_a, radius_b);
-
-		Ok(())
-	}
-}
-
-impl FieldTrait for TorusField {
-	fn local_distance(&self, p: Vec3A) -> f32 {
-		let radius_a = self.radius_a.load(Ordering::Relaxed);
-		let radius_b = self.radius_b.load(Ordering::Relaxed);
-		let q = vec2(p.xz().length() - radius_a, p.y);
-		q.length() - radius_b
-	}
-	fn spatial_ref(&self) -> &Spatial {
-		self.space.as_ref()
-	}
-}
-
-pub fn create_torus_field_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	message: Message,
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateFieldInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		radius_a: f32,
-		radius_b: f32,
-	}
-	let info: CreateFieldInfo = deserialize(message.as_ref())?;
-	let node = Node::create(&calling_client, "/field", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false);
-	let node = node.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
-	TorusField::add_to(&node, info.radius_a, info.radius_b)?;
-	Ok(())
-}

src/nodes/hmd.rs

@@ -1,46 +0,0 @@
-use super::{alias::Alias, spatial::Spatial, Node};
-use crate::{
-	core::client::{Client, INTERNAL_CLIENT},
-	nodes::alias::AliasInfo,
-};
-use color_eyre::eyre::Result;
-use glam::{vec3, Mat4};
-use std::sync::Arc;
-use stereokit::StereoKitMultiThread;
-
-lazy_static::lazy_static! {
-	static ref HMD: Arc<Node> = create();
-}
-
-fn create() -> Arc<Node> {
-	let node = Arc::new(Node::create(&INTERNAL_CLIENT, "", "hmd", false));
-	Spatial::add_to(&node, None, Mat4::IDENTITY, false).expect("Unable to make spatial for HMD");
-
-	node
-}
-
-pub fn frame(sk: &impl StereoKitMultiThread) {
-	let spatial = HMD
-		.spatial
-		.get()
-		.expect("Unable to get spatial to update HMD");
-	let hmd_pose = sk.input_head();
-	*spatial.transform.lock() = Mat4::from_scale_rotation_translation(
-		vec3(1.0, 1.0, 1.0),
-		hmd_pose.orientation.into(),
-		hmd_pose.position.into(),
-	);
-}
-
-pub fn make_alias(client: &Arc<Client>) -> Result<Arc<Node>> {
-	Alias::create(
-		client,
-		"",
-		"hmd",
-		&HMD,
-		AliasInfo {
-			server_signals: vec!["get_bounds", "get_transform"],
-			..Default::default()
-		},
-	)
-}

src/nodes/input/hand.rs

@@ -1,51 +1,89 @@
-use crate::nodes::fields::Field;
+use super::{Finger, Hand, InputDataTrait, InputHandler, InputMethod, Joint, Thumb};
+use crate::nodes::fields::{Field, FieldTrait};
 use crate::nodes::spatial::Spatial;
-use glam::{vec3a, Mat4};
-use stardust_xr::schemas::flat::{Hand as FlatHand, InputDataType, Joint};
+use glam::{Mat4, Quat, vec3a};
 use std::sync::Arc;
 
-use super::{DistanceLink, InputSpecialization};
-
-#[derive(Debug, Default)]
-pub struct Hand {
-	pub base: FlatHand,
-}
-impl InputSpecialization for Hand {
-	fn compare_distance(&self, space: &Arc<Spatial>, field: &Field) -> f32 {
-		self.true_distance(space, field).abs()
+impl Default for Joint {
+	fn default() -> Self {
+		Joint {
+			position: [0.0; 3].into(),
+			rotation: Quat::IDENTITY.into(),
+			radius: 0.0,
+			distance: 0.0,
+		}
 	}
-	fn true_distance(&self, space: &Arc<Spatial>, field: &Field) -> f32 {
+}
+#[allow(clippy::derivable_impls)]
+impl Default for Finger {
+	fn default() -> Self {
+		Finger {
+			tip: Default::default(),
+			distal: Default::default(),
+			intermediate: Default::default(),
+			proximal: Default::default(),
+			metacarpal: Default::default(),
+		}
+	}
+}
+#[allow(clippy::derivable_impls)]
+impl Default for Thumb {
+	fn default() -> Self {
+		Thumb {
+			tip: Default::default(),
+			distal: Default::default(),
+			proximal: Default::default(),
+			metacarpal: Default::default(),
+		}
+	}
+}
+#[allow(clippy::derivable_impls)]
+impl Default for Hand {
+	fn default() -> Self {
+		Hand {
+			right: Default::default(),
+			thumb: Default::default(),
+			index: Default::default(),
+			middle: Default::default(),
+			ring: Default::default(),
+			little: Default::default(),
+			palm: Default::default(),
+			wrist: Default::default(),
+			elbow: Default::default(),
+		}
+	}
+}
+
+impl InputDataTrait for Hand {
+	fn distance(&self, space: &Arc<Spatial>, field: &Field) -> f32 {
 		let mut min_distance = f32::MAX;
 
 		for tip in [
-			&self.base.thumb.tip.position,
-			&self.base.index.tip.position,
-			&self.base.middle.tip.position,
-			&self.base.ring.tip.position,
-			&self.base.little.tip.position,
+			&self.thumb.tip.position,
+			&self.index.tip.position,
+			&self.middle.tip.position,
+			&self.ring.tip.position,
+			&self.little.tip.position,
 		] {
 			min_distance = min_distance.min(field.distance(space, vec3a(tip.x, tip.y, tip.z)));
 		}
 
 		min_distance
 	}
-	fn serialize(
-		&self,
-		distance_link: &DistanceLink,
-		local_to_handler_matrix: Mat4,
-	) -> InputDataType {
-		let mut hand = self.base;
+	fn transform(&mut self, method: &InputMethod, handler: &InputHandler) {
+		let local_to_handler_matrix =
+			Spatial::space_to_space_matrix(Some(&method.spatial), Some(&handler.spatial));
 		let mut joints: Vec<&mut Joint> = Vec::new();
 
-		joints.extend([&mut hand.palm, &mut hand.wrist]);
-		if let Some(elbow) = &mut hand.elbow {
+		joints.extend([&mut self.palm, &mut self.wrist]);
+		if let Some(elbow) = &mut self.elbow {
 			joints.push(elbow);
 		}
 		for finger in [
-			&mut hand.index,
-			&mut hand.middle,
-			&mut hand.ring,
-			&mut hand.little,
+			&mut self.index,
+			&mut self.middle,
+			&mut self.ring,
+			&mut self.little,
 		] {
 			joints.extend([
 				&mut finger.tip,
@@ -56,10 +94,10 @@ impl InputSpecialization for Hand {
 			]);
 		}
 		joints.extend([
-			&mut hand.thumb.tip,
-			&mut hand.thumb.distal,
-			&mut hand.thumb.proximal,
-			&mut hand.thumb.metacarpal,
+			&mut self.thumb.tip,
+			&mut self.thumb.distal,
+			&mut self.thumb.proximal,
+			&mut self.thumb.metacarpal,
 		]);
 
 		for joint in joints {
@@ -68,12 +106,7 @@ impl InputSpecialization for Hand {
 			let (_, rotation, position) = joint_matrix.to_scale_rotation_translation();
 			joint.position = position.into();
 			joint.rotation = rotation.into();
-			joint.distance = distance_link
-				.handler
-				.field
-				.distance(&distance_link.handler.spatial, position.into());
+			joint.distance = handler.field.distance(&handler.spatial, position.into());
 		}
-
-		InputDataType::Hand(Box::new(hand))
 	}
 }

src/nodes/input/handler.rs

@@ -0,0 +1,39 @@
+use super::{INPUT_HANDLER_REGISTRY, INPUT_METHOD_REGISTRY, InputHandlerAspect};
+use crate::nodes::{Node, alias::AliasList, fields::Field, spatial::Spatial};
+use color_eyre::eyre::Result;
+use std::sync::Arc;
+
+pub struct InputHandler {
+	pub spatial: Arc<Spatial>,
+	pub field: Arc<Field>,
+	pub(super) method_aliases: AliasList,
+}
+impl InputHandler {
+	pub fn add_to(node: &Arc<Node>, field: &Arc<Field>) -> Result<()> {
+		let handler = InputHandler {
+			spatial: node.get_aspect::<Spatial>().unwrap().clone(),
+			field: field.clone(),
+			method_aliases: AliasList::default(),
+		};
+		for method in INPUT_METHOD_REGISTRY.get_valid_contents() {
+			method.handle_new_handler(&handler);
+		}
+		let handler = INPUT_HANDLER_REGISTRY.add(handler);
+		node.add_aspect_raw(handler);
+		Ok(())
+	}
+}
+impl InputHandlerAspect for InputHandler {}
+impl PartialEq for InputHandler {
+	fn eq(&self, other: &Self) -> bool {
+		self.spatial == other.spatial
+	}
+}
+impl Drop for InputHandler {
+	fn drop(&mut self) {
+		INPUT_HANDLER_REGISTRY.remove(self);
+		for method in INPUT_METHOD_REGISTRY.get_valid_contents() {
+			method.handle_drop_handler(self);
+		}
+	}
+}

src/nodes/input/method.rs

@@ -0,0 +1,279 @@
+use super::{
+	INPUT_HANDLER_REGISTRY, INPUT_METHOD_REF_ASPECT_ALIAS_INFO, INPUT_METHOD_REGISTRY, InputData,
+	InputDataTrait, InputDataType, InputHandler, InputMethodAspect, InputMethodRefAspect,
+	input_method_client,
+};
+use crate::{
+	core::{
+		client::Client,
+		error::{Result, ServerError},
+		registry::Registry,
+	},
+	nodes::{
+		Node,
+		alias::{Alias, AliasList},
+		fields::{FIELD_ALIAS_INFO, Field},
+		spatial::Spatial,
+	},
+};
+use color_eyre::eyre::eyre;
+use parking_lot::Mutex;
+use stardust_xr::values::Datamap;
+use std::sync::{Arc, Weak};
+
+pub struct InputMethod {
+	pub spatial: Arc<Spatial>,
+	pub data: Mutex<InputDataType>,
+	pub datamap: Mutex<Datamap>,
+
+	handler_aliases: AliasList,
+	handler_field_aliases: AliasList,
+	pub(super) handler_order: Mutex<Vec<Weak<InputHandler>>>,
+	pub capture_attempts: Registry<InputHandler>,
+	pub captures: Registry<InputHandler>,
+}
+impl InputMethod {
+	pub fn add_to(
+		node: &Arc<Node>,
+		data: InputDataType,
+		datamap: Datamap,
+	) -> Result<Arc<InputMethod>> {
+		let method = InputMethod {
+			spatial: node.get_aspect::<Spatial>().unwrap().clone(),
+			data: Mutex::new(data),
+			datamap: Mutex::new(datamap),
+
+			handler_aliases: AliasList::default(),
+			handler_field_aliases: AliasList::default(),
+			handler_order: Mutex::new(Vec::new()),
+			capture_attempts: Registry::new(),
+			captures: Registry::new(),
+		};
+		for handler in INPUT_HANDLER_REGISTRY.get_valid_contents() {
+			method.handle_new_handler(&handler);
+		}
+		let method = INPUT_METHOD_REGISTRY.add(method);
+		node.add_aspect_raw(method.clone());
+		node.add_aspect(InputMethodRef);
+		Ok(method)
+	}
+
+	pub fn distance(&self, to: &Field) -> f32 {
+		self.data.lock().distance(&self.spatial, to)
+	}
+
+	pub fn set_handler_order<'a>(&self, handlers: impl Iterator<Item = &'a Arc<InputHandler>>) {
+		*self.handler_order.lock() = handlers.map(Arc::downgrade).collect();
+	}
+
+	pub(super) fn make_alias(&self, handler: &InputHandler) {
+		let Some(method_node) = self.spatial.node() else {
+			return;
+		};
+		let Some(handler_node) = handler.spatial.node() else {
+			return;
+		};
+		let Some(client) = handler_node.get_client() else {
+			return;
+		};
+		let Ok(method_alias) = Alias::create(
+			&method_node,
+			&client,
+			INPUT_METHOD_REF_ASPECT_ALIAS_INFO.clone(),
+			Some(&handler.method_aliases),
+		) else {
+			return;
+		};
+		method_alias.set_enabled(false);
+	}
+	pub(super) fn handle_new_handler(&self, handler: &InputHandler) {
+		self.make_alias(handler);
+
+		let Some(method_node) = self.spatial.node() else {
+			return;
+		};
+		let Some(method_client) = method_node.get_client() else {
+			return;
+		};
+		let Some(handler_node) = handler.spatial.node() else {
+			return;
+		};
+		// Receiver itself
+		let Ok(handler_alias) = Alias::create(
+			&handler_node,
+			&method_client,
+			INPUT_METHOD_REF_ASPECT_ALIAS_INFO.clone(),
+			Some(&self.handler_aliases),
+		) else {
+			return;
+		};
+
+		let Some(handler_field_node) = handler.field.spatial.node() else {
+			return;
+		};
+		// Handler's field
+		let Ok(rx_field_alias) = Alias::create(
+			&handler_field_node,
+			&method_client,
+			FIELD_ALIAS_INFO.clone(),
+			Some(&self.handler_field_aliases),
+		) else {
+			return;
+		};
+
+		let _ = input_method_client::create_handler(&method_node, &handler_alias, &rx_field_alias);
+	}
+	pub(super) fn handle_drop_handler(&self, handler: &InputHandler) {
+		let Some(tx_node) = self.spatial.node() else {
+			return;
+		};
+		let Some(handler_alias) = self.handler_aliases.get_from_aspect(handler) else {
+			return;
+		};
+		let _ = input_method_client::destroy_handler(&tx_node, handler_alias.id);
+		self.handler_aliases.remove_aspect(handler);
+		self.handler_field_aliases
+			.remove_aspect(handler.field.as_ref());
+		self.capture_attempts.remove(handler);
+	}
+
+	pub(super) fn serialize(&self, alias_id: u64, handler: &Arc<InputHandler>) -> InputData {
+		let mut input = self.data.lock().clone();
+		input.transform(self, handler);
+
+		InputData {
+			id: alias_id,
+			input,
+			distance: self.distance(&handler.field),
+			datamap: self.datamap.lock().clone(),
+			order: self
+				.handler_order
+				.lock()
+				.iter()
+				.enumerate()
+				.find(|(_, h)| h.ptr_eq(&Arc::downgrade(handler)))
+				.unwrap()
+				.0 as u32,
+			captured: self.captures.get_valid_contents().contains(handler),
+		}
+	}
+
+	pub(super) fn cull_capture_attempts(&self) {
+		let sent = self
+			.handler_order
+			.lock()
+			.iter()
+			.filter_map(Weak::upgrade)
+			.collect::<Registry<InputHandler>>();
+		self.capture_attempts.retain(|handler| {
+			!handler
+				.spatial
+				.node()
+				.and_then(|n| n.get_client())
+				.map(|c| c.unresponsive())
+				.unwrap_or(false)
+				&& sent.contains(handler)
+		});
+	}
+}
+impl InputMethodAspect for InputMethod {
+	#[doc = "Set the spatial input component of this input method. You must keep the same input data type throughout the entire thing."]
+	fn set_input(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		input: InputDataType,
+	) -> Result<()> {
+		let input_method = node.get_aspect::<InputMethod>()?;
+		*input_method.data.lock() = input;
+		Ok(())
+	}
+
+	#[doc = "Set the datmap of this input method"]
+	fn set_datamap(node: Arc<Node>, _calling_client: Arc<Client>, datamap: Datamap) -> Result<()> {
+		let input_method = node.get_aspect::<InputMethod>()?;
+		*input_method.datamap.lock() = datamap;
+		Ok(())
+	}
+
+	#[doc = "Manually set the order of handlers to propagate input to, or else let the server decide."]
+	fn set_handler_order(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		handlers: Vec<Arc<Node>>,
+	) -> Result<()> {
+		let input_method = node.get_aspect::<InputMethod>()?;
+		let handlers = handlers
+			.into_iter()
+			.filter_map(|p| p.get_aspect::<InputHandler>().ok())
+			.map(|i| Arc::downgrade(&i))
+			.collect::<Vec<_>>();
+
+		*input_method.handler_order.lock() = handlers;
+		Ok(())
+	}
+
+	#[doc = "Set which handlers are captured."]
+	fn set_captures(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		handlers: Vec<Arc<Node>>,
+	) -> Result<()> {
+		let input_method = node.get_aspect::<InputMethod>()?;
+		input_method.captures.clear();
+		for handler in handlers {
+			let Ok(handler) = handler.get_aspect::<InputHandler>() else {
+				continue;
+			};
+			input_method.captures.add_raw(&handler);
+		}
+		Ok(())
+	}
+}
+impl Drop for InputMethod {
+	fn drop(&mut self) {
+		INPUT_METHOD_REGISTRY.remove(self);
+	}
+}
+
+pub struct InputMethodRef;
+impl InputMethodRefAspect for InputMethodRef {
+	#[doc = "Try to capture the input method with the given handler. When the handler does not get input from the method, it will be released."]
+	fn try_capture(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		handler: Arc<Node>,
+	) -> Result<()> {
+		let input_method = node.get_aspect::<InputMethod>()?;
+		let input_handler = handler.get_aspect::<InputHandler>()?;
+
+		input_method.capture_attempts.add_raw(&input_handler);
+
+		let Some(handler_alias) = input_method
+			.handler_aliases
+			.get_from_aspect(&*input_handler)
+		else {
+			return Err(ServerError::Report(eyre!(
+				"Internal: Couldn't get handler alias somehow?"
+			)));
+		};
+		input_method_client::request_capture_handler(&node, handler_alias.get_id())
+	}
+
+	#[doc = "If captured by this handler, release it (e.g. the object is let go of after grabbing)."]
+	fn release(node: Arc<Node>, _calling_client: Arc<Client>, handler: Arc<Node>) -> Result<()> {
+		let input_method = node.get_aspect::<InputMethod>()?;
+		let input_handler = handler.get_aspect::<InputHandler>()?;
+
+		input_method.capture_attempts.remove(&input_handler);
+
+		let Some(handler_alias) = input_method
+			.handler_aliases
+			.get_from_aspect(&*input_handler)
+		else {
+			return Err(ServerError::Report(eyre!(
+				"Internal: Couldn't get handler alias somehow?"
+			)));
+		};
+		input_method_client::release_handler(&node, handler_alias.get_id())
+	}
+}

src/nodes/input/mod.rs

@@ -1,421 +1,170 @@
-pub mod hand;
-pub mod pointer;
-pub mod tip;
+#![allow(clippy::needless_question_mark)]
 
-use self::hand::Hand;
-use self::pointer::Pointer;
-use self::tip::Tip;
+mod hand;
+mod handler;
+mod method;
+mod pointer;
+mod tip;
 
-use super::{
-	alias::{Alias, AliasInfo},
-	fields::{find_field, Field, FIELD_ALIAS_INFO},
-	spatial::{find_spatial_parent, parse_transform, Spatial},
-	Message, Node,
-};
-use crate::core::registry::Registry;
-use crate::core::{client::Client, node_collections::LifeLinkedNodeMap};
-use color_eyre::eyre::{ensure, Result};
-use glam::Mat4;
-use once_cell::sync::OnceCell;
-use parking_lot::Mutex;
-use portable_atomic::AtomicBool;
-use serde::Deserialize;
-use stardust_xr::schemas::{flat::InputData, flex::deserialize};
-use stardust_xr::schemas::{
-	flat::{Datamap, InputDataType},
-	flex::serialize,
-};
-use stardust_xr::values::Transform;
-use std::ops::Deref;
-use std::sync::atomic::Ordering;
-use std::sync::{Arc, Weak};
-use tracing::{debug_span, instrument};
+pub use handler::*;
+pub use method::*;
+
+use super::Aspect;
+use super::AspectIdentifier;
+use super::fields::Field;
+use super::spatial::Spatial;
+use crate::core::error::Result;
+use crate::nodes::spatial::SPATIAL_ASPECT_ALIAS_INFO;
+use crate::nodes::spatial::SPATIAL_REF_ASPECT_ALIAS_INFO;
+use crate::{core::client::Client, nodes::Node};
+use crate::{core::registry::Registry, nodes::spatial::Transform};
+use stardust_xr::values::Datamap;
+use std::sync::Arc;
 
 static INPUT_METHOD_REGISTRY: Registry<InputMethod> = Registry::new();
-static INPUT_HANDLER_REGISTRY: Registry<InputHandler> = Registry::new();
+pub static INPUT_HANDLER_REGISTRY: Registry<InputHandler> = Registry::new();
 
-pub trait InputSpecialization: Send + Sync {
-	fn compare_distance(&self, space: &Arc<Spatial>, field: &Field) -> f32;
-	fn true_distance(&self, space: &Arc<Spatial>, field: &Field) -> f32;
-	fn serialize(
-		&self,
-		distance_link: &DistanceLink,
-		local_to_handler_matrix: Mat4,
-	) -> InputDataType;
+stardust_xr_server_codegen::codegen_input_protocol!();
+
+impl AspectIdentifier for InputHandler {
+	impl_aspect_for_input_handler_aspect_id! {}
 }
-pub enum InputType {
-	Pointer(Pointer),
-	Hand(Box<Hand>),
-	Tip(Tip),
+impl Aspect for InputHandler {
+	impl_aspect_for_input_handler_aspect! {}
 }
-impl Deref for InputType {
-	type Target = dyn InputSpecialization;
-	fn deref(&self) -> &Self::Target {
+impl AspectIdentifier for InputMethod {
+	impl_aspect_for_input_method_aspect_id! {}
+}
+impl Aspect for InputMethod {
+	impl_aspect_for_input_method_aspect! {}
+}
+impl AspectIdentifier for InputMethodRef {
+	impl_aspect_for_input_method_ref_aspect_id! {}
+}
+impl Aspect for InputMethodRef {
+	impl_aspect_for_input_method_ref_aspect! {}
+}
+
+pub trait InputDataTrait {
+	fn transform(&mut self, method: &InputMethod, handler: &InputHandler);
+	fn distance(&self, space: &Arc<Spatial>, field: &Field) -> f32;
+}
+impl InputDataTrait for InputDataType {
+	fn transform(&mut self, method: &InputMethod, handler: &InputHandler) {
 		match self {
-			InputType::Pointer(p) => p,
-			InputType::Hand(h) => h.as_ref(),
-			InputType::Tip(t) => t,
+			InputDataType::Pointer(i) => i.transform(method, handler),
+			InputDataType::Hand(i) => i.transform(method, handler),
+			InputDataType::Tip(i) => i.transform(method, handler),
+		}
+	}
+
+	fn distance(&self, space: &Arc<Spatial>, field: &Field) -> f32 {
+		match self {
+			InputDataType::Pointer(i) => i.distance(space, field),
+			InputDataType::Hand(i) => i.distance(space, field),
+			InputDataType::Tip(i) => i.distance(space, field),
 		}
 	}
 }
 
-pub struct InputMethod {
-	node: Weak<Node>,
-	uid: String,
-	pub enabled: Mutex<bool>,
-	pub spatial: Arc<Spatial>,
-	pub specialization: Mutex<InputType>,
-	captures: Registry<InputHandler>,
-	pub datamap: Mutex<Option<Datamap>>,
-	handler_aliases: LifeLinkedNodeMap<String>,
-	handler_order: OnceCell<Mutex<Vec<Weak<InputHandler>>>>,
-}
-impl InputMethod {
-	#[allow(dead_code)]
-	pub fn add_to(
-		node: &Arc<Node>,
-		specialization: InputType,
-		datamap: Option<Datamap>,
-	) -> Result<Arc<InputMethod>> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-
-		node.add_local_signal("capture", InputMethod::capture_flex);
-		node.add_local_signal("set_datamap", InputMethod::set_datamap_flex);
-		node.add_local_signal("set_handlers", InputMethod::set_handlers_flex);
-
-		let method = InputMethod {
-			node: Arc::downgrade(node),
-			uid: node.uid.clone(),
-			enabled: Mutex::new(true),
-			spatial: node.spatial.get().unwrap().clone(),
-			specialization: Mutex::new(specialization),
-			captures: Registry::new(),
-			datamap: Mutex::new(datamap),
-			handler_aliases: LifeLinkedNodeMap::default(),
-			handler_order: OnceCell::new(),
-		};
-		for handler in INPUT_HANDLER_REGISTRY.get_valid_contents() {
-			method.handle_new_handler(&handler);
-			method.make_alias(&handler);
-		}
-		let method = INPUT_METHOD_REGISTRY.add(method);
-		let _ = node.input_method.set(method.clone());
-		Ok(method)
-	}
-	fn get(node: &Node) -> Result<Arc<Self>> {
-		node.get_aspect("Input Method", "input method", |n| &n.input_method)
-			.cloned()
-	}
-
-	fn capture_flex(node: &Node, calling_client: Arc<Client>, message: Message) -> Result<()> {
-		let method = InputMethod::get(node)?;
-		let handler = InputHandler::find(&calling_client, deserialize(message.as_ref())?)?;
-
-		method.captures.add_raw(&handler);
-		node.send_remote_signal("capture", message)
-	}
-	fn set_datamap_flex(node: &Node, _calling_client: Arc<Client>, message: Message) -> Result<()> {
-		let method = InputMethod::get(node)?;
-		method.datamap.lock().replace(Datamap::new(message.data)?);
-		Ok(())
-	}
-	fn set_handlers_flex(node: &Node, calling_client: Arc<Client>, message: Message) -> Result<()> {
-		let method = InputMethod::get(node)?;
-		let handler_paths: Vec<&str> = deserialize(message.as_ref())?;
-		let handlers: Vec<Weak<InputHandler>> = handler_paths
-			.into_iter()
-			.filter_map(|p| InputHandler::find(&calling_client, p).ok())
-			.map(|h| Arc::downgrade(&h))
-			.collect();
-
-		*method
-			.handler_order
-			.get_or_init(|| Mutex::new(Vec::new()))
-			.lock() = handlers;
-		Ok(())
-	}
-
-	fn make_alias(&self, handler: &InputHandler) {
-		let Some(method_node) = self.node.upgrade() else {return};
-		let Some(handler_node) = handler.node.upgrade() else {return};
-		let Some(client) = handler_node.get_client() else {return};
-		let Ok(method_alias) = Alias::create(
-			&client,
-			handler_node.get_path(),
-			&self.uid,
-			&method_node,
-			AliasInfo {
-				server_signals: vec!["capture"],
-				..Default::default()
-			},
-		) else {return};
-		method_alias.enabled.store(false, Ordering::Relaxed);
-		handler
-			.method_aliases
-			.add(self as *const InputMethod as usize, &method_alias);
-	}
-
-	fn compare_distance(&self, to: &Field) -> f32 {
-		self.specialization
-			.lock()
-			.compare_distance(&self.spatial, to)
-	}
-	fn true_distance(&self, to: &Field) -> f32 {
-		self.specialization.lock().true_distance(&self.spatial, to)
-	}
-
-	fn handle_new_handler(&self, handler: &InputHandler) {
-		let Some(method_node) = self.node.upgrade() else {return};
-		let Some(method_client) = method_node.get_client() else {return};
-		let Some(handler_node) = handler.node.upgrade() else {return};
-		// Receiver itself
-		let Ok(handler_alias) = Alias::create(
-			&method_client,
-			method_node.get_path(),
-			handler.uid.as_str(),
-			&handler_node,
-			AliasInfo {
-				server_methods: vec!["getTransform"],
-				..Default::default()
-			},
-		) else {return};
-		self.handler_aliases
-			.add(handler.uid.clone(), &handler_alias);
-
-		if let Some(handler_field_node) = handler.field.spatial_ref().node.upgrade() {
-			// Handler's field
-			let Ok(rx_field_alias) = Alias::create(
-					&method_client,
-					handler_alias.get_path(),
-					"field",
-					&handler_field_node,
-					FIELD_ALIAS_INFO.clone(),
-				) else {return};
-			self.handler_aliases
-				.add(handler.uid.clone() + "-field", &rx_field_alias);
-		}
-
-		let Ok(data) = serialize(&handler.uid) else {return};
-		let _ = method_node.send_remote_signal("handler_created", data);
-	}
-	fn handle_drop_handler(&self, handler: &InputHandler) {
-		let uid = handler.uid.as_str();
-		self.handler_aliases.remove(uid);
-		self.handler_aliases.remove(&(uid.to_string() + "-field"));
-		let Some(tx_node) = self.node.upgrade() else {return};
-		let Ok(data) = serialize(&uid) else {return};
-		let _ = tx_node.send_remote_signal("handler_destroyed", data);
-	}
-}
-impl Drop for InputMethod {
-	fn drop(&mut self) {
-		INPUT_METHOD_REGISTRY.remove(self);
-	}
-}
-
-pub struct DistanceLink {
-	distance: f32,
-	method: Arc<InputMethod>,
-	handler: Arc<InputHandler>,
-}
-impl DistanceLink {
-	fn from(method: Arc<InputMethod>, handler: Arc<InputHandler>) -> Self {
-		DistanceLink {
-			distance: method.compare_distance(&handler.field),
-			method,
-			handler,
-		}
-	}
-
-	fn send_input(&self, order: u32, datamap: Datamap) {
-		self.handler.send_input(order, self, datamap);
-	}
-	#[instrument(level = "debug", skip(self))]
-	fn serialize(&self, order: u32, datamap: Datamap) -> Vec<u8> {
-		let input = self.method.specialization.lock().serialize(
-			self,
-			Spatial::space_to_space_matrix(Some(&self.method.spatial), Some(&self.handler.spatial)),
-		);
-
-		let root = InputData {
-			uid: self.method.uid.clone(),
-			input,
-			distance: self.method.true_distance(&self.handler.field),
-			datamap,
-			order,
-		};
-		root.serialize()
-	}
-}
-
-pub struct InputHandler {
-	enabled: Arc<AtomicBool>,
-	uid: String,
-	node: Weak<Node>,
-	spatial: Arc<Spatial>,
-	field: Arc<Field>,
-	method_aliases: LifeLinkedNodeMap<usize>,
-}
-impl InputHandler {
-	pub fn add_to(node: &Arc<Node>, field: &Arc<Field>) -> Result<()> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-
-		let handler = InputHandler {
-			enabled: node.enabled.clone(),
-			uid: node.uid.clone(),
-			node: Arc::downgrade(node),
-			spatial: node.spatial.get().unwrap().clone(),
-			field: field.clone(),
-			method_aliases: LifeLinkedNodeMap::default(),
-		};
-		for method in INPUT_METHOD_REGISTRY.get_valid_contents() {
-			method.make_alias(&handler);
-			method.handle_new_handler(&handler);
-		}
-		let handler = INPUT_HANDLER_REGISTRY.add(handler);
-		let _ = node.input_handler.set(handler);
-		Ok(())
-	}
-	fn find(client: &Client, path: &str) -> Result<Arc<Self>> {
-		InputHandler::get(&*client.get_node("Input Handler", path)?)
-	}
-	fn get(node: &Node) -> Result<Arc<Self>> {
-		node.get_aspect("Input Handler", "input handler", |n| &n.input_handler)
-			.cloned()
-	}
-
-	#[instrument(level = "debug", skip(self, distance_link))]
-	fn send_input(&self, order: u32, distance_link: &DistanceLink, datamap: Datamap) {
-		let Some(node) = self.node.upgrade() else {return};
-		let _ = node.send_remote_signal("input", distance_link.serialize(order, datamap));
-	}
-}
-impl PartialEq for InputHandler {
-	fn eq(&self, other: &Self) -> bool {
-		self.spatial == other.spatial
-	}
-}
-impl Drop for InputHandler {
-	fn drop(&mut self) {
-		INPUT_HANDLER_REGISTRY.remove(self);
-		for method in INPUT_METHOD_REGISTRY.get_valid_contents() {
-			method.handle_drop_handler(self);
-		}
-	}
-}
-
-pub fn create_interface(client: &Arc<Client>) -> Result<()> {
-	let node = Node::create(client, "", "input", false);
-	node.add_local_signal("create_input_handler", create_input_handler_flex);
-	node.add_local_signal("create_input_method_pointer", pointer::create_pointer_flex);
-	node.add_local_signal("create_input_method_tip", tip::create_tip_flex);
-	node.add_to_scenegraph().map(|_| ())
-}
-
-pub fn create_input_handler_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	message: Message,
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateInputHandlerInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
+impl InterfaceAspect for Interface {
+	#[doc = "Create an input method node"]
+	fn create_input_method(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
 		transform: Transform,
-		field_path: &'a str,
-	}
-	let info: CreateInputHandlerInfo = deserialize(message.as_ref())?;
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, true);
-	let field = find_field(&calling_client, info.field_path)?;
+		initial_data: InputDataType,
+		datamap: Datamap,
+	) -> Result<()> {
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = transform.to_mat4(true, true, true);
 
-	let node =
-		Node::create(&calling_client, "/input/handler", info.name, true).add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
-	InputHandler::add_to(&node, &field)?;
-	Ok(())
+		let node = Node::from_id(&calling_client, id, true).add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		InputMethod::add_to(&node, initial_data, datamap)?;
+		Ok(())
+	}
+
+	#[doc = "Create an input handler node"]
+	fn create_input_handler(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		field: Arc<Node>,
+	) -> Result<()> {
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = transform.to_mat4(true, true, true);
+		let field = field.get_aspect::<Field>()?;
+
+		let node = Node::from_id(&calling_client, id, true).add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		InputHandler::add_to(&node, &field)?;
+		Ok(())
+	}
 }
+
 #[tracing::instrument(level = "debug")]
 pub fn process_input() {
 	// Iterate over all valid input methods
-	let methods = debug_span!("Get valid methods").in_scope(|| {
-		INPUT_METHOD_REGISTRY
-			.get_valid_contents()
-			.into_iter()
-			.filter(|method| *method.enabled.lock())
-			.filter(|method| method.datamap.lock().is_some())
-	});
-	let handlers = INPUT_HANDLER_REGISTRY.get_valid_contents();
-	const LIMIT: usize = 50;
-	for method in methods {
-		for alias in method.node.upgrade().unwrap().aliases.get_valid_contents() {
-			alias.enabled.store(false, Ordering::Relaxed);
+	let methods = INPUT_METHOD_REGISTRY
+		.get_valid_contents()
+		.into_iter()
+		.filter(|method| {
+			let Some(node) = method.spatial.node() else {
+				return false;
+			};
+			node.enabled()
+		});
+	for handler in INPUT_HANDLER_REGISTRY.get_valid_contents() {
+		for method_alias in handler.method_aliases.get_aliases() {
+			method_alias.set_enabled(false);
 		}
 
-		debug_span!("Process input method").in_scope(|| {
-			// Get all valid input handlers and convert them to DistanceLink objects
-			let distance_links: Vec<DistanceLink> = debug_span!("Generate distance links")
-				.in_scope(|| {
-					if let Some(handler_order) = method.handler_order.get() {
-						let handler_order = handler_order.lock();
-						handler_order
-							.iter()
-							.filter_map(|h| h.upgrade())
-							.filter(|handler| handler.enabled.load(Ordering::Relaxed))
-							.map(|handler| DistanceLink::from(method.clone(), handler))
-							.collect()
-					} else {
-						let mut distance_links: Vec<_> = handlers
-							.iter()
-							.filter(|handler| handler.enabled.load(Ordering::Relaxed))
-							.map(|handler| {
-								debug_span!("Create distance link").in_scope(|| {
-									DistanceLink::from(method.clone(), handler.clone())
-								})
-							})
-							.collect();
-
-						// Sort the distance links by their distance in ascending order
-						debug_span!("Sort distance links").in_scope(|| {
-							distance_links.sort_unstable_by(|a, b| {
-								a.distance.abs().partial_cmp(&b.distance.abs()).unwrap()
-							});
-						});
-
-						distance_links.truncate(LIMIT);
-						distance_links
-					}
-				});
-
-			let captures = method.captures.take_valid_contents();
-			// Iterate over the distance links and send input to them
-			for (i, distance_link) in distance_links.into_iter().enumerate() {
-				if i > LIMIT {
-					break;
-				}
-
-				if let Some(method_alias) = distance_link
-					.handler
-					.method_aliases
-					.get(&(Arc::as_ptr(&distance_link.method) as usize))
-					.and_then(|a| a.alias.get().cloned())
-				{
-					method_alias.enabled.store(true, Ordering::Relaxed);
-				}
-				distance_link.send_input(i as u32, method.datamap.lock().clone().unwrap());
-
-				// If the current distance link is in the list of captured input handlers,
-				// break out of the loop to avoid sending input to the remaining distance links
-				if captures.contains(&distance_link.handler) {
-					break;
-				}
+		let Some(handler_node) = handler.spatial.node() else {
+			continue;
+		};
+		if !handler_node.enabled() {
+			continue;
+		}
+		if let Some(handler_field_node) = handler.field.spatial.node() {
+			if !handler_field_node.enabled() {
+				continue;
 			}
-		});
+		};
+
+		let (methods, datas) = methods
+			.clone()
+			// filter out methods without the handler in their handler order
+			.filter(|a| {
+				a.handler_order
+					.lock()
+					.iter()
+					.any(|h| h.ptr_eq(&Arc::downgrade(&handler)))
+			})
+			// filter out methods without the proper alias
+			.filter_map(|m| {
+				Some((
+					handler
+						.method_aliases
+						.get_from_original_node(m.spatial.node.clone())?,
+					m,
+				))
+			})
+			// make sure the input method alias is enabled
+			.inspect(|(a, _)| {
+				a.set_enabled(true);
+			})
+			// serialize the data
+			.map(|(a, m)| (a.clone(), m.serialize(a.get_id(), &handler)))
+			.unzip::<_, _, Vec<_>, Vec<_>>();
+
+		let _ = input_handler_client::input(&handler_node, &methods, &datas);
+	}
+	for method in methods {
+		method.cull_capture_attempts();
 	}
 }

src/nodes/input/pointer.rs

@@ -1,92 +1,52 @@
-use super::{DistanceLink, InputSpecialization};
-use crate::core::client::Client;
-use crate::nodes::fields::{Field, Ray, RayMarchResult};
-use crate::nodes::input::{InputMethod, InputType};
-use crate::nodes::spatial::{find_spatial_parent, parse_transform, Spatial};
-use crate::nodes::{Message, Node};
-use glam::{vec3, Mat4};
-use serde::Deserialize;
-use stardust_xr::schemas::flat::{Datamap, InputDataType, Pointer as FlatPointer};
-use stardust_xr::schemas::flex::deserialize;
-use stardust_xr::values::Transform;
-use std::sync::Arc;
+use super::{InputDataTrait, InputHandler, InputMethod, Pointer};
+use crate::nodes::{
+	fields::{Field, FieldTrait, Ray, RayMarchResult},
+	spatial::Spatial,
+};
+use glam::{Mat4, Quat, vec3};
+use std::sync::{Arc, Weak};
 
-#[derive(Default)]
-pub struct Pointer;
-// impl Default for Pointer {
-// 	fn default() -> Self {
-// 		Pointer {
-// 			grab: Default::default(),
-// 			select: Default::default(),
-// 		}
-// 	}
-// }
+impl Default for Pointer {
+	fn default() -> Self {
+		Pointer {
+			origin: [0.0; 3].into(),
+			orientation: Quat::IDENTITY.into(),
+			deepest_point: [0.0; 3].into(),
+		}
+	}
+}
 impl Pointer {
-	fn ray_march(&self, space: &Arc<Spatial>, field: &Field) -> RayMarchResult {
+	fn ray_march(&self, method_space: &Arc<Spatial>, field: &Field) -> RayMarchResult {
 		field.ray_march(Ray {
 			origin: vec3(0.0, 0.0, 0.0),
 			direction: vec3(0.0, 0.0, -1.0),
-			space: space.clone(),
+			space: Spatial::new(
+				Weak::new(),
+				Some(method_space.clone()),
+				Mat4::from_rotation_translation(self.orientation.into(), self.origin.into()),
+			),
 		})
 	}
 }
-
-impl InputSpecialization for Pointer {
-	fn compare_distance(&self, space: &Arc<Spatial>, field: &Field) -> f32 {
-		let ray_info = self.ray_march(space, field);
-		if ray_info.min_distance > 0.0 {
-			ray_info.deepest_point_distance + 1000.0
-		} else {
-			ray_info
-				.deepest_point_distance
-				.hypot(0.001 / ray_info.min_distance)
-		}
-	}
-	fn true_distance(&self, space: &Arc<Spatial>, field: &Field) -> f32 {
+impl InputDataTrait for Pointer {
+	fn distance(&self, space: &Arc<Spatial>, field: &Field) -> f32 {
 		let ray_info = self.ray_march(space, field);
 		ray_info.min_distance
 	}
-	fn serialize(
-		&self,
-		distance_link: &DistanceLink,
-		local_to_handler_matrix: Mat4,
-	) -> InputDataType {
+	fn transform(&mut self, method: &InputMethod, handler: &InputHandler) {
+		let local_to_handler_matrix =
+			Mat4::from_rotation_translation(self.orientation.into(), self.origin.into())
+				* Spatial::space_to_space_matrix(Some(&method.spatial), Some(&handler.spatial));
 		let (_, orientation, origin) = local_to_handler_matrix.to_scale_rotation_translation();
-		let direction = local_to_handler_matrix.transform_vector3(vec3(0.0, 0.0, -1.0));
-		let ray_march = self.ray_march(&distance_link.method.spatial, &distance_link.handler.field);
+
+		let ray_march = self.ray_march(&method.spatial, &handler.field);
+		let direction = local_to_handler_matrix
+			.transform_vector3(vec3(0.0, 0.0, -1.0))
+			.normalize();
 		let deepest_point = (direction * ray_march.deepest_point_distance) + origin;
 
-		InputDataType::Pointer(FlatPointer {
-			origin: origin.into(),
-			orientation: orientation.into(),
-			deepest_point: deepest_point.into(),
-		})
+		self.origin = origin.into();
+		self.orientation = orientation.into();
+		self.deepest_point = deepest_point.into();
 	}
 }
-
-pub fn create_pointer_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	message: Message,
-) -> color_eyre::eyre::Result<()> {
-	#[derive(Deserialize)]
-	struct CreatePointerInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		datamap: Option<Vec<u8>>,
-	}
-	let info: CreatePointerInfo = deserialize(message.as_ref())?;
-	let node = Node::create(&calling_client, "/input/method/pointer", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false);
-
-	let node = node.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
-	InputMethod::add_to(
-		&node,
-		InputType::Pointer(Pointer),
-		info.datamap.and_then(|datamap| Datamap::new(datamap).ok()),
-	)?;
-	Ok(())
-}

src/nodes/input/tip.rs

@@ -1,73 +1,29 @@
-use super::{DistanceLink, InputSpecialization};
-use crate::core::client::Client;
-use crate::nodes::fields::Field;
-use crate::nodes::input::{InputMethod, InputType};
-use crate::nodes::spatial::{find_spatial_parent, parse_transform, Spatial};
-use crate::nodes::{Message, Node};
-use color_eyre::eyre::Result;
-use glam::{vec3a, Mat4};
-use serde::Deserialize;
-use stardust_xr::schemas::flat::{Datamap, InputDataType, Tip as FlatTip};
-use stardust_xr::schemas::flex::deserialize;
-use stardust_xr::values::Transform;
+use super::{InputDataTrait, InputHandler, InputMethod, Tip};
+use crate::nodes::{
+	fields::{Field, FieldTrait},
+	spatial::Spatial,
+};
+use glam::{Mat4, Quat};
 use std::sync::Arc;
 
-#[derive(Default)]
-pub struct Tip {
-	pub radius: f32,
-}
-impl Tip {
-	fn set_radius(node: &Node, _calling_client: Arc<Client>, message: Message) -> Result<()> {
-		if let InputType::Tip(tip) = &mut *node.input_method.get().unwrap().specialization.lock() {
-			tip.radius = deserialize(message.as_ref())?;
+impl Default for Tip {
+	fn default() -> Self {
+		Tip {
+			origin: [0.0; 3].into(),
+			orientation: Quat::IDENTITY.into(),
 		}
-		Ok(())
 	}
 }
-impl InputSpecialization for Tip {
-	fn compare_distance(&self, space: &Arc<Spatial>, field: &Field) -> f32 {
-		field.distance(space, vec3a(0.0, 0.0, 0.0)).abs()
+impl InputDataTrait for Tip {
+	fn distance(&self, space: &Arc<Spatial>, field: &Field) -> f32 {
+		field.distance(space, self.origin.into())
 	}
-	fn true_distance(&self, space: &Arc<Spatial>, field: &Field) -> f32 {
-		field.distance(space, vec3a(0.0, 0.0, 0.0))
-	}
-	fn serialize(
-		&self,
-		_distance_link: &DistanceLink,
-		local_to_handler_matrix: Mat4,
-	) -> InputDataType {
+	fn transform(&mut self, method: &InputMethod, handler: &InputHandler) {
+		let local_to_handler_matrix =
+			Spatial::space_to_space_matrix(Some(&method.spatial), Some(&handler.spatial))
+				* Mat4::from_rotation_translation(self.orientation.into(), self.origin.into());
 		let (_, orientation, origin) = local_to_handler_matrix.to_scale_rotation_translation();
-		InputDataType::Tip(FlatTip {
-			origin: origin.into(),
-			orientation: orientation.into(),
-			radius: self.radius,
-		})
+		self.origin = origin.into();
+		self.orientation = orientation.into();
 	}
 }
-
-pub fn create_tip_flex(_node: &Node, calling_client: Arc<Client>, message: Message) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateTipInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		radius: f32,
-		datamap: Option<Vec<u8>>,
-	}
-	let info: CreateTipInfo = deserialize(message.as_ref())?;
-	let node = Node::create(&calling_client, "/input/method/tip", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false);
-
-	let node = node.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
-	InputMethod::add_to(
-		&node,
-		InputType::Tip(Tip {
-			radius: info.radius,
-		}),
-		info.datamap.and_then(|datamap| Datamap::new(datamap).ok()),
-	)?;
-	node.add_local_signal("set_radius", Tip::set_radius);
-	Ok(())
-}

src/nodes/items/camera.rs

@@ -1,380 +1,250 @@
-use super::{Item, ItemType};
+use super::{Item, ItemType, create_item_acceptor_flex, register_item_ui_flex};
+use crate::bail;
+use crate::core::error::Result;
+use crate::nodes::Aspect;
+use crate::nodes::AspectIdentifier;
+use crate::nodes::items::ITEM_ACCEPTOR_ASPECT_ALIAS_INFO;
+use crate::nodes::items::ITEM_ASPECT_ALIAS_INFO;
 use crate::{
-	core::{
-		buffers::BufferManager,
-		client::{Client, INTERNAL_CLIENT},
-		registry::Registry,
-		scenegraph::MethodResponseSender,
-	},
+	core::{client::Client, registry::Registry, scenegraph::MethodResponseSender},
 	nodes::{
-		drawable::{model::ModelPart, shaders::UNLIT_SHADER_BYTES, Drawable},
-		items::TypeInfo,
-		spatial::{find_spatial_parent, parse_transform, Spatial},
 		Message, Node,
+		drawable::{
+			model::{MaterialWrapper, ModelPart},
+			shaders::UNLIT_SHADER_BYTES,
+		},
+		items::TypeInfo,
+		spatial::{Spatial, Transform},
 	},
 };
-use color_eyre::eyre::{bail, Result};
 use glam::Mat4;
 use lazy_static::lazy_static;
-use mint::{RowMatrix4, Vector2};
-use nanoid::nanoid;
-use once_cell::sync::OnceCell;
+use mint::{ColumnMatrix4, Vector2};
 use parking_lot::Mutex;
-use serde::Deserialize;
-use smithay::backend::{
-	allocator::{
-		dmabuf::{Dmabuf, DmabufFlags},
-		Buffer,
-	},
-	renderer::{gles, ImportDma},
-};
-use stardust_xr::{
-	scenegraph::ScenegraphError,
-	schemas::flex::{deserialize, serialize},
-	values::{BufferColorspace, BufferInfo, Transform},
-};
-use std::{ffi::c_void, sync::Arc};
-use stereokit::{
-	Color128, Material, Rect, RenderLayer, StereoKitDraw, Tex, TextureFormat, TextureType,
-	Transparency,
-};
-use tokio::sync::mpsc::{self, error::SendError};
 
+use stardust_xr::schemas::flex::{deserialize, serialize};
+use std::sync::Arc;
+use std::sync::OnceLock;
+use stereokit_rust::{
+	material::{Material, Transparency},
+	shader::Shader,
+	sk::MainThreadToken,
+	system::Renderer,
+	tex::{Tex, TexFormat, TexType},
+	util::Color128,
+};
+
+pub struct TexWrapper(pub Tex);
+unsafe impl Send for TexWrapper {}
+unsafe impl Sync for TexWrapper {}
+
+stardust_xr_server_codegen::codegen_item_camera_protocol!();
 lazy_static! {
 	pub(super) static ref ITEM_TYPE_INFO_CAMERA: TypeInfo = TypeInfo {
 		type_name: "camera",
-		aliased_local_signals: vec!["apply_preview_material"],
-		aliased_local_methods: vec!["render"],
-		aliased_remote_signals: vec![],
+		alias_info: CAMERA_ITEM_ASPECT_ALIAS_INFO.clone(),
+		ui_node_id: INTERFACE_NODE_ID,
 		ui: Default::default(),
 		items: Registry::new(),
 		acceptors: Registry::new(),
+		add_acceptor_aspect: |node| {
+			node.add_aspect(CameraItemAcceptor);
+		},
+		add_ui_aspect: |node| {
+			node.add_aspect(CameraItemUi);
+		},
+		new_acceptor_fn: |node, acceptor, acceptor_field| {
+			let _ = camera_item_ui_client::create_acceptor(node, acceptor, acceptor_field);
+		}
 	};
 }
 
 struct FrameInfo {
 	proj_matrix: Mat4,
-	preview_size: Vector2<u32>,
+	px_size: Vector2<u32>,
 }
 
 pub struct CameraItem {
 	space: Arc<Spatial>,
 	frame_info: Mutex<FrameInfo>,
-	sk_tex: OnceCell<Tex>,
-	sk_mat: OnceCell<Arc<Material>>,
-	render_requests_tx: mpsc::UnboundedSender<(Dmabuf, BufferColorspace, MethodResponseSender)>,
-	render_requests_rx:
-		Mutex<mpsc::UnboundedReceiver<(Dmabuf, BufferColorspace, MethodResponseSender)>>,
-	rendered_notifiers: Mutex<Vec<MethodResponseSender>>,
-	applied_preview_to: Registry<ModelPart>,
-	apply_preview_to: Registry<ModelPart>,
+	sk_tex: OnceLock<TexWrapper>,
+	sk_mat: OnceLock<Arc<MaterialWrapper>>,
+	applied_to: Registry<ModelPart>,
+	apply_to: Registry<ModelPart>,
 }
+#[allow(unused)]
 impl CameraItem {
-	pub fn add_to(node: &Arc<Node>, proj_matrix: Mat4, preview_size: Vector2<u32>) {
-		let (render_requests_tx, render_requests_rx) = mpsc::unbounded_channel();
-		let camera_specialization = CameraItem {
-			space: node.spatial.get().unwrap().clone(),
+	pub fn add_to(node: &Arc<Node>, proj_matrix: Mat4, px_size: Vector2<u32>) {
+		let item = Arc::new(CameraItem {
+			space: node.get_aspect::<Spatial>().unwrap().clone(),
 			frame_info: Mutex::new(FrameInfo {
 				proj_matrix,
-				preview_size,
+				px_size,
 			}),
-			sk_tex: OnceCell::new(),
-			sk_mat: OnceCell::new(),
-			render_requests_tx,
-			render_requests_rx: Mutex::new(render_requests_rx),
-			rendered_notifiers: Mutex::new(Vec::new()),
-			applied_preview_to: Registry::new(),
-			apply_preview_to: Registry::new(),
-		};
-		Item::add_to(
-			node,
-			nanoid!(),
-			&ITEM_TYPE_INFO_CAMERA,
-			ItemType::Camera(camera_specialization),
-		);
-		node.add_local_method("render", CameraItem::render_flex);
-		node.add_local_signal(
-			"apply_preview_material",
-			CameraItem::apply_preview_material_flex,
-		);
+			sk_tex: OnceLock::new(),
+			sk_mat: OnceLock::new(),
+			applied_to: Registry::new(),
+			apply_to: Registry::new(),
+		});
+		Item::add_to(node, &ITEM_TYPE_INFO_CAMERA, ItemType::Camera(item.clone()));
+		node.add_aspect_raw(item);
 	}
 
-	fn render_flex(
-		node: &Node,
+	fn frame_flex(
+		node: Arc<Node>,
 		_calling_client: Arc<Client>,
-		message: Message,
+		_message: Message,
 		response: MethodResponseSender,
 	) {
-		let Some(item) = node.item.get() else {
-			let _ = response.send(Err(ScenegraphError::MethodError {
-				error: "Item not found".to_string(),
-			}));
-			return;
-		};
-		let ItemType::Camera(camera) = &item.specialization else {
-			let _ = response.send(Err(ScenegraphError::MethodError {
-				error: "Wrong item type?".to_string(),
-			}));
-			return;
-		};
-
-		let buffer_info: BufferInfo = match deserialize(&message.data) {
-			Ok(i) => i,
-			Err(e) => {
-				let _ = response.send(Err(ScenegraphError::MethodError {
-					error: e.to_string(),
-				}));
-				return;
-			}
-		};
-		let mut builder = Dmabuf::builder(
-			(buffer_info.width as i32, buffer_info.height as i32),
-			buffer_info.fourcc.try_into().unwrap(),
-			DmabufFlags::from_bits_truncate(buffer_info.flags),
-		);
-		for (fd, plane) in message.fds.into_iter().zip(buffer_info.planes) {
-			builder.add_plane(
-				fd,
-				plane.idx,
-				plane.offset,
-				plane.stride,
-				plane.modifier.try_into().unwrap(),
-			);
-		}
-		let buffer_to_render = builder.build().unwrap();
-
-		if let Err(SendError((_dmabuf, _colorspace, sender))) =
-			camera
-				.render_requests_tx
-				.send((buffer_to_render, buffer_info.colorspace, response))
-		{
-			sender.send(Err(ScenegraphError::MethodError {
-				error: "Internal: sender broke????".to_string(),
-			}));
-		}
+		response.wrap_sync(move || {
+			let ItemType::Camera(_camera) = &node.get_aspect::<Item>().unwrap().specialization
+			else {
+				bail!("Wrong item type?");
+			};
+			Ok(serialize(())?.into())
+		});
 	}
 
 	fn apply_preview_material_flex(
-		node: &Node,
+		node: Arc<Node>,
 		calling_client: Arc<Client>,
 		message: Message,
 	) -> Result<()> {
-		let Some(item) = node.item.get() else {
-			bail!("Item not found?")
+		let ItemType::Camera(camera) = &node.get_aspect::<Item>().unwrap().specialization else {
+			bail!("Wrong item type?");
 		};
-		let ItemType::Camera(camera) = &item.specialization else {
-			bail!("Wrong item type?")
-		};
-
-		let model_part_path = deserialize(&message.data)?;
-		let model_part_node = calling_client.get_node("Model part", model_part_path)?;
-		let Drawable::ModelPart(model_part) =
-			model_part_node.get_aspect("Model part", "model part", |n| &n.drawable)?
-		else {
-			bail!("Drawable is not a model node")
-		};
-
-		camera.applied_preview_to.add_raw(model_part);
-		camera.apply_preview_to.add_raw(model_part);
-
+		let model_part_node =
+			calling_client.get_node("Model part", deserialize(&message.data).unwrap())?;
+		let model_part = model_part_node.get_aspect::<ModelPart>()?;
+		camera.applied_to.add_raw(&model_part);
+		camera.apply_to.add_raw(&model_part);
 		Ok(())
 	}
 
-	pub fn serialize_start_data(&self, id: &str) -> Result<Message> {
-		Ok(serialize(id)?.into())
+	pub fn send_ui_item_created(&self, node: &Node, item: &Arc<Node>) {
+		let _ = camera_item_ui_client::create_item(node, item);
+	}
+	pub fn send_acceptor_item_created(&self, node: &Node, item: &Arc<Node>) {
+		let _ = camera_item_acceptor_client::capture_item(node, item);
 	}
 
-	pub fn update(&self, sk: &impl StereoKitDraw, buffer_manager: &mut BufferManager) {
+	pub fn update(&self, token: &MainThreadToken) {
 		let frame_info = self.frame_info.lock();
-		self.render_preview(sk, &*frame_info);
-		self.render_dmabuf(sk, buffer_manager, &*frame_info);
-	}
-
-	fn render_preview(&self, sk: &impl StereoKitDraw, frame_info: &FrameInfo) {
-		if !self.apply_preview_to.is_empty() {
-			let sk_tex = self.sk_tex.get_or_init(|| {
-				sk.tex_gen_color(
-					Color128::default(),
-					frame_info.preview_size.x as i32,
-					frame_info.preview_size.y as i32,
-					TextureType::RENDER_TARGET,
-					TextureFormat::RGBA32Linear,
-				)
-			});
-			let sk_mat = self.sk_mat.get_or_init(|| {
-				let shader = sk.shader_create_mem(&UNLIT_SHADER_BYTES).unwrap();
-				let mat = sk.material_create(&shader);
-				sk.material_set_texture(&mat, "diffuse", sk_tex.as_ref());
-				sk.material_set_transparency(&mat, Transparency::Blend);
-				Arc::new(mat)
-			});
-			for model_part in self.apply_preview_to.take_valid_contents() {
-				model_part.replace_material(sk_mat.clone())
-			}
+		let sk_tex = self.sk_tex.get_or_init(|| {
+			TexWrapper(Tex::gen_color(
+				Color128::default(),
+				frame_info.px_size.x as i32,
+				frame_info.px_size.y as i32,
+				TexType::Rendertarget,
+				TexFormat::RGBA32Linear,
+			))
+		});
+		let sk_mat = self.sk_mat.get_or_init(|| {
+			let shader = Shader::from_memory(UNLIT_SHADER_BYTES).unwrap();
+			let mut mat = Material::new(&shader, None);
+			mat.get_all_param_info().set_texture("diffuse", &sk_tex.0);
+			mat.transparency(Transparency::Blend);
+			Arc::new(MaterialWrapper(mat))
+		});
+		for model_part in self.apply_to.take_valid_contents() {
+			model_part.replace_material(sk_mat.clone())
 		}
 
-		if !self.applied_preview_to.is_empty() {
-			sk.render_to(
-				self.sk_tex.get().unwrap(),
+		if !self.applied_to.is_empty() {
+			Renderer::render_to(
+				token,
+				&sk_tex.0,
 				self.space.global_transform(),
 				frame_info.proj_matrix,
-				RenderLayer::all(),
-				stereokit::RenderClear::All,
-				Rect {
-					x: 0.0,
-					y: 0.0,
-					w: 0.0,
-					h: 0.0,
-				},
-			);
-		}
-	}
-
-	fn render_dmabuf(
-		&self,
-		sk: &impl StereoKitDraw,
-		buffer_manager: &mut BufferManager,
-		frame_info: &FrameInfo,
-	) {
-		let mut render_notifiers = self.rendered_notifiers.lock();
-		let mut render_requests_rx = self.render_requests_rx.lock();
-		while let Ok((buffer_to_render, colorspace, render_response_sender)) =
-			render_requests_rx.try_recv()
-		{
-			let imported_dmabuf = buffer_manager
-				.renderer
-				.import_dmabuf(&buffer_to_render, None);
-			let smithay_tex = match imported_dmabuf {
-				Ok(t) => t,
-				Err(e) => {
-					let _ = render_response_sender.send(Err(ScenegraphError::MethodError {
-						error: e.to_string(),
-					}));
-					continue;
-				}
-			};
-
-			let texture_format;
-			let native_format;
-
-			match colorspace {
-				BufferColorspace::SRGB => match buffer_to_render.format().code {
-					drm_fourcc::DrmFourcc::Argb8888 => {
-						texture_format = TextureFormat::RGBA32;
-						native_format = gles::ffi::SRGB8_ALPHA8;
-					}
-					drm_fourcc::DrmFourcc::Abgr8888 => {
-						texture_format = TextureFormat::BGRA32;
-						native_format = gles::ffi::SRGB8_ALPHA8;
-					}
-					_ => {
-						let _ = render_response_sender.send(Err(ScenegraphError::MethodError {
-							error: "Unsupported pixel format".to_string(),
-						}));
-						continue;
-					}
-				},
-				BufferColorspace::Linear => match buffer_to_render.format().code {
-					drm_fourcc::DrmFourcc::Argb8888 => {
-						texture_format = TextureFormat::RGBA32Linear;
-						native_format = gles::ffi::RGBA8;
-					}
-					drm_fourcc::DrmFourcc::Abgr8888 => {
-						texture_format = TextureFormat::BGRA32Linear;
-						native_format = gles::ffi::RGBA8;
-					}
-					_ => {
-						let _ = render_response_sender.send(Err(ScenegraphError::MethodError {
-							error: "Unsupported pixel format".to_string(),
-						}));
-						continue;
-					}
-				},
-			}
-
-			// TODO: This doesn't seem to care about the texture format, it seems to always output with sRGB.
-			let sk_tex = sk.tex_create(TextureType::IMAGE_NO_MIPS, texture_format);
-			unsafe {
-				sk.tex_set_surface(
-					&sk_tex,
-					smithay_tex.tex_id() as usize as *mut c_void,
-					TextureType::RENDER_TARGET,
-					native_format.into(),
-					buffer_to_render.size().w,
-					buffer_to_render.size().h,
-					1,
-					false,
-				);
-			}
-
-			sk.render_to(
-				sk_tex,
-				self.space.global_transform(),
-				frame_info.proj_matrix,
-				RenderLayer::all(),
-				stereokit::RenderClear::All,
-				Rect {
-					x: 0.0,
-					y: 0.0,
-					w: 0.0,
-					h: 0.0,
-				},
-			);
-			render_notifiers.push(render_response_sender);
-		}
-	}
-
-	pub fn send_rendered(&self) {
-		for notifier in self.rendered_notifiers.lock().drain(..) {
-			let _ = notifier.send(Ok(Vec::new().into()));
+				None,
+				None,
+				None,
+			)
 		}
 	}
 }
+impl AspectIdentifier for CameraItem {
+	impl_aspect_for_camera_item_aspect_id! {}
+}
+impl Aspect for CameraItem {
+	impl_aspect_for_camera_item_aspect! {}
+}
+impl CameraItemAspect for CameraItem {}
 
-pub fn update(sk: &impl StereoKitDraw, buffer_manager: &mut BufferManager) {
+pub struct CameraItemUi;
+impl AspectIdentifier for CameraItemUi {
+	impl_aspect_for_camera_item_ui_aspect_id! {}
+}
+impl Aspect for CameraItemUi {
+	impl_aspect_for_camera_item_ui_aspect! {}
+}
+impl CameraItemUiAspect for CameraItemUi {}
+
+pub struct CameraItemAcceptor;
+impl AspectIdentifier for CameraItemAcceptor {
+	impl_aspect_for_camera_item_acceptor_aspect_id! {}
+}
+impl Aspect for CameraItemAcceptor {
+	impl_aspect_for_camera_item_acceptor_aspect! {}
+}
+impl CameraItemAcceptorAspect for CameraItemAcceptor {
+	fn capture_item(node: Arc<Node>, _calling_client: Arc<Client>, item: Arc<Node>) -> Result<()> {
+		super::acceptor_capture_item_flex(node, item)
+	}
+}
+
+pub fn update(token: &MainThreadToken) {
 	for camera in ITEM_TYPE_INFO_CAMERA.items.get_valid_contents() {
 		let ItemType::Camera(camera) = &camera.specialization else {
 			continue;
 		};
-		camera.update(sk, buffer_manager);
+		camera.update(token);
 	}
 }
 
-pub fn send_rendered() {
-	for camera in ITEM_TYPE_INFO_CAMERA.items.get_valid_contents() {
-		let ItemType::Camera(camera) = &camera.specialization else {
-			continue;
-		};
-		camera.send_rendered();
-	}
-}
-
-pub(super) fn create_camera_item_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	message: Message,
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateCameraItemInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
+impl InterfaceAspect for Interface {
+	#[doc = "Create a camera item at a specific location"]
+	fn create_camera_item(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
 		transform: Transform,
-		proj_matrix: RowMatrix4<f32>,
-		preview_size: Vector2<u32>,
-	}
-	let info: CreateCameraItemInfo = deserialize(message.as_ref())?;
-	let parent_name = format!("/item/{}/item", ITEM_TYPE_INFO_CAMERA.type_name);
-	let space = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false);
+		proj_matrix: ColumnMatrix4<f32>,
+		px_size: Vector2<u32>,
+	) -> Result<()> {
+		let space = parent.get_aspect::<Spatial>()?;
+		let transform = transform.to_mat4(true, true, false);
 
-	let node =
-		Node::create(&INTERNAL_CLIENT, &parent_name, info.name, false).add_to_scenegraph()?;
-	Spatial::add_to(&node, None, transform * space.global_transform(), false)?;
-	CameraItem::add_to(&node, info.proj_matrix.into(), info.preview_size);
-	// TODO: this means ANY client can render anywhere with no limits, this needs to be changed!!
-	node.item
-		.get()
-		.unwrap()
-		.make_alias_named(&calling_client, &parent_name, info.name)?;
-	Ok(())
+		let node = Node::from_id(&calling_client, id, false).add_to_scenegraph()?;
+		Spatial::add_to(&node, None, transform * space.global_transform(), false);
+		CameraItem::add_to(&node, proj_matrix.into(), px_size);
+		Ok(())
+	}
+
+	#[doc = "Register this client to manage camera items and create default 3D UI for them."]
+	fn register_camera_item_ui(node: Arc<Node>, calling_client: Arc<Client>) -> Result<()> {
+		node.add_aspect(CameraItemUi);
+		register_item_ui_flex(calling_client, &ITEM_TYPE_INFO_CAMERA)
+	}
+
+	#[doc = "Create an item acceptor to allow temporary ownership of a given type of item. Creates a node at `/item/camera/acceptor/<name>`."]
+	fn create_camera_item_acceptor(
+		node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		field: Arc<Node>,
+	) -> Result<()> {
+		node.add_aspect(CameraItemAcceptor);
+		create_item_acceptor_flex(
+			calling_client,
+			id,
+			parent,
+			transform,
+			&ITEM_TYPE_INFO_CAMERA,
+			field,
+		)
+	}
 }

src/nodes/items/environment.rs

@@ -1,95 +0,0 @@
-use super::{Item, ItemType};
-use crate::{
-	core::{
-		client::{Client, INTERNAL_CLIENT},
-		registry::Registry,
-		scenegraph::MethodResponseSender,
-	},
-	nodes::{
-		items::TypeInfo,
-		spatial::{find_spatial_parent, parse_transform, Spatial},
-		Message, Node,
-	},
-};
-use color_eyre::eyre::{eyre, Result};
-use lazy_static::lazy_static;
-use nanoid::nanoid;
-use serde::Deserialize;
-use stardust_xr::{
-	schemas::flex::{deserialize, serialize},
-	values::Transform,
-};
-use std::sync::Arc;
-
-lazy_static! {
-	pub(super) static ref ITEM_TYPE_INFO_ENVIRONMENT: TypeInfo = TypeInfo {
-		type_name: "environment",
-		aliased_local_signals: vec!["apply_sky_tex", "apply_sky_light"],
-		aliased_local_methods: vec![],
-		aliased_remote_signals: vec![],
-		ui: Default::default(),
-		items: Registry::new(),
-		acceptors: Registry::new(),
-	};
-}
-
-pub struct EnvironmentItem {
-	path: String,
-}
-impl EnvironmentItem {
-	pub fn add_to(node: &Arc<Node>, path: String) {
-		Item::add_to(
-			node,
-			nanoid!(),
-			&ITEM_TYPE_INFO_ENVIRONMENT,
-			ItemType::Environment(EnvironmentItem { path }),
-		);
-		node.add_local_method("get_path", EnvironmentItem::get_path_flex);
-	}
-
-	fn get_path_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		_message: Message,
-		response: MethodResponseSender,
-	) {
-		response.wrap_sync(move || {
-			let ItemType::Environment(environment_item) = &node.item.get().unwrap().specialization else {
-			return Err(eyre!("Wrong item type?"))
-		};
-			Ok(serialize(environment_item.path.as_str())?.into())
-		});
-	}
-
-	pub fn serialize_start_data(&self, id: &str) -> Result<Message> {
-		Ok(serialize((id, self.path.as_str()))?.into())
-	}
-}
-
-pub(super) fn create_environment_item_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	message: Message,
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateEnvironmentItemInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		item_data: String,
-	}
-	let info: CreateEnvironmentItemInfo = deserialize(message.as_ref())?;
-	let parent_name = format!("/item/{}/item", ITEM_TYPE_INFO_ENVIRONMENT.type_name);
-	let space = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false);
-
-	let node =
-		Node::create(&INTERNAL_CLIENT, &parent_name, info.name, false).add_to_scenegraph()?;
-	Spatial::add_to(&node, None, transform * space.global_transform(), false)?;
-	EnvironmentItem::add_to(&node, info.item_data);
-	node.item
-		.get()
-		.unwrap()
-		.make_alias_named(&calling_client, &parent_name, info.name)?;
-	Ok(())
-}

src/nodes/items/mod.rs

@@ -1,44 +1,26 @@
 pub mod camera;
-mod environment;
 pub mod panel;
 
 use self::camera::CameraItem;
-use self::environment::{EnvironmentItem, ITEM_TYPE_INFO_ENVIRONMENT};
-use self::panel::{PanelItemTrait, ITEM_TYPE_INFO_PANEL};
-use super::fields::Field;
-use super::spatial::{find_spatial_parent, parse_transform, Spatial};
-use super::{Alias, Message, Node};
+use self::panel::PanelItemTrait;
+use super::alias::AliasList;
+use super::fields::{FIELD_ALIAS_INFO, Field};
+use super::spatial::Spatial;
+use super::{Alias, Aspect, AspectIdentifier, Node};
 use crate::core::client::Client;
-use crate::core::node_collections::LifeLinkedNodeMap;
+use crate::core::error::Result;
 use crate::core::registry::Registry;
+use crate::ensure;
 use crate::nodes::alias::AliasInfo;
-use crate::nodes::fields::find_field;
-use color_eyre::eyre::{ensure, eyre, Result};
-use lazy_static::lazy_static;
-use nanoid::nanoid;
+use crate::nodes::spatial::SPATIAL_ASPECT_ALIAS_INFO;
+use crate::nodes::spatial::Transform;
 use parking_lot::Mutex;
-use portable_atomic::Ordering;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::{deserialize, serialize};
-use stardust_xr::values::Transform;
 use std::hash::Hash;
 use std::sync::{Arc, Weak};
 
-lazy_static! {
-	static ref ITEM_ALIAS_LOCAL_SIGNALS: Vec<&'static str> = vec![
-		"get_bounds",
-		"get_transform",
-		"set_transform",
-		"set_spatial_parent",
-		"set_spatial_parent_in_place",
-		"set_zoneable",
-		"release",
-	];
-	static ref ITEM_ALIAS_LOCAL_METHODS: Vec<&'static str> = vec![];
-	static ref ITEM_ALIAS_REMOTE_SIGNALS: Vec<&'static str> = vec![];
-}
+stardust_xr_server_codegen::codegen_item_protocol!();
 
-pub fn capture(item: &Arc<Item>, acceptor: &Arc<ItemAcceptor>) {
+fn capture(item: &Arc<Item>, acceptor: &Arc<ItemAcceptor>) {
 	if item.captured_acceptor.lock().strong_count() > 0 {
 		release(item);
 	}
@@ -54,19 +36,21 @@ fn release(item: &Item) {
 		*captured_acceptor = Weak::default();
 		acceptor.handle_release(item);
 		if let Some(ui) = item.type_info.ui.lock().upgrade() {
-			ui.handle_release_item(item, &acceptor);
+			ui.handle_release_item(item, acceptor);
 		}
 	}
 }
 
 pub struct TypeInfo {
 	pub type_name: &'static str,
-	pub aliased_local_signals: Vec<&'static str>,
-	pub aliased_local_methods: Vec<&'static str>,
-	pub aliased_remote_signals: Vec<&'static str>,
+	pub alias_info: AliasInfo,
+	pub ui_node_id: u64,
 	pub ui: Mutex<Weak<ItemUI>>,
 	pub items: Registry<Item>,
 	pub acceptors: Registry<ItemAcceptor>,
+	pub add_ui_aspect: fn(node: &Node),
+	pub add_acceptor_aspect: fn(node: &Node),
+	pub new_acceptor_fn: fn(node: &Node, acceptor: &Arc<Node>, acceptor_field: &Arc<Node>),
 }
 impl Hash for TypeInfo {
 	fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
@@ -81,8 +65,7 @@ impl PartialEq for TypeInfo {
 impl Eq for TypeInfo {}
 
 pub struct Item {
-	node: Weak<Node>,
-	uid: String,
+	spatial: Arc<Spatial>,
 	type_info: &'static TypeInfo,
 	captured_acceptor: Mutex<Weak<ItemAcceptor>>,
 	pub specialization: ItemType,
@@ -90,24 +73,21 @@ pub struct Item {
 impl Item {
 	pub fn add_to(
 		node: &Arc<Node>,
-		uid: String,
 		type_info: &'static TypeInfo,
 		specialization: ItemType,
 	) -> Arc<Self> {
 		let item = Item {
-			node: Arc::downgrade(node),
-			uid,
+			spatial: node.aspects.get::<Spatial>().unwrap(),
 			type_info,
 			captured_acceptor: Default::default(),
 			specialization,
 		};
 		let item = type_info.items.add(item);
 
-		node.add_local_signal("release", Item::release_flex);
 		if let Some(ui) = type_info.ui.lock().upgrade() {
 			ui.handle_create_item(&item);
 		}
-		let _ = node.item.set(item.clone());
+		node.add_aspect_raw(item.clone());
 
 		// if let Some(auto_acceptor) = node.get_client().and_then(|client| {
 		// 	client
@@ -121,44 +101,25 @@ impl Item {
 
 		item
 	}
-	fn make_alias_named(
-		&self,
-		client: &Arc<Client>,
-		parent: &str,
-		name: &str,
-	) -> Result<Arc<Node>> {
+	fn make_alias(&self, client: &Arc<Client>, alias_list: &AliasList) -> Result<Arc<Node>> {
 		Alias::create(
+			&self.spatial.node().unwrap(),
 			client,
-			parent,
-			name,
-			&self.node.upgrade().unwrap(),
-			AliasInfo {
-				server_signals: [
-					&self.type_info.aliased_local_signals,
-					ITEM_ALIAS_LOCAL_SIGNALS.as_slice(),
-				]
-				.concat(),
-				server_methods: [
-					&self.type_info.aliased_local_methods,
-					ITEM_ALIAS_LOCAL_METHODS.as_slice(),
-				]
-				.concat(),
-				client_signals: [
-					&self.type_info.aliased_remote_signals,
-					ITEM_ALIAS_REMOTE_SIGNALS.as_slice(),
-				]
-				.concat(),
-			},
+			self.type_info.alias_info.clone() + ITEM_ASPECT_ALIAS_INFO.clone(),
+			Some(alias_list),
 		)
 	}
-	fn make_alias(&self, client: &Arc<Client>, parent: &str) -> Result<Arc<Node>> {
-		self.make_alias_named(client, parent, &self.uid)
-	}
-
-	fn release_flex(node: &Node, _calling_client: Arc<Client>, _message: Message) -> Result<()> {
-		let item = node.get_aspect("Item", "item", |n| &n.item)?;
-		release(item);
-
+}
+impl AspectIdentifier for Item {
+	impl_aspect_for_item_aspect_id! {}
+}
+impl Aspect for Item {
+	impl_aspect_for_item_aspect! {}
+}
+impl ItemAspect for Item {
+	fn release(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let item = node.get_aspect::<Item>()?;
+		release(&item);
 		Ok(())
 	}
 }
@@ -173,16 +134,20 @@ impl Drop for Item {
 }
 
 pub enum ItemType {
-	Camera(CameraItem),
-	Environment(EnvironmentItem),
+	Camera(Arc<CameraItem>),
 	Panel(Arc<dyn PanelItemTrait>),
 }
 impl ItemType {
-	fn serialize_start_data(&self, id: &str) -> Result<Message> {
+	fn send_ui_item_created(&self, node: &Node, item: &Arc<Node>) {
 		match self {
-			ItemType::Camera(c) => c.serialize_start_data(id),
-			ItemType::Environment(e) => e.serialize_start_data(id),
-			ItemType::Panel(p) => p.serialize_start_data(id),
+			ItemType::Camera(c) => c.send_ui_item_created(node, item),
+			ItemType::Panel(p) => p.send_ui_item_created(node, item),
+		}
+	}
+	fn send_acceptor_item_created(&self, node: &Node, item: &Arc<Node>) {
+		match self {
+			ItemType::Camera(c) => c.send_acceptor_item_created(node, item),
+			ItemType::Panel(p) => p.send_acceptor_item_created(node, item),
 		}
 	}
 }
@@ -200,9 +165,9 @@ impl ItemType {
 pub struct ItemUI {
 	node: Weak<Node>,
 	type_info: &'static TypeInfo,
-	item_aliases: LifeLinkedNodeMap<String>,
-	acceptor_aliases: LifeLinkedNodeMap<String>,
-	acceptor_field_aliases: LifeLinkedNodeMap<String>,
+	item_aliases: AliasList,
+	acceptor_aliases: AliasList,
+	acceptor_field_aliases: AliasList,
 }
 impl ItemUI {
 	fn add_to(node: &Arc<Node>, type_info: &'static TypeInfo) -> Result<()> {
@@ -214,12 +179,12 @@ impl ItemUI {
 		let ui = Arc::new(ItemUI {
 			node: Arc::downgrade(node),
 			type_info,
-			item_aliases: Default::default(),
-			acceptor_aliases: Default::default(),
-			acceptor_field_aliases: Default::default(),
+			item_aliases: AliasList::default(),
+			acceptor_aliases: AliasList::default(),
+			acceptor_field_aliases: AliasList::default(),
 		});
 		*type_info.ui.lock() = Arc::downgrade(&ui);
-		let _ = node.item_ui.set(ui.clone());
+		node.add_aspect_raw(ui.clone());
 
 		for item in type_info.items.get_valid_contents() {
 			ui.handle_create_item(&item);
@@ -229,62 +194,107 @@ impl ItemUI {
 		}
 		Ok(())
 	}
-	fn send_state(&self, state: &str, name: &str) {
-		let Ok(serialized_data) = serialize(name) else {return};
-		let _ = self
-			.node
-			.upgrade()
-			.unwrap()
-			.send_remote_signal(state, serialized_data);
-	}
 
 	fn handle_create_item(&self, item: &Item) {
-		let Some(node) = self.node.upgrade() else {return};
-		let Some(client) = node.get_client() else {return};
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		let Some(client) = node.get_client() else {
+			return;
+		};
 
-		if let Ok(alias_node) = item.make_alias(&client, &(node.get_path().to_string() + "/item")) {
-			self.item_aliases.add(item.uid.clone(), &alias_node);
-		}
+		let Ok(item_alias) = item.make_alias(&client, &self.item_aliases) else {
+			return;
+		};
 
-		let Ok(serialized_data) =  item.specialization.serialize_start_data(&item.uid) else {return};
-		let _ = node.send_remote_signal("create_item", serialized_data);
-	}
-	fn handle_destroy_item(&self, item: &Item) {
-		self.item_aliases.remove(&item.uid);
-		self.send_state("destroy_item", item.uid.as_str());
+		item.specialization.send_ui_item_created(&node, &item_alias);
 	}
 	fn handle_capture_item(&self, item: &Item, acceptor: &ItemAcceptor) {
-		let Some(node) = self.node.upgrade() else {return};
-
-		let Ok(message) = serialize((item.uid.as_str(), acceptor.uid.as_str())) else {return};
-		let _ = node.send_remote_signal("capture_item", message);
+		let Some(item_alias) = self.item_aliases.get_from_aspect(item) else {
+			return;
+		};
+		let Some(acceptor_alias) = self.acceptor_aliases.get_from_aspect(acceptor) else {
+			return;
+		};
+		let _ = item_ui_client::capture_item(
+			&self.node.upgrade().unwrap(),
+			item_alias.id,
+			acceptor_alias.id,
+		);
 	}
 	fn handle_release_item(&self, item: &Item, acceptor: &ItemAcceptor) {
-		let Some(node) = self.node.upgrade() else {return};
-
-		let Ok(message) = serialize((item.uid.as_str(), acceptor.uid.as_str())) else {return};
-		let _ = node.send_remote_signal("release_item", message);
+		let Some(item_alias) = self.item_aliases.get_from_aspect(item) else {
+			return;
+		};
+		let Some(acceptor_alias) = self.acceptor_aliases.get_from_aspect(acceptor) else {
+			return;
+		};
+		let _ = item_ui_client::release_item(
+			&self.node.upgrade().unwrap(),
+			item_alias.id,
+			acceptor_alias.id,
+		);
+	}
+	fn handle_destroy_item(&self, item: &Item) {
+		let Some(item_alias) = self
+			.item_aliases
+			.get_from_original_node(item.spatial.node.clone())
+		else {
+			return;
+		};
+		let _ = item_ui_client::destroy_item(&self.node.upgrade().unwrap(), item_alias.id);
+		self.item_aliases.remove_aspect(item);
 	}
 	fn handle_create_acceptor(&self, acceptor: &ItemAcceptor) {
-		let Some(node) = self.node.upgrade() else {return};
-		let Some(client) = node.get_client() else {return};
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		let Some(client) = node.get_client() else {
+			return;
+		};
 
-		let Ok((alias, field_alias)) = acceptor.make_aliases(
+		let Some(acceptor_node) = acceptor.spatial.node() else {
+			return;
+		};
+		let Ok(acceptor_alias) = Alias::create(
+			&acceptor_node,
 			&client,
-			&format!("/item/{}/acceptor", self.type_info.type_name),
-		) else {return};
-		self.acceptor_aliases.add(acceptor.uid.clone(), &alias);
-		self.acceptor_field_aliases
-			.add(acceptor.uid.clone(), &field_alias);
-		let Ok(message) = serialize(&acceptor.uid) else {return};
-		let _ = node.send_remote_signal("create_acceptor", message);
+			ITEM_ACCEPTOR_ASPECT_ALIAS_INFO.clone(),
+			Some(&self.acceptor_aliases),
+		) else {
+			return;
+		};
+
+		let Some(acceptor_field_node) = acceptor.field.spatial.node() else {
+			return;
+		};
+		let Ok(acceptor_field_alias) = Alias::create(
+			&acceptor_field_node,
+			&client,
+			FIELD_ALIAS_INFO.clone(),
+			Some(&self.acceptor_aliases),
+		) else {
+			return;
+		};
+
+		(acceptor.type_info.new_acceptor_fn)(&node, &acceptor_alias, &acceptor_field_alias);
 	}
 	fn handle_destroy_acceptor(&self, acceptor: &ItemAcceptor) {
-		self.send_state("destroy_acceptor", acceptor.uid.as_str());
-		self.acceptor_aliases.remove(&acceptor.uid);
-		self.acceptor_field_aliases.remove(&acceptor.uid);
+		let acceptor_alias = self.acceptor_aliases.get_from_aspect(acceptor).unwrap();
+		let _ = item_ui_client::destroy_acceptor(&self.node.upgrade().unwrap(), acceptor_alias.id);
+
+		self.acceptor_aliases
+			.remove_aspect(acceptor.spatial.as_ref());
+		self.acceptor_field_aliases
+			.remove_aspect(acceptor.field.as_ref());
 	}
 }
+impl AspectIdentifier for ItemUI {
+	impl_aspect_for_item_ui_aspect_id! {}
+}
+impl Aspect for ItemUI {
+	impl_aspect_for_item_ui_aspect! {}
+}
 impl Drop for ItemUI {
 	fn drop(&mut self) {
 		*self.type_info.ui.lock() = Weak::new();
@@ -292,88 +302,61 @@ impl Drop for ItemUI {
 }
 
 pub struct ItemAcceptor {
-	uid: String,
-	node: Weak<Node>,
+	spatial: Arc<Spatial>,
 	pub type_info: &'static TypeInfo,
 	field: Arc<Field>,
-	accepted_aliases: LifeLinkedNodeMap<String>,
+	accepted_aliases: AliasList,
 	accepted_registry: Registry<Item>,
 }
 impl ItemAcceptor {
 	fn add_to(node: &Arc<Node>, type_info: &'static TypeInfo, field: Arc<Field>) {
 		let acceptor = type_info.acceptors.add(ItemAcceptor {
-			uid: nanoid!(),
-			node: Arc::downgrade(node),
+			spatial: node.get_aspect::<Spatial>().unwrap(),
 			type_info,
 			field,
-			accepted_aliases: Default::default(),
+			accepted_aliases: AliasList::default(),
 			accepted_registry: Registry::new(),
 		});
-		node.add_local_signal("capture", ItemAcceptor::capture_flex);
 		if let Some(ui) = type_info.ui.lock().upgrade() {
 			ui.handle_create_acceptor(&acceptor);
 		}
-		let _ = node.item_acceptor.set(acceptor);
+		node.add_aspect_raw(acceptor.clone());
 	}
 
-	fn capture_flex(node: &Node, calling_client: Arc<Client>, message: Message) -> Result<()> {
-		if !node.enabled.load(Ordering::Relaxed) {
-			return Ok(());
-		}
-
-		let acceptor = node.item_acceptor.get().unwrap();
-		let item_path: &str = deserialize(message.as_ref())?;
-		let item_node = calling_client.get_node("Item", item_path)?;
-		let item = item_node.get_aspect("Item", "item", |n| &n.item)?;
-		capture(item, acceptor);
-
-		Ok(())
-	}
-
-	fn make_aliases(&self, client: &Arc<Client>, parent: &str) -> Result<(Arc<Node>, Arc<Node>)> {
-		let acceptor_node = &self.node.upgrade().unwrap();
-		let acceptor_alias = Alias::create(
-			client,
-			parent,
-			&self.uid,
-			acceptor_node,
-			AliasInfo {
-				server_signals: vec!["capture"],
-				..Default::default()
-			},
-		)?;
-
-		let acceptor_field_alias = Alias::create(
-			client,
-			acceptor_alias.get_path(),
-			"field",
-			&self.field.spatial_ref().node.upgrade().unwrap(),
-			AliasInfo::default(),
-		)?;
-
-		Ok((acceptor_alias, acceptor_field_alias))
-	}
 	fn handle_capture(&self, item: &Arc<Item>) {
-		let Some(node) = self.node.upgrade() else {return};
-		let Some(client) = node.get_client() else {return};
+		let Some(node) = self.spatial.node() else {
+			return;
+		};
+		let Some(client) = node.get_client() else {
+			return;
+		};
 
 		self.accepted_registry.add_raw(item);
-		if let Ok(alias_node) = item.make_alias(&client, &node.path) {
-			self.accepted_aliases.add(item.uid.clone(), &alias_node);
-		}
+		let Ok(alias_node) = item.make_alias(&client, &self.accepted_aliases) else {
+			return;
+		};
 
-		let Ok(serialized_data) =  item.specialization.serialize_start_data(&item.uid) else {return};
-		let _ = node.send_remote_signal("capture", serialized_data);
+		item.specialization
+			.send_acceptor_item_created(&node, &alias_node);
 	}
 	fn handle_release(&self, item: &Item) {
-		let Some(node) = self.node.upgrade() else {return};
-
 		self.accepted_registry.remove(item);
-		self.accepted_aliases.remove(&item.uid);
-		let Ok(message) = serialize(&item.uid) else {return};
-		let _ = node.send_remote_signal("release", message);
+		self.accepted_aliases.remove_aspect(item);
+
+		let Some(node) = self.spatial.node() else {
+			return;
+		};
+		let alias = self.accepted_aliases.get_from_aspect(item).unwrap();
+		let _ = item_acceptor_client::release_item(&node, alias.id);
 	}
 }
+impl AspectIdentifier for ItemAcceptor {
+	impl_aspect_for_item_acceptor_aspect_id! {}
+}
+impl Aspect for ItemAcceptor {
+	impl_aspect_for_item_acceptor_aspect! {}
+}
+impl ItemAcceptorAspect for ItemAcceptor {}
 impl Drop for ItemAcceptor {
 	fn drop(&mut self) {
 		self.type_info.acceptors.remove(self);
@@ -386,71 +369,38 @@ impl Drop for ItemAcceptor {
 	}
 }
 
-pub fn create_interface(client: &Arc<Client>) -> Result<()> {
-	let node = Node::create(client, "", "item", false);
-	node.add_local_signal("create_camera_item", camera::create_camera_item_flex);
-	node.add_local_signal(
-		"create_environment_item",
-		environment::create_environment_item_flex,
-	);
-	node.add_local_signal("register_item_ui", register_item_ui_flex);
-	node.add_local_signal("create_item_acceptor", create_item_acceptor_flex);
-	node.add_to_scenegraph().map(|_| ())
-}
-
-fn type_info(name: &str) -> Result<&'static TypeInfo> {
-	match name {
-		"environment" => Ok(&ITEM_TYPE_INFO_ENVIRONMENT),
-		#[cfg(feature = "wayland")]
-		"panel" => Ok(&ITEM_TYPE_INFO_PANEL),
-		_ => Err(eyre!("Invalid item type")),
-	}
-}
-
 pub fn register_item_ui_flex(
-	_node: &Node,
 	calling_client: Arc<Client>,
-	message: Message,
+	type_info: &'static TypeInfo,
 ) -> Result<()> {
-	#[derive(Deserialize)]
-	struct RegisterItemUIInfo<'a> {
-		item_type: &'a str,
-	}
-	let info: RegisterItemUIInfo = deserialize(message.as_ref())?;
-	let type_info = type_info(info.item_type)?;
-	let ui =
-		Node::create(&calling_client, "/item", type_info.type_name, true).add_to_scenegraph()?;
+	let ui = Node::from_id(&calling_client, type_info.ui_node_id, true).add_to_scenegraph()?;
 	ItemUI::add_to(&ui, type_info)?;
+	(type_info.add_ui_aspect)(&ui);
 	Ok(())
 }
-
 fn create_item_acceptor_flex(
-	_node: &Node,
 	calling_client: Arc<Client>,
-	message: Message,
+	id: u64,
+	parent: Arc<Node>,
+	transform: Transform,
+	type_info: &'static TypeInfo,
+	field: Arc<Node>,
 ) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateItemAcceptorInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		field_path: &'a str,
-		item_type: &'a str,
-	}
-	let info: CreateItemAcceptorInfo = deserialize(message.as_ref())?;
-	let space = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false);
-	let field = find_field(&calling_client, info.field_path)?;
-	let type_info = type_info(info.item_type)?;
+	let space = parent.get_aspect::<Spatial>()?;
+	let field = field.get_aspect::<Field>()?;
+	let transform = transform.to_mat4(true, true, false);
 
-	let node = Node::create(
-		&calling_client,
-		&format!("/item/{}/acceptor", type_info.type_name),
-		info.name,
-		true,
-	)
-	.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(space), transform, false)?;
+	let node = Node::from_id(&calling_client, id, true).add_to_scenegraph()?;
+	Spatial::add_to(&node, Some(space.clone()), transform, false);
 	ItemAcceptor::add_to(&node, type_info, field);
+	(type_info.add_acceptor_aspect)(&node);
+	Ok(())
+}
+
+fn acceptor_capture_item_flex(node: Arc<Node>, item: Arc<Node>) -> Result<()> {
+	let acceptor = node.get_aspect::<ItemAcceptor>()?;
+	let item = item.get_aspect::<Item>()?;
+	capture(&item, &acceptor);
+
 	Ok(())
 }

src/nodes/items/panel.rs

@@ -1,241 +1,121 @@
+use super::camera::CameraItemAcceptor;
+use super::{create_item_acceptor_flex, register_item_ui_flex};
+use crate::bail;
+use crate::core::error::Result;
+use crate::nodes::items::ITEM_ACCEPTOR_ASPECT_ALIAS_INFO;
+use crate::nodes::items::ITEM_ASPECT_ALIAS_INFO;
+use crate::nodes::{Aspect, AspectIdentifier};
 use crate::{
 	core::{
-		client::{get_env, state, Client, INTERNAL_CLIENT},
+		client::{Client, INTERNAL_CLIENT, get_env, state},
 		registry::Registry,
 	},
 	nodes::{
-		drawable::{model::ModelPart, Drawable},
+		Node,
+		drawable::model::ModelPart,
 		items::{Item, ItemType, TypeInfo},
-		spatial::Spatial,
-		Message, Node,
+		spatial::{Spatial, Transform},
 	},
 };
-use color_eyre::eyre::{bail, eyre, Result};
 use glam::Mat4;
 use lazy_static::lazy_static;
 use mint::Vector2;
-use nanoid::nanoid;
-use rustc_hash::FxHashMap;
-use serde::{
-	de::{Deserializer, Error, SeqAccess, Visitor},
-	ser::Serializer,
-	Deserialize, Serialize,
-};
-use stardust_xr::schemas::flex::{deserialize, serialize};
+use parking_lot::Mutex;
+use slotmap::{DefaultKey, Key, KeyData, SlotMap};
 use std::sync::{Arc, Weak};
-use tracing::debug;
+use tracing::{debug, info};
+
+stardust_xr_server_codegen::codegen_item_panel_protocol!();
+impl Default for Geometry {
+	fn default() -> Self {
+		Geometry {
+			origin: [0, 0].into(),
+			size: [0, 0].into(),
+		}
+	}
+}
 
 lazy_static! {
+	pub static ref KEYMAPS: Mutex<SlotMap<DefaultKey, String>> = Mutex::new(SlotMap::default());
 	pub static ref ITEM_TYPE_INFO_PANEL: TypeInfo = TypeInfo {
 		type_name: "panel",
-		aliased_local_signals: vec![
-			"apply_surface_material",
-			"close_toplevel",
-			"auto_size_toplevel",
-			"set_toplevel_size",
-			"set_toplevel_focused_visuals",
-			"pointer_motion",
-			"pointer_button",
-			"pointer_scroll",
-			"keyboard_keymap",
-			"keyboard_key",
-			"touch_down",
-			"touch_move",
-			"touch_up",
-			"reset_touches",
-		],
-		aliased_local_methods: vec![],
-		aliased_remote_signals: vec![
-			"toplevel_parent_changed",
-			"toplevel_title_changed",
-			"toplevel_app_id_changed",
-			"toplevel_fullscreen_active",
-			"toplevel_move_request",
-			"toplevel_resize_request",
-			"toplevel_size_changed",
-			"set_cursor",
-			"new_child",
-			"reposition_child",
-			"drop_child",
-		],
+		alias_info: PANEL_ITEM_ASPECT_ALIAS_INFO.clone(),
+		ui_node_id: INTERFACE_NODE_ID,
 		ui: Default::default(),
 		items: Registry::new(),
 		acceptors: Registry::new(),
+		add_acceptor_aspect: |node| {
+			node.add_aspect(PanelItemUi);
+		},
+		add_ui_aspect: |node| {
+			node.add_aspect(PanelItemAcceptor);
+		},
+		new_acceptor_fn: |node, acceptor, acceptor_field| {
+			let _ = panel_item_ui_client::create_acceptor(node, acceptor, acceptor_field);
+		}
 	};
 }
 
-/// An ID for a surface inside this panel item
-#[derive(Debug, Clone)]
-#[allow(dead_code)]
-pub enum SurfaceID {
-	Cursor,
-	Toplevel,
-	Child(String),
-}
-impl Default for SurfaceID {
-	fn default() -> Self {
-		Self::Toplevel
-	}
-}
-
-impl<'de> serde::Deserialize<'de> for SurfaceID {
-	fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
-		deserializer.deserialize_seq(SurfaceIDVisitor)
-	}
-}
-
-struct SurfaceIDVisitor;
-
-impl<'de> Visitor<'de> for SurfaceIDVisitor {
-	type Value = SurfaceID;
-
-	fn expecting(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-		f.write_str("idk")
-	}
-
-	fn visit_seq<A: SeqAccess<'de>>(self, mut seq: A) -> Result<Self::Value, A::Error> {
-		let Some(discrim) = seq.next_element()? else {
-            return Err(A::Error::missing_field("discrim"));
-        };
-
-		// idk if you wanna check for extraneous elements
-		// I didn't bother
-
-		match discrim {
-			"Cursor" => Ok(SurfaceID::Cursor),
-			"Toplevel" => Ok(SurfaceID::Toplevel),
-			"Child" => {
-				let Some(text) = seq.next_element()? else {
-                    return Err(A::Error::missing_field("child_text"));
-                };
-				Ok(SurfaceID::Child(text))
-			}
-			_ => Err(A::Error::unknown_variant(
-				discrim,
-				&["Cursor", "Toplevel", "Child"],
-			)),
-		}
-	}
-}
-
-impl serde::Serialize for SurfaceID {
-	fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
-		match self {
-			Self::Cursor => ["Cursor"].serialize(serializer),
-			Self::Toplevel => ["Toplevel"].serialize(serializer),
-			Self::Child(text) => ["Child", text].serialize(serializer),
-		}
-	}
-}
-
-/// The origin and size of the surface's "solid" part.
-#[derive(Debug, Serialize, Clone, Copy)]
-pub struct Geometry {
-	pub origin: Vector2<i32>,
-	pub size: Vector2<u32>,
-}
-/// The state of the panel item's toplevel.
-#[derive(Debug, Clone, Serialize)]
-pub struct ToplevelInfo {
-	/// The UID of the panel item of the parent of this toplevel, if it exists
-	pub parent: Option<String>,
-	/// Equivalent to the window title
-	pub title: Option<String>,
-	/// Application identifier, see <https://standards.freedesktop.org/desktop-entry-spec/>
-	pub app_id: Option<String>,
-	/// Current size in pixels
-	pub size: Vector2<u32>,
-	/// Recommended minimum size in pixels
-	pub min_size: Option<Vector2<u32>>,
-	/// Recommended maximum size in pixels
-	pub max_size: Option<Vector2<u32>>,
-	/// Surface geometry
-	pub logical_rectangle: Geometry,
-}
-
-/// Data on positioning a child
-#[derive(Debug, Clone, Serialize)]
-pub struct ChildInfo {
-	pub parent: SurfaceID,
-	pub geometry: Geometry,
-}
-
-/// The init data for the panel item.
-#[derive(Debug, Clone, Serialize)]
-pub struct PanelItemInitData {
-	/// The cursor, if applicable.
-	pub cursor: Option<Geometry>,
-	/// Size of the toplevel surface in pixels.
-	pub toplevel: ToplevelInfo,
-	/// Vector of childs that already exist
-	pub children: FxHashMap<String, ChildInfo>,
-	/// The surface, if any, that has exclusive input to the pointer.
-	pub pointer_grab: Option<SurfaceID>,
-	/// The surface, if any, that has exclusive input to the keyboard.
-	pub keyboard_grab: Option<SurfaceID>,
-}
-
 pub trait Backend: Send + Sync + 'static {
 	fn start_data(&self) -> Result<PanelItemInitData>;
 
-	fn apply_surface_material(&self, surface: SurfaceID, model_part: &Arc<ModelPart>);
+	fn apply_cursor_material(&self, model_part: &Arc<ModelPart>);
+	fn apply_surface_material(&self, surface: SurfaceId, model_part: &Arc<ModelPart>);
 
 	fn close_toplevel(&self);
 	fn auto_size_toplevel(&self);
 	fn set_toplevel_size(&self, size: Vector2<u32>);
 	fn set_toplevel_focused_visuals(&self, focused: bool);
 
-	fn pointer_motion(&self, surface: &SurfaceID, position: Vector2<f32>);
-	fn pointer_button(&self, surface: &SurfaceID, button: u32, pressed: bool);
+	fn pointer_motion(&self, surface: &SurfaceId, position: Vector2<f32>);
+	fn pointer_button(&self, surface: &SurfaceId, button: u32, pressed: bool);
 	fn pointer_scroll(
 		&self,
-		surface: &SurfaceID,
+		surface: &SurfaceId,
 		scroll_distance: Option<Vector2<f32>>,
 		scroll_steps: Option<Vector2<f32>>,
 	);
 
-	fn keyboard_keys(&self, surface: &SurfaceID, keymap_id: &str, keys: Vec<i32>);
+	fn keyboard_key(&self, surface: &SurfaceId, keymap_id: u64, key: u32, pressed: bool);
 
-	fn touch_down(&self, surface: &SurfaceID, id: u32, position: Vector2<f32>);
+	fn touch_down(&self, surface: &SurfaceId, id: u32, position: Vector2<f32>);
 	fn touch_move(&self, id: u32, position: Vector2<f32>);
 	fn touch_up(&self, id: u32);
-	fn reset_touches(&self);
+	fn reset_input(&self);
 }
 
 pub fn panel_item_from_node(node: &Node) -> Option<Arc<dyn PanelItemTrait>> {
-	let ItemType::Panel(panel_item) = &node.item.get()?.specialization else {return None};
+	let ItemType::Panel(panel_item) = &node.get_aspect::<Item>().ok()?.specialization else {
+		return None;
+	};
 	Some(panel_item.clone())
 }
 
-pub trait PanelItemTrait: Backend + Send + Sync + 'static {
-	fn uid(&self) -> &str;
-	fn serialize_start_data(&self, id: &str) -> Result<Message>;
+pub trait PanelItemTrait: Send + Sync + 'static {
+	fn backend(&self) -> &dyn Backend;
+	fn send_ui_item_created(&self, node: &Node, item: &Arc<Node>);
+	fn send_acceptor_item_created(&self, node: &Node, item: &Arc<Node>);
 }
 
-pub struct PanelItem<B: Backend + ?Sized> {
-	pub uid: String,
-	node: Weak<Node>,
+pub struct PanelItem<B: Backend> {
+	pub node: Weak<Node>,
 	pub backend: Box<B>,
 }
-impl<B: Backend + ?Sized> PanelItem<B> {
-	pub fn create(backend: Box<B>, pid: Option<i32>) -> Arc<PanelItem<B>> {
+impl<B: Backend> PanelItem<B> {
+	pub fn create(backend: Box<B>, pid: Option<i32>) -> (Arc<Node>, Arc<PanelItem<B>>) {
 		debug!(?pid, "Create panel item");
 
 		let startup_settings = pid
 			.and_then(|pid| get_env(pid).ok())
 			.and_then(|env| state(&env));
 
-		let uid = nanoid!();
-		let node = Node::create(&INTERNAL_CLIENT, "/item/panel/item", &uid, true)
-			.add_to_scenegraph()
-			.unwrap();
-		let spatial = Spatial::add_to(&node, None, Mat4::IDENTITY, false).unwrap();
+		let node = Arc::new(Node::generate(&INTERNAL_CLIENT, true));
+		let spatial = Spatial::add_to(&node, None, Mat4::IDENTITY, false);
 		if let Some(startup_settings) = &startup_settings {
 			spatial.set_local_transform(startup_settings.root);
 		}
 
 		let panel_item = Arc::new(PanelItem {
-			uid: uid.clone(),
 			node: Arc::downgrade(&node),
 			backend,
 		});
@@ -243,300 +123,405 @@ impl<B: Backend + ?Sized> PanelItem<B> {
 		let generic_panel_item: Arc<dyn PanelItemTrait> = panel_item.clone();
 		Item::add_to(
 			&node,
-			uid,
 			&ITEM_TYPE_INFO_PANEL,
 			ItemType::Panel(generic_panel_item),
 		);
+		node.add_aspect_raw(panel_item.clone());
 
-		node.add_local_signal("apply_surface_material", Self::apply_surface_material_flex);
-		node.add_local_signal("close_toplevel", Self::close_toplevel_flex);
-		node.add_local_signal("auto_size_toplevel", Self::auto_size_toplevel_flex);
-		node.add_local_signal(
-			"set_toplevel_size_changed",
-			Self::set_toplevel_size_changed_flex,
-		);
-
-		node.add_local_signal("pointer_motion", Self::pointer_motion_flex);
-		node.add_local_signal("pointer_button", Self::pointer_button_flex);
-		node.add_local_signal("pointer_scroll", Self::pointer_scroll_flex);
-
-		node.add_local_signal("keyboard_key", Self::keyboard_keys_flex);
-
-		node.add_local_signal("touch_down", Self::touch_down_flex);
-		node.add_local_signal("touch_move", Self::touch_move_flex);
-		node.add_local_signal("touch_up", Self::touch_up_flex);
-		node.add_local_signal("reset_touches", Self::reset_touches_flex);
-
-		panel_item
-	}
-	pub fn drop_toplevel(&self) {
-		let Some(node) = self.node.upgrade() else {return};
-		node.destroy();
+		(node, panel_item)
 	}
 }
 
 // Remote signals
-impl<B: Backend + ?Sized> PanelItem<B> {
-	pub fn toplevel_parent_changed(&self, parent: &str) {
-		let Some(node) = self.node.upgrade() else {return};
-		let _ = node.send_remote_signal("toplevel_parent_changed", serialize(parent).unwrap());
+#[allow(unused)]
+impl<B: Backend> PanelItem<B> {
+	pub fn toplevel_parent_changed(&self, parent: u64) {
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::toplevel_parent_changed(&node, parent);
 	}
 	pub fn toplevel_title_changed(&self, title: &str) {
-		let Some(node) = self.node.upgrade() else {return};
-		let _ = node.send_remote_signal("toplevel_title_changed", serialize(title).unwrap());
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::toplevel_title_changed(&node, title);
 	}
 	pub fn toplevel_app_id_changed(&self, app_id: &str) {
-		let Some(node) = self.node.upgrade() else {return};
-		let _ = node.send_remote_signal("toplevel_app_id_changed", serialize(app_id).unwrap());
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::toplevel_app_id_changed(&node, app_id);
 	}
 	pub fn toplevel_fullscreen_active(&self, active: bool) {
-		let Some(node) = self.node.upgrade() else {return};
-		let _ = node.send_remote_signal("toplevel_fullscreen_active", serialize(active).unwrap());
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::toplevel_fullscreen_active(&node, active);
 	}
 	pub fn toplevel_move_request(&self) {
-		let Some(node) = self.node.upgrade() else {return};
-		let _ = node.send_remote_signal("toplevel_move_request", Vec::<u8>::new());
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::toplevel_move_request(&node);
 	}
 	pub fn toplevel_resize_request(&self, up: bool, down: bool, left: bool, right: bool) {
-		let Some(node) = self.node.upgrade() else {return};
-		let _ = node.send_remote_signal(
-			"toplevel_resize_request",
-			serialize((up, down, left, right)).unwrap(),
-		);
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::toplevel_resize_request(&node, up, down, left, right);
 	}
 	pub fn toplevel_size_changed(&self, size: Vector2<u32>) {
-		let Some(node) = self.node.upgrade() else {return};
-		let _ = node.send_remote_signal("toplevel_size_changed", serialize(size).unwrap());
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::toplevel_size_changed(&node, size);
 	}
 
 	pub fn set_cursor(&self, geometry: Option<Geometry>) {
-		let Some(node) = self.node.upgrade() else {return};
-		let _ = node.send_remote_signal("set_cursor", serialize(geometry).unwrap());
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		if let Some(geometry) = geometry {
+			panel_item_client::set_cursor(&node, &geometry);
+		} else {
+			panel_item_client::hide_cursor(&node);
+		}
 	}
 
-	pub fn new_child(&self, uid: &str, info: ChildInfo) {
-		let Some(node) = self.node.upgrade() else {return};
-		let _ = node.send_remote_signal("new_child", serialize((uid, info)).unwrap());
+	pub fn create_child(&self, id: u64, info: &ChildInfo) {
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::create_child(&node, id, info);
 	}
-	pub fn reposition_child(&self, uid: &str, geometry: Geometry) {
-		let Some(node) = self.node.upgrade() else {return};
-		let _ = node.send_remote_signal("reposition_child", serialize((uid, geometry)).unwrap());
+	pub fn reposition_child(&self, id: u64, geometry: &Geometry) {
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::reposition_child(&node, id, geometry);
 	}
-	pub fn drop_child(&self, uid: &str) {
-		let Some(node) = self.node.upgrade() else {return};
-		let _ = node.send_remote_signal("drop_child", serialize(uid).unwrap());
+	pub fn destroy_child(&self, id: u64) {
+		let Some(node) = self.node.upgrade() else {
+			return;
+		};
+		panel_item_client::destroy_child(&node, id);
 	}
 }
-// Local signals
-macro_rules! flex_no_args {
-	($fn_name: ident, $trait_fn: ident) => {
-		fn $fn_name(node: &Node, _calling_client: Arc<Client>, _message: Message) -> Result<()> {
-			let Some(panel_item) = panel_item_from_node(node) else { return Ok(()) };
-			panel_item.$trait_fn();
-			Ok(())
-		}
-	};
+impl<B: Backend> AspectIdentifier for PanelItem<B> {
+	impl_aspect_for_panel_item_aspect_id! {}
 }
-macro_rules! flex_deserialize {
-	($fn_name: ident, $trait_fn: ident) => {
-		fn $fn_name(node: &Node, _calling_client: Arc<Client>, message: Message) -> Result<()> {
-			let Some(panel_item) = panel_item_from_node(node) else { return Ok(()) };
-			panel_item.$trait_fn(deserialize(message.as_ref())?);
-			Ok(())
-		}
-	};
+impl<B: Backend> Aspect for PanelItem<B> {
+	impl_aspect_for_panel_item_aspect! {}
 }
-impl<B: Backend + ?Sized> PanelItem<B> {
-	fn apply_surface_material_flex(
-		node: &Node,
+#[allow(unused)]
+impl<B: Backend> PanelItemAspect for PanelItem<B> {
+	#[doc = "Apply the cursor as a material to a model."]
+	fn apply_cursor_material(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		model_part: Arc<Node>,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		let model_part = model_part.get_aspect::<ModelPart>()?;
+
+		panel_item.backend().apply_cursor_material(&model_part);
+		Ok(())
+	}
+
+	#[doc = "Apply a surface's visuals as a material to a model."]
+	fn apply_surface_material(
+		node: Arc<Node>,
 		calling_client: Arc<Client>,
-		message: Message,
+		surface: SurfaceId,
+		model_part: Arc<Node>,
 	) -> Result<()> {
-		let Some(panel_item) = panel_item_from_node(node) else { return Ok(()) };
-
-		#[derive(Debug, Deserialize)]
-		struct SurfaceMaterialInfo<'a> {
-			surface: SurfaceID,
-			model_node_path: &'a str,
-		}
-
-		let info: SurfaceMaterialInfo = deserialize(message.as_ref())?;
-
-		let model_node = calling_client
-			.scenegraph
-			.get_node(info.model_node_path)
-			.ok_or_else(|| eyre!("Model node not found"))?;
-		let Some(Drawable::ModelPart(model_part)) = model_node.drawable.get() else {bail!("Node is not a model")};
-		debug!(?info, "Apply surface material");
-
-		panel_item.apply_surface_material(info.surface, model_part);
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		let model_part = model_part.get_aspect::<ModelPart>()?;
 
+		panel_item
+			.backend()
+			.apply_surface_material(surface, &model_part);
 		Ok(())
 	}
 
-	flex_no_args!(close_toplevel_flex, close_toplevel);
-	flex_no_args!(auto_size_toplevel_flex, auto_size_toplevel);
-	flex_deserialize!(set_toplevel_size_changed_flex, set_toplevel_size);
+	#[doc = "Try to close the toplevel.\n        \n        The panel item UI handler or panel item acceptor will drop the panel item if this succeeds."]
+	fn close_toplevel(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().close_toplevel();
+		Ok(())
+	}
 
-	fn pointer_motion_flex(
-		node: &Node,
+	#[doc = "Request a resize of the surface to whatever size the 2D app wants."]
+	fn auto_size_toplevel(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().auto_size_toplevel();
+		Ok(())
+	}
+
+	#[doc = "Request a resize of the surface (in pixels)."]
+	fn set_toplevel_size(
+		node: Arc<Node>,
 		_calling_client: Arc<Client>,
-		message: Message,
+		size: mint::Vector2<u32>,
 	) -> Result<()> {
-		let Some(panel_item) = panel_item_from_node(node) else { return Ok(()) };
-
-		let (surface_id, position): (SurfaceID, Vector2<f32>) = deserialize(message.as_ref())?;
-		debug!(?surface_id, ?position, "Pointer deactivate");
-
-		panel_item.pointer_motion(&surface_id, position);
-
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().set_toplevel_size(size);
 		Ok(())
 	}
-	fn pointer_button_flex(
-		node: &Node,
+
+	#[doc = "Tell the toplevel to appear focused visually if true, or unfocused if false."]
+	fn set_toplevel_focused_visuals(
+		node: Arc<Node>,
 		_calling_client: Arc<Client>,
-		message: Message,
+		focused: bool,
 	) -> Result<()> {
-		let Some(panel_item) = panel_item_from_node(node) else { return Ok(()) };
-
-		let (surface_id, button, state): (SurfaceID, u32, u32) = deserialize(message.as_ref())?;
-		debug!(?surface_id, button, state, "Pointer button");
-
-		panel_item.pointer_button(&surface_id, button, state != 0);
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().set_toplevel_focused_visuals(focused);
 		Ok(())
 	}
-	fn pointer_scroll_flex(
-		node: &Node,
+
+	#[doc = "Send an event to set the pointer's position (in pixels, relative to top-left of surface). This will activate the pointer."]
+	fn pointer_motion(
+		node: Arc<Node>,
 		_calling_client: Arc<Client>,
-		message: Message,
+		surface: SurfaceId,
+		position: mint::Vector2<f32>,
 	) -> Result<()> {
-		let Some(panel_item) = panel_item_from_node(node) else { return Ok(()) };
-
-		#[derive(Debug, Deserialize)]
-		struct PointerScrollInfo {
-			surface_id: SurfaceID,
-			axis_continuous: Option<Vector2<f32>>,
-			axis_discrete: Option<Vector2<f32>>,
-		}
-		let info: PointerScrollInfo = deserialize(message.as_ref())?;
-		debug!(?info, "Pointer scroll");
-
-		panel_item.pointer_scroll(&info.surface_id, info.axis_continuous, info.axis_discrete);
-
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().pointer_motion(&surface, position);
 		Ok(())
 	}
 
-	fn keyboard_keys_flex(
-		node: &Node,
+	#[doc = "Send an event to set a pointer button's state if the pointer's active. The `button` is from the `input_event_codes` crate (e.g. BTN_LEFT for left click)."]
+	fn pointer_button(
+		node: Arc<Node>,
 		_calling_client: Arc<Client>,
-		message: Message,
+		surface: SurfaceId,
+		button: u32,
+		pressed: bool,
 	) -> Result<()> {
-		let Some(panel_item) = panel_item_from_node(node) else { return Ok(()) };
-		let (surface_id, keymap_id, keys): (SurfaceID, &str, Vec<i32>) =
-			deserialize(message.as_ref())?;
-		debug!(?keys, "Set keyboard key state");
-
-		panel_item.keyboard_keys(&surface_id, keymap_id, keys);
-
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item
+			.backend()
+			.pointer_button(&surface, button, pressed);
 		Ok(())
 	}
-	pub fn grab_keyboard(&self, sid: Option<SurfaceID>) {
-		let Some(node) = self.node.upgrade() else {return};
 
-		let Ok(message) = serialize(sid) else {return};
-		let _ = node.send_remote_signal("grab_keyboard", message);
-	}
-
-	fn touch_down_flex(node: &Node, _calling_client: Arc<Client>, message: Message) -> Result<()> {
-		let Some(panel_item) = panel_item_from_node(node) else { return Ok(()) };
-
-		let (surface_id, id, position): (SurfaceID, u32, Vector2<f32>) =
-			deserialize(message.as_ref())?;
-		debug!(?surface_id, id, ?position, "Touch down");
-
-		panel_item.touch_down(&surface_id, id, position);
-
-		Ok(())
-	}
-	fn touch_move_flex(node: &Node, _calling_client: Arc<Client>, message: Message) -> Result<()> {
-		let Some(panel_item) = panel_item_from_node(node) else { return Ok(()) };
-
-		let (id, position): (u32, Vector2<f32>) = deserialize(message.as_ref())?;
-		debug!(?position, "Touch move");
-
-		panel_item.touch_move(id, position);
-
-		Ok(())
-	}
-	flex_deserialize!(touch_up_flex, touch_up);
-	flex_no_args!(reset_touches_flex, reset_touches);
-}
-impl<B: Backend + ?Sized> PanelItemTrait for PanelItem<B> {
-	fn uid(&self) -> &str {
-		&self.uid
-	}
-
-	fn serialize_start_data(&self, id: &str) -> Result<Message> {
-		Ok(serialize((id, self.start_data()?))?.into())
-	}
-}
-impl<B: Backend + ?Sized> Backend for PanelItem<B> {
-	fn start_data(&self) -> Result<PanelItemInitData> {
-		self.backend.start_data()
-	}
-
-	fn apply_surface_material(&self, surface: SurfaceID, model_part: &Arc<ModelPart>) {
-		self.backend.apply_surface_material(surface, model_part)
-	}
-
-	fn close_toplevel(&self) {
-		self.backend.close_toplevel()
-	}
-	fn auto_size_toplevel(&self) {
-		self.backend.auto_size_toplevel()
-	}
-	fn set_toplevel_size(&self, size: Vector2<u32>) {
-		self.backend.set_toplevel_size(size)
-	}
-	fn set_toplevel_focused_visuals(&self, focused: bool) {
-		self.backend.set_toplevel_focused_visuals(focused)
-	}
-
-	fn pointer_motion(&self, surface: &SurfaceID, position: Vector2<f32>) {
-		self.backend.pointer_motion(surface, position)
-	}
-	fn pointer_button(&self, surface: &SurfaceID, button: u32, pressed: bool) {
-		self.backend.pointer_button(surface, button, pressed)
-	}
+	#[doc = "Send an event to scroll the pointer if it's active.\nScroll distance is a value in pixels corresponding to the `distance` the surface should be scrolled.\nScroll steps is a value in columns/rows corresponding to the wheel clicks of a mouse or such. This also supports fractions of a wheel click."]
 	fn pointer_scroll(
-		&self,
-		surface: &SurfaceID,
-		scroll_distance: Option<Vector2<f32>>,
-		scroll_steps: Option<Vector2<f32>>,
-	) {
-		self.backend
-			.pointer_scroll(surface, scroll_distance, scroll_steps)
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		surface: SurfaceId,
+		scroll_distance: mint::Vector2<f32>,
+		scroll_steps: mint::Vector2<f32>,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item
+			.backend()
+			.pointer_scroll(&surface, Some(scroll_distance), Some(scroll_steps));
+		Ok(())
 	}
 
-	fn keyboard_keys(&self, surface: &SurfaceID, keymap_id: &str, keys: Vec<i32>) {
-		self.backend.keyboard_keys(surface, keymap_id, keys)
+	#[doc = "Send an event to stop scrolling the pointer."]
+	fn pointer_stop_scroll(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		surface: SurfaceId,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().pointer_scroll(&surface, None, None);
+		Ok(())
 	}
 
-	fn touch_down(&self, surface: &SurfaceID, id: u32, position: Vector2<f32>) {
-		self.backend.touch_down(surface, id, position)
+	#[doc = "Send a series of key presses and releases (positive keycode for pressed, negative for released)."]
+	fn keyboard_key(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		surface: SurfaceId,
+		keymap_id: u64,
+		key: u32,
+		pressed: bool,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item
+			.backend()
+			.keyboard_key(&surface, keymap_id, key, pressed);
+		Ok(())
 	}
-	fn touch_move(&self, id: u32, position: Vector2<f32>) {
-		self.backend.touch_move(id, position)
+
+	#[doc = "Put a touch down on this surface with the unique ID `uid` at `position` (in pixels) from top left corner of the surface."]
+	fn touch_down(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		surface: SurfaceId,
+		uid: u32,
+		position: mint::Vector2<f32>,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().touch_down(&surface, uid, position);
+		Ok(())
 	}
-	fn touch_up(&self, id: u32) {
-		self.backend.touch_up(id)
+
+	#[doc = "Move an existing touch point."]
+	fn touch_move(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		uid: u32,
+		position: mint::Vector2<f32>,
+	) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().touch_move(uid, position);
+		Ok(())
 	}
-	fn reset_touches(&self) {
-		self.backend.reset_touches()
+
+	#[doc = "Release a touch from its surface."]
+	fn touch_up(node: Arc<Node>, _calling_client: Arc<Client>, uid: u32) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().touch_up(uid);
+		Ok(())
+	}
+
+	#[doc = "Reset all input, such as pressed keys and pointer clicks and touches. Useful for when it's newly captured into an item acceptor to make sure no input gets stuck."]
+	fn reset_input(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let Some(panel_item) = panel_item_from_node(&node) else {
+			return Ok(());
+		};
+		panel_item.backend().reset_input();
+		Ok(())
 	}
 }
-impl<B: Backend + ?Sized> Drop for PanelItem<B> {
+
+pub struct PanelItemUi;
+impl AspectIdentifier for PanelItemUi {
+	impl_aspect_for_panel_item_ui_aspect_id! {}
+}
+impl Aspect for PanelItemUi {
+	impl_aspect_for_panel_item_ui_aspect! {}
+}
+impl PanelItemUiAspect for PanelItemUi {}
+
+pub struct PanelItemAcceptor;
+impl AspectIdentifier for PanelItemAcceptor {
+	impl_aspect_for_panel_item_acceptor_aspect_id! {}
+}
+impl Aspect for PanelItemAcceptor {
+	impl_aspect_for_panel_item_acceptor_aspect! {}
+}
+impl PanelItemAcceptorAspect for PanelItemAcceptor {
+	fn capture_item(node: Arc<Node>, _calling_client: Arc<Client>, item: Arc<Node>) -> Result<()> {
+		super::acceptor_capture_item_flex(node, item)
+	}
+}
+
+impl<B: Backend> PanelItemTrait for PanelItem<B> {
+	fn backend(&self) -> &dyn Backend {
+		self.backend.as_ref()
+	}
+	fn send_ui_item_created(&self, node: &Node, item: &Arc<Node>) {
+		let Ok(init_data) = self.backend.start_data() else {
+			return;
+		};
+		let _ = panel_item_ui_client::create_item(node, item, init_data);
+	}
+	fn send_acceptor_item_created(&self, node: &Node, item: &Arc<Node>) {
+		let Ok(init_data) = self.backend.start_data() else {
+			return;
+		};
+		let _ = panel_item_acceptor_client::capture_item(node, item, init_data);
+	}
+}
+impl<B: Backend> Drop for PanelItem<B> {
 	fn drop(&mut self) {
 		// Dropped panel item, basically just a debug breakpoint place
+		info!("Dropped panel item");
+	}
+}
+
+impl InterfaceAspect for Interface {
+	#[doc = "Register this client to manage the items of a certain type and create default 3D UI for them."]
+	fn register_panel_item_ui(node: Arc<Node>, calling_client: Arc<Client>) -> Result<()> {
+		node.add_aspect(CameraItemAcceptor);
+		register_item_ui_flex(calling_client, &ITEM_TYPE_INFO_PANEL)
+	}
+
+	#[doc = "Create an item acceptor to allow temporary ownership of a given type of item. Creates a node at `/item/<item_type>/acceptor/<name>`."]
+	fn create_panel_item_acceptor(
+		node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		field: Arc<Node>,
+	) -> Result<()> {
+		node.add_aspect(PanelItemAcceptor);
+		create_item_acceptor_flex(
+			calling_client,
+			id,
+			parent,
+			transform,
+			&ITEM_TYPE_INFO_PANEL,
+			field,
+		)
+	}
+
+	async fn register_keymap(
+		_node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		keymap: String,
+	) -> Result<u64> {
+		let mut keymaps = KEYMAPS.lock();
+		if let Some(found_keymap_id) = keymaps
+			.iter()
+			.filter(|(_k, v)| *v == &keymap)
+			.map(|(k, _v)| k)
+			.last()
+		{
+			return Ok(found_keymap_id.data().as_ffi());
+		}
+
+		let key = keymaps.insert(keymap);
+		Ok(key.data().as_ffi())
+	}
+
+	async fn get_keymap(
+		_node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		keymap_id: u64,
+	) -> Result<String> {
+		let keymaps = KEYMAPS.lock();
+		let Some(keymap) = keymaps.get(KeyData::from_ffi(keymap_id).into()) else {
+			bail!("Could not find keymap. Try registering it");
+		};
+
+		Ok(keymap.clone())
 	}
 }

src/nodes/mod.rs

@@ -1,42 +1,29 @@
 pub mod alias;
 pub mod audio;
-pub mod data;
 pub mod drawable;
 pub mod fields;
-pub mod hmd;
 pub mod input;
 pub mod items;
 pub mod root;
 pub mod spatial;
 
-use color_eyre::eyre::{eyre, Result};
-use nanoid::nanoid;
-use once_cell::sync::OnceCell;
-use parking_lot::Mutex;
-use portable_atomic::{AtomicBool, Ordering};
-use rustc_hash::FxHashMap;
-use stardust_xr::messenger::MessageSenderHandle;
-use stardust_xr::scenegraph::ScenegraphError;
-use stardust_xr::schemas::flex::deserialize;
-use std::fmt::Debug;
-use std::future::Future;
-use std::os::fd::OwnedFd;
-use std::sync::{Arc, Weak};
-use std::vec::Vec;
-
+use self::alias::Alias;
 use crate::core::client::Client;
+use crate::core::error::{Result, ServerError};
 use crate::core::registry::Registry;
 use crate::core::scenegraph::MethodResponseSender;
-
-use self::alias::Alias;
-use self::audio::Sound;
-use self::data::{PulseReceiver, PulseSender};
-use self::drawable::Drawable;
-use self::fields::Field;
-use self::input::{InputHandler, InputMethod};
-use self::items::{Item, ItemAcceptor, ItemUI};
-use self::spatial::zone::Zone;
-use self::spatial::Spatial;
+use dashmap::DashMap;
+use serde::{Serialize, de::DeserializeOwned};
+use spatial::Spatial;
+use stardust_xr::messenger::MessageSenderHandle;
+use stardust_xr::scenegraph::ScenegraphError;
+use stardust_xr::schemas::flex::{deserialize, serialize};
+use std::any::{Any, TypeId};
+use std::fmt::Debug;
+use std::os::fd::OwnedFd;
+use std::sync::atomic::{AtomicBool, Ordering};
+use std::sync::{Arc, Weak};
+use std::vec::Vec;
 
 #[derive(Default)]
 pub struct Message {
@@ -57,118 +44,110 @@ impl AsRef<[u8]> for Message {
 	}
 }
 
-pub type Signal = fn(&Node, Arc<Client>, Message) -> Result<()>;
-pub type Method = fn(&Node, Arc<Client>, Message, MethodResponseSender);
+stardust_xr_server_codegen::codegen_node_protocol!();
 
-pub struct Node {
-	pub enabled: Arc<AtomicBool>,
-	pub(super) uid: String,
-	path: String,
-	client: Weak<Client>,
-	message_sender_handle: Option<MessageSenderHandle>,
-	// trailing_slash_pos: usize,
-	local_signals: Mutex<FxHashMap<String, Signal>>,
-	local_methods: Mutex<FxHashMap<String, Method>>,
-	destroyable: bool,
+pub struct Owned;
+impl AspectIdentifier for Owned {
+	impl_aspect_for_owned_aspect_id! {}
+}
+impl Aspect for Owned {
+	impl_aspect_for_owned_aspect! {}
+}
+impl OwnedAspect for Owned {
+	fn set_enabled(node: Arc<Node>, _calling_client: Arc<Client>, enabled: bool) -> Result<()> {
+		node.set_enabled(enabled);
+		Ok(())
+	}
 
-	pub alias: OnceCell<Arc<Alias>>,
-	aliases: Registry<Alias>,
-
-	pub spatial: OnceCell<Arc<Spatial>>,
-	pub field: OnceCell<Arc<Field>>,
-	pub zone: OnceCell<Arc<Zone>>,
-
-	// Data
-	pub pulse_sender: OnceCell<Arc<PulseSender>>,
-	pub pulse_receiver: OnceCell<Arc<PulseReceiver>>,
-
-	// Drawable
-	pub drawable: OnceCell<Drawable>,
-
-	// Input
-	pub input_method: OnceCell<Arc<InputMethod>>,
-	pub input_handler: OnceCell<Arc<InputHandler>>,
-
-	// Item
-	pub item: OnceCell<Arc<Item>>,
-	pub item_acceptor: OnceCell<Arc<ItemAcceptor>>,
-	pub item_ui: OnceCell<Arc<ItemUI>>,
-
-	// Sound
-	pub sound: OnceCell<Arc<Sound>>,
+	fn destroy(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		if node.destroyable {
+			node.destroy();
+		}
+		Ok(())
+	}
 }
 
+pub struct OwnedNode(pub Arc<Node>);
+impl Drop for OwnedNode {
+	fn drop(&mut self) {
+		self.0.destroy();
+	}
+}
+
+pub struct Node {
+	enabled: AtomicBool,
+	id: u64,
+	client: Weak<Client>,
+	message_sender_handle: Option<MessageSenderHandle>,
+
+	aliases: Registry<Alias>,
+	aspects: Aspects,
+	destroyable: bool,
+}
 impl Node {
 	pub fn get_client(&self) -> Option<Arc<Client>> {
 		self.client.upgrade()
 	}
-	// pub fn get_name(&self) -> &str {
-	// 	&self.path[self.trailing_slash_pos + 1..]
-	// }
-	pub fn get_path(&self) -> &str {
-		self.path.as_str()
+	pub fn get_id(&self) -> u64 {
+		self.id
 	}
 
-	pub fn create(client: &Arc<Client>, parent: &str, name: &str, destroyable: bool) -> Self {
-		let mut path = parent.to_string();
-		path.push('/');
-		path.push_str(name);
+	pub fn generate(client: &Arc<Client>, destroyable: bool) -> Self {
+		Self::from_id(client, client.generate_id(), destroyable)
+	}
+	pub fn from_id(client: &Arc<Client>, id: u64, destroyable: bool) -> Self {
 		let node = Node {
-			enabled: Arc::new(AtomicBool::new(true)),
-			uid: nanoid!(),
+			enabled: AtomicBool::new(true),
 			client: Arc::downgrade(client),
 			message_sender_handle: client.message_sender_handle.clone(),
-			path,
-			// trailing_slash_pos: parent.len(),
-			local_signals: Default::default(),
-			local_methods: Default::default(),
+			id,
+			aliases: Default::default(),
+			aspects: Default::default(),
 			destroyable,
-
-			alias: OnceCell::new(),
-			aliases: Registry::new(),
-
-			spatial: OnceCell::new(),
-			field: OnceCell::new(),
-			zone: OnceCell::new(),
-			pulse_sender: OnceCell::new(),
-			pulse_receiver: OnceCell::new(),
-			drawable: OnceCell::new(),
-			input_method: OnceCell::new(),
-			input_handler: OnceCell::new(),
-			item: OnceCell::new(),
-			item_acceptor: OnceCell::new(),
-			item_ui: OnceCell::new(),
-			sound: OnceCell::new(),
 		};
-		node.add_local_signal("set_enabled", Node::set_enabled_flex);
-		node.add_local_signal("destroy", Node::destroy_flex);
+		node.aspects.add(Owned);
 		node
 	}
 	pub fn add_to_scenegraph(self) -> Result<Arc<Node>> {
 		Ok(self
 			.get_client()
-			.ok_or_else(|| eyre!("Internal: Unable to get client"))?
+			.ok_or(ServerError::NoClient)?
 			.scenegraph
 			.add_node(self))
 	}
+	pub fn add_to_scenegraph_owned(self) -> Result<OwnedNode> {
+		Ok(OwnedNode(
+			self.get_client()
+				.ok_or(ServerError::NoClient)?
+				.scenegraph
+				.add_node(self),
+		))
+	}
+	pub fn enabled(&self) -> bool {
+		self.enabled.load(Ordering::Relaxed)
+			&& if let Ok(spatial) = self.get_aspect::<Spatial>() {
+				spatial
+					.global_transform()
+					.to_scale_rotation_translation()
+					.0
+					.length_squared()
+					> 0.0
+			} else {
+				true
+			}
+	}
+	pub fn set_enabled(&self, enabled: bool) {
+		self.enabled.store(enabled, Ordering::Relaxed)
+	}
 	pub fn destroy(&self) {
 		if let Some(client) = self.get_client() {
-			client.scenegraph.remove_node(self.get_path());
+			client.scenegraph.remove_node(self.get_id());
 		}
 	}
 
-	pub fn set_enabled_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		message: Message,
-	) -> Result<()> {
-		node.enabled
-			.store(deserialize(message.as_ref())?, Ordering::Relaxed);
-		Ok(())
-	}
 	// very much up for debate if we should allow this, as you can match objects using this
 	// pub fn get_client_pid_flex(
-	// 	node: &Node,
+	// 	node: Arc<Node>,
 	// 	_calling_client: Arc<Client>,
 	// 	_message: Message,
 	// ) -> Result<Message> {
@@ -179,75 +158,58 @@ impl Node {
 	// 	let pid = client.pid.ok_or_else(|| eyre!("Client PID is unknown"))?;
 	// 	Ok(serialize(pid)?.into())
 	// }
-	pub fn destroy_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		_message: Message,
-	) -> Result<()> {
-		if node.destroyable {
-			node.destroy();
-		}
-		Ok(())
-	}
 
-	pub fn add_local_signal(&self, name: &str, signal: Signal) {
-		self.local_signals.lock().insert(name.to_string(), signal);
+	pub fn add_aspect<A: AspectIdentifier>(&self, aspect: A) -> Arc<A> {
+		self.aspects.add(aspect)
 	}
-	pub fn add_local_method(&self, name: &str, method: Method) {
-		self.local_methods.lock().insert(name.to_string(), method);
+	pub fn add_aspect_raw<A: AspectIdentifier>(&self, aspect: Arc<A>) {
+		self.aspects.add_raw(aspect)
 	}
-
-	pub fn get_aspect<F, T>(
-		&self,
-		node_name: &'static str,
-		aspect_type: &'static str,
-		aspect_fn: F,
-	) -> Result<&T>
-	where
-		F: FnOnce(&Node) -> &OnceCell<T>,
-	{
-		aspect_fn(self)
-			.get()
-			.ok_or_else(|| eyre!("{} is not a {} node", node_name, aspect_type))
+	pub fn get_aspect<A: AspectIdentifier>(&self) -> Result<Arc<A>> {
+		self.aspects.get()
 	}
 
 	pub fn send_local_signal(
-		&self,
+		self: Arc<Self>,
 		calling_client: Arc<Client>,
-		method: &str,
+		aspect_id: u64,
+		method: u64,
 		message: Message,
 	) -> Result<(), ScenegraphError> {
-		if let Some(alias) = self.alias.get() {
-			if !alias.info.server_signals.iter().any(|e| e == &method) {
-				return Err(ScenegraphError::SignalNotFound);
+		if let Ok(alias) = self.get_aspect::<Alias>() {
+			if !alias.info.server_signals.iter().any(|e| *e == method) {
+				return Err(ScenegraphError::MemberNotFound);
 			}
 			alias
 				.original
 				.upgrade()
 				.ok_or(ScenegraphError::BrokenAlias)?
-				.send_local_signal(calling_client, method, message)
+				.send_local_signal(calling_client, aspect_id, method, message)
 		} else {
-			let signal = self
-				.local_signals
-				.lock()
-				.get(method)
-				.cloned()
-				.ok_or(ScenegraphError::SignalNotFound)?;
-			signal(self, calling_client, message).map_err(|error| ScenegraphError::SignalError {
-				error: error.to_string(),
-			})
+			let aspect = self
+				.aspects
+				.0
+				.get(&aspect_id)
+				.ok_or(ScenegraphError::AspectNotFound)?
+				.clone();
+			aspect
+				.run_signal(calling_client, self.clone(), method, message)
+				.map_err(|error| ScenegraphError::MemberError {
+					error: error.to_string(),
+				})
 		}
 	}
 	pub fn execute_local_method(
-		&self,
+		self: Arc<Self>,
 		calling_client: Arc<Client>,
-		method: &str,
+		aspect_id: u64,
+		method: u64,
 		message: Message,
 		response: MethodResponseSender,
 	) {
-		if let Some(alias) = self.alias.get() {
-			if !alias.info.server_methods.iter().any(|e| e == &method) {
-				response.send(Err(ScenegraphError::MethodNotFound));
+		if let Ok(alias) = self.get_aspect::<Alias>() {
+			if !alias.info.server_methods.iter().any(|e| *e == method) {
+				response.send(Err(ScenegraphError::MemberNotFound));
 				return;
 			}
 			let Some(alias) = alias.original.upgrade() else {
@@ -256,6 +218,7 @@ impl Node {
 			};
 			alias.execute_local_method(
 				calling_client,
+				aspect_id,
 				method,
 				Message {
 					data: message.data.clone(),
@@ -264,14 +227,19 @@ impl Node {
 				response,
 			)
 		} else {
-			let Some(method) = self.local_methods.lock().get(method).cloned() else {
-				response.send(Err(ScenegraphError::MethodNotFound));
+			let Some(aspect) = self.aspects.0.get(&aspect_id).map(|v| v.clone()) else {
+				response.send(Err(ScenegraphError::AspectNotFound));
 				return;
 			};
-			method(self, calling_client, message, response);
+			aspect.run_method(calling_client, self.clone(), method, message, response);
 		}
 	}
-	pub fn send_remote_signal(&self, method: &str, message: impl Into<Message>) -> Result<()> {
+	pub fn send_remote_signal(
+		&self,
+		aspect_id: u64,
+		method: u64,
+		message: impl Into<Message>,
+	) -> Result<()> {
 		let message = message.into();
 		self.aliases
 			.get_valid_contents()
@@ -281,6 +249,7 @@ impl Node {
 			.for_each(|node| {
 				// Beware! file descriptors will not be sent to aliases!!!
 				let _ = node.send_remote_signal(
+					aspect_id,
 					method,
 					Message {
 						data: message.data.clone(),
@@ -288,43 +257,39 @@ impl Node {
 					},
 				);
 			});
-		let path = self.path.clone();
-		let method = method.to_string();
 		if let Some(handle) = self.message_sender_handle.as_ref() {
-			handle.signal(path.as_str(), method.as_str(), &message.data, message.fds)?;
+			handle.signal(self.id, aspect_id, method, &message.data, message.fds)?;
 		}
 		Ok(())
 	}
-	pub fn execute_remote_method(
+	pub async fn execute_remote_method_typed<S: Serialize, D: DeserializeOwned>(
 		&self,
-		method: &str,
-		message: impl Into<Message>,
-	) -> Result<impl Future<Output = Result<Message>>> {
-		let message = message.into();
+		aspect_id: u64,
+		method: u64,
+		input: S,
+		fds: Vec<OwnedFd>,
+	) -> Result<(D, Vec<OwnedFd>)> {
 		let message_sender_handle = self
 			.message_sender_handle
 			.as_ref()
-			.ok_or(eyre!("Messenger does not exist for this node"))?;
+			.ok_or(ServerError::NoMessenger)?;
 
-		let future =
-			message_sender_handle.method(self.path.as_str(), method, &message.data, message.fds)?;
+		let serialized = serialize(input)?;
+		let result = message_sender_handle
+			.method(self.id, aspect_id, method, &serialized, fds)
+			.await?
+			.map_err(ServerError::RemoteMethodError)?;
 
-		Ok(async {
-			match future.await {
-				Ok(m) => {
-					let (data, fds) = m.into_components();
-					Ok(Message { data, fds })
-				}
-				Err(e) => Err(eyre!(e)),
-			}
-		})
+		let (message, fds) = result.into_components();
+		let deserialized: D = deserialize(&message)?;
+		Ok((deserialized, fds))
 	}
 }
 impl Debug for Node {
 	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
 		f.debug_struct("Node")
-			.field("uid", &self.uid)
-			.field("path", &self.path)
+			.field("id", &self.id)
+			.field("destroyable", &self.destroyable)
 			.finish()
 	}
 }
@@ -333,3 +298,53 @@ impl Drop for Node {
 		// Debug breakpoint
 	}
 }
+
+pub trait AspectIdentifier: Aspect {
+	const ID: u64;
+}
+pub trait Aspect: Any + Send + Sync + 'static {
+	fn as_any(self: Arc<Self>) -> Arc<dyn Any + Send + Sync + 'static>;
+	fn run_signal(
+		&self,
+		calling_client: Arc<Client>,
+		node: Arc<Node>,
+		signal: u64,
+		message: Message,
+	) -> Result<(), stardust_xr::scenegraph::ScenegraphError>;
+	fn run_method(
+		&self,
+		calling_client: Arc<Client>,
+		node: Arc<Node>,
+		method: u64,
+		message: Message,
+		response: MethodResponseSender,
+	);
+}
+
+#[derive(Default)]
+struct Aspects(DashMap<u64, Arc<dyn Aspect>>);
+impl Aspects {
+	fn add<A: AspectIdentifier>(&self, t: A) -> Arc<A> {
+		let aspect = Arc::new(t);
+		self.add_raw(aspect.clone());
+		aspect
+	}
+	fn add_raw<A: AspectIdentifier>(&self, aspect: Arc<A>) {
+		self.0.insert(A::ID, aspect);
+	}
+	fn get<A: Aspect + AspectIdentifier>(&self) -> Result<Arc<A>> {
+		self.0
+			.get(&A::ID)
+			// .cloned doesn't work for some reason
+			.map(|v| v.clone())
+			.map(|a| a.as_any())
+			.and_then(|a| Arc::downcast(a).ok())
+			.ok_or(ServerError::NoAspect(TypeId::of::<A>()))
+	}
+}
+impl Drop for Aspects {
+	fn drop(&mut self) {
+		// why would this be needed? do drop impls not run otherwise?
+		self.0.clear()
+	}
+}

src/nodes/root.rs

@@ -1,138 +1,105 @@
 use super::spatial::Spatial;
-use super::{Message, Node};
-use crate::core::client::Client;
-use crate::core::client_state::{ClientState, ClientStateInternal};
-use crate::core::registry::Registry;
-use crate::core::scenegraph::MethodResponseSender;
-use crate::wayland::WAYLAND_DISPLAY;
-use crate::STARDUST_INSTANCE;
-use color_eyre::eyre::Result;
+use super::{Aspect, AspectIdentifier, Node};
+use crate::bail;
+use crate::core::client::{CLIENTS, Client};
+use crate::core::client_state::ClientStateParsed;
+use crate::core::error::Result;
+use crate::nodes::spatial::SPATIAL_REF_ASPECT_ALIAS_INFO;
+use crate::session::connection_env;
 use glam::Mat4;
-use rustc_hash::FxHashMap;
-use stardust_xr::schemas::flex::{deserialize, serialize};
-use tracing::instrument;
-
-use std::future::Future;
-use std::sync::atomic::{AtomicBool, Ordering};
+use std::path::PathBuf;
 use std::sync::Arc;
+use std::time::Instant;
+use tracing::info;
 
-static ROOT_REGISTRY: Registry<Root> = Registry::new();
+stardust_xr_server_codegen::codegen_root_protocol!();
 
 pub struct Root {
-	pub node: Arc<Node>,
-	send_frame_event: AtomicBool,
+	node: Arc<Node>,
+	connect_instant: Instant,
 }
 impl Root {
-	pub fn create(client: &Arc<Client>) -> Result<Arc<Self>> {
-		let node = Node::create(client, "", "", false);
-		node.add_local_signal("subscribe_frame", Root::subscribe_frame_flex);
-		node.add_local_signal("set_base_prefixes", Root::set_base_prefixes_flex);
-		node.add_local_method("state_token", Root::state_token_flex);
-		node.add_local_method(
-			"get_connection_environment",
-			get_connection_environment_flex,
-		);
+	pub fn create(client: &Arc<Client>, transform: Mat4) -> Result<Arc<Self>> {
+		let node = Node::from_id(client, 0, false);
 		let node = node.add_to_scenegraph()?;
-		let _ = Spatial::add_to(&node, None, client.state.root, false);
-
-		Ok(ROOT_REGISTRY.add(Root {
-			node,
-			send_frame_event: AtomicBool::from(false),
-		}))
+		let _ = Spatial::add_to(&node, None, transform, false);
+		let root_aspect = node.add_aspect(Root {
+			node: node.clone(),
+			connect_instant: Instant::now(),
+		});
+		Ok(root_aspect)
 	}
 
-	fn subscribe_frame_flex(
-		_node: &Node,
-		calling_client: Arc<Client>,
-		_message: Message,
-	) -> Result<()> {
-		calling_client
-			.root
-			.get()
-			.unwrap()
-			.send_frame_event
-			.store(true, Ordering::Relaxed);
-		Ok(())
-	}
-
-	#[instrument(level = "debug")]
 	pub fn send_frame_events(delta: f64) {
-		if let Ok(data) = serialize((delta, 0.0)) {
-			for root in ROOT_REGISTRY.get_valid_contents() {
-				if root.send_frame_event.load(Ordering::Relaxed) {
-					let _ = root.node.send_remote_signal("frame", data.clone());
-				}
-			}
+		for client in CLIENTS.get_vec() {
+			let Some(root) = client.root.get() else {
+				continue;
+			};
+			let _ = root_client::frame(
+				&root.node,
+				&FrameInfo {
+					delta: delta as f32,
+					elapsed: root.connect_instant.elapsed().as_secs_f32(),
+				},
+			);
 		}
 	}
 
-	fn set_base_prefixes_flex(
-		_node: &Node,
-		calling_client: Arc<Client>,
-		message: Message,
-	) -> Result<()> {
-		*calling_client.base_resource_prefixes.lock() = deserialize(message.as_ref())?;
-		Ok(())
-	}
-
-	fn state_token_flex(
-		_node: &Node,
-		calling_client: Arc<Client>,
-		message: Message,
-		response: MethodResponseSender,
-	) {
-		response.wrap_sync(|| {
-			let state: ClientStateInternal = deserialize(message.as_ref())?;
-			let token = ClientState::from_deserialized(&calling_client, state).token();
-			Ok(serialize(token)?.into())
-		})
-	}
-
 	pub fn set_transform(&self, transform: Mat4) {
-		let spatial = self.node.spatial.get().unwrap();
-		spatial.set_spatial_parent(None).unwrap();
+		let spatial = self.node.get_aspect::<Spatial>().unwrap();
+		// spatial.set_spatial_parent(None).unwrap();
 		spatial.set_local_transform(transform);
 	}
-	pub fn save_state(&self) -> impl Future<Output = Result<ClientStateInternal>> {
-		let future = self
-			.node
-			.execute_remote_method("save_state", Message::default());
-		async move { Ok(deserialize(&future?.await?.data)?) }
+	pub async fn save_state(&self) -> Result<ClientState> {
+		Ok(root_client::save_state(&self.node).await?.0)
 	}
 }
+impl AspectIdentifier for Root {
+	impl_aspect_for_root_aspect_id! {}
+}
+impl Aspect for Root {
+	impl_aspect_for_root_aspect! {}
+}
+impl RootAspect for Root {
+	async fn get_state(_node: Arc<Node>, calling_client: Arc<Client>) -> Result<ClientState> {
+		let Some(state) = calling_client.state.get() else {
+			bail!("Couldn't get state");
+		};
+		Ok(state.clone())
+	}
 
-impl Drop for Root {
-	fn drop(&mut self) {
-		ROOT_REGISTRY.remove(self);
+	#[doc = "Get a hashmap of all the environment variables to connect a given app to the stardust server"]
+	async fn get_connection_environment(
+		_node: Arc<Node>,
+		_calling_client: Arc<Client>,
+	) -> Result<stardust_xr::values::Map<String, String>> {
+		Ok(connection_env())
+	}
+
+	#[doc = "Generate a client state token and return it back.\n\n When launching a new client, set the environment variable `STARDUST_STARTUP_TOKEN` to the returned string.\n Make sure the environment variable shows in `/proc/{pid}/environ` as that's the only reliable way to pass the value to the server (suggestions welcome).\n"]
+	async fn generate_state_token(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		state: ClientState,
+	) -> Result<String> {
+		Ok(ClientStateParsed::from_deserialized(&calling_client, state).token())
+	}
+
+	#[doc = "Set initial list of folders to look for namespaced resources in"]
+	fn set_base_prefixes(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		prefixes: Vec<String>,
+	) -> Result<()> {
+		info!(?calling_client, ?prefixes, "Set base prefixes");
+		*calling_client.base_resource_prefixes.lock() =
+			prefixes.into_iter().map(PathBuf::from).collect();
+		Ok(())
+	}
+
+	#[doc = "Cleanly disconnect from the server"]
+	fn disconnect(_node: Arc<Node>, calling_client: Arc<Client>) -> Result<()> {
+		calling_client.disconnect(Ok(()));
+		Ok(())
 	}
 }
-
-macro_rules! var_env_insert {
-	($env:ident, $name:ident) => {
-		$env.insert(stringify!($name).to_string(), $name.get().unwrap().clone());
-	};
-}
-pub fn get_connection_environment_flex(
-	_node: &Node,
-	_calling_client: Arc<Client>,
-	_message: Message,
-	response: MethodResponseSender,
-) {
-	response.wrap_sync(move || {
-		let mut env: FxHashMap<String, String> = FxHashMap::default();
-		var_env_insert!(env, STARDUST_INSTANCE);
-		#[cfg(feature = "wayland")]
-		{
-			var_env_insert!(env, WAYLAND_DISPLAY);
-			#[cfg(feature = "xwayland")]
-			var_env_insert!(env, DISPLAY);
-			env.insert("GDK_BACKEND".to_string(), "wayland".to_string());
-			env.insert("QT_QPA_PLATFORM".to_string(), "wayland".to_string());
-			env.insert("MOZ_ENABLE_WAYLAND".to_string(), "1".to_string());
-			env.insert("CLUTTER_BACKEND".to_string(), "wayland".to_string());
-			env.insert("SDL_VIDEODRIVER".to_string(), "wayland".to_string());
-		}
-
-		Ok(serialize(env)?.into())
-	});
-}

src/nodes/spatial/mod.rs

@@ -1,43 +1,70 @@
 pub mod zone;
 
-use self::zone::{create_zone_flex, Zone};
-use super::{Message, Node};
+use self::zone::Zone;
+use super::alias::Alias;
+use super::fields::{Field, FieldTrait};
+use super::{Aspect, AspectIdentifier};
+use crate::bail;
 use crate::core::client::Client;
+use crate::core::error::Result;
 use crate::core::registry::Registry;
-use crate::core::scenegraph::MethodResponseSender;
-use color_eyre::eyre::{ensure, eyre, Result};
-use glam::{vec3a, Mat4, Quat};
+use crate::nodes::{Node, OWNED_ASPECT_ALIAS_INFO};
+use color_eyre::eyre::OptionExt;
+use glam::{Mat4, Quat, Vec3, vec3a};
 use mint::Vector3;
-use nanoid::nanoid;
 use parking_lot::Mutex;
-use serde::Deserialize;
-use stardust_xr::schemas::flex::{deserialize, serialize};
-use stardust_xr::values::Transform;
+use rustc_hash::FxHashMap;
 use std::fmt::Debug;
-use std::ptr;
 use std::sync::{Arc, OnceLock, Weak};
-use stereokit::{bounds_grow_to_fit_box, Bounds};
+use std::{f32, ptr};
+use stereokit_rust::maths::Bounds;
+
+stardust_xr_server_codegen::codegen_spatial_protocol!();
+impl Transform {
+	pub fn to_mat4(&self, position: bool, rotation: bool, scale: bool) -> Mat4 {
+		let position = position
+			.then_some(self.translation)
+			.flatten()
+			.unwrap_or_else(|| Vector3::from([0.0; 3]));
+		let rotation = rotation
+			.then_some(self.rotation)
+			.flatten()
+			.unwrap_or_else(|| Quat::IDENTITY.into());
+		let scale = scale
+			.then_some(self.scale)
+			.flatten()
+			.unwrap_or_else(|| Vector3::from([1.0; 3]));
+
+		Mat4::from_scale_rotation_translation(scale.into(), rotation.into(), position.into())
+	}
+}
+impl AspectIdentifier for Zone {
+	impl_aspect_for_zone_aspect_id! {}
+}
+impl Aspect for Zone {
+	impl_aspect_for_zone_aspect! {}
+}
+
+lazy_static::lazy_static! {
+	pub static ref EXPORTED_SPATIALS: Mutex<FxHashMap<u64, Arc<Node>>> = Mutex::new(FxHashMap::default());
+}
 
 static ZONEABLE_REGISTRY: Registry<Spatial> = Registry::new();
 
 pub struct Spatial {
-	uid: String,
-	pub(super) node: Weak<Node>,
-	self_ref: Weak<Spatial>,
+	pub node: Weak<Node>,
 	parent: Mutex<Option<Arc<Spatial>>>,
 	old_parent: Mutex<Option<Arc<Spatial>>>,
-	pub(super) transform: Mutex<Mat4>,
+	transform: Mutex<Mat4>,
 	zone: Mutex<Weak<Zone>>,
 	children: Registry<Spatial>,
-	pub(super) bounding_box_calc: OnceLock<fn(&Node) -> Bounds>,
+	pub bounding_box_calc: OnceLock<fn(&Node) -> Bounds>,
 }
 
 impl Spatial {
 	pub fn new(node: Weak<Node>, parent: Option<Arc<Spatial>>, transform: Mat4) -> Arc<Self> {
-		Arc::new_cyclic(|self_ref| Spatial {
-			uid: nanoid!(),
+		Arc::new(Spatial {
 			node,
-			self_ref: self_ref.clone(),
 			parent: Mutex::new(parent),
 			old_parent: Mutex::new(None),
 			transform: Mutex::new(transform),
@@ -51,29 +78,17 @@ impl Spatial {
 		parent: Option<Arc<Spatial>>,
 		transform: Mat4,
 		zoneable: bool,
-	) -> Result<Arc<Spatial>> {
-		ensure!(
-			node.spatial.get().is_none(),
-			"Internal: Node already has a Spatial aspect!"
-		);
-		let spatial = Spatial::new(Arc::downgrade(node), parent, transform);
-		node.add_local_method("get_bounding_box", Spatial::get_bounding_box_flex);
-		node.add_local_method("get_transform", Spatial::get_transform_flex);
-		node.add_local_signal("set_transform", Spatial::set_transform_flex);
-		node.add_local_signal("set_spatial_parent", Spatial::set_spatial_parent_flex);
-		node.add_local_signal(
-			"set_spatial_parent_in_place",
-			Spatial::set_spatial_parent_in_place_flex,
-		);
-		node.add_local_signal("set_zoneable", Spatial::set_zoneable_flex);
-		node.add_local_method("field_distance", Spatial::field_distance_flex);
-		node.add_local_method("field_normal", Spatial::field_normal_flex);
-		node.add_local_method("field_closest_point", Spatial::field_closest_point_flex);
+	) -> Arc<Spatial> {
+		let spatial = Spatial::new(Arc::downgrade(node), parent.clone(), transform);
 		if zoneable {
 			ZONEABLE_REGISTRY.add_raw(&spatial);
 		}
-		let _ = node.spatial.set(spatial.clone());
-		Ok(spatial)
+		if let Some(parent) = parent {
+			parent.children.add_raw(&spatial);
+		}
+		node.add_aspect_raw(spatial.clone());
+		node.add_aspect(SpatialRef);
+		spatial
 	}
 
 	pub fn node(&self) -> Option<Arc<Node>> {
@@ -88,18 +103,16 @@ impl Spatial {
 
 	// the output bounds are probably way bigger than they need to be
 	pub fn get_bounding_box(&self) -> Bounds {
-		let Some(node) = self.node() else {return Bounds::default()};
+		let Some(node) = self.node() else {
+			return Bounds::default();
+		};
 		let mut bounds = self
 			.bounding_box_calc
 			.get()
 			.map(|b| (b)(&node))
 			.unwrap_or_default();
 		for child in self.children.get_valid_contents() {
-			bounds = bounds_grow_to_fit_box(
-				bounds,
-				child.get_bounding_box(),
-				Some(child.local_transform()),
-			);
+			bounds.grown_box(child.get_bounding_box(), child.local_transform());
 		}
 		bounds
 	}
@@ -108,10 +121,12 @@ impl Spatial {
 		*self.transform.lock()
 	}
 	pub fn global_transform(&self) -> Mat4 {
-		match self.get_parent() {
-			Some(value) => value.global_transform() * *self.transform.lock(),
-			None => *self.transform.lock(),
-		}
+		let parent_transform = self
+			.get_parent()
+			.as_deref()
+			.map(Self::global_transform)
+			.unwrap_or_default();
+		parent_transform * self.local_transform()
 	}
 	pub fn set_local_transform(&self, transform: Mat4) {
 		*self.transform.lock() = transform;
@@ -137,7 +152,7 @@ impl Spatial {
 		let (mut reference_space_scl, mut reference_space_rot, mut reference_space_pos) =
 			local_transform_in_reference_space.to_scale_rotation_translation();
 
-		if let Some(pos) = transform.position {
+		if let Some(pos) = transform.translation {
 			reference_space_pos = pos.into()
 		}
 		if let Some(rot) = transform.rotation {
@@ -177,275 +192,122 @@ impl Spatial {
 	fn get_parent(&self) -> Option<Arc<Spatial>> {
 		self.parent.lock().clone()
 	}
-	fn set_parent(&self, new_parent: Option<Arc<Spatial>>) {
+	fn set_parent(self: &Arc<Self>, new_parent: &Arc<Spatial>) {
 		if let Some(parent) = self.get_parent() {
 			parent.children.remove(self);
 		}
-		if let Some(new_parent) = &new_parent {
-			new_parent
-				.children
-				.add_raw(&self.self_ref.upgrade().unwrap());
-		}
+		new_parent.children.add_raw(self);
 
-		*self.parent.lock() = new_parent;
+		*self.parent.lock() = Some(new_parent.clone());
 	}
 
-	pub fn set_spatial_parent(&self, parent: Option<Arc<Spatial>>) -> Result<()> {
-		let is_ancestor = parent
-			.as_ref()
-			.map(|parent| self.is_ancestor_of(parent.clone()))
-			.unwrap_or(false);
-		if is_ancestor {
-			return Err(eyre!("Setting spatial parent would cause a loop"));
+	pub fn set_spatial_parent(self: &Arc<Self>, parent: &Arc<Spatial>) -> Result<()> {
+		if self.is_ancestor_of(parent.clone()) {
+			bail!("Setting spatial parent would cause a loop");
 		}
 		self.set_parent(parent);
 
 		Ok(())
 	}
-
-	pub fn set_spatial_parent_in_place(&self, parent: Option<Arc<Spatial>>) -> Result<()> {
-		let is_ancestor = parent
-			.as_ref()
-			.map(|parent| self.is_ancestor_of(parent.clone()))
-			.unwrap_or(false);
-		if is_ancestor {
-			return Err(eyre!("Setting spatial parent would cause a loop"));
+	pub fn set_spatial_parent_in_place(self: &Arc<Self>, parent: &Arc<Spatial>) -> Result<()> {
+		if self.is_ancestor_of(parent.clone()) {
+			bail!("Setting spatial parent would cause a loop");
 		}
 
-		self.set_local_transform(Spatial::space_to_space_matrix(
-			Some(self),
-			parent.as_deref(),
-		));
+		self.set_local_transform(Spatial::space_to_space_matrix(Some(self), Some(parent)));
 		self.set_parent(parent);
 
 		Ok(())
 	}
 
-	pub fn get_bounding_box_flex(
-		node: &Node,
-		calling_client: Arc<Client>,
-		message: Message,
-		response: MethodResponseSender,
-	) {
-		response.wrap_sync(move || {
-			let this_spatial = node
-				.spatial
-				.get()
-				.ok_or_else(|| eyre!("Node doesn't have a spatial?"))?;
-			let relative_spatial_path: Option<&str> = deserialize(message.as_ref())?;
-			let bounds = if let Some(relative_spatial_path) = relative_spatial_path {
-				let relative_spatial =
-					find_reference_space(&calling_client, relative_spatial_path)?;
-				let center =
-					Spatial::space_to_space_matrix(Some(&this_spatial), Some(&relative_spatial))
-						.transform_point3([0.0; 3].into());
-				let bounds: Bounds = Bounds {
-					center,
-					dimensions: [0.0; 3].into(),
-				};
-				bounds_grow_to_fit_box(
-					bounds,
-					this_spatial.get_bounding_box(),
-					Some(Spatial::space_to_space_matrix(
-						Some(&this_spatial),
-						Some(&relative_spatial),
-					)),
-				)
-			} else {
-				this_spatial.get_bounding_box()
-			};
-
-			Ok(serialize((
-				mint::Vector3::from(bounds.center),
-				mint::Vector3::from(bounds.dimensions),
-			))?
-			.into())
-		});
-	}
-
-	pub fn get_transform_flex(
-		node: &Node,
-		calling_client: Arc<Client>,
-		message: Message,
-		response: MethodResponseSender,
-	) {
-		response.wrap_sync(move || {
-			let this_spatial = node
-				.spatial
-				.get()
-				.ok_or_else(|| eyre!("Node doesn't have a spatial?"))?;
-			let relative_spatial =
-				find_reference_space(&calling_client, deserialize(message.as_ref())?)?;
-
-			let (scale, rotation, position) = Spatial::space_to_space_matrix(
-				Some(this_spatial.as_ref()),
-				Some(relative_spatial.as_ref()),
-			)
-			.to_scale_rotation_translation();
-
-			Ok(serialize((
-				mint::Vector3::from(position),
-				mint::Quaternion::from(rotation),
-				mint::Vector3::from(scale),
-			))?
-			.into())
-		});
-	}
-	pub fn set_transform_flex(
-		node: &Node,
-		calling_client: Arc<Client>,
-		message: Message,
-	) -> Result<()> {
-		#[derive(Deserialize)]
-		struct TransformArgs<'a> {
-			reference_space_path: Option<&'a str>,
-			transform: Transform,
-		}
-		let transform_args: TransformArgs = deserialize(message.as_ref())?;
-		let reference_space_transform = transform_args
-			.reference_space_path
-			.map(|path| find_reference_space(&calling_client, path))
-			.transpose()?;
-
-		node.spatial.get().unwrap().set_local_transform_components(
-			reference_space_transform.as_deref(),
-			transform_args.transform,
-		);
-		Ok(())
-	}
-	pub fn set_spatial_parent_flex(
-		node: &Node,
-		calling_client: Arc<Client>,
-		message: Message,
-	) -> Result<()> {
-		let parent = find_spatial_parent(&calling_client, deserialize(message.as_ref())?)?;
-		node.spatial.get().unwrap().set_spatial_parent(Some(parent))
-	}
-	pub fn set_spatial_parent_in_place_flex(
-		node: &Node,
-		calling_client: Arc<Client>,
-		message: Message,
-	) -> Result<()> {
-		let parent = find_spatial_parent(&calling_client, deserialize(message.as_ref())?)?;
-		node.spatial
-			.get()
-			.unwrap()
-			.set_spatial_parent_in_place(Some(parent))?;
-		Ok(())
-	}
-	pub fn set_zoneable_flex(
-		node: &Node,
-		_calling_client: Arc<Client>,
-		message: Message,
-	) -> Result<()> {
-		let zoneable: bool = deserialize(message.as_ref())?;
-		let spatial = node.spatial.get().unwrap();
-		if zoneable {
-			ZONEABLE_REGISTRY.add_raw(spatial);
-		} else {
-			ZONEABLE_REGISTRY.remove(spatial);
-			zone::release(spatial);
-		}
-		Ok(())
-	}
-
-	pub fn field_distance_flex(
-		node: &Node,
-		calling_client: Arc<Client>,
-		message: Message,
-		response: MethodResponseSender,
-	) {
-		response.wrap_sync(move || {
-			let (point, fields): (Vector3<f32>, Vec<Option<&str>>) = deserialize(message.as_ref())?;
-			let spatial = node.spatial.get().unwrap();
-
-			let output = fields
-				.into_iter()
-				.map(|f| {
-					calling_client
-						.get_node("Field", f?)
-						.ok()?
-						.get_aspect("Field", "field", |n| &n.field)
-						.ok()
-						.cloned()
-				})
-				.map(|f| f.map(|f| f.distance(spatial, point.into())))
-				.collect::<Vec<Option<f32>>>();
-
-			Ok(serialize(output)?.into())
-		});
-	}
-	pub fn field_normal_flex(
-		node: &Node,
-		calling_client: Arc<Client>,
-		message: Message,
-		response: MethodResponseSender,
-	) {
-		response.wrap_sync(move || {
-			let (point, fields): (Vector3<f32>, Vec<Option<&str>>) = deserialize(message.as_ref())?;
-			let spatial = node.spatial.get().unwrap();
-
-			let output = fields
-				.into_iter()
-				.map(|f| {
-					calling_client
-						.get_node("Field", f?)
-						.ok()?
-						.get_aspect("Field", "field", |n| &n.field)
-						.ok()
-						.cloned()
-				})
-				.map(|f| f.map(|f| Vector3::from(f.normal(spatial, point.into(), 0.001))))
-				.collect::<Vec<_>>();
-
-			Ok(serialize(output)?.into())
-		});
-	}
-	pub fn field_closest_point_flex(
-		node: &Node,
-		calling_client: Arc<Client>,
-		message: Message,
-		response: MethodResponseSender,
-	) {
-		response.wrap_sync(move || {
-			let (point, fields): (Vector3<f32>, Vec<Option<&str>>) = deserialize(message.as_ref())?;
-			let spatial = node.spatial.get().unwrap();
-
-			let output = fields
-				.into_iter()
-				.map(|f| {
-					calling_client
-						.get_node("Field", f?)
-						.ok()?
-						.get_aspect("Field", "field", |n| &n.field)
-						.ok()
-						.cloned()
-				})
-				.map(|f| f.map(|f| Vector3::from(f.closest_point(spatial, point.into(), 0.001))))
-				.collect::<Vec<_>>();
-
-			Ok(serialize(output)?.into())
-		});
-	}
-
 	pub(self) fn zone_distance(&self) -> f32 {
 		self.zone
 			.lock()
 			.upgrade()
-			.and_then(|zone| zone.field.upgrade())
+			.map(|zone| zone.field.clone())
 			.map(|field| field.distance(self, vec3a(0.0, 0.0, 0.0)))
-			.unwrap_or(f32::MAX)
+			.unwrap_or(f32::NEG_INFINITY)
+	}
+}
+impl AspectIdentifier for Spatial {
+	impl_aspect_for_spatial_aspect_id! {}
+}
+impl Aspect for Spatial {
+	impl_aspect_for_spatial_aspect! {}
+}
+impl SpatialAspect for Spatial {
+	fn set_local_transform(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		transform: Transform,
+	) -> Result<()> {
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		this_spatial.set_local_transform_components(None, transform);
+		Ok(())
+	}
+	fn set_relative_transform(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		relative_to: Arc<Node>,
+		transform: Transform,
+	) -> Result<()> {
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		let relative_spatial = relative_to.get_aspect::<Spatial>()?;
+
+		this_spatial.set_local_transform_components(Some(&relative_spatial), transform);
+		Ok(())
+	}
+
+	fn set_spatial_parent(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		parent: Arc<Node>,
+	) -> Result<()> {
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		let parent = parent.get_aspect::<Spatial>()?;
+
+		this_spatial.set_spatial_parent(&parent)?;
+		Ok(())
+	}
+
+	fn set_spatial_parent_in_place(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		parent: Arc<Node>,
+	) -> Result<()> {
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		let parent = parent.get_aspect::<Spatial>()?;
+
+		this_spatial.set_spatial_parent_in_place(&parent)?;
+		Ok(())
+	}
+
+	fn set_zoneable(node: Arc<Node>, _calling_client: Arc<Client>, zoneable: bool) -> Result<()> {
+		let spatial = node.get_aspect::<Spatial>()?;
+		if zoneable {
+			ZONEABLE_REGISTRY.add_raw(&spatial);
+		} else {
+			ZONEABLE_REGISTRY.remove(&spatial);
+			zone::release(&spatial);
+		}
+		Ok(())
+	}
+
+	// legit gotta find a way to remove old ones, this just keeps the node alive
+	async fn export_spatial(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<u64> {
+		let id = rand::random();
+		EXPORTED_SPATIALS.lock().insert(id, node);
+		Ok(id)
 	}
 }
 impl PartialEq for Spatial {
 	fn eq(&self, other: &Self) -> bool {
-		self.uid == other.uid
+		self.node.as_ptr() == other.node.as_ptr()
 	}
 }
 impl Debug for Spatial {
 	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
 		f.debug_struct("Spatial")
-			.field("uid", &self.uid)
 			.field("parent", &self.parent)
 			.field("old_parent", &self.old_parent)
 			.field("transform", &self.transform)
@@ -454,14 +316,81 @@ impl Debug for Spatial {
 }
 impl Drop for Spatial {
 	fn drop(&mut self) {
-		ZONEABLE_REGISTRY.remove(self);
 		zone::release(self);
+		ZONEABLE_REGISTRY.remove(self);
+	}
+}
+
+pub struct SpatialRef;
+impl AspectIdentifier for SpatialRef {
+	impl_aspect_for_spatial_ref_aspect_id! {}
+}
+impl Aspect for SpatialRef {
+	impl_aspect_for_spatial_ref_aspect! {}
+}
+impl SpatialRefAspect for SpatialRef {
+	async fn get_local_bounding_box(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+	) -> Result<BoundingBox> {
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		let bounds = this_spatial.get_bounding_box();
+
+		Ok(BoundingBox {
+			center: Vec3::from(bounds.center).into(),
+			size: Vec3::from(bounds.dimensions).into(),
+		})
+	}
+
+	async fn get_relative_bounding_box(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		relative_to: Arc<Node>,
+	) -> Result<BoundingBox> {
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		let relative_spatial = relative_to.get_aspect::<Spatial>()?;
+		let center = Spatial::space_to_space_matrix(Some(&this_spatial), Some(&relative_spatial))
+			.transform_point3([0.0; 3].into());
+		let mut bounds = Bounds {
+			center: center.into(),
+			dimensions: [0.0; 3].into(),
+		};
+		bounds.grown_box(
+			this_spatial.get_bounding_box(),
+			Spatial::space_to_space_matrix(Some(&this_spatial), Some(&relative_spatial)),
+		);
+
+		Ok(BoundingBox {
+			center: Vec3::from(bounds.center).into(),
+			size: Vec3::from(bounds.dimensions).into(),
+		})
+	}
+
+	async fn get_transform(
+		node: Arc<Node>,
+		_calling_client: Arc<Client>,
+		relative_to: Arc<Node>,
+	) -> Result<Transform> {
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		let relative_spatial = relative_to.get_aspect::<Spatial>()?;
+
+		let (scale, rotation, position) = Spatial::space_to_space_matrix(
+			Some(this_spatial.as_ref()),
+			Some(relative_spatial.as_ref()),
+		)
+		.to_scale_rotation_translation();
+
+		Ok(Transform {
+			translation: Some(position.into()),
+			rotation: Some(rotation.into()),
+			scale: Some(scale.into()),
+		})
 	}
 }
 
 pub fn parse_transform(transform: Transform, position: bool, rotation: bool, scale: bool) -> Mat4 {
 	let position = position
-		.then_some(transform.position)
+		.then_some(transform.translation)
 		.flatten()
 		.unwrap_or_else(|| Vector3::from([0.0; 3]));
 	let rotation = rotation
@@ -476,53 +405,56 @@ pub fn parse_transform(transform: Transform, position: bool, rotation: bool, sca
 	Mat4::from_scale_rotation_translation(scale.into(), rotation.into(), position.into())
 }
 
-pub fn find_spatial(
-	calling_client: &Arc<Client>,
-	node_name: &'static str,
-	node_path: &str,
-) -> color_eyre::eyre::Result<Arc<Spatial>> {
-	calling_client
-		.get_node(node_name, node_path)?
-		.get_aspect(node_name, "spatial", |n| &n.spatial)
-		.cloned()
-}
-pub fn find_spatial_parent(
-	calling_client: &Arc<Client>,
-	node_path: &str,
-) -> color_eyre::eyre::Result<Arc<Spatial>> {
-	find_spatial(calling_client, "Spatial parent", node_path)
-}
-pub fn find_reference_space(
-	calling_client: &Arc<Client>,
-	node_path: &str,
-) -> color_eyre::eyre::Result<Arc<Spatial>> {
-	find_spatial(calling_client, "Reference space", node_path)
-}
-
-pub fn create_interface(client: &Arc<Client>) -> Result<()> {
-	let node = Node::create(client, "", "spatial", false);
-	node.add_local_signal("create_spatial", create_spatial_flex);
-	node.add_local_signal("create_zone", create_zone_flex);
-	node.add_to_scenegraph().map(|_| ())
-}
-
-pub fn create_spatial_flex(
-	_node: &Node,
-	calling_client: Arc<Client>,
-	message: Message,
-) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateSpatialInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
+impl InterfaceAspect for Interface {
+	fn create_spatial(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
 		transform: Transform,
 		zoneable: bool,
+	) -> Result<()> {
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = parse_transform(transform, true, true, true);
+		let node = Node::from_id(&calling_client, id, true).add_to_scenegraph()?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, zoneable);
+		Ok(())
+	}
+	fn create_zone(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		id: u64,
+		parent: Arc<Node>,
+		transform: Transform,
+		field: Arc<Node>,
+	) -> Result<()> {
+		let parent = parent.get_aspect::<Spatial>()?;
+		let transform = parse_transform(transform, true, true, false);
+		let field = field.get_aspect::<Field>()?;
+
+		let node = Node::from_id(&calling_client, id, true).add_to_scenegraph()?;
+		let space = Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		Zone::add_to(&node, space, field);
+		Ok(())
+	}
+
+	async fn import_spatial_ref(
+		_node: Arc<Node>,
+		calling_client: Arc<Client>,
+		uid: u64,
+	) -> Result<Arc<Node>> {
+		Ok(EXPORTED_SPATIALS
+			.lock()
+			.get(&uid)
+			.map(|s| {
+				Alias::create(
+					s,
+					&calling_client,
+					SPATIAL_REF_ASPECT_ALIAS_INFO.clone(),
+					None,
+				)
+				.unwrap()
+			})
+			.ok_or_eyre("Couldn't find spatial with that ID")?)
 	}
-	let info: CreateSpatialInfo = deserialize(message.as_ref())?;
-	let node = Node::create(&calling_client, "/spatial/spatial", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, true);
-	let node = node.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, info.zoneable)?;
-	Ok(())
 }

src/nodes/spatial/zone.rs

@@ -1,171 +1,164 @@
-use super::{find_spatial, Spatial, ZONEABLE_REGISTRY};
+use super::{
+	SPATIAL_ASPECT_ALIAS_INFO, SPATIAL_REF_ASPECT_ALIAS_INFO, Spatial, ZONEABLE_REGISTRY,
+	ZoneAspect,
+};
 use crate::{
-	core::{client::Client, registry::Registry},
+	core::{client::Client, error::Result, registry::Registry},
 	nodes::{
-		alias::{Alias, AliasInfo},
-		fields::{find_field, Field},
-		spatial::{find_spatial_parent, parse_transform},
-		Message, Node,
+		Node,
+		alias::{Alias, AliasList, get_original},
+		fields::{Field, FieldTrait},
 	},
 };
-use color_eyre::eyre::Result;
 use glam::vec3a;
-use parking_lot::Mutex;
-use rustc_hash::FxHashMap;
-use serde::Deserialize;
-use stardust_xr::{
-	schemas::flex::{deserialize, serialize},
-	values::Transform,
-};
 use std::sync::{Arc, Weak};
 
 pub fn capture(spatial: &Arc<Spatial>, zone: &Arc<Zone>) {
 	let old_distance = spatial.zone_distance();
-	let new_distance = zone
-		.field
-		.upgrade()
-		.map(|field| field.distance(spatial, vec3a(0.0, 0.0, 0.0)))
-		.unwrap_or(f32::MAX);
-	if new_distance.abs() < old_distance.abs() {
-		release(spatial);
-		*spatial.old_parent.lock() = spatial.get_parent();
-		*spatial.zone.lock() = Arc::downgrade(zone);
-		zone.captured.add_raw(spatial);
-		let Some(node) = zone.spatial.node.upgrade() else {return};
-		let Ok(message) = serialize(&spatial.uid) else {return};
-		let _ = node.send_remote_signal("capture", message);
+	let new_distance = zone.field.distance(spatial, vec3a(0.0, 0.0, 0.0));
+	if new_distance.abs() > old_distance.abs() {
+		return;
 	}
+
+	release(spatial);
+	*spatial.old_parent.lock() = spatial.get_parent();
+	*spatial.zone.lock() = Arc::downgrade(zone);
+	let Some(zone_node) = zone.spatial.node.upgrade() else {
+		return;
+	};
+	let Some(spatial_node) = spatial.node.upgrade() else {
+		return;
+	};
+	let Ok(spatial_alias) = Alias::create(
+		&spatial_node,
+		&zone_node.get_client().unwrap(),
+		SPATIAL_ASPECT_ALIAS_INFO.clone(),
+		Some(&zone.captured),
+	) else {
+		return;
+	};
+	let _ = super::zone_client::capture(&zone_node, &spatial_alias);
 }
 pub fn release(spatial: &Spatial) {
-	let _ = spatial.set_spatial_parent_in_place(spatial.old_parent.lock().take());
+	let Some(spatial_node) = spatial.node.upgrade() else {
+		return;
+	};
+	let spatial = spatial_node.get_aspect::<Spatial>().unwrap();
+
+	let Some(old_parent) = spatial.old_parent.lock().take() else {
+		return;
+	};
+	let _ = spatial.set_spatial_parent_in_place(&old_parent);
 	let mut spatial_zone = spatial.zone.lock();
+
 	if let Some(spatial_zone) = spatial_zone.upgrade() {
-		let Some(node) = spatial_zone.spatial.node.upgrade() else {return};
-		spatial_zone.captured.remove(spatial);
-		let Ok(message) = serialize(&spatial.uid) else {return};
-		let _ = node.send_remote_signal("release", message);
+		spatial_zone.captured.remove_aspect(spatial.as_ref());
+		let Some(node) = spatial_zone.spatial.node.upgrade() else {
+			return;
+		};
+		let _ = super::zone_client::release(&node, spatial_node.id);
 	}
 	*spatial_zone = Weak::new();
 }
 
 pub struct Zone {
 	spatial: Arc<Spatial>,
-	pub field: Weak<Field>,
-	zoneables: Mutex<FxHashMap<String, Arc<Node>>>,
-	captured: Registry<Spatial>,
+	pub field: Arc<Field>,
+	intersecting_spatials: Registry<Spatial>,
+	intersecting: AliasList,
+	captured: AliasList,
 }
 impl Zone {
-	pub fn add_to(node: &Arc<Node>, spatial: Arc<Spatial>, field: &Arc<Field>) -> Arc<Zone> {
+	pub fn add_to(node: &Arc<Node>, spatial: Arc<Spatial>, field: Arc<Field>) -> Arc<Zone> {
 		let zone = Arc::new(Zone {
 			spatial,
-			field: Arc::downgrade(field),
-			zoneables: Mutex::new(FxHashMap::default()),
-			captured: Registry::new(),
+			field,
+			intersecting_spatials: Registry::default(),
+			intersecting: AliasList::default(),
+			captured: AliasList::default(),
 		});
-		node.add_local_signal("capture", Zone::capture_flex);
-		node.add_local_signal("release", Zone::release_flex);
-		node.add_local_signal("update", Zone::update);
-		let _ = node.zone.set(zone.clone());
+		node.add_aspect_raw(zone.clone());
 		zone
 	}
-	fn capture_flex(node: &Node, calling_client: Arc<Client>, message: Message) -> Result<()> {
-		let zone = node.zone.get().unwrap();
-		let capture_path: &str = deserialize(message.as_ref())?;
-		let spatial = find_spatial(&calling_client, "Spatial", capture_path)?;
-		capture(&spatial, zone);
+	pub fn update(&self) -> Result<()> {
+		let node = self.spatial.node().unwrap();
+
+		let current_zoneables = Registry::new();
+		for zoneable in ZONEABLE_REGISTRY.get_valid_contents() {
+			// Skip if the zoneable is an ancestor of the zone or the zone itself
+			if zoneable.is_ancestor_of(self.spatial.clone()) {
+				continue;
+			}
+
+			let distance = self.field.distance(&zoneable, [0.0; 3].into());
+			if distance > 0.0 {
+				continue;
+			}
+			if distance < zoneable.zone_distance() {
+				continue;
+			}
+			current_zoneables.add_raw(&zoneable);
+		}
+
+		let (added, removed) =
+			Registry::get_changes(&self.intersecting_spatials, &current_zoneables);
+		for added in added {
+			let Some(added_node) = added.node() else {
+				continue;
+			};
+			let Ok(alias) = Alias::create(
+				&added_node,
+				&self.spatial.node().unwrap().get_client().unwrap(),
+				SPATIAL_REF_ASPECT_ALIAS_INFO.clone(),
+				Some(&self.intersecting),
+			) else {
+				continue;
+			};
+			let _ = super::zone_client::enter(&node, &alias);
+		}
+		for removed in removed {
+			let Some(removed_node) = removed.node() else {
+				continue;
+			};
+			release(&removed);
+			let _ = super::zone_client::leave(&node, removed_node.id);
+			self.intersecting.remove_aspect(removed.as_ref());
+		}
+		self.intersecting_spatials.set(&current_zoneables);
+
 		Ok(())
 	}
-	fn release_flex(_node: &Node, calling_client: Arc<Client>, message: Message) -> Result<()> {
-		let capture_path: &str = deserialize(message.as_ref())?;
-		let spatial = find_spatial(&calling_client, "Spatial", capture_path)?;
+}
+impl ZoneAspect for Zone {
+	fn update(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
+		let zone = node.get_aspect::<Zone>()?;
+		let _ = zone.update();
+		Ok(())
+	}
+
+	fn capture(node: Arc<Node>, _calling_client: Arc<Client>, spatial: Arc<Node>) -> Result<()> {
+		let zone = node.get_aspect::<Zone>()?;
+		let spatial = spatial.get_aspect()?;
+		capture(&spatial, &zone);
+		Ok(())
+	}
+
+	fn release(_node: Arc<Node>, _calling_client: Arc<Client>, spatial: Arc<Node>) -> Result<()> {
+		let spatial = spatial.get_aspect()?;
 		release(&spatial);
 		Ok(())
 	}
-	fn update(node: &Node, _calling_client: Arc<Client>, _message: Message) -> Result<()> {
-		let zone = node.zone.get().unwrap();
-		let Some(field) = zone.field.upgrade() else { return Err(color_eyre::eyre::eyre!("Zone's field has been destroyed")) };
-		let Some((zone_client, zone_node)) = zone
-			.spatial
-			.node
-			.upgrade()
-			.and_then(|n| n.get_client().zip(Some(n))) else { return Err(color_eyre::eyre::eyre!("No client on node?")) };
-		let mut old_zoneables = zone.zoneables.lock();
-		for (_uid, zoneable) in old_zoneables.iter() {
-			zoneable.destroy();
-		}
-		let captured = zone.captured.get_valid_contents();
-		let zoneables = ZONEABLE_REGISTRY
-			.get_valid_contents()
-			.into_iter()
-			.filter(|zoneable| zoneable.node.upgrade().is_some())
-			.filter(|zoneable| {
-				if captured
-					.iter()
-					.any(|captured| Arc::ptr_eq(captured, zoneable))
-				{
-					return true;
-				}
-				let spatial_zone_distance = zoneable.zone_distance();
-				let self_zone_distance = field.distance(zoneable, vec3a(0.0, 0.0, 0.0));
-				self_zone_distance < 0.0 && spatial_zone_distance > self_zone_distance
-			})
-			.filter_map(|zoneable| {
-				let alias = Alias::create(
-					&zone_client,
-					zone_node.get_path(),
-					&zoneable.uid,
-					&zoneable.node.upgrade().unwrap(),
-					AliasInfo {
-						server_signals: vec![
-							"set_transform",
-							"set_spatial_parent",
-							"set_spatial_parent_in_place",
-						],
-						server_methods: vec!["get_bounds", "get_transform"],
-						..Default::default()
-					},
-				)
-				.ok()?;
-				Some((zoneable.uid.clone(), alias))
-			})
-			.collect::<FxHashMap<String, Arc<Node>>>();
-
-		for entered_uid in zoneables.keys().filter(|k| !old_zoneables.contains_key(*k)) {
-			node.send_remote_signal("enter", serialize(entered_uid)?)?;
-		}
-		for left_uid in old_zoneables.keys().filter(|k| !zoneables.contains_key(*k)) {
-			node.send_remote_signal("leave", serialize(left_uid)?)?;
-		}
-
-		*old_zoneables = zoneables;
-
-		Ok(())
-	}
 }
 impl Drop for Zone {
 	fn drop(&mut self) {
-		for captured in self.captured.get_valid_contents() {
+		for captured in self
+			.captured
+			.get_aliases()
+			.into_iter()
+			.filter_map(|n| get_original(n, false))
+			.filter_map(|n| n.get_aspect::<Spatial>().ok())
+		{
 			release(&captured);
 		}
 	}
 }
-
-pub fn create_zone_flex(_node: &Node, calling_client: Arc<Client>, message: Message) -> Result<()> {
-	#[derive(Deserialize)]
-	struct CreateZoneInfo<'a> {
-		name: &'a str,
-		parent_path: &'a str,
-		transform: Transform,
-		field_path: &'a str,
-	}
-	let info: CreateZoneInfo = deserialize(message.as_ref())?;
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
-	let transform = parse_transform(info.transform, true, true, false);
-	let field = find_field(&calling_client, info.field_path)?;
-
-	let node =
-		Node::create(&calling_client, "/spatial/zone", info.name, true).add_to_scenegraph()?;
-	let space = Spatial::add_to(&node, Some(parent), transform, false)?;
-	Zone::add_to(&node, space, &field);
-	Ok(())
-}

src/objects/input/eye_pointer.rs

@@ -1,18 +1,23 @@
 use crate::{
 	core::client::INTERNAL_CLIENT,
 	nodes::{
-		input::{pointer::Pointer, InputMethod, InputType},
+		Node, OwnedNode,
+		fields::{FieldTrait, Ray},
+		input::{INPUT_HANDLER_REGISTRY, InputDataType, InputMethod, Pointer},
 		spatial::Spatial,
-		Node,
 	},
 };
 use color_eyre::eyre::Result;
-use glam::Mat4;
-use nanoid::nanoid;
-use serde::Serialize;
-use stardust_xr::schemas::{flat::Datamap, flex::flexbuffers};
+use glam::{Mat4, vec3};
+use serde::{Deserialize, Serialize};
+use stardust_xr::values::Datamap;
 use std::sync::Arc;
-use stereokit::StereoKitMultiThread;
+use stereokit_rust::system::Input;
+
+#[derive(Default, Deserialize, Serialize)]
+pub struct EyeDatamap {
+	eye: u32,
+}
 
 #[derive(Debug, Clone, Serialize)]
 pub struct KeyboardEvent {
@@ -23,32 +28,79 @@ pub struct KeyboardEvent {
 }
 
 pub struct EyePointer {
+	node: OwnedNode,
 	spatial: Arc<Spatial>,
 	pointer: Arc<InputMethod>,
 }
 impl EyePointer {
 	pub fn new() -> Result<Self> {
-		let node = Node::create(&INTERNAL_CLIENT, "", &nanoid!(), false).add_to_scenegraph()?;
-		let spatial = Spatial::add_to(&node, None, Mat4::IDENTITY, false).unwrap();
-		let pointer =
-			InputMethod::add_to(&node, InputType::Pointer(Pointer::default()), None).unwrap();
+		let node = Node::generate(&INTERNAL_CLIENT, false).add_to_scenegraph_owned()?;
+		let spatial = Spatial::add_to(&node.0, None, Mat4::IDENTITY, false);
+		let pointer = InputMethod::add_to(
+			&node.0,
+			InputDataType::Pointer(Pointer::default()),
+			Datamap::from_typed(EyeDatamap::default())?,
+		)
+		.unwrap();
 
-		Ok(EyePointer { spatial, pointer })
+		Ok(EyePointer {
+			node,
+			spatial,
+			pointer,
+		})
 	}
-	pub fn update(&self, sk: &impl StereoKitMultiThread) {
-		let ray = sk.input_eyes();
+	pub fn update(&self) {
+		let ray = Input::get_eyes();
 		self.spatial
 			.set_local_transform(Mat4::from_rotation_translation(
-				ray.orientation,
-				ray.position,
+				ray.orientation.into(),
+				ray.position.into(),
 			));
 		{
 			// Set pointer input datamap
-			let mut fbb = flexbuffers::Builder::default();
-			let mut map = fbb.start_map();
-			map.push("eye", 2);
-			map.end_map();
-			*self.pointer.datamap.lock() = Datamap::new(fbb.take_buffer()).ok();
+			*self.pointer.datamap.lock() = Datamap::from_typed(EyeDatamap { eye: 2 }).unwrap();
 		}
+
+		// send input to all the input handlers that are the closest to the ray as possible
+		let rx = INPUT_HANDLER_REGISTRY
+			.get_valid_contents()
+			.into_iter()
+			// filter out all the disabled handlers
+			.filter(|handler| {
+				let Some(node) = handler.spatial.node() else {
+					return false;
+				};
+				node.enabled()
+			})
+			// ray march to all the enabled handlers' fields
+			.map(|handler| {
+				let result = handler.field.ray_march(Ray {
+					origin: vec3(0.0, 0.0, 0.0),
+					direction: vec3(0.0, 0.0, -1.0),
+					space: self.spatial.clone(),
+				});
+				(vec![handler], result)
+			})
+			// make sure the field isn't at the pointer origin and that it's being hit
+			.filter(|(_, result)| result.deepest_point_distance > 0.01 && result.min_distance < 0.0)
+			// .inspect(|(_, result)| {
+			// 	dbg!(result);
+			// })
+			// now collect all handlers that are same distance if they're the closest
+			.reduce(|(mut handlers_a, result_a), (handlers_b, result_b)| {
+				if (result_a.deepest_point_distance - result_b.deepest_point_distance).abs() < 0.001
+				{
+					// distance is basically the same
+					handlers_a.extend(handlers_b);
+					(handlers_a, result_a)
+				} else if result_a.deepest_point_distance < result_b.deepest_point_distance {
+					(handlers_a, result_a)
+				} else {
+					(handlers_b, result_b)
+				}
+			})
+			.map(|(rx, _)| rx)
+			.unwrap_or_default();
+		self.pointer.set_handler_order(rx.iter());
 	}
 }

src/objects/input/mod.rs

@@ -2,3 +2,92 @@ pub mod eye_pointer;
 pub mod mouse_pointer;
 pub mod sk_controller;
 pub mod sk_hand;
+
+use crate::nodes::{
+	fields::{Field, FieldTrait, Ray},
+	input::{INPUT_HANDLER_REGISTRY, InputDataTrait, InputDataType, InputHandler, InputMethod},
+	spatial::Spatial,
+};
+use glam::vec3;
+use std::{
+	collections::VecDeque,
+	sync::{Arc, Weak},
+};
+
+#[derive(Default)]
+pub struct CaptureManager {
+	pub capture: Weak<InputHandler>,
+}
+impl CaptureManager {
+	pub fn update_capture(&mut self, method: &InputMethod) {
+		if let Some(capture) = &self.capture.upgrade() {
+			if !method
+				.capture_attempts
+				.get_valid_contents()
+				.contains(capture)
+			{
+				self.capture = Weak::new();
+			}
+		}
+	}
+	pub fn set_new_capture(
+		&mut self,
+		method: &InputMethod,
+		distance_calculator: DistanceCalculator,
+	) {
+		if self.capture.upgrade().is_none() {
+			self.capture = find_closest_capture(method, distance_calculator);
+		}
+	}
+	pub fn apply_capture(&self, method: &InputMethod) {
+		method.captures.clear();
+		if let Some(capture) = &self.capture.upgrade() {
+			method.set_handler_order([capture].into_iter());
+			method.captures.add_raw(capture);
+		}
+	}
+}
+
+type DistanceCalculator = fn(&Arc<Spatial>, &InputDataType, &Field) -> Option<f32>;
+
+pub fn find_closest_capture(
+	method: &InputMethod,
+	distance_calculator: DistanceCalculator,
+) -> Weak<InputHandler> {
+	method
+		.capture_attempts
+		.get_valid_contents()
+		.into_iter()
+		.filter_map(|h| {
+			distance_calculator(&method.spatial, &method.data.lock(), &h.field)
+				.map(|dist| (h.clone(), dist))
+		})
+		.min_by(|(_, dist_a), (_, dist_b)| dist_a.partial_cmp(dist_b).unwrap())
+		.map(|(handler, _)| Arc::downgrade(&handler))
+		.unwrap_or_default()
+}
+
+/// sorts them greatest to least distance (so you can pop off the closest ones easily)
+pub fn get_sorted_handlers(
+	method: &InputMethod,
+	distance_calculator: DistanceCalculator,
+) -> Vec<(Arc<InputHandler>, f32)> {
+	let mut handlers = INPUT_HANDLER_REGISTRY
+		.get_valid_contents()
+		.into_iter()
+		.filter(|handler| handler.spatial.node().is_some_and(|node| node.enabled()))
+		.filter(|handler| {
+			handler
+				.field
+				.spatial
+				.node()
+				.is_some_and(|node| node.enabled())
+		})
+		.filter_map(|handler| {
+			distance_calculator(&method.spatial, &method.data.lock(), &handler.field)
+				.map(|distance| (handler, distance))
+		})
+		.collect::<Vec<_>>();
+	handlers.sort_by(|(_, dist_a), (_, dist_b)| dist_a.partial_cmp(dist_b).unwrap());
+	handlers
+}

src/objects/input/mouse_pointer.rs

@@ -1,160 +1,256 @@
+use super::{CaptureManager, DistanceCalculator, get_sorted_handlers};
 use crate::{
-	core::{client::INTERNAL_CLIENT, typed_datamap::TypedDatamap},
+	core::client::INTERNAL_CLIENT,
 	nodes::{
-		data::{mask_matches, Mask, PulseSender, KEYMAPS, PULSE_RECEIVER_REGISTRY},
-		fields::Ray,
-		input::{pointer::Pointer, InputMethod, InputType},
+		Node, OwnedNode,
+		fields::{EXPORTED_FIELDS, Field, FieldTrait, Ray},
+		input::{InputDataType, InputMethod, Pointer},
+		items::panel::KEYMAPS,
 		spatial::Spatial,
-		Node,
 	},
 };
 use color_eyre::eyre::Result;
-use glam::{vec2, vec3, Mat4, Vec2, Vec3};
-use nanoid::nanoid;
+use glam::{Mat4, Vec3, vec3};
+use mint::Vector2;
 use serde::{Deserialize, Serialize};
-use std::{convert::TryFrom, sync::Arc};
-use stereokit::{ray_from_mouse, ButtonState, Key, StereoKitMultiThread};
-use xkbcommon::xkb::{Context, Keymap, FORMAT_TEXT_V1};
+use slotmap::{DefaultKey, Key as SlotKey};
+use stardust_xr::{
+	schemas::dbus::{interfaces::FieldRefProxy, object_registry::ObjectRegistry},
+	values::Datamap,
+};
+use std::sync::Arc;
+use stereokit_rust::system::{Input, Key};
+use tokio::task::JoinSet;
+use tokio::time::{Duration, timeout};
+use xkbcommon_rs::{Context, Keymap, KeymapFormat, xkb_keymap::CompileFlags};
+use zbus::{Connection, names::OwnedInterfaceName};
 
-#[derive(Default, Deserialize, Serialize)]
+#[derive(Debug, Deserialize, Serialize)]
 struct MouseEvent {
 	select: f32,
+	middle: f32,
+	context: f32,
 	grab: f32,
-	scroll_continuous: Vec2,
-	scroll_discrete: Vec2,
+	scroll_continuous: Vector2<f32>,
+	scroll_discrete: Vector2<f32>,
+	raw_input_events: Vec<u32>,
 }
-
-#[derive(Debug, Clone, Deserialize, Serialize)]
-pub struct KeyboardEvent {
-	pub keyboard: (),
-	pub xkbv1: (),
-	pub keymap_id: String,
-	pub keys: Vec<i32>,
-}
-impl Default for KeyboardEvent {
+impl Default for MouseEvent {
 	fn default() -> Self {
-		Self {
-			keyboard: (),
-			xkbv1: (),
-			keymap_id: "flatscreen".to_string(),
-			keys: Default::default(),
+		MouseEvent {
+			select: 0.0,
+			middle: 0.0,
+			context: 0.0,
+			grab: 0.0,
+			scroll_continuous: [0.0; 2].into(),
+			scroll_discrete: [0.0; 2].into(),
+			raw_input_events: vec![],
 		}
 	}
 }
 
+#[zbus::proxy(
+	interface = "org.stardustxr.XKBv1",
+	default_service = "org.stardustxr.XKBv1"
+)]
+trait KeyboardHandler {
+	async fn keymap(&self, keymap_id: u64) -> zbus::Result<()>;
+	async fn key_state(&self, key: u32, pressed: bool) -> zbus::Result<()>;
+	async fn reset(&self) -> zbus::Result<()>;
+}
+
+#[allow(unused)]
 pub struct MousePointer {
-	node: Arc<Node>,
+	node: OwnedNode,
+	keymap: DefaultKey,
 	spatial: Arc<Spatial>,
 	pointer: Arc<InputMethod>,
-	mouse_datamap: TypedDatamap<MouseEvent>,
-	keyboard_datamap: TypedDatamap<KeyboardEvent>,
-	keyboard_sender: Arc<PulseSender>,
+	capture_manager: CaptureManager,
+	mouse_datamap: MouseEvent,
 }
 impl MousePointer {
 	pub fn new() -> Result<Self> {
-		let node = Node::create(&INTERNAL_CLIENT, "", &nanoid!(), false).add_to_scenegraph()?;
-		let spatial = Spatial::add_to(&node, None, Mat4::IDENTITY, false).unwrap();
-		let pointer =
-			InputMethod::add_to(&node, InputType::Pointer(Pointer::default()), None).unwrap();
+		let node = Node::generate(&INTERNAL_CLIENT, false).add_to_scenegraph_owned()?;
+		let spatial = Spatial::add_to(&node.0, None, Mat4::IDENTITY, false);
+		let pointer = InputMethod::add_to(
+			&node.0,
+			InputDataType::Pointer(Pointer::default()),
+			Datamap::from_typed(MouseEvent::default())?,
+		)?;
 
-		KEYMAPS.lock().insert(
-			"flatscreen".to_string(),
-			Keymap::new_from_names(&Context::new(0), "evdev", "", "", "", None, 0)
+		let context = Context::new(0).unwrap();
+		let keymap = KEYMAPS.lock().insert(
+			Keymap::new_from_names(context, None, CompileFlags::NO_FLAGS)
 				.unwrap()
-				.get_as_string(FORMAT_TEXT_V1),
+				.get_as_string(KeymapFormat::TextV1)
+				.unwrap(),
 		);
 
-		let keyboard_sender =
-			PulseSender::add_to(&node, Mask::from_struct::<KeyboardEvent>()).unwrap();
-
 		Ok(MousePointer {
 			node,
 			spatial,
 			pointer,
+			capture_manager: CaptureManager::default(),
 			mouse_datamap: Default::default(),
-			keyboard_datamap: Default::default(),
-			keyboard_sender,
+			keymap,
 		})
 	}
-	pub fn update(&mut self, sk: &impl StereoKitMultiThread) {
-		let mouse = sk.input_mouse();
+	pub fn update(&mut self, dbus_connection: &Connection, object_registry: &ObjectRegistry) {
+		let mouse = Input::get_mouse();
 
-		let ray = ray_from_mouse(mouse.pos).unwrap();
+		let ray = mouse.get_ray();
 		self.spatial.set_local_transform(
 			Mat4::look_to_rh(
-				Vec3::from(ray.pos),
-				Vec3::from(ray.dir),
+				Vec3::from(ray.position),
+				Vec3::from(ray.direction),
 				vec3(0.0, 1.0, 0.0),
 			)
 			.inverse(),
 		);
 		{
 			// Set pointer input datamap
-			self.mouse_datamap.select =
-				if sk.input_key(Key::MouseLeft).contains(ButtonState::ACTIVE) {
-					1.0f32
-				} else {
-					0.0f32
-				};
-			self.mouse_datamap.grab = if sk.input_key(Key::MouseRight).contains(ButtonState::ACTIVE)
-			{
-				1.0f32
-			} else {
-				0.0f32
+			self.mouse_datamap = MouseEvent {
+				select: Input::key(Key::MouseLeft).is_active() as u32 as f32,
+				middle: Input::key(Key::MouseCenter).is_active() as u32 as f32,
+				context: Input::key(Key::MouseRight).is_active() as u32 as f32,
+				grab: (Input::key(Key::MouseRight).is_active()
+					|| (Input::key(Key::Backtick).is_active()
+						&& Input::key(Key::Shift).is_active())) as u32 as f32, // Was Mouse 5
+				scroll_continuous: [0.0, mouse.scroll_change / 120.0].into(),
+				scroll_discrete: [0.0, mouse.scroll_change / 120.0].into(),
+				raw_input_events: vec![],
 			};
-			self.mouse_datamap.scroll_continuous = vec2(0.0, mouse.scroll_change / 120.0);
-			self.mouse_datamap.scroll_discrete = vec2(0.0, mouse.scroll_change / 120.0);
-			*self.pointer.datamap.lock() = self.mouse_datamap.to_datamap().ok();
+			*self.pointer.datamap.lock() = Datamap::from_typed(&self.mouse_datamap).unwrap();
 		}
-		self.send_keyboard_input(sk);
+		self.target_pointer_input();
+		self.send_keyboard_input(dbus_connection, object_registry);
+	}
+	fn target_pointer_input(&mut self) {
+		let distance_calculator: DistanceCalculator = |space, data, field| {
+			let result = field.ray_march(Ray {
+				origin: vec3(0.0, 0.0, 0.0),
+				direction: vec3(0.0, 0.0, -1.0),
+				space: space.clone(),
+			});
+			let valid =
+				result.deepest_point_distance > 0.0 && result.min_distance.is_sign_negative();
+			valid.then_some(result.deepest_point_distance)
+		};
+
+		self.capture_manager.update_capture(&self.pointer);
+		self.capture_manager
+			.set_new_capture(&self.pointer, distance_calculator);
+		self.capture_manager.apply_capture(&self.pointer);
+
+		if self.capture_manager.capture.upgrade().is_some() {
+			return;
+		}
+
+		let mut handlers = get_sorted_handlers(&self.pointer, distance_calculator);
+		let first_distance = handlers
+			.first()
+			.map(|(_, distance)| *distance)
+			.unwrap_or(f32::NEG_INFINITY);
+
+		self.pointer.set_handler_order(
+			handlers
+				.iter()
+				.filter(|(handler, distance)| (distance - first_distance).abs() <= 0.001)
+				.map(|(handler, _)| handler),
+		);
 	}
 
-	fn send_keyboard_input(&mut self, sk: &impl StereoKitMultiThread) {
-		let rx = PULSE_RECEIVER_REGISTRY
-			.get_valid_contents()
-			.into_iter()
-			.filter(|rx| mask_matches(&rx.mask, &self.keyboard_sender.mask))
-			.map(|rx| {
-				let result = rx.field.ray_march(Ray {
-					origin: vec3(0.0, 0.0, 0.0),
-					direction: vec3(0.0, 0.0, -1.0),
-					space: self.spatial.clone(),
-				});
-				(rx, result)
-			})
-			.filter(|(_rx, result)| {
-				result.deepest_point_distance > 0.0 && result.min_distance < 0.05
-			})
-			.reduce(|(rx_a, result_a), (rx_b, result_b)| {
-				if result_a.deepest_point_distance < result_b.deepest_point_distance {
-					(rx_a, result_a)
-				} else {
-					(rx_b, result_b)
+	pub fn send_keyboard_input(
+		&mut self,
+		dbus_connection: &Connection,
+		object_registry: &ObjectRegistry,
+	) {
+		let keyboard_handlers = object_registry.get_objects("org.stardustxr.XKBv1");
+
+		// Spawn async task to handle keyboard input
+		tokio::spawn({
+			let keyboard_handlers = keyboard_handlers.clone();
+			let spatial = self.spatial.clone();
+			let keymap_id = self.keymap.data().as_ffi();
+			let dbus_connection = dbus_connection.clone();
+
+			async move {
+				let mut closest_handler = None;
+				let mut closest_distance = f32::MAX;
+
+				let mut join_set = JoinSet::new();
+				for handler in &keyboard_handlers {
+					let handler = handler.clone();
+					let dbus_connection = dbus_connection.clone();
+					join_set.spawn(async move {
+						timeout(Duration::from_millis(1), async {
+							let field_ref = handler
+								.to_typed_proxy::<FieldRefProxy>(&dbus_connection)
+								.await
+								.ok()?;
+							let uid = field_ref.uid().await.ok()?;
+							Some((handler, uid))
+						})
+						.await
+						.ok()
+						.flatten()
+					});
 				}
-			})
-			.map(|(rx, _)| rx);
+				while let Some(Ok(Some((handler, field_ref_id)))) = join_set.join_next().await {
+					let exported_fields = EXPORTED_FIELDS.lock();
+					let Some(field_ref_node) = exported_fields.get(&field_ref_id) else {
+						println!("didn't find a thing :(");
+						continue;
+					};
+					// println!("still sendin stuff :)");
+					let Ok(field_ref) = field_ref_node.get_aspect::<Field>() else {
+						continue;
+					};
+					drop(exported_fields);
 
-		if let Some(rx) = rx {
-			let keys = (8_u32..254)
-				.filter_map(|i| Key::try_from(i).ok())
-				.filter_map(|k| Some((map_key(k)?, sk.input_key(k))))
-				.filter_map(|(i, k)| {
-					if k.contains(ButtonState::JUST_ACTIVE) {
-						Some(i as i32)
-					} else if k.contains(ButtonState::JUST_INACTIVE) {
-						Some(-(i as i32))
-					} else {
-						None
+					let result = field_ref.ray_march(Ray {
+						origin: vec3(0.0, 0.0, 0.0),
+						direction: vec3(0.0, 0.0, -1.0),
+						space: spatial.clone(),
+					});
+
+					if result.deepest_point_distance > 0.0
+						&& result.min_distance < 0.05
+						&& result.deepest_point_distance < closest_distance
+					{
+						closest_distance = result.deepest_point_distance;
+						closest_handler = Some(handler);
 					}
-				})
-				.collect();
+				}
 
-			self.keyboard_datamap.keys = keys;
-			if !self.keyboard_datamap.keys.is_empty() {
-				rx.send_data(&self.node.uid, self.keyboard_datamap.serialize().unwrap())
-					.unwrap();
+				let Some(handler) = closest_handler else {
+					return;
+				};
+				let Ok(keyboard_handler) = handler
+					.to_typed_proxy::<KeyboardHandlerProxy>(&dbus_connection)
+					.await
+				else {
+					return;
+				};
+
+				// Register keymap first
+				let _ = keyboard_handler.keymap(keymap_id).await;
+
+				// Send key states
+				for i in 8_u32..254 {
+					let key = unsafe { std::mem::transmute::<u32, stereokit_rust::system::Key>(i) };
+					let Some(mapped_key) = map_key(key) else {
+						continue;
+					};
+					let input_state = Input::key(key);
+					if input_state.is_just_active() {
+						let _ = keyboard_handler.key_state(mapped_key + 8, true).await;
+					} else if input_state.is_just_inactive() {
+						let _ = keyboard_handler.key_state(mapped_key + 8, false).await;
+					}
+				}
 			}
-		}
+		});
 	}
 }
 
@@ -231,9 +327,9 @@ fn map_key(key: Key) -> Option<u32> {
 		Key::F3 => Some(input_event_codes::KEY_F3!()),
 		Key::F4 => Some(input_event_codes::KEY_F4!()),
 		Key::F5 => Some(input_event_codes::KEY_F5!()),
-		Key::F6 => Some(input_event_codes::KEY_F6!()),
-		Key::F7 => Some(input_event_codes::KEY_F7!()),
-		Key::F8 => Some(input_event_codes::KEY_F8!()),
+		// Key::F6 => Some(input_event_codes::KEY_F6!()),
+		// Key::F7 => Some(input_event_codes::KEY_F7!()),
+		// Key::F8 => Some(input_event_codes::KEY_F8!()),
 		Key::F9 => Some(input_event_codes::KEY_F9!()),
 		Key::F10 => Some(input_event_codes::KEY_F10!()),
 		Key::F11 => Some(input_event_codes::KEY_F11!()),
@@ -248,7 +344,7 @@ fn map_key(key: Key) -> Option<u32> {
 		Key::BracketClose => Some(input_event_codes::KEY_RIGHTBRACE!()),
 		Key::Minus => Some(input_event_codes::KEY_MINUS!()),
 		Key::Equals => Some(input_event_codes::KEY_EQUAL!()),
-		Key::Backtick => None,
+		Key::Backtick => Some(input_event_codes::KEY_GRAVE!()),
 		Key::LCmd => Some(input_event_codes::KEY_LEFTMETA!()),
 		Key::RCmd => Some(input_event_codes::KEY_RIGHTMETA!()),
 		Key::Multiply => Some(input_event_codes::KEY_NUMERIC_STAR!()),

src/objects/input/sk_controller.rs

@@ -1,78 +1,139 @@
+use super::{CaptureManager, get_sorted_handlers};
 use crate::{
-	core::{client::INTERNAL_CLIENT, typed_datamap::TypedDatamap},
+	core::client::INTERNAL_CLIENT,
 	nodes::{
-		input::{tip::Tip, InputMethod, InputType},
+		Node, OwnedNode,
+		fields::{Field, FieldTrait},
+		input::{INPUT_HANDLER_REGISTRY, InputDataType, InputHandler, InputMethod, Tip},
 		spatial::Spatial,
-		Node,
 	},
+	objects::{ObjectHandle, SpatialRef, Tracked},
 };
 use color_eyre::eyre::Result;
 use glam::{Mat4, Vec2, Vec3};
 use serde::{Deserialize, Serialize};
+use stardust_xr::values::Datamap;
 use std::sync::Arc;
-use stereokit::{
-	named_colors::WHITE, ButtonState, Handed, Model, RenderLayer, StereoKitDraw,
-	StereoKitMultiThread,
+use stereokit_rust::{
+	material::Material,
+	model::Model,
+	sk::MainThreadToken,
+	system::{Handed, Input},
+	util::Color128,
 };
+use zbus::Connection;
 
-#[derive(Default, Deserialize, Serialize)]
+#[derive(Default, Debug, Deserialize, Serialize)]
 struct ControllerDatamap {
 	select: f32,
+	middle: f32,
+	context: f32,
 	grab: f32,
 	scroll: Vec2,
 }
 
 pub struct SkController {
-	_node: Arc<Node>,
+	object_handle: ObjectHandle<SpatialRef>,
 	input: Arc<InputMethod>,
-	model: Model,
 	handed: Handed,
-	datamap: TypedDatamap<ControllerDatamap>,
+	model: Model,
+	material: Material,
+	capture_manager: CaptureManager,
+	datamap: ControllerDatamap,
+	tracked: ObjectHandle<Tracked>,
 }
 impl SkController {
-	pub fn new(sk: &impl StereoKitMultiThread, handed: Handed) -> Result<Self> {
-		let _node = Node::create(
-			&INTERNAL_CLIENT,
-			"",
-			if handed == Handed::Left {
-				"controller_left"
-			} else {
-				"controller_right"
-			},
-			false,
-		)
-		.add_to_scenegraph()?;
-		Spatial::add_to(&_node, None, Mat4::IDENTITY, false)?;
-		let model = sk.model_create_mem("cursor.glb", include_bytes!("cursor.glb"), None)?;
-		let tip = InputType::Tip(Tip::default());
-		let input = InputMethod::add_to(&_node, tip, None)?;
+	pub fn new(connection: &Connection, handed: Handed) -> Result<Self> {
+		Input::set_controller_model(handed, Some(Model::new()));
+		let path = "/org/stardustxr/Controller/".to_string()
+			+ match handed {
+				Handed::Left => "left",
+				_ => "right",
+			};
+		let (spatial, object_handle) = SpatialRef::create(connection, &path);
+		let tracked = Tracked::new(connection, &path);
+		let model = Model::copy(&Model::from_memory(
+			"cursor.glb",
+			include_bytes!("cursor.glb"),
+			None,
+		)?);
+		let model_nodes = model.get_nodes();
+		let mut model_node = model_nodes.visuals().next().unwrap();
+		let material = Material::copy(&model_node.get_material().unwrap());
+		model_node.material(&material);
+		let tip = InputDataType::Tip(Tip::default());
+		let input = InputMethod::add_to(
+			&spatial.node().unwrap(),
+			tip,
+			Datamap::from_typed(ControllerDatamap::default())?,
+		)?;
 		Ok(SkController {
-			_node,
+			object_handle,
 			input,
 			handed,
 			model,
+			material,
+			capture_manager: CaptureManager::default(),
 			datamap: Default::default(),
+			tracked,
 		})
 	}
-	pub fn update(&mut self, sk: &impl StereoKitDraw) {
-		let controller = sk.input_controller(self.handed);
-		*self.input.enabled.lock() = controller.tracked.contains(ButtonState::ACTIVE);
-		if *self.input.enabled.lock() {
+	pub fn update(&mut self, token: &MainThreadToken) {
+		let controller = Input::controller(self.handed);
+		let input_node = self.input.spatial.node().unwrap();
+		input_node.set_enabled(controller.tracked.is_active());
+		let enabled = input_node.enabled();
+		tokio::spawn({
+			// this is suboptimal since it probably allocates a fresh string every frame
+			let handle = self.tracked.clone();
+			async move {
+				handle.set_tracked(enabled).await;
+			}
+		});
+		if enabled {
 			let world_transform = Mat4::from_rotation_translation(
-				controller.aim.orientation,
-				controller.aim.position,
+				controller.aim.orientation.into(),
+				controller.aim.position.into(),
 			);
-			sk.model_draw(
-				&self.model,
+			self.material
+				.color_tint(if self.capture_manager.capture.upgrade().is_none() {
+					Color128::new_rgb(1.0, 1.0, 1.0)
+				} else {
+					Color128::new_rgb(0.0, 1.0, 0.75)
+				});
+			self.model.draw(
+				token,
 				world_transform * Mat4::from_scale(Vec3::ONE * 0.02),
-				WHITE,
-				RenderLayer::LAYER0,
+				None,
+				None,
 			);
 			self.input.spatial.set_local_transform(world_transform);
 		}
-		self.datamap.select = controller.trigger;
-		self.datamap.grab = controller.grip;
-		self.datamap.scroll = controller.stick;
-		*self.input.datamap.lock() = self.datamap.to_datamap().ok();
+
+		self.datamap = ControllerDatamap {
+			select: controller.trigger,
+			middle: controller.stick_click.is_active() as u32 as f32,
+			context: controller.is_x2_pressed() as u32 as f32,
+			grab: controller.grip,
+			scroll: controller.stick.into(),
+		};
+		*self.input.datamap.lock() = Datamap::from_typed(&self.datamap).unwrap();
+
+		let distance_calculator = |space: &Arc<Spatial>, _data: &InputDataType, field: &Field| {
+			Some(field.distance(space, [0.0; 3].into()).abs())
+		};
+
+		self.capture_manager.update_capture(&self.input);
+		self.capture_manager
+			.set_new_capture(&self.input, distance_calculator);
+		self.capture_manager.apply_capture(&self.input);
+
+		if self.capture_manager.capture.upgrade().is_some() {
+			return;
+		}
+
+		let sorted_handlers = get_sorted_handlers(&self.input, distance_calculator);
+		self.input
+			.set_handler_order(sorted_handlers.iter().map(|(handler, _)| handler));
 	}
 }

src/objects/input/sk_hand.rs

@@ -1,23 +1,30 @@
-use crate::{
-	core::{client::INTERNAL_CLIENT, typed_datamap::TypedDatamap},
-	nodes::{
-		input::{hand::Hand, InputMethod, InputType},
-		spatial::Spatial,
-		Node,
-	},
+use crate::core::client::INTERNAL_CLIENT;
+use crate::nodes::OwnedNode;
+use crate::nodes::fields::{Field, FieldTrait};
+use crate::nodes::input::{INPUT_HANDLER_REGISTRY, InputDataType, InputHandler};
+use crate::nodes::{
+	Node,
+	input::{Hand, InputMethod, Joint},
+	spatial::Spatial,
 };
+use crate::objects::{ObjectHandle, SpatialRef, Tracked};
 use color_eyre::eyre::Result;
-use glam::Mat4;
-use nanoid::nanoid;
+use glam::{Mat4, Quat, Vec3};
 use serde::{Deserialize, Serialize};
-use stardust_xr::schemas::flat::{Hand as FlatHand, Joint};
+use stardust_xr::values::Datamap;
 use std::sync::Arc;
-use stereokit::{ButtonState, HandJoint, Handed, StereoKitMultiThread};
+use stereokit_rust::material::Material;
+use stereokit_rust::sk::{DisplayMode, MainThreadToken, Sk};
+use stereokit_rust::system::{HandJoint, HandSource, Handed, Input, LinePoint, Lines};
+use stereokit_rust::util::Color128;
+use zbus::Connection;
+
+use super::{CaptureManager, get_sorted_handlers};
 
 fn convert_joint(joint: HandJoint) -> Joint {
 	Joint {
-		position: joint.position.into(),
-		rotation: joint.orientation.into(),
+		position: Vec3::from(joint.position).into(),
+		rotation: Quat::from(joint.orientation).into(),
 		radius: joint.radius,
 		distance: 0.0,
 	}
@@ -30,52 +37,84 @@ struct HandDatamap {
 }
 
 pub struct SkHand {
-	_node: Arc<Node>,
-	input: Arc<InputMethod>,
+	_node: OwnedNode,
+	palm_spatial: Arc<Spatial>,
+	palm_object: ObjectHandle<SpatialRef>,
 	handed: Handed,
-	datamap: TypedDatamap<HandDatamap>,
+	input: Arc<InputMethod>,
+	capture_manager: CaptureManager,
+	datamap: HandDatamap,
+	tracked: ObjectHandle<Tracked>,
 }
 impl SkHand {
-	pub fn new(handed: Handed) -> Result<Self> {
-		let _node = Node::create(&INTERNAL_CLIENT, "", &nanoid!(), false).add_to_scenegraph()?;
-		Spatial::add_to(&_node, None, Mat4::IDENTITY, false)?;
-		let hand = InputType::Hand(Box::new(Hand {
-			base: FlatHand {
-				right: handed == Handed::Right,
-				..Default::default()
-			},
-		}));
-		let input = InputMethod::add_to(&_node, hand, None)?;
+	pub fn new(connection: &Connection, handed: Handed) -> Result<Self> {
+		let (palm_spatial, palm_object) = SpatialRef::create(
+			connection,
+			&("/org/stardustxr/Hand/".to_string()
+				+ match handed {
+					Handed::Left => "left",
+					_ => "right",
+				} + "/palm"),
+		);
+		let tracked = Tracked::new(
+			connection,
+			&("/org/stardustxr/Hand/".to_string()
+				+ match handed {
+					Handed::Left => "left",
+					_ => "right",
+				}),
+		);
+		let _node = Node::generate(&INTERNAL_CLIENT, false).add_to_scenegraph_owned()?;
+		Spatial::add_to(&_node.0, None, Mat4::IDENTITY, false);
+		let hand = InputDataType::Hand(Hand {
+			right: handed == Handed::Right,
+			..Default::default()
+		});
+		let datamap = Datamap::from_typed(HandDatamap::default())?;
+		let input = InputMethod::add_to(&_node.0, hand, datamap)?;
+		Input::hand_visible(handed, true);
+
 		Ok(SkHand {
 			_node,
-			input,
+			palm_spatial,
+			palm_object,
 			handed,
+			input,
+			tracked,
+			capture_manager: CaptureManager::default(),
 			datamap: Default::default(),
 		})
 	}
-	pub fn update(&mut self, controller_enabled: bool, sk: &impl StereoKitMultiThread) {
-		let sk_hand = sk.input_hand(self.handed);
-		if let InputType::Hand(hand) = &mut *self.input.specialization.lock() {
-			let controller_active = controller_enabled
-				&& sk
-					.input_controller(self.handed)
-					.tracked
-					.contains(ButtonState::ACTIVE);
-			*self.input.enabled.lock() =
-				!controller_active && sk_hand.tracked_state.contains(ButtonState::ACTIVE);
-			sk.input_hand_visible(self.handed, *self.input.enabled.lock());
-			if *self.input.enabled.lock() {
-				hand.base.thumb.tip = convert_joint(sk_hand.fingers[0][4]);
-				hand.base.thumb.distal = convert_joint(sk_hand.fingers[0][3]);
-				hand.base.thumb.proximal = convert_joint(sk_hand.fingers[0][2]);
-				hand.base.thumb.metacarpal = convert_joint(sk_hand.fingers[0][1]);
+	pub fn update(&mut self, sk: &Sk, token: &MainThreadToken, material: &mut Material) {
+		let sk_hand = Input::hand(self.handed);
+		let real_hand = Input::hand_source(self.handed) as u32 == HandSource::Articulated as u32;
+		if let InputDataType::Hand(hand) = &mut *self.input.data.lock() {
+			let input_node = self.input.spatial.node().unwrap();
+			input_node.set_enabled(
+				(real_hand || sk.get_active_display_mode() == DisplayMode::Flatscreen)
+					&& sk_hand.tracked.is_active(),
+			);
+			let enabled = input_node.enabled();
+			tokio::spawn({
+				// this is suboptimal since it probably allocates a fresh string every frame
+				let handle = self.tracked.clone();
+				async move {
+					handle.set_tracked(enabled).await;
+				}
+			});
+			if enabled {
+				hand.thumb.tip = convert_joint(sk_hand.fingers[0][4]);
+				hand.thumb.distal = convert_joint(sk_hand.fingers[0][3]);
+				hand.thumb.proximal = convert_joint(sk_hand.fingers[0][2]);
+				hand.thumb.metacarpal = convert_joint(sk_hand.fingers[0][1]);
 
-				for (finger, sk_finger) in [
-					(&mut hand.base.index, sk_hand.fingers[1]),
-					(&mut hand.base.middle, sk_hand.fingers[2]),
-					(&mut hand.base.ring, sk_hand.fingers[3]),
-					(&mut hand.base.little, sk_hand.fingers[4]),
+				for (finger, mut sk_finger) in [
+					(&mut hand.index, sk_hand.fingers[1]),
+					(&mut hand.middle, sk_hand.fingers[2]),
+					(&mut hand.ring, sk_hand.fingers[3]),
+					(&mut hand.little, sk_hand.fingers[4]),
 				] {
+					sk_finger[4].radius = 0.0;
 					finger.tip = convert_joint(sk_finger[4]);
 					finger.distal = convert_joint(sk_finger[3]);
 					finger.intermediate = convert_joint(sk_finger[2]);
@@ -83,21 +122,77 @@ impl SkHand {
 					finger.metacarpal = convert_joint(sk_finger[0]);
 				}
 
-				hand.base.palm.position = sk_hand.palm.position.into();
-				hand.base.palm.rotation = sk_hand.palm.orientation.into();
-				hand.base.palm.radius =
+				hand.palm.position = Vec3::from(sk_hand.palm.position).into();
+				hand.palm.rotation = Quat::from(sk_hand.palm.orientation).into();
+				hand.palm.radius =
 					(sk_hand.fingers[2][0].radius + sk_hand.fingers[2][1].radius) * 0.5;
 
-				hand.base.wrist.position = sk_hand.wrist.position.into();
-				hand.base.wrist.rotation = sk_hand.wrist.orientation.into();
-				hand.base.wrist.radius =
+				self.palm_spatial
+					.set_local_transform(Mat4::from_rotation_translation(
+						hand.palm.rotation.into(),
+						hand.palm.position.into(),
+					));
+
+				hand.wrist.position = Vec3::from(sk_hand.wrist.position).into();
+				hand.wrist.rotation = Quat::from(sk_hand.wrist.orientation).into();
+				hand.wrist.radius =
 					(sk_hand.fingers[0][0].radius + sk_hand.fingers[4][0].radius) * 0.5;
 
-				hand.base.elbow = None;
+				hand.elbow = None;
+
+				let hand_color = if self.capture_manager.capture.upgrade().is_none() {
+					Color128::new_rgb(1.0, 1.0, 1.0)
+				} else {
+					Color128::new_rgb(0.0, 1.0, 0.75)
+				};
+				material.color_tint(hand_color);
 			}
 		}
 		self.datamap.pinch_strength = sk_hand.pinch_activation;
 		self.datamap.grab_strength = sk_hand.grip_activation;
-		*self.input.datamap.lock() = self.datamap.to_datamap().ok();
+		*self.input.datamap.lock() = Datamap::from_typed(&self.datamap).unwrap();
+
+		let distance_calculator = |space: &Arc<Spatial>, data: &InputDataType, field: &Field| {
+			let InputDataType::Hand(hand) = data else {
+				return None;
+			};
+			let thumb_tip_distance = field.distance(space, hand.thumb.tip.position.into());
+			let index_tip_distance = field.distance(space, hand.index.tip.position.into());
+			let middle_tip_distance = field.distance(space, hand.middle.tip.position.into());
+			let ring_tip_distance = field.distance(space, hand.ring.tip.position.into());
+
+			Some(
+				(thumb_tip_distance * 0.3)
+					+ (index_tip_distance * 0.4)
+					+ (middle_tip_distance * 0.15)
+					+ (ring_tip_distance * 0.15),
+			)
+		};
+
+		self.capture_manager.update_capture(&self.input);
+		self.capture_manager
+			.set_new_capture(&self.input, distance_calculator);
+		self.capture_manager.apply_capture(&self.input);
+
+		if self.capture_manager.capture.upgrade().is_some() {
+			return;
+		}
+
+		let sorted_handlers = get_sorted_handlers(&self.input, distance_calculator);
+		self.input
+			.set_handler_order(sorted_handlers.iter().map(|(handler, _)| handler));
+	}
+}
+impl Drop for SkHand {
+	fn drop(&mut self) {
+		Input::hand_visible(self.handed, false);
+	}
+}
+
+fn joint_to_line_point(joint: &Joint, color: Color128) -> LinePoint {
+	LinePoint {
+		pt: Vec3::from(joint.position).into(),
+		thickness: joint.radius * 2.0,
+		color: color.into(),
 	}
 }

src/objects/mod.rs

@@ -1,2 +1,342 @@
+#![allow(unused)]
+
+use crate::{
+	core::client::INTERNAL_CLIENT,
+	nodes::{
+		Node, OwnedNode,
+		fields::{EXPORTED_FIELDS, Field, Shape},
+		spatial::{EXPORTED_SPATIALS, Spatial},
+	},
+};
+use glam::{Mat4, vec3};
+use input::{
+	eye_pointer::EyePointer, mouse_pointer::MousePointer, sk_controller::SkController,
+	sk_hand::SkHand,
+};
+use play_space::PlaySpaceBounds;
+use stardust_xr::schemas::dbus::object_registry::ObjectRegistry;
+use std::{
+	marker::PhantomData,
+	sync::{Arc, atomic::Ordering},
+};
+use stereokit_rust::{
+	material::Material,
+	sk::{DisplayMode, MainThreadToken, Sk},
+	system::{Handed, Input, Key, World},
+	util::Device,
+};
+use zbus::{Connection, interface, object_server::Interface, zvariant::OwnedObjectPath};
+
 pub mod input;
 pub mod play_space;
+
+enum Inputs {
+	XR {
+		controller_left: SkController,
+		controller_right: SkController,
+		hand_left: SkHand,
+		hand_right: SkHand,
+		eye_pointer: Option<EyePointer>,
+	},
+	MousePointer(MousePointer),
+	// Controllers((SkController, SkController)),
+	Hands {
+		left: SkHand,
+		right: SkHand,
+	},
+}
+
+pub struct ServerObjects {
+	connection: Connection,
+	hmd: (Arc<Spatial>, ObjectHandle<SpatialRef>),
+	play_space: Option<(Arc<Spatial>, ObjectHandle<SpatialRef>)>,
+	hand_materials: [Material; 2],
+	inputs: Inputs,
+	disable_controllers: bool,
+	disable_hands: bool,
+}
+impl ServerObjects {
+	pub fn new(
+		connection: Connection,
+		sk: &Sk,
+		hand_materials: [Material; 2],
+		disable_controllers: bool,
+		disable_hands: bool,
+	) -> ServerObjects {
+		let hmd = SpatialRef::create(&connection, "/org/stardustxr/HMD");
+
+		let play_space = Some(SpatialRef::create(&connection, "/org/stardustxr/PlaySpace"));
+		if play_space.is_some() {
+			let dbus_connection = connection.clone();
+			tokio::task::spawn(async move {
+				PlaySpaceBounds::create(&dbus_connection).await;
+				dbus_connection
+					.request_name("org.stardustxr.PlaySpace")
+					.await
+					.unwrap();
+			});
+		}
+
+		tokio::task::spawn({
+			let connection = connection.clone();
+			async move {
+				connection
+					.request_name("org.stardustxr.Controllers")
+					.await
+					.unwrap();
+				connection
+					.request_name("org.stardustxr.Hands")
+					.await
+					.unwrap();
+			}
+		});
+
+		let inputs = if sk.get_active_display_mode() == DisplayMode::MixedReality {
+			Inputs::XR {
+				controller_left: SkController::new(&connection, Handed::Left).unwrap(),
+				controller_right: SkController::new(&connection, Handed::Right).unwrap(),
+				hand_left: SkHand::new(&connection, Handed::Left).unwrap(),
+				hand_right: SkHand::new(&connection, Handed::Right).unwrap(),
+				eye_pointer: Device::has_eye_gaze()
+					.then(EyePointer::new)
+					.transpose()
+					.unwrap(),
+			}
+		} else {
+			Inputs::MousePointer(MousePointer::new().unwrap())
+		};
+
+		ServerObjects {
+			connection,
+			hmd,
+			play_space,
+			hand_materials,
+			inputs,
+			disable_controllers,
+			disable_hands,
+		}
+	}
+
+	pub fn update(
+		&mut self,
+		sk: &Sk,
+		token: &MainThreadToken,
+		dbus_connection: &Connection,
+		object_registry: &ObjectRegistry,
+	) {
+		let hmd_pose = Input::get_head();
+		self.hmd
+			.0
+			.set_local_transform(Mat4::from_scale_rotation_translation(
+				vec3(1.0, 1.0, 1.0),
+				hmd_pose.orientation.into(),
+				hmd_pose.position.into(),
+			));
+
+		if let Some(play_space) = self.play_space.as_ref() {
+			let pose = World::get_bounds_pose();
+			play_space
+				.0
+				.set_local_transform(Mat4::from_rotation_translation(
+					pose.orientation.into(),
+					pose.position.into(),
+				));
+		}
+
+		#[allow(clippy::collapsible_if)]
+		if sk.get_active_display_mode() != DisplayMode::MixedReality {
+			if Input::key(Key::F6).is_just_inactive() {
+				self.inputs = Inputs::MousePointer(MousePointer::new().unwrap());
+			}
+			// if Input::key(Key::F7).is_just_inactive() {
+			// 	self.inputs = Inputs::Controllers((
+			// 		SkController::new(Handed::Left).unwrap(),
+			// 		SkController::new(Handed::Right).unwrap(),
+			// 	));
+			// }
+			// if Input::key(Key::F8).is_just_inactive() {
+			// 	self.inputs = Inputs::Hands {
+			// 		left: SkHand::new(&self.connection, Handed::Left).unwrap(),
+			// 		right: SkHand::new(&self.connection, Handed::Right).unwrap(),
+			// 	};
+			// }
+		}
+
+		match &mut self.inputs {
+			Inputs::XR {
+				controller_left,
+				controller_right,
+				hand_left,
+				hand_right,
+				eye_pointer,
+			} => {
+				if !self.disable_controllers {
+					controller_left.update(token);
+					controller_right.update(token);
+				}
+				Input::hand_visible(Handed::Left, !self.disable_hands);
+				Input::hand_visible(Handed::Right, !self.disable_hands);
+				if !self.disable_hands {
+					hand_left.update(sk, token, &mut self.hand_materials[0]);
+					hand_right.update(sk, token, &mut self.hand_materials[1]);
+				}
+				if let Some(eye_pointer) = eye_pointer {
+					eye_pointer.update();
+				}
+			}
+			Inputs::MousePointer(mouse_pointer) => {
+				mouse_pointer.update(dbus_connection, object_registry)
+			}
+			// Inputs::Controllers((left, right)) => {
+			// 	left.update(token);
+			// 	right.update(token);
+			// }
+			Inputs::Hands { left, right } => {
+				left.update(sk, token, &mut self.hand_materials[0]);
+				right.update(sk, token, &mut self.hand_materials[1]);
+			}
+		}
+	}
+}
+
+pub struct ObjectHandle<I: Interface>(Connection, OwnedObjectPath, PhantomData<I>);
+
+impl<I: Interface> Clone for ObjectHandle<I> {
+	fn clone(&self) -> Self {
+		Self(self.0.clone(), self.1.clone(), PhantomData)
+	}
+}
+impl<I: Interface> Drop for ObjectHandle<I> {
+	fn drop(&mut self) {
+		let connection = self.0.clone();
+		let object_path = self.1.clone();
+		tokio::task::spawn(async move {
+			connection.object_server().remove::<I, _>(object_path);
+		});
+	}
+}
+
+pub struct SpatialRef(u64, OwnedNode);
+impl SpatialRef {
+	pub fn create(connection: &Connection, path: &str) -> (Arc<Spatial>, ObjectHandle<SpatialRef>) {
+		let node = OwnedNode(Arc::new(Node::generate(&INTERNAL_CLIENT, false)));
+		let spatial = Spatial::add_to(&node.0, None, Mat4::IDENTITY, false);
+		let uid: u64 = rand::random();
+		EXPORTED_SPATIALS.lock().insert(uid, node.0.clone());
+
+		tokio::task::spawn({
+			let connection = connection.clone();
+			let path = path.to_string();
+			async move {
+				connection
+					.object_server()
+					.at(path, Self(uid, node))
+					.await
+					.unwrap();
+			}
+		});
+		(
+			spatial,
+			ObjectHandle(
+				connection.clone(),
+				OwnedObjectPath::try_from(path.to_string()).unwrap(),
+				PhantomData,
+			),
+		)
+	}
+}
+#[interface(name = "org.stardustxr.SpatialRef")]
+impl SpatialRef {
+	#[zbus(property)]
+	fn uid(&self) -> u64 {
+		self.0
+	}
+}
+
+pub struct Tracked(bool);
+impl Tracked {
+	pub fn new(connection: &Connection, path: &str) -> ObjectHandle<Tracked> {
+		tokio::task::spawn({
+			let connection = connection.clone();
+			let path = path.to_string();
+			async move {
+				connection
+					.object_server()
+					.at(path, Self(false))
+					.await
+					.unwrap();
+			}
+		});
+		ObjectHandle(
+			connection.clone(),
+			OwnedObjectPath::try_from(path.to_string()).unwrap(),
+			PhantomData,
+		)
+	}
+}
+impl ObjectHandle<Tracked> {
+	pub async fn set_tracked(&self, is_tracked: bool) -> zbus::Result<()> {
+		let tracked_ref = self
+			.0
+			.object_server()
+			.interface::<_, Tracked>(self.1.as_ref())
+			.await?;
+		let mut tracked = tracked_ref.get_mut().await;
+		if tracked.0 != is_tracked {
+			tracked.0 = is_tracked;
+			tracked
+				.is_tracked_changed(tracked_ref.signal_emitter())
+				.await;
+		}
+		Ok(())
+	}
+}
+#[interface(name = "org.stardustxr.Tracked")]
+impl Tracked {
+	#[zbus(property)]
+	fn is_tracked(&self) -> bool {
+		self.0
+	}
+}
+
+pub struct FieldRef(u64, OwnedNode);
+impl FieldRef {
+	pub fn create(
+		connection: &Connection,
+		path: &str,
+		shape: Shape,
+	) -> (Arc<Field>, ObjectHandle<FieldRef>) {
+		let node = OwnedNode(Arc::new(Node::generate(&INTERNAL_CLIENT, false)));
+		Spatial::add_to(&node.0, None, Mat4::IDENTITY, false);
+		let field = Field::add_to(&node.0, shape).unwrap();
+		let uid: u64 = rand::random();
+		EXPORTED_FIELDS.lock().insert(uid, node.0.clone());
+
+		tokio::task::spawn({
+			let connection = connection.clone();
+			let path = path.to_string();
+			async move {
+				connection
+					.object_server()
+					.at(path, Self(uid, node))
+					.await
+					.unwrap();
+			}
+		});
+		(
+			field,
+			ObjectHandle(
+				connection.clone(),
+				OwnedObjectPath::try_from(path.to_string()).unwrap(),
+				PhantomData,
+			),
+		)
+	}
+}
+#[interface(name = "org.stardustxr.FieldRef")]
+impl FieldRef {
+	#[zbus(property)]
+	fn uid(&self) -> u64 {
+		self.0
+	}
+}

src/objects/play_space.rs

@@ -1,73 +1,33 @@
-use std::sync::Arc;
+use stereokit_rust::system::World;
+use zbus::{Connection, ObjectServer, interface};
 
-use color_eyre::eyre::Result;
-use glam::Mat4;
-use mint::Vector2;
-use nanoid::nanoid;
-use serde::{Deserialize, Serialize};
-use stereokit::StereoKitMultiThread;
-
-use crate::{
-	core::client::INTERNAL_CLIENT,
-	nodes::{
-		data::{Mask, PulseReceiver},
-		fields::{r#box::BoxField, Field},
-		spatial::Spatial,
-		Node,
-	},
-};
-
-#[derive(Debug, Deserialize, Serialize)]
-struct PlaySpaceMap {
-	play_space: (),
-	size: Vector2<f32>,
+pub struct PlaySpaceBounds;
+impl PlaySpaceBounds {
+	pub async fn create(connection: &Connection) {
+		connection
+			.object_server()
+			.at("/org/stardustxr/PlaySpace", Self)
+			.await
+			.unwrap();
+	}
 }
-impl Default for PlaySpaceMap {
-	fn default() -> Self {
-		Self {
-			play_space: (),
-			size: [0.0; 2].into(),
+#[interface(name = "org.stardustxr.PlaySpace")]
+impl PlaySpaceBounds {
+	#[zbus(property)]
+	fn bounds(&self) -> Vec<(f64, f64)> {
+		if (World::has_bounds()
+			&& World::get_bounds_size().x != 0.0
+			&& World::get_bounds_size().y != 0.0)
+		{
+			let bounds = World::get_bounds_size();
+			vec![
+				((bounds.x).into(), (bounds.y).into()),
+				((bounds.x).into(), (-bounds.y).into()),
+				((-bounds.x).into(), (-bounds.y).into()),
+				((-bounds.x).into(), (bounds.y).into()),
+			]
+		} else {
+			vec![]
 		}
 	}
 }
-
-pub struct PlaySpace {
-	_node: Arc<Node>,
-	spatial: Arc<Spatial>,
-	field: Arc<Field>,
-	_pulse_rx: Arc<PulseReceiver>,
-}
-impl PlaySpace {
-	pub fn new() -> Result<Self> {
-		let node = Node::create(&INTERNAL_CLIENT, "", &nanoid!(), false).add_to_scenegraph()?;
-		let spatial = Spatial::add_to(&node, None, Mat4::IDENTITY, false)?;
-		let field = BoxField::add_to(&node, [0.0; 3].into())?;
-
-		let pulse_rx =
-			PulseReceiver::add_to(&node, field.clone(), Mask::from_struct::<PlaySpaceMap>())?;
-
-		Ok(PlaySpace {
-			_node: node,
-			spatial,
-			field,
-			_pulse_rx: pulse_rx,
-		})
-	}
-	pub fn update(&self, sk: &impl StereoKitMultiThread) {
-		let pose = sk.world_get_bounds_pose();
-		self.spatial
-			.set_local_transform(Mat4::from_rotation_translation(
-				pose.orientation,
-				pose.position,
-			));
-		let Field::Box(box_field) = self.field.as_ref() else {return};
-		box_field.set_size(
-			[
-				sk.world_get_bounds_size().x,
-				0.0,
-				sk.world_get_bounds_size().y,
-			]
-			.into(),
-		);
-	}
-}

src/session.rs

@@ -0,0 +1,110 @@
+use crate::core::client::CLIENTS;
+use crate::core::client_state::ClientStateParsed;
+#[cfg(feature = "wayland")]
+use crate::wayland::WAYLAND_DISPLAY;
+use crate::{CliArgs, STARDUST_INSTANCE};
+use directories::ProjectDirs;
+use rustc_hash::FxHashMap;
+use std::os::unix::fs::PermissionsExt;
+use std::path::Path;
+use std::process::{Child, Command, Stdio};
+use std::time::Duration;
+use tokio::task::LocalSet;
+use tracing::info;
+
+pub async fn save_session(project_dirs: &ProjectDirs) {
+	let session_id = nanoid::nanoid!();
+	let state_dir = project_dirs.state_dir().unwrap();
+	let session_dir = state_dir.join(&session_id);
+	std::fs::create_dir_all(&session_dir).unwrap();
+	let _ = std::fs::remove_dir_all(state_dir.join("latest"));
+	std::os::unix::fs::symlink(&session_dir, state_dir.join("latest")).unwrap();
+
+	let local_set = LocalSet::new();
+	for client in CLIENTS.get_vec() {
+		let session_dir = session_dir.clone();
+		local_set.spawn_local(async move {
+			tokio::select! {
+				biased;
+				s = client.save_state() => {if let Some(s) = s { s.to_file(&session_dir) }},
+				_ = tokio::time::sleep(Duration::from_millis(100)) => (),
+			}
+		});
+	}
+	local_set.await;
+	info!("Session ID for restore is {session_id}");
+}
+
+pub fn launch_start(cli_args: &CliArgs, project_dirs: &ProjectDirs) -> Vec<Child> {
+	match (&cli_args.restore, &cli_args.startup_script) {
+		(Some(session_id), _) => restore_session(
+			&project_dirs.state_dir().unwrap().join(session_id),
+			cli_args.debug_launched_clients,
+		),
+		(None, Some(startup_script)) => run_script(
+			&startup_script.clone().canonicalize().unwrap_or_default(),
+			cli_args.debug_launched_clients,
+		),
+		(None, None) => run_script(
+			&project_dirs.config_dir().join("startup"),
+			cli_args.debug_launched_clients,
+		),
+	}
+}
+
+pub fn restore_session(session_dir: &Path, debug_launched_clients: bool) -> Vec<Child> {
+	let Ok(clients) = session_dir.read_dir() else {
+		return Vec::new();
+	};
+	clients
+		.filter_map(Result::ok)
+		.filter_map(|c| ClientStateParsed::from_file(&c.path()))
+		.filter_map(ClientStateParsed::launch_command)
+		.filter_map(|c| run_client(c, debug_launched_clients))
+		.collect()
+}
+
+pub fn run_script(script_path: &Path, debug_launched_clients: bool) -> Vec<Child> {
+	let _ = std::fs::set_permissions(script_path, std::fs::Permissions::from_mode(0o755));
+	let startup_command = Command::new(script_path);
+	run_client(startup_command, debug_launched_clients)
+		.map(|c| vec![c])
+		.unwrap_or_default()
+}
+
+pub fn run_client(mut command: Command, debug_launched_clients: bool) -> Option<Child> {
+	command.stdin(Stdio::null());
+	if !debug_launched_clients {
+		command.stdout(Stdio::null());
+		command.stderr(Stdio::null());
+	}
+	for (var, value) in connection_env() {
+		command.env(var, value);
+	}
+	let child = command.spawn().ok()?;
+	Some(child)
+}
+
+pub fn connection_env() -> FxHashMap<String, String> {
+	macro_rules! var_env_insert {
+		($env:ident, $name:ident) => {
+			$env.insert(stringify!($name).to_string(), $name.get().unwrap().clone());
+		};
+	}
+
+	let mut env: FxHashMap<String, String> = FxHashMap::default();
+	var_env_insert!(env, STARDUST_INSTANCE);
+
+	if let Some(flat_wayland_display) = std::env::var_os("WAYLAND_DISPLAY") {
+		env.insert(
+			"FLAT_WAYLAND_DISPLAY".to_string(),
+			flat_wayland_display.to_string_lossy().into_owned(),
+		);
+	}
+	#[cfg(feature = "wayland")]
+	{
+		var_env_insert!(env, WAYLAND_DISPLAY);
+		env.insert("XDG_SESSION_TYPE".to_string(), "wayland".to_string());
+	}
+	env
+}

src/wayland/compositor.rs

@@ -1,16 +1,27 @@
-use crate::wayland::surface::CoreSurface;
-
-use super::state::{ClientState, WaylandState};
-use portable_atomic::{AtomicU32, Ordering};
-#[cfg(feature = "xwayland")]
-use smithay::xwayland::XWaylandClientData;
+use super::{
+	state::{ClientState, WaylandState},
+	utils::{ChildInfoExt, WlSurfaceExt},
+	xdg_shell::surface_panel_item,
+};
+use crate::{
+	nodes::items::panel::{ChildInfo, Geometry, SurfaceId},
+	wayland::surface::CoreSurface,
+};
+use parking_lot::Mutex;
+use rand::Rng;
 use smithay::{
+	backend::renderer::utils::{RendererSurfaceStateUserData, on_commit_buffer_handler},
 	delegate_compositor,
-	reexports::wayland_server::{protocol::wl_surface::WlSurface, Client},
-	wayland::compositor::{self, CompositorClientState, CompositorHandler, CompositorState},
+	desktop::PopupKind,
+	reexports::wayland_server::{Client, protocol::wl_surface::WlSurface},
+	wayland::compositor::{
+		CompositorClientState, CompositorHandler, CompositorState, add_post_commit_hook,
+	},
 };
 use std::sync::Arc;
-use tracing::debug;
+use tracing::{debug, warn};
+
+pub struct ConfiguredSurface;
 
 impl CompositorHandler for WaylandState {
 	fn compositor_state(&mut self) -> &mut CompositorState {
@@ -19,33 +30,121 @@ impl CompositorHandler for WaylandState {
 
 	fn commit(&mut self, surface: &WlSurface) {
 		debug!(?surface, "Surface commit");
-		let mut count = 0;
-		let core_surface = compositor::with_states(surface, |data| {
-			let count_new = data
-				.data_map
-				.insert_if_missing_threadsafe(|| AtomicU32::new(0));
-			if !count_new {
-				if let Some(stored_count) = data.data_map.get::<AtomicU32>() {
-					count = stored_count.fetch_add(1, Ordering::Relaxed);
-				}
-			}
 
-			data.data_map.get::<Arc<CoreSurface>>().cloned()
-		});
-		if let Some(core_surface) = core_surface {
-			core_surface.commit(count);
+		on_commit_buffer_handler::<WaylandState>(surface);
+
+		if let Some(toplevel) = self
+			.xdg_shell
+			.toplevel_surfaces()
+			.iter()
+			.find(|s| s.wl_surface() == surface)
+		{
+			if !toplevel.is_initial_configure_sent() {
+				debug!("Sending initial configure for toplevel surface");
+				toplevel.send_configure();
+				surface.insert_data(ConfiguredSurface);
+			}
+		}
+
+		self.popup_manager.commit(surface);
+		if let Some(PopupKind::Xdg(popup)) = self.popup_manager.find_popup(surface) {
+			if surface.insert_data(ConfiguredSurface) {
+				debug!("Configuring popup surface");
+				let _ = popup.send_configure();
+			}
 		}
 	}
 
 	fn client_compositor_state<'a>(&self, client: &'a Client) -> &'a CompositorClientState {
-		if let Some(client_state) = client.get_data::<ClientState>() {
-			&client_state.compositor_state
-		} else {
-			#[cfg(feature = "xwayland")]
-			if let Some(xwayland_client_data) = client.get_data::<XWaylandClientData>() {
-				return &xwayland_client_data.compositor_state;
+		&client.get_data::<ClientState>().unwrap().compositor_state
+	}
+
+	fn new_subsurface(&mut self, surface: &WlSurface, parent: &WlSurface) {
+		let id = rand::thread_rng().gen_range(0..u64::MAX);
+		surface.insert_data(SurfaceId::Child(id));
+		CoreSurface::add_to(surface);
+		let Some(parent_surface_id) = parent.get_data::<SurfaceId>() else {
+			warn!("Parent surface has no SurfaceId");
+			return;
+		};
+		surface.insert_data(Mutex::new(ChildInfo {
+			id,
+			parent: parent_surface_id,
+			geometry: Geometry {
+				origin: [0; 2].into(),
+				size: [256; 2].into(),
+			},
+			z_order: 1,
+			receives_input: false,
+		}));
+
+		let Some(panel_item) = surface_panel_item(parent) else {
+			warn!("Parent has no panel item");
+			return;
+		};
+		let panel_item_weak = Arc::downgrade(&panel_item);
+		add_post_commit_hook(surface, move |_: &mut WaylandState, _dh, surf| {
+			if surface_panel_item(surf).is_some() {
+				return;
 			}
-			unimplemented!()
+			debug!("Linking surface to panel item");
+			surf.insert_data(panel_item_weak.clone());
+
+			let Some(panel_item) = surface_panel_item(surf) else {
+				warn!("Failed to link surface to panel item");
+				return;
+			};
+
+			surf.with_child_info(|_info| {
+				panel_item.backend.reposition_child(surf);
+			});
+
+			debug!("Adding new child to panel item");
+			panel_item.backend.new_child(surf);
+		});
+
+		add_post_commit_hook(surface, move |_: &mut WaylandState, _dh, surf| {
+			let Some(view) = surf
+				.get_data_raw::<RendererSurfaceStateUserData, _, _>(|s| s.lock().ok()?.view())
+				.flatten()
+			else {
+				debug!("No view data for surface");
+				return;
+			};
+			let mut changed = false;
+			surf.with_child_info(|info| {
+				if info.geometry.origin.x != view.offset.x
+					&& info.geometry.origin.y != view.offset.y
+				{
+					changed = true;
+					debug!("Surface position changed");
+				}
+				if info.geometry.size.x != view.dst.w as u32
+					&& info.geometry.size.y != view.dst.h as u32
+				{
+					changed = true;
+					debug!("Surface size changed");
+				}
+				info.geometry.size = [view.dst.w as u32, view.dst.h as u32].into();
+			});
+
+			let Some(panel_item) = surface_panel_item(surf) else {
+				return;
+			};
+			if changed {
+				debug!("Repositioning child due to geometry change");
+				panel_item.backend.reposition_child(surf);
+			}
+		});
+	}
+
+	fn destroyed(&mut self, surface: &WlSurface) {
+		let Some(panel_item) = surface_panel_item(surface) else {
+			return;
+		};
+		if surface.get_child_info().is_some() {
+			debug!("Dropping destroyed child surface");
+			panel_item.backend.drop_child(surface);
 		}
 	}
 }

src/wayland/data_device.rs

@@ -1,4 +1,5 @@
 use smithay::reexports::wayland_server::{
+	Client, DataInit, Dispatch, DisplayHandle, GlobalDispatch, New, Resource,
 	protocol::{
 		wl_data_device::{
 			Request::{Release, SetSelection, StartDrag},
@@ -13,7 +14,6 @@ use smithay::reexports::wayland_server::{
 			WlDataSource,
 		},
 	},
-	Client, DataInit, Dispatch, DisplayHandle, GlobalDispatch, New, Resource,
 };
 
 use super::state::WaylandState;

src/wayland/decoration.rs

@@ -13,8 +13,8 @@ use smithay::{
 			Mode as KdeMode, OrgKdeKwinServerDecoration,
 		},
 		wayland_server::{
-			protocol::wl_surface::WlSurface, Client, DataInit, Dispatch, DisplayHandle,
-			GlobalDispatch, New, Resource, WEnum, Weak,
+			Client, DataInit, Dispatch, DisplayHandle, GlobalDispatch, New, Resource, WEnum, Weak,
+			protocol::wl_surface::WlSurface,
 		},
 	},
 	wayland::shell::{self, kde::decoration::KdeDecorationHandler},
@@ -90,7 +90,7 @@ impl KdeDecorationHandler for WaylandState {
 		decoration: &OrgKdeKwinServerDecoration,
 		mode: WEnum<KdeMode>,
 	) {
-		let Ok(mode) = mode.into_result() else {return};
+		let Ok(mode) = mode.into_result() else { return };
 		decoration.mode(mode);
 	}
 }

src/wayland/drm.rs

@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-3.0-only
+
+// Re-export only the actual code, and then only use this re-export
+// The `generated` module below is just some boilerplate to properly isolate stuff
+// and avoid exposing internal details.
+//
+// You can use all the types from my_protocol as if they went from `wayland_client::protocol`.
+pub use generated::wl_drm;
+
+#[allow(non_upper_case_globals, non_camel_case_types)]
+mod generated {
+	use smithay::reexports::wayland_server::{self, protocol::*};
+
+	pub mod __interfaces {
+		use smithay::reexports::wayland_server::protocol::__interfaces::*;
+		wayland_scanner::generate_interfaces!("src/wayland/wayland-drm.xml");
+	}
+	use self::__interfaces::*;
+
+	wayland_scanner::generate_server_code!("src/wayland/wayland-drm.xml");
+}
+
+use super::state::WaylandState;
+use smithay::{
+	backend::allocator::{
+		Fourcc, Modifier,
+		dmabuf::{Dmabuf, DmabufFlags},
+	},
+	reexports::wayland_server::{
+		Client, DataInit, Dispatch, DisplayHandle, GlobalDispatch, New, Resource,
+	},
+};
+use std::convert::TryFrom;
+
+impl GlobalDispatch<wl_drm::WlDrm, (), WaylandState> for WaylandState {
+	fn bind(
+		state: &mut WaylandState,
+		_dh: &DisplayHandle,
+		_client: &Client,
+		resource: New<wl_drm::WlDrm>,
+		_global_data: &(),
+		data_init: &mut DataInit<'_, WaylandState>,
+	) {
+		let drm_instance = data_init.init(resource, ());
+
+		drm_instance.device("/dev/dri/renderD128".to_string());
+		if drm_instance.version() >= 2 {
+			drm_instance.capabilities(wl_drm::Capability::Prime as u32);
+		}
+		for format in state.drm_formats.iter() {
+			if let Ok(converted) = wl_drm::Format::try_from(*format as u32) {
+				drm_instance.format(converted as u32);
+			}
+		}
+	}
+
+	fn can_view(_client: Client, _global_dataa: &()) -> bool {
+		true
+	}
+}
+
+impl Dispatch<wl_drm::WlDrm, (), WaylandState> for WaylandState {
+	fn request(
+		state: &mut WaylandState,
+		_client: &Client,
+		drm: &wl_drm::WlDrm,
+		request: wl_drm::Request,
+		_data: &(),
+		_dh: &DisplayHandle,
+		data_init: &mut DataInit<'_, WaylandState>,
+	) {
+		match request {
+			wl_drm::Request::Authenticate { .. } => drm.authenticated(),
+			wl_drm::Request::CreateBuffer { .. } => drm.post_error(
+				wl_drm::Error::InvalidName,
+				String::from("Flink handles are unsupported, use PRIME"),
+			),
+			wl_drm::Request::CreatePlanarBuffer { .. } => drm.post_error(
+				wl_drm::Error::InvalidName,
+				String::from("Flink handles are unsupported, use PRIME"),
+			),
+			wl_drm::Request::CreatePrimeBuffer {
+				id,
+				name,
+				width,
+				height,
+				format,
+				offset0,
+				stride0,
+				..
+			} => {
+				let format = match Fourcc::try_from(format) {
+					Ok(format) => {
+						if !state.drm_formats.contains(&format) {
+							drm.post_error(
+								wl_drm::Error::InvalidFormat,
+								String::from("Format not advertised by wl_drm"),
+							);
+							return;
+						}
+						format
+					}
+					Err(_) => {
+						drm.post_error(
+							wl_drm::Error::InvalidFormat,
+							String::from("Format unknown / not advertised by wl_drm"),
+						);
+						return;
+					}
+				};
+
+				if width < 1 || height < 1 {
+					drm.post_error(
+						wl_drm::Error::InvalidFormat,
+						String::from("width or height not positive"),
+					);
+					return;
+				}
+
+				let mut dma = Dmabuf::builder(
+					(width, height),
+					format,
+					Modifier::Invalid,
+					DmabufFlags::empty(),
+				);
+				dma.add_plane(name, 0, offset0 as u32, stride0 as u32);
+				match dma.build() {
+					Some(dmabuf) => {
+						state.dmabuf_tx.send((dmabuf.clone(), None)).unwrap();
+						data_init.init(id, dmabuf);
+					}
+					None => {
+						// Buffer import failed. The protocol documentation heavily implies killing the
+						// client is the right thing to do here.
+						drm.post_error(
+							wl_drm::Error::InvalidName,
+							"dmabuf global was destroyed on server",
+						);
+					}
+				}
+			}
+		}
+	}
+}

src/wayland/mod.rs

@@ -5,78 +5,88 @@ mod seat;
 mod state;
 mod surface;
 // mod xdg_activation;
+mod drm;
+mod utils;
 mod xdg_shell;
-#[cfg(feature = "xwayland")]
-pub mod xwayland;
 
 use self::{state::WaylandState, surface::CORE_SURFACES};
-use crate::core::buffers::BufferManager;
-use crate::wayland::seat::SeatData;
 use crate::{core::task, wayland::state::ClientState};
-use color_eyre::eyre::Result;
-use global_counter::primitive::exact::CounterU32;
-use once_cell::sync::OnceCell;
+use color_eyre::eyre::{Result, ensure};
 use parking_lot::Mutex;
-use sk::StereoKitDraw;
-use smithay::backend::allocator::dmabuf::Dmabuf;
-use smithay::backend::renderer::ImportDma;
-use smithay::reexports::wayland_server::backend::ClientId;
-use smithay::reexports::wayland_server::DisplayHandle;
-use smithay::reexports::wayland_server::{Display, ListeningSocket};
-use std::ffi::OsStr;
-use std::os::fd::OwnedFd;
-use std::os::unix::prelude::AsRawFd;
-use std::{
-	os::unix::{net::UnixListener, prelude::FromRawFd},
-	sync::Arc,
+use smithay::{
+	backend::{
+		allocator::dmabuf::Dmabuf,
+		egl::EGLContext,
+		renderer::{ImportDma, Renderer, gles::GlesRenderer},
+	},
+	output::Output,
+	reexports::wayland_server::{Display, DisplayHandle, ListeningSocket},
+	wayland::dmabuf,
 };
-use stereokit as sk;
-use tokio::sync::mpsc::UnboundedReceiver;
+use std::{
+	ffi::{OsStr, c_void},
+	os::fd::AsFd,
+	sync::{Arc, OnceLock},
+};
+use stereokit_rust::system::{Backend, BackendGraphics};
 use tokio::{
-	io::unix::AsyncFd, net::UnixListener as AsyncUnixListener, sync::mpsc, task::JoinHandle,
+	io::unix::AsyncFd,
+	sync::{
+		Notify,
+		mpsc::{self, UnboundedReceiver},
+	},
+	task::AbortHandle,
 };
 use tracing::{debug_span, info, instrument};
 
-pub static WAYLAND_DISPLAY: OnceCell<String> = OnceCell::new();
-pub static SERIAL_COUNTER: CounterU32 = CounterU32::new(0);
+pub static WAYLAND_DISPLAY: OnceLock<String> = OnceLock::new();
 
-pub struct DisplayWrapper(Mutex<Display<WaylandState>>, DisplayHandle);
-impl DisplayWrapper {
-	pub fn handle(&self) -> DisplayHandle {
-		self.1.clone()
-	}
-	pub fn dispatch_clients(&self, state: &mut WaylandState) -> Result<usize, std::io::Error> {
-		self.0.lock().dispatch_clients(state)
-	}
-	pub fn flush_clients(&self, client: Option<ClientId>) {
-		if let Some(mut lock) = self.0.try_lock() {
-			let _ = lock.backend().flush(client);
+struct EGLRawHandles {
+	display: *const c_void,
+	config: *const c_void,
+	context: *const c_void,
+}
+fn get_sk_egl() -> Result<EGLRawHandles> {
+	ensure!(
+		Backend::graphics() == BackendGraphics::OpenGLESEGL,
+		"StereoKit is not running using EGL!"
+	);
+
+	Ok(unsafe {
+		EGLRawHandles {
+			display: stereokit_rust::system::backend_opengl_egl_get_display() as *const c_void,
+			config: stereokit_rust::system::backend_opengl_egl_get_config() as *const c_void,
+			context: stereokit_rust::system::backend_opengl_egl_get_context() as *const c_void,
 		}
-	}
-	pub fn poll_fd(&self) -> Result<OwnedFd, std::io::Error> {
-		self.0.lock().backend().poll_fd().try_clone_to_owned()
-	}
+	})
 }
 
 pub struct Wayland {
-	display: Arc<DisplayWrapper>,
-	pub socket_name: Option<String>,
-	join_handle: JoinHandle<Result<()>>,
-	dmabuf_rx: UnboundedReceiver<Dmabuf>,
-	wayland_state: Arc<Mutex<WaylandState>>,
-	#[cfg(feature = "xwayland")]
-	pub xwayland_state: xwayland::XWaylandState,
+	flush_notify: Arc<Notify>,
+	client_listener: AbortHandle,
+	client_dispatcher: AbortHandle,
+	renderer: GlesRenderer,
+	output: Output,
+	dmabuf_rx: UnboundedReceiver<(Dmabuf, Option<dmabuf::ImportNotifier>)>,
 }
 impl Wayland {
-	pub fn new(buffer_manager: &BufferManager) -> Result<Self> {
+	pub fn new() -> Result<Self> {
+		let egl_raw_handles = get_sk_egl()?;
+		let renderer = unsafe {
+			GlesRenderer::new(EGLContext::from_raw(
+				egl_raw_handles.display,
+				egl_raw_handles.config,
+				egl_raw_handles.context,
+			)?)?
+		};
+
 		let display: Display<WaylandState> = Display::new()?;
 		let display_handle = display.handle();
 
 		let (dmabuf_tx, dmabuf_rx) = mpsc::unbounded_channel();
-		let display = Arc::new(DisplayWrapper(Mutex::new(display), display_handle.clone()));
-		#[cfg(feature = "xwayland")]
-		let xwayland_state = xwayland::XWaylandState::create(&display_handle)?;
-		let wayland_state = WaylandState::new(display_handle, &buffer_manager.renderer, dmabuf_tx);
+
+		let wayland_state = WaylandState::new(display_handle.clone(), &renderer, dmabuf_tx);
+		let output = wayland_state.lock().output.clone();
 
 		let socket = ListeningSocket::bind_auto("wayland", 0..33)?;
 		let socket_name = socket
@@ -88,88 +98,112 @@ impl Wayland {
 		}
 		info!(socket_name, "Wayland active");
 
-		let join_handle = Wayland::start_loop(display.clone(), socket, wayland_state.clone())?;
+		let flush_notify = Arc::new(Notify::new());
+		let client_listener = task::new(
+			|| "Wayland client listener loop",
+			Wayland::client_listener_loop(display_handle, socket, wayland_state.clone()),
+		)?
+		.abort_handle();
+		let client_dispatcher = task::new(
+			|| "Wayland dispatch client loop",
+			Wayland::dispatch_client_loop(display, flush_notify.clone(), wayland_state),
+		)?
+		.abort_handle();
 
 		Ok(Wayland {
-			display,
-			socket_name,
-			join_handle,
+			flush_notify,
+			client_listener,
+			client_dispatcher,
+			renderer,
+			output,
 			dmabuf_rx,
-			wayland_state,
-			#[cfg(feature = "xwayland")]
-			xwayland_state,
 		})
 	}
 
-	fn start_loop(
-		display: Arc<DisplayWrapper>,
+	async fn client_listener_loop(
+		mut display_handle: DisplayHandle,
 		socket: ListeningSocket,
 		state: Arc<Mutex<WaylandState>>,
-	) -> Result<JoinHandle<Result<()>>> {
-		let listen_async =
-			AsyncUnixListener::from_std(unsafe { UnixListener::from_raw_fd(socket.as_raw_fd()) })?;
+	) -> Result<()> {
+		let async_fd = AsyncFd::new(socket.as_fd())?;
+		loop {
+			let mut guard = async_fd.readable().await?;
+			let Ok(Some(stream)) = socket.accept() else {
+				guard.clear_ready();
+				continue;
+			};
 
-		let dispatch_poll_fd = display.poll_fd()?;
-		let dispatch_poll_listener = AsyncFd::new(dispatch_poll_fd)?;
+			let stream = tokio::net::UnixStream::from_std(stream)?;
+			let pid = stream.peer_cred().ok().and_then(|c| c.pid());
 
-		let dh1 = display.handle();
-		let mut dh2 = dh1.clone();
+			// New client connected
+			let client_state = Arc::new(ClientState {
+				pid,
+				id: OnceLock::new(),
+				compositor_state: Default::default(),
+				seat: state.lock().seat.clone(),
+			});
+			let _client = display_handle.insert_client(stream.into_std()?, client_state.clone())?;
+		}
+	}
 
-		Ok(task::new(|| "wayland loop", async move {
-			let _socket = socket; // Keep the socket alive
-			loop {
-				tokio::select! {
-					acc = listen_async.accept() => { // New client connected
-						let (stream, _) = acc?;
-						let client_state = Arc::new(ClientState {
-							id: OnceCell::new(),
-							compositor_state: Default::default(),
-							display: Arc::downgrade(&display),
-							seat: SeatData::new(&dh1)
-						});
-						let client = dh2.insert_client(stream.into_std()?, client_state.clone())?;
-						let _ = client_state.seat.client.set(client.id());
-					}
-					e = dispatch_poll_listener.readable() => { // Dispatch
-						let mut guard = e?;
-						debug_span!("Dispatch wayland event").in_scope(|| -> Result<(), color_eyre::Report> {
-							display.dispatch_clients(&mut *state.lock())?;
-							display.flush_clients(None);
-							Ok(())
-						})?;
-						guard.clear_ready();
-					}
+	async fn dispatch_client_loop(
+		mut display: Display<WaylandState>,
+		flush_notify: Arc<Notify>,
+		state: Arc<Mutex<WaylandState>>,
+	) -> std::io::Result<()> {
+		loop {
+			let poll_fd = display.backend().poll_fd();
+			let async_fd = AsyncFd::new(poll_fd)?;
+			tokio::select! {
+				biased;
+				_ = async_fd.readable() => {
+					drop(async_fd);
+					let _span = debug_span!("Dispatch wayland event");
+					let _span = _span.enter();
+					let _ = display.dispatch_clients(&mut *state.lock());
+					let _ = display.flush_clients();
+				}
+				_ = flush_notify.notified() => {
+					drop(async_fd);
+					let _ = display.flush_clients();
+				},
+			}
+		}
+	}
+
+	#[instrument(level = "debug", name = "Wayland frame", skip(self))]
+	pub fn update(&mut self) {
+		while let Ok((dmabuf, notifier)) = self.dmabuf_rx.try_recv() {
+			if self.renderer.import_dmabuf(&dmabuf, None).is_err() {
+				if let Some(notifier) = notifier {
+					notifier.failed();
 				}
 			}
-		})?)
-	}
-
-	#[instrument(
-		level = "debug",
-		name = "Wayland frame",
-		skip(self, sk, buffer_manager)
-	)]
-	pub fn update(&mut self, sk: &impl StereoKitDraw, buffer_manager: &mut BufferManager) {
-		while let Ok(dmabuf) = self.dmabuf_rx.try_recv() {
-			let _ = buffer_manager.renderer.import_dmabuf(&dmabuf, None);
 		}
 		for core_surface in CORE_SURFACES.get_valid_contents() {
-			core_surface.process(sk, &mut buffer_manager.renderer);
+			core_surface.process(&mut self.renderer);
 		}
+		let _ = self.renderer.cleanup_texture_cache();
 
-		self.display.flush_clients(None);
+		self.flush_notify.notify_waiters();
 	}
 
-	pub fn frame_event(&self, sk: &impl StereoKitDraw) {
-		let output = self.wayland_state.lock().output.clone();
-
+	pub fn frame_event(&self) {
 		for core_surface in CORE_SURFACES.get_valid_contents() {
-			core_surface.frame(sk, output.clone());
+			core_surface.frame(self.output.clone());
+		}
+	}
+
+	pub fn make_context_current(&self) {
+		unsafe {
+			let _ = self.renderer.egl_context().make_current();
 		}
 	}
 }
 impl Drop for Wayland {
 	fn drop(&mut self) {
-		self.join_handle.abort();
+		self.client_listener.abort();
+		self.client_dispatcher.abort();
 	}
 }

src/wayland/seat.rs

@@ -1,471 +1,84 @@
-use super::{
-	state::{ClientState, WaylandState},
-	surface::CoreSurface,
-	SERIAL_COUNTER,
-};
+use super::{state::WaylandState, surface::CoreSurface, utils::WlSurfaceExt};
 use crate::{
 	core::task,
-	nodes::items::panel::{Backend, Geometry, PanelItem},
+	nodes::items::panel::{Backend, Geometry, KEYMAPS, PanelItem},
 };
-use color_eyre::eyre::{bail, eyre, Result};
 use mint::Vector2;
-use nanoid::nanoid;
-use once_cell::sync::OnceCell;
 use parking_lot::Mutex;
-use rand::{seq::IteratorRandom, thread_rng};
-use rustc_hash::{FxHashMap, FxHashSet};
+use rustc_hash::FxHashMap;
+use slotmap::KeyData;
 use smithay::{
-	input::keyboard::{KeymapFile, ModifiersState},
-	reexports::wayland_server::{
-		backend::{ClientId, GlobalId, ObjectId},
-		protocol::{
-			wl_keyboard::{self, KeyState, WlKeyboard},
-			wl_pointer::{self, Axis, ButtonState, WlPointer},
-			wl_seat::{self, Capability, WlSeat, EVT_NAME_SINCE},
-			wl_surface::WlSurface,
-			wl_touch::{self, WlTouch},
-		},
-		Client, DataInit, Dispatch, DisplayHandle, GlobalDispatch, New, Resource, Weak as WlWeak,
+	backend::input::{AxisRelativeDirection, ButtonState, KeyState},
+	delegate_seat,
+	input::{
+		Seat, SeatHandler,
+		keyboard::{FilterResult, LedState},
+		pointer::{AxisFrame, ButtonEvent, CursorImageStatus, CursorImageSurfaceData, MotionEvent},
+		touch::{self, DownEvent, UpEvent},
 	},
+	reexports::wayland_server::{Resource, Weak as WlWeak, protocol::wl_surface::WlSurface},
+	utils::SERIAL_COUNTER,
 	wayland::compositor,
 };
-use std::{
-	collections::VecDeque,
-	sync::Arc,
-	time::{Duration, Instant},
-};
+use std::sync::{Arc, Weak};
 use tokio::sync::watch;
-use tracing::{debug, warn};
-use xkbcommon::xkb::{self, ffi::XKB_KEYMAP_FORMAT_TEXT_V1, Keycode, Keymap};
+
+impl SeatHandler for WaylandState {
+	type PointerFocus = WlSurface;
+	type KeyboardFocus = WlSurface;
+	type TouchFocus = WlSurface;
+
+	fn seat_state(&mut self) -> &mut smithay::input::SeatState<Self> {
+		&mut self.seat_state
+	}
+	fn focus_changed(&mut self, _seat: &Seat<Self>, _focused: Option<&Self::KeyboardFocus>) {}
+	fn cursor_image(&mut self, _seat: &Seat<Self>, image: CursorImageStatus) {
+		self.seat.cursor_info_tx.send_modify(|c| match image {
+			CursorImageStatus::Hidden => c.surface = None,
+			CursorImageStatus::Surface(surface) => {
+				CoreSurface::add_to(&surface);
+				compositor::with_states(&surface, |data| {
+					if let Some(cursor_attributes) = data.data_map.get::<CursorImageSurfaceData>() {
+						let hotspot = cursor_attributes.lock().unwrap().hotspot;
+						c.hotspot_x = hotspot.x;
+						c.hotspot_y = hotspot.y;
+					}
+					if let Some(core_surface) = data.data_map.get::<Arc<CoreSurface>>() {
+						core_surface.set_material_offset(1);
+					}
+				});
+				c.surface = Some(surface.downgrade())
+			}
+			_ => (),
+		});
+	}
+	fn led_state_changed(&mut self, _seat: &Seat<Self>, _led_state: LedState) {}
+}
+delegate_seat!(WaylandState);
 
 pub fn handle_cursor<B: Backend>(
 	panel_item: &Arc<PanelItem<B>>,
-	mut cursor: watch::Receiver<Option<CursorInfo>>,
+	mut cursor: watch::Receiver<CursorInfo>,
 ) {
 	let panel_item_weak = Arc::downgrade(panel_item);
 	let _ = task::new(|| "cursor handler", async move {
 		while cursor.changed().await.is_ok() {
-			let Some(panel_item) = panel_item_weak.upgrade() else {continue};
+			let Some(panel_item) = panel_item_weak.upgrade() else {
+				continue;
+			};
 			let cursor_info = cursor.borrow();
-			panel_item.set_cursor(cursor_info.as_ref().and_then(CursorInfo::cursor_data));
+			panel_item.set_cursor(cursor_info.cursor_data());
 		}
 	});
 }
-
-pub struct KeyboardInfo {
-	keymap_string: String,
-	keymap: KeymapFile,
-	state: xkb::State,
-	mods: ModifiersState,
-	keys: FxHashSet<u32>,
-}
-impl KeyboardInfo {
-	pub fn new(keymap_string: String, keymap: &Keymap) -> Self {
-		KeyboardInfo {
-			keymap_string,
-			state: xkb::State::new(keymap),
-			keymap: KeymapFile::new(keymap),
-			mods: ModifiersState::default(),
-			keys: FxHashSet::default(),
-		}
-	}
-	pub fn process(&mut self, key: u32, pressed: bool, keyboard: &WlKeyboard) -> Result<usize> {
-		let xkb_key_state = if pressed {
-			xkb::KeyDirection::Down
-		} else {
-			xkb::KeyDirection::Up
-		};
-		let state_components = self.state.update_key(Keycode::new(key + 8), xkb_key_state);
-		if state_components != 0 {
-			self.mods.update_with(&self.state);
-			keyboard.modifiers(
-				0,
-				self.mods.serialized.depressed,
-				self.mods.serialized.latched,
-				self.mods.serialized.locked,
-				0,
-			);
-		}
-		// if pressed {
-		// 	println!("Key {key} is being pressed with {state_components} modifiers");
-		// } else {
-		// 	println!("Key {key} is being released with {state_components} modifiers");
-		// }
-
-		let wl_key_state = if pressed {
-			KeyState::Pressed
-		} else {
-			KeyState::Released
-		};
-		keyboard.key(SERIAL_COUNTER.inc(), 0, key, wl_key_state);
-		match wl_key_state {
-			KeyState::Pressed => {
-				self.keys.insert(key);
-			}
-			KeyState::Released => {
-				self.keys.remove(&key);
-			}
-			_ => unimplemented!(),
-		}
-		Ok(self.keys.len())
-	}
-}
-unsafe impl Send for KeyboardInfo {}
-
-#[derive(Debug, Clone, Copy)]
-pub enum PointerEvent {
-	Motion(Vector2<f32>),
-	Button {
-		button: u32,
-		state: u32,
-	},
-	Scroll {
-		axis_continuous: Option<Vector2<f32>>,
-		axis_discrete: Option<Vector2<f32>>,
-	},
-}
-#[derive(Debug, Clone)]
-pub enum KeyboardEvent {
-	Keymap,
-	Key { key: u32, state: bool },
-}
-
-const POINTER_EVENT_TIMEOUT: Duration = Duration::from_millis(50);
-struct SurfaceInfo {
-	wl_surface: WlWeak<WlSurface>,
-	cursor_sender: watch::Sender<Option<CursorInfo>>,
-	pointer_queue: VecDeque<PointerEvent>,
-	pointer_latest_event: Instant,
-	keyboard_queue: VecDeque<KeyboardEvent>,
-	keyboard_info: Option<KeyboardInfo>,
-}
-impl SurfaceInfo {
-	fn new(wl_surface: &WlSurface, cursor_sender: watch::Sender<Option<CursorInfo>>) -> Self {
-		SurfaceInfo {
-			wl_surface: wl_surface.downgrade(),
-			cursor_sender,
-			pointer_queue: VecDeque::new(),
-			pointer_latest_event: Instant::now(),
-			keyboard_queue: VecDeque::new(),
-			keyboard_info: None,
-		}
-	}
-	fn flush(&self) {
-		if let Some(client) = self.wl_surface.upgrade().ok().and_then(|s| s.client()) {
-			if let Some(client_data) = client.get_data::<ClientState>() {
-				client_data.flush();
-			}
-		}
-	}
-	fn handle_pointer_events(&mut self, pointer: &WlPointer, mut locked: bool) -> bool {
-		let Ok(focus) = self.wl_surface.upgrade() else { return false; };
-		let Some(core_surface) = CoreSurface::from_wl_surface(&focus) else { return false; };
-		let Some(focus_size) = core_surface.size() else { return false; };
-
-		if !self.pointer_queue.is_empty() {
-			self.pointer_latest_event = Instant::now();
-		}
-		while let Some(event) = self.pointer_queue.pop_front() {
-			match (locked, event) {
-				(false, PointerEvent::Motion(pos)) => {
-					pointer.enter(
-						SERIAL_COUNTER.inc(),
-						&focus,
-						(pos.x as f64).clamp(0.0, focus_size.x as f64),
-						(pos.y as f64).clamp(0.0, focus_size.y as f64),
-					);
-					locked = true;
-				}
-				(true, PointerEvent::Motion(pos)) => {
-					pointer.motion(
-						0,
-						(pos.x as f64).clamp(0.0, focus_size.x as f64),
-						(pos.y as f64).clamp(0.0, focus_size.y as f64),
-					);
-					if pointer.version() >= wl_pointer::EVT_FRAME_SINCE {
-						pointer.frame();
-					}
-				}
-				(true, PointerEvent::Button { button, state }) => {
-					pointer.button(
-						0,
-						0,
-						button,
-						match state {
-							0 => ButtonState::Released,
-							1 => ButtonState::Pressed,
-							_ => continue,
-						},
-					);
-					if pointer.version() >= wl_pointer::EVT_FRAME_SINCE {
-						pointer.frame();
-					}
-				}
-				(
-					true,
-					PointerEvent::Scroll {
-						axis_continuous,
-						axis_discrete,
-					},
-				) => {
-					if let Some(axis_continuous) = axis_continuous {
-						pointer.axis(0, Axis::HorizontalScroll, axis_continuous.x as f64);
-						pointer.axis(0, Axis::VerticalScroll, -axis_continuous.y as f64);
-					}
-					if pointer.version() >= wl_pointer::EVT_AXIS_DISCRETE_SINCE {
-						if let Some(axis_discrete) = axis_discrete {
-							pointer.axis_discrete(Axis::HorizontalScroll, axis_discrete.x as i32);
-							pointer.axis_discrete(Axis::VerticalScroll, -axis_discrete.y as i32);
-						}
-					}
-					if pointer.version() >= wl_pointer::EVT_AXIS_STOP_SINCE
-						&& axis_discrete.is_none()
-						&& axis_continuous.is_none()
-					{
-						pointer.axis_stop(0, Axis::HorizontalScroll);
-						pointer.axis_stop(0, Axis::VerticalScroll);
-					}
-					if pointer.version() >= wl_pointer::EVT_FRAME_SINCE {
-						pointer.frame();
-					}
-				}
-				(locked, event) => {
-					warn!(locked, ?event, "Invalid pointer event!");
-				}
-			}
-		}
-		if self.pointer_latest_event.elapsed() > POINTER_EVENT_TIMEOUT {
-			pointer.leave(SERIAL_COUNTER.inc(), &focus);
-			locked = false;
-		}
-		self.flush();
-
-		locked
-	}
-	fn handle_keyboard_events(&mut self, keyboard: &WlKeyboard, mut locked: bool) -> bool {
-		let Ok(focus) = self.wl_surface.upgrade() else { return false; };
-		let Some(info) = self.keyboard_info.as_mut() else { return true; };
-
-		if !locked {
-			keyboard.enter(0, &focus, vec![]);
-			if keyboard.version() >= wl_keyboard::EVT_REPEAT_INFO_SINCE {
-				keyboard.repeat_info(0, 0);
-			}
-			locked = info.keymap.send(keyboard).is_ok();
-		}
-		while let Some(event) = self.keyboard_queue.pop_front() {
-			debug!(locked, ?event, "Process keyboard event");
-			match (locked, event) {
-				(true, KeyboardEvent::Keymap) => {
-					let _ = info.keymap.send(keyboard);
-				}
-				(true, KeyboardEvent::Key { key, state }) => {
-					if let Ok(key_count) = info.process(key, state, keyboard) {
-						if key_count == 0 {
-							keyboard.leave(SERIAL_COUNTER.inc(), &focus);
-							return false;
-						}
-					}
-				}
-				(locked, event) => {
-					warn!(locked, ?event, "Invalid keyboard event!");
-				}
-			}
-		}
-		self.flush();
-		locked
-	}
-}
-
-pub struct SeatData {
-	pub client: OnceCell<ClientId>,
-	global_id: OnceCell<GlobalId>,
-	surfaces: Mutex<FxHashMap<ObjectId, SurfaceInfo>>,
-	pointer: OnceCell<(WlPointer, Mutex<ObjectId>)>,
-	keyboard: OnceCell<(WlKeyboard, Mutex<ObjectId>)>,
-	touch: OnceCell<WlTouch>,
-	touches: Mutex<FxHashMap<ObjectId, u32>>,
-}
-impl SeatData {
-	pub fn new(dh: &DisplayHandle) -> Arc<Self> {
-		let seat_data = Arc::new(SeatData {
-			client: OnceCell::new(),
-			global_id: OnceCell::new(),
-			surfaces: Mutex::new(FxHashMap::default()),
-			pointer: OnceCell::new(),
-			keyboard: OnceCell::new(),
-			touch: OnceCell::new(),
-			touches: Mutex::new(FxHashMap::default()),
-		});
-
-		let _ = seat_data
-			.global_id
-			.set(dh.create_global::<WaylandState, _, _>(7, seat_data.clone()));
-
-		seat_data
-	}
-
-	pub fn set_keymap(&self, keymap_str: String, surfaces: Vec<WlSurface>) -> Result<()> {
-		let context = xkb::Context::new(0);
-		let keymap =
-			Keymap::new_from_string(&context, keymap_str.clone(), XKB_KEYMAP_FORMAT_TEXT_V1, 0)
-				.ok_or_else(|| eyre!("Keymap is not valid"))?;
-		let mut panels = self.surfaces.lock();
-		let Some((_, focus)) = self.keyboard.get() else {bail!("Could not get keyboard")};
-		for surface in surfaces {
-			let Some(surface_info) = panels.get_mut(&surface.id()) else {continue};
-			if let Some(keyboard_info) = &mut surface_info.keyboard_info {
-				if &keyboard_info.keymap_string == &keymap_str {
-					continue;
-				}
-			}
-			surface_info
-				.keyboard_info
-				.replace(KeyboardInfo::new(keymap_str.clone(), &keymap));
-
-			if *focus.lock() == surface.id() {
-				surface_info.keyboard_queue.push_back(KeyboardEvent::Keymap);
-			}
-		}
-		Ok(())
-	}
-
-	pub fn pointer_event(&self, surface: &WlSurface, event: PointerEvent) {
-		let mut surfaces = self.surfaces.lock();
-		let Some(surface_info) = surfaces.get_mut(&surface.id()) else {return};
-		surface_info.pointer_queue.push_back(event);
-		drop(surfaces);
-		self.handle_pointer_events();
-	}
-	pub fn keyboard_event(&self, surface: &WlSurface, event: KeyboardEvent) {
-		let mut surfaces = self.surfaces.lock();
-		let Some(surface_info) = surfaces.get_mut(&surface.id()) else {return};
-		surface_info.keyboard_queue.push_back(event);
-		drop(surfaces);
-		self.handle_keyboard_events();
-	}
-
-	fn handle_pointer_events(&self) {
-		let mut surfaces = self.surfaces.lock();
-		let Some((pointer, pointer_focus)) = self.pointer.get() else {return};
-		let mut pointer_focus = pointer_focus.lock();
-
-		loop {
-			let locked = !pointer_focus.is_null();
-			// Pick a pointer to focus on if there is none
-			if pointer_focus.is_null() {
-				*pointer_focus = surfaces
-					.iter()
-					.filter(|(_k, v)| !v.pointer_queue.is_empty())
-					.map(|(k, _v)| k)
-					.choose(&mut thread_rng())
-					.cloned()
-					.unwrap_or(ObjectId::null());
-			}
-			if pointer_focus.is_null() {
-				// If there's still none, guess we're done with pointer events for the time being
-				break;
-			}
-			let Some(surface_info) = surfaces.get_mut(&pointer_focus) else {break};
-			if surface_info.handle_pointer_events(pointer, locked) {
-				// We haven't gotten to a point where we can switch the focus
-				break;
-			} else {
-				*pointer_focus = ObjectId::null();
-			}
-		}
-	}
-	fn handle_keyboard_events(&self) {
-		let mut surfaces = self.surfaces.lock();
-		let Some((keyboard, keyboard_focus)) = self.keyboard.get() else {return};
-		let mut keyboard_focus = keyboard_focus.lock();
-		loop {
-			let locked = !keyboard_focus.is_null();
-			// Pick a keyboard to focus on if there is none
-			if keyboard_focus.is_null() {
-				*keyboard_focus = surfaces
-					.iter()
-					.filter(|(_k, v)| v.keyboard_info.is_some())
-					.filter(|(_k, v)| !v.keyboard_queue.is_empty())
-					.map(|(k, _v)| k)
-					.choose(&mut thread_rng())
-					.cloned()
-					.unwrap_or(ObjectId::null());
-			}
-			// If there's still none, guess we're done with keyboard events for the time being
-			let Some(surface_info) = surfaces.get_mut(&keyboard_focus) else {break};
-			if surface_info.handle_keyboard_events(keyboard, locked) {
-				// We haven't gotten to a point where we can switch the focus
-				break;
-			} else {
-				*keyboard_focus = ObjectId::null();
-			}
-		}
-	}
-
-	pub fn new_surface(&self, surface: &WlSurface) -> watch::Receiver<Option<CursorInfo>> {
-		let (tx, rx) = watch::channel(None);
-		self.surfaces
-			.lock()
-			.insert(surface.id(), SurfaceInfo::new(surface, tx));
-
-		rx
-	}
-	pub fn drop_surface(&self, surface: &WlSurface) {
-		self.surfaces.lock().remove(&surface.id());
-		if let Some((_, pointer_focus)) = self.pointer.get() {
-			let mut pointer_focus = pointer_focus.lock();
-			if *pointer_focus == surface.id() {
-				*pointer_focus = ObjectId::null();
-			}
-		}
-		if let Some((_, keyboard_focus)) = self.keyboard.get() {
-			let mut keyboard_focus = keyboard_focus.lock();
-			if *keyboard_focus == surface.id() {
-				*keyboard_focus = ObjectId::null();
-			}
-		}
-		self.touches.lock().remove(&surface.id());
-	}
-
-	pub fn touch_down(&self, surface: &WlSurface, id: u32, position: Vector2<f32>) {
-		let Some(touch) = self.touch.get() else {return};
-		touch.down(
-			SERIAL_COUNTER.inc(),
-			0,
-			surface,
-			id as i32,
-			position.x as f64,
-			position.y as f64,
-		);
-		self.touches.lock().insert(surface.id(), id);
-	}
-	pub fn touch_move(&self, id: u32, position: Vector2<f32>) {
-		let Some(touch) = self.touch.get() else {return};
-		touch.motion(0, id as i32, position.x as f64, position.y as f64);
-	}
-	pub fn touch_up(&self, id: u32) {
-		let Some(touch) = self.touch.get() else {return};
-		touch.up(SERIAL_COUNTER.inc(), 0, id as i32);
-		let mut touches = self.touches.lock();
-		touches.retain(|_, tid| *tid != id);
-	}
-	pub fn reset_touches(&self) {
-		let Some(touch) = self.touch.get() else {return};
-		for (_, touch_id) in self.touches.lock().drain() {
-			touch.up(SERIAL_COUNTER.inc(), 0, touch_id as i32);
-		}
-	}
-}
-
 pub struct CursorInfo {
-	pub surface: WlWeak<WlSurface>,
+	pub surface: Option<WlWeak<WlSurface>>,
 	pub hotspot_x: i32,
 	pub hotspot_y: i32,
 }
 impl CursorInfo {
 	pub fn cursor_data(&self) -> Option<Geometry> {
-		let cursor_size = CoreSurface::from_wl_surface(&self.surface.upgrade().ok()?)?.size()?;
+		let cursor_size = self.surface.as_ref()?.upgrade().ok()?.get_size()?;
 		Some(Geometry {
 			origin: [self.hotspot_x, self.hotspot_y].into(),
 			size: cursor_size,
@@ -473,134 +86,228 @@ impl CursorInfo {
 	}
 }
 
-impl GlobalDispatch<WlSeat, Arc<SeatData>, WaylandState> for WaylandState {
-	fn bind(
-		_state: &mut WaylandState,
-		_handle: &DisplayHandle,
-		_client: &Client,
-		resource: New<WlSeat>,
-		data: &Arc<SeatData>,
-		data_init: &mut DataInit<'_, WaylandState>,
-	) {
-		let resource = data_init.init(resource, data.clone());
-
-		if resource.version() >= EVT_NAME_SINCE {
-			resource.name(nanoid!());
-		}
-
-		resource.capabilities(Capability::Pointer | Capability::Keyboard | Capability::Touch);
-	}
-
-	fn can_view(client: Client, data: &Arc<SeatData>) -> bool {
-		let Some(seat_client) = data.client.get().cloned() else {return false};
-		client.id() == seat_client
-	}
+pub struct SeatWrapper {
+	wayland_state: Weak<Mutex<WaylandState>>,
+	cursor_info_tx: watch::Sender<CursorInfo>,
+	pub cursor_info_rx: watch::Receiver<CursorInfo>,
+	seat: Seat<WaylandState>,
+	touches: Mutex<FxHashMap<u32, WlWeak<WlSurface>>>,
 }
-
-impl Dispatch<WlSeat, Arc<SeatData>, WaylandState> for WaylandState {
-	fn request(
-		_state: &mut WaylandState,
-		_client: &Client,
-		_resource: &WlSeat,
-		request: wl_seat::Request,
-		data: &Arc<SeatData>,
-		_dh: &DisplayHandle,
-		data_init: &mut DataInit<'_, WaylandState>,
-	) {
-		match request {
-			wl_seat::Request::GetPointer { id } => {
-				let pointer = data_init.init(id, data.clone());
-				let _ = data.pointer.set((pointer, Mutex::new(ObjectId::null())));
+impl SeatWrapper {
+	pub fn new(wayland_state: Weak<Mutex<WaylandState>>, seat: Seat<WaylandState>) -> Self {
+		let (cursor_info_tx, cursor_info_rx) = watch::channel(CursorInfo {
+			surface: None,
+			hotspot_x: 0,
+			hotspot_y: 0,
+		});
+		SeatWrapper {
+			wayland_state,
+			cursor_info_tx,
+			cursor_info_rx,
+			seat,
+			touches: Mutex::new(FxHashMap::default()),
+		}
+	}
+	pub fn unfocus_internal_state(&self, surface: &WlSurface) {
+		let Some(state) = self.wayland_state.upgrade() else {
+			return;
+		};
+		self.unfocus(surface, &mut state.lock());
+	}
+	pub fn unfocus(&self, surface: &WlSurface, state: &mut WaylandState) {
+		let pointer = self.seat.get_pointer().unwrap();
+		if pointer.current_focus() == Some(surface.clone()) {
+			pointer.motion(
+				state,
+				None,
+				&MotionEvent {
+					location: (0.0, 0.0).into(),
+					serial: SERIAL_COUNTER.next_serial(),
+					time: 0,
+				},
+			)
+		}
+		let keyboard = self.seat.get_keyboard().unwrap();
+		if keyboard.current_focus() == Some(surface.clone()) {
+			keyboard.set_focus(state, None, SERIAL_COUNTER.next_serial());
+		}
+		for (id, touch_surface) in self.touches.lock().iter() {
+			if touch_surface.id() == surface.id() {
+				self.touch_up(*id);
 			}
-			wl_seat::Request::GetKeyboard { id } => {
-				let keyboard = data_init.init(id, data.clone());
-				if keyboard.version() >= wl_keyboard::EVT_REPEAT_INFO_SINCE {
-					keyboard.repeat_info(0, 0);
-				}
-				let _ = data.keyboard.set((keyboard, Mutex::new(ObjectId::null())));
-			}
-			wl_seat::Request::GetTouch { id } => {
-				let _ = data.touch.set(data_init.init(id, data.clone()));
-			}
-			wl_seat::Request::Release => (),
-			_ => unreachable!(),
 		}
 	}
-}
 
-impl Dispatch<WlPointer, Arc<SeatData>, WaylandState> for WaylandState {
-	fn request(
-		_state: &mut WaylandState,
-		_client: &Client,
-		_resource: &WlPointer,
-		request: wl_pointer::Request,
-		seat_data: &Arc<SeatData>,
-		dh: &DisplayHandle,
-		_data_init: &mut DataInit<'_, WaylandState>,
+	pub fn pointer_motion(&self, surface: WlSurface, position: Vector2<f32>) {
+		let Some(state) = self.wayland_state.upgrade() else {
+			return;
+		};
+		let mut state = state.lock();
+		let Some(pointer) = self.seat.get_pointer() else {
+			return;
+		};
+		pointer.motion(
+			&mut state,
+			Some((surface, (0.0, 0.0).into())),
+			&MotionEvent {
+				location: (position.x as f64, position.y as f64).into(),
+				serial: SERIAL_COUNTER.next_serial(),
+				time: 0,
+			},
+		);
+		pointer.frame(&mut state);
+	}
+	pub fn pointer_button(&self, button: u32, pressed: bool) {
+		let Some(state) = self.wayland_state.upgrade() else {
+			return;
+		};
+		let mut state = state.lock();
+		let Some(pointer) = self.seat.get_pointer() else {
+			return;
+		};
+		pointer.button(
+			&mut state,
+			&ButtonEvent {
+				button,
+				state: if pressed {
+					ButtonState::Pressed
+				} else {
+					ButtonState::Released
+				},
+				serial: SERIAL_COUNTER.next_serial(),
+				time: 0,
+			},
+		);
+		pointer.frame(&mut state);
+	}
+	pub fn pointer_scroll(
+		&self,
+		scroll_distance: Option<Vector2<f32>>,
+		scroll_steps: Option<Vector2<f32>>,
 	) {
-		match request {
-			wl_pointer::Request::SetCursor {
-				serial: _,
-				surface,
-				hotspot_x,
-				hotspot_y,
-			} => {
-				if let Some(surface) = surface.as_ref() {
-					CoreSurface::add_to(dh.clone(), surface, || (), |_| ());
-					compositor::with_states(surface, |data| {
-						if let Some(core_surface) = data.data_map.get::<Arc<CoreSurface>>() {
-							core_surface.set_material_offset(1);
-						}
-					})
-				}
+		let Some(state) = self.wayland_state.upgrade() else {
+			return;
+		};
+		let mut state = state.lock();
+		let Some(pointer) = self.seat.get_pointer() else {
+			return;
+		};
+		pointer.axis(
+			&mut state,
+			AxisFrame {
+				source: None,
+				relative_direction: (
+					AxisRelativeDirection::Identical,
+					AxisRelativeDirection::Identical,
+				),
+				time: 0,
+				axis: scroll_distance
+					.map(|d| (d.x as f64, d.y as f64))
+					.unwrap_or((0.0, 0.0)),
+				v120: scroll_steps.map(|d| ((d.x * 120.0) as i32, (d.y * 120.0) as i32)),
+				stop: (false, false),
+			},
+		);
+		pointer.frame(&mut state);
+	}
 
-				let Some((_, focus)) = seat_data.pointer.get() else {return};
-				let focus = focus.lock();
-				let surfaces = seat_data.surfaces.lock();
-				let Some(surface_info) = surfaces.get(&focus) else {return};
-				let cursor_info = surface.map(|surface| CursorInfo {
-					surface: surface.downgrade(),
-					hotspot_x,
-					hotspot_y,
-				});
-				let _ = surface_info.cursor_sender.send_replace(cursor_info);
-			}
-			wl_pointer::Request::Release => (),
-			_ => unreachable!(),
-		}
-	}
-}
-
-impl Dispatch<WlKeyboard, Arc<SeatData>, WaylandState> for WaylandState {
-	fn request(
-		_state: &mut WaylandState,
-		_client: &Client,
-		_resource: &WlKeyboard,
-		request: <WlKeyboard as Resource>::Request,
-		_data: &Arc<SeatData>,
-		_dh: &DisplayHandle,
-		_data_init: &mut DataInit<'_, WaylandState>,
-	) {
-		match request {
-			wl_keyboard::Request::Release => (),
-			_ => unreachable!(),
-		}
-	}
-}
-
-impl Dispatch<WlTouch, Arc<SeatData>, WaylandState> for WaylandState {
-	fn request(
-		_state: &mut WaylandState,
-		_client: &Client,
-		_resource: &WlTouch,
-		request: <WlTouch as Resource>::Request,
-		_data: &Arc<SeatData>,
-		_dh: &DisplayHandle,
-		_data_init: &mut DataInit<'_, WaylandState>,
-	) {
-		match request {
-			wl_touch::Request::Release => (),
-			_ => unreachable!(),
+	pub fn keyboard_key(&self, surface: WlSurface, keymap_id: u64, key: u32, pressed: bool) {
+		let Some(state) = self.wayland_state.upgrade() else {
+			return;
+		};
+		let Some(keyboard) = self.seat.get_keyboard() else {
+			return;
+		};
+		let keymaps = KEYMAPS.lock();
+		let Some(keymap) = keymaps.get(KeyData::from_ffi(keymap_id).into()).cloned() else {
+			return;
+		};
+
+		keyboard.set_focus(
+			&mut state.lock(),
+			Some(surface),
+			SERIAL_COUNTER.next_serial(),
+		);
+		if keyboard
+			.set_keymap_from_string(&mut state.lock(), keymap)
+			.is_err()
+		{
+			return;
+		}
+		keyboard.input(
+			&mut state.lock(),
+			key.into(),
+			if pressed {
+				KeyState::Pressed
+			} else {
+				KeyState::Released
+			},
+			SERIAL_COUNTER.next_serial(),
+			0,
+			|_, _, _| FilterResult::Forward::<()>,
+		);
+	}
+
+	pub fn touch_down(&self, surface: WlSurface, id: u32, position: Vector2<f32>) {
+		let Some(state) = self.wayland_state.upgrade() else {
+			return;
+		};
+		let Some(touch) = self.seat.get_touch() else {
+			return;
+		};
+		touch.down(
+			&mut state.lock(),
+			Some((surface, (0.0, 0.0).into())),
+			&DownEvent {
+				slot: Some(id).into(),
+				location: (position.x as f64, position.y as f64).into(),
+				serial: SERIAL_COUNTER.next_serial(),
+				time: 0,
+			},
+		);
+		touch.frame(&mut state.lock());
+	}
+	pub fn touch_move(&self, id: u32, position: Vector2<f32>) {
+		let Some(state) = self.wayland_state.upgrade() else {
+			return;
+		};
+		let Some(surface) = self.touches.lock().get(&id).and_then(|c| c.upgrade().ok()) else {
+			return;
+		};
+		let Some(touch) = self.seat.get_touch() else {
+			return;
+		};
+		touch.motion(
+			&mut state.lock(),
+			Some((surface, (0.0, 0.0).into())),
+			&touch::MotionEvent {
+				slot: Some(id).into(),
+				location: (position.x as f64, position.y as f64).into(),
+				time: 0,
+			},
+		);
+		touch.frame(&mut state.lock());
+	}
+	pub fn touch_up(&self, id: u32) {
+		let Some(state) = self.wayland_state.upgrade() else {
+			return;
+		};
+		let Some(touch) = self.seat.get_touch() else {
+			return;
+		};
+		touch.up(
+			&mut state.lock(),
+			&UpEvent {
+				slot: Some(id).into(),
+				serial: SERIAL_COUNTER.next_serial(),
+				time: 0,
+			},
+		);
+		touch.frame(&mut state.lock());
+	}
+	pub fn reset_input(&self) {
+		for id in self.touches.lock().keys() {
+			self.touch_up(*id)
 		}
 	}
 }

src/wayland/state.rs

@@ -1,20 +1,29 @@
-use crate::wayland::seat::SeatData;
-use once_cell::sync::OnceCell;
+use super::seat::SeatWrapper;
+use crate::wayland::drm::wl_drm::WlDrm;
 use parking_lot::Mutex;
 use smithay::{
-	backend::{allocator::dmabuf::Dmabuf, egl::EGLDevice, renderer::gles::GlesRenderer},
-	delegate_dmabuf, delegate_output, delegate_shm,
+	backend::{
+		allocator::{Fourcc, dmabuf::Dmabuf},
+		egl::EGLDevice,
+		renderer::gles::GlesRenderer,
+	},
+	delegate_dmabuf, delegate_output, delegate_shm, delegate_viewporter,
+	desktop::PopupManager,
+	input::{SeatState, keyboard::XkbConfig},
 	output::{Mode, Output, Scale, Subpixel},
 	reexports::{
 		wayland_protocols::xdg::{
 			decoration::zv1::server::zxdg_decoration_manager_v1::ZxdgDecorationManagerV1,
-			shell::server::xdg_wm_base::XdgWmBase,
+			shell::server::xdg_toplevel::WmCapabilities,
 		},
 		wayland_protocols_misc::server_decoration::server::org_kde_kwin_server_decoration_manager::Mode as DecorationMode,
 		wayland_server::{
-			backend::{ClientData, ClientId, DisconnectReason},
-			protocol::{wl_buffer::WlBuffer, wl_data_device_manager::WlDataDeviceManager},
 			DisplayHandle,
+			backend::{ClientData, ClientId, DisconnectReason},
+			protocol::{
+				wl_buffer::WlBuffer, wl_data_device_manager::WlDataDeviceManager,
+				wl_output::WlOutput,
+			},
 		},
 	},
 	utils::{Size, Transform},
@@ -23,29 +32,25 @@ use smithay::{
 		compositor::{CompositorClientState, CompositorState},
 		dmabuf::{
 			self, DmabufFeedback, DmabufFeedbackBuilder, DmabufGlobal, DmabufHandler, DmabufState,
-			ImportError,
 		},
-		shell::kde::decoration::KdeDecorationState,
+		output::OutputHandler,
+		shell::{
+			kde::decoration::KdeDecorationState,
+			xdg::{WmCapabilitySet, XdgShellState},
+		},
 		shm::{ShmHandler, ShmState},
+		viewporter::ViewporterState,
 	},
 };
-use std::sync::{Arc, Weak};
+use std::sync::{Arc, OnceLock};
 use tokio::sync::mpsc::UnboundedSender;
 use tracing::{info, warn};
 
-use super::DisplayWrapper;
-
 pub struct ClientState {
-	pub id: OnceCell<ClientId>,
+	pub pid: Option<i32>,
+	pub id: OnceLock<ClientId>,
 	pub compositor_state: CompositorClientState,
-	pub display: Weak<DisplayWrapper>,
-	pub seat: Arc<SeatData>,
-}
-impl ClientState {
-	pub fn flush(&self) {
-		let Some(display) = self.display.upgrade() else {return};
-		let _ = display.flush_clients(self.id.get().cloned());
-	}
+	pub seat: Arc<SeatWrapper>,
 }
 impl ClientData for ClientState {
 	fn initialized(&self, client_id: ClientId) {
@@ -62,15 +67,18 @@ impl ClientData for ClientState {
 }
 
 pub struct WaylandState {
-	pub weak_ref: Weak<Mutex<WaylandState>>,
-	pub display_handle: DisplayHandle,
-
 	pub compositor_state: CompositorState,
 	// pub xdg_activation_state: XdgActivationState,
 	pub kde_decoration_state: KdeDecorationState,
 	pub shm_state: ShmState,
 	dmabuf_state: (DmabufState, DmabufGlobal, Option<DmabufFeedback>),
-	dmabuf_tx: UnboundedSender<Dmabuf>,
+	pub _viewporter_state: ViewporterState,
+	pub drm_formats: Vec<Fourcc>,
+	pub dmabuf_tx: UnboundedSender<(Dmabuf, Option<dmabuf::ImportNotifier>)>,
+	pub seat_state: SeatState<Self>,
+	pub seat: Arc<SeatWrapper>,
+	pub xdg_shell: XdgShellState,
+	pub popup_manager: PopupManager,
 	pub output: Output,
 }
 
@@ -78,7 +86,7 @@ impl WaylandState {
 	pub fn new(
 		display_handle: DisplayHandle,
 		renderer: &GlesRenderer,
-		dmabuf_tx: UnboundedSender<Dmabuf>,
+		dmabuf_tx: UnboundedSender<(Dmabuf, Option<dmabuf::ImportNotifier>)>,
 	) -> Arc<Mutex<Self>> {
 		let compositor_state = CompositorState::new::<Self>(&display_handle);
 		// let xdg_activation_state = XdgActivationState::new::<Self, _>(&display_handle);
@@ -87,13 +95,14 @@ impl WaylandState {
 		let shm_state = ShmState::new::<Self>(&display_handle, vec![]);
 		let render_node = EGLDevice::device_for_display(renderer.egl_context().display())
 			.and_then(|device| device.try_get_render_node());
-
 		let dmabuf_formats = renderer
 			.egl_context()
 			.dmabuf_render_formats()
 			.iter()
 			.cloned()
 			.collect::<Vec<_>>();
+		let drm_formats = dmabuf_formats.iter().map(|f| f.code).collect();
+
 		let dmabuf_default_feedback = match render_node {
 			Ok(Some(node)) => DmabufFeedbackBuilder::new(node.dev_id(), dmabuf_formats.clone())
 				.build()
@@ -123,6 +132,12 @@ impl WaylandState {
 			(dmabuf_state, dmabuf_global, None)
 		};
 
+		let mut seat_state = SeatState::new();
+		let mut seat = seat_state.new_wl_seat(&display_handle, "seat0");
+		seat.add_pointer();
+		seat.add_keyboard(XkbConfig::default(), 200, 25).unwrap();
+		seat.add_touch();
+
 		let output = Output::new(
 			"1x".to_owned(),
 			smithay::output::PhysicalProperties {
@@ -134,7 +149,7 @@ impl WaylandState {
 		);
 		let _output_global = output.create_global::<Self>(&display_handle);
 		let mode = Mode {
-			size: (2048, 2048).into(),
+			size: (1024, 1024).into(),
 			refresh: 60000,
 		};
 		output.change_current_state(
@@ -144,24 +159,37 @@ impl WaylandState {
 			None,
 		);
 		output.set_preferred(mode);
+
+		let mut xdg_shell = XdgShellState::new::<Self>(&display_handle);
+		let _viewporter_state = ViewporterState::new::<Self>(&display_handle);
+		let popup_manager = PopupManager::default();
+		let mut capabilities = WmCapabilitySet::default();
+		capabilities.set(WmCapabilities::Maximize);
+		capabilities.set(WmCapabilities::Fullscreen);
+		capabilities.unset(WmCapabilities::Minimize);
+		capabilities.unset(WmCapabilities::WindowMenu);
+		xdg_shell.replace_capabilities(capabilities);
 		display_handle.create_global::<Self, WlDataDeviceManager, _>(3, ());
-		display_handle.create_global::<Self, XdgWmBase, _>(5, ());
 		display_handle.create_global::<Self, ZxdgDecorationManagerV1, _>(1, ());
+		display_handle.create_global::<Self, WlDrm, _>(2, ());
 
 		info!("Init Wayland compositor");
 
 		Arc::new_cyclic(|weak| {
 			Mutex::new(WaylandState {
-				weak_ref: weak.clone(),
-				display_handle,
-
 				compositor_state,
 				// xdg_activation_state,
 				kde_decoration_state,
 				shm_state,
+				drm_formats,
 				dmabuf_state,
 				dmabuf_tx,
+				seat_state,
+				seat: Arc::new(SeatWrapper::new(weak.clone(), seat)),
+				xdg_shell,
+				popup_manager,
 				output,
+				_viewporter_state,
 			})
 		})
 	}
@@ -188,10 +216,15 @@ impl DmabufHandler for WaylandState {
 		&mut self,
 		_global: &DmabufGlobal,
 		dmabuf: Dmabuf,
-	) -> Result<(), dmabuf::ImportError> {
-		self.dmabuf_tx.send(dmabuf).map_err(|_| ImportError::Failed)
+		notifier: dmabuf::ImportNotifier,
+	) {
+		self.dmabuf_tx.send((dmabuf, Some(notifier))).unwrap();
 	}
 }
+impl OutputHandler for WaylandState {
+	fn output_bound(&mut self, _output: Output, _wl_output: WlOutput) {}
+}
 delegate_dmabuf!(WaylandState);
 delegate_shm!(WaylandState);
 delegate_output!(WaylandState);
+delegate_viewporter!(WaylandState);

src/wayland/surface.rs

@@ -1,34 +1,42 @@
-use super::state::WaylandState;
+use super::utils::WlSurfaceExt;
 use crate::{
 	core::{delta::Delta, destroy_queue, registry::Registry},
-	nodes::drawable::{model::ModelPart, shaders::PANEL_SHADER_BYTES},
+	nodes::{
+		drawable::{
+			model::{MaterialWrapper, ModelPart},
+			shaders::PANEL_SHADER_BYTES,
+		},
+		items::camera::TexWrapper,
+	},
 };
-use mint::Vector2;
-use once_cell::sync::OnceCell;
 use parking_lot::Mutex;
 use send_wrapper::SendWrapper;
 use smithay::{
 	backend::renderer::{
-		gles::{GlesRenderer, GlesTexture},
-		utils::{import_surface_tree, on_commit_buffer_handler, RendererSurfaceStateUserData},
 		Renderer, Texture,
+		gles::{GlesRenderer, GlesTexture},
+		utils::{RendererSurfaceStateUserData, import_surface_tree},
 	},
 	desktop::utils::send_frames_surface_tree,
 	output::Output,
-	reexports::wayland_server::{self, protocol::wl_surface::WlSurface, DisplayHandle, Resource},
-	wayland::compositor::{self, SurfaceData},
+	reexports::wayland_server::{self, Resource, protocol::wl_surface::WlSurface},
 };
-use std::{cell::RefCell, ffi::c_void, sync::Arc, time::Duration};
-use stereokit::{
-	Material, Shader, StereoKitDraw, Tex, TextureAddress, TextureFormat, TextureSample,
-	TextureType, Transparency,
+use std::{
+	ffi::c_void,
+	sync::{Arc, OnceLock},
+	time::Duration,
+};
+use stereokit_rust::{
+	material::{Material, Transparency},
+	shader::Shader,
+	tex::{Tex, TexAddress, TexFormat, TexSample, TexType},
+	util::Time,
 };
 
 pub static CORE_SURFACES: Registry<CoreSurface> = Registry::new();
 
 pub struct CoreSurfaceData {
 	wl_tex: Option<SendWrapper<GlesTexture>>,
-	pub size: Vector2<u32>,
 }
 impl Drop for CoreSurfaceData {
 	fn drop(&mut self) {
@@ -37,139 +45,122 @@ impl Drop for CoreSurfaceData {
 }
 
 pub struct CoreSurface {
-	pub dh: DisplayHandle,
 	pub weak_surface: wayland_server::Weak<WlSurface>,
 	mapped_data: Mutex<Option<CoreSurfaceData>>,
-	sk_tex: OnceCell<Tex>,
-	sk_mat: OnceCell<Arc<Material>>,
+	sk_tex: OnceLock<Mutex<TexWrapper>>,
+	sk_mat: OnceLock<Mutex<MaterialWrapper>>,
 	material_offset: Mutex<Delta<u32>>,
-	on_mapped: Box<dyn Fn() + Send + Sync>,
-	on_commit: Box<dyn Fn(u32) + Send + Sync>,
 	pub pending_material_applications: Registry<ModelPart>,
 }
 
 impl CoreSurface {
-	pub fn add_to(
-		dh: DisplayHandle,
-		surface: &WlSurface,
-		on_mapped: impl Fn() + Send + Sync + 'static,
-		on_commit: impl Fn(u32) + Send + Sync + 'static,
-	) {
-		compositor::with_states(surface, |data| {
-			data.data_map.insert_if_missing_threadsafe(|| {
-				CORE_SURFACES.add(CoreSurface {
-					dh,
-					weak_surface: surface.downgrade(),
-					mapped_data: Mutex::new(None),
-					sk_tex: OnceCell::new(),
-					sk_mat: OnceCell::new(),
-					material_offset: Mutex::new(Delta::new(0)),
-					on_mapped: Box::new(on_mapped) as Box<dyn Fn() + Send + Sync>,
-					on_commit: Box::new(on_commit) as Box<dyn Fn(u32) + Send + Sync>,
-					pending_material_applications: Registry::new(),
-				})
-			});
+	pub fn add_to(surface: &WlSurface) {
+		let core_surface = CORE_SURFACES.add(CoreSurface {
+			weak_surface: surface.downgrade(),
+			mapped_data: Mutex::new(None),
+			sk_tex: OnceLock::new(),
+			sk_mat: OnceLock::new(),
+			material_offset: Mutex::new(Delta::new(0)),
+			pending_material_applications: Registry::new(),
 		});
-	}
-
-	pub fn commit(&self, count: u32) {
-		(self.on_commit)(count);
+		surface.insert_data(core_surface);
 	}
 
 	pub fn from_wl_surface(surf: &WlSurface) -> Option<Arc<CoreSurface>> {
-		compositor::with_states(surf, |data| {
-			data.data_map.get::<Arc<CoreSurface>>().cloned()
-		})
+		surf.get_data()
 	}
 
-	pub fn process(&self, sk: &impl StereoKitDraw, renderer: &mut GlesRenderer) {
-		let Some(wl_surface) = self.wl_surface() else {return};
+	pub fn process(&self, renderer: &mut GlesRenderer) {
+		let Some(wl_surface) = self.wl_surface() else {
+			return;
+		};
 
-		let sk_tex = self
-			.sk_tex
-			.get_or_init(|| sk.tex_create(TextureType::IMAGE_NO_MIPS, TextureFormat::RGBA32));
+		let sk_tex = self.sk_tex.get_or_init(|| {
+			Mutex::new(TexWrapper(Tex::new(
+				TexType::ImageNomips,
+				TexFormat::RGBA32Linear,
+				nanoid::nanoid!(),
+			)))
+		});
 		self.sk_mat.get_or_init(|| {
-			let shader = sk.shader_create_mem(&PANEL_SHADER_BYTES);
+			let shader = Shader::from_memory(PANEL_SHADER_BYTES).unwrap();
 			// let _ = renderer.with_context(|c| unsafe {
 			// 	shader_inject(c, &mut shader, SIMULA_VERT_STR, SIMULA_FRAG_STR)
 			// });
 
-			let mat = sk.material_create(shader.as_ref().unwrap_or(Shader::UI.as_ref()));
-			sk.material_set_texture(&mat, "diffuse", sk_tex.as_ref());
-			sk.material_set_transparency(&mat, Transparency::Blend);
-			Arc::new(mat)
+			let mut mat = Material::new(shader, None);
+			mat.diffuse_tex(&sk_tex.lock().0);
+			mat.transparency(Transparency::Blend);
+			Mutex::new(MaterialWrapper(mat))
 		});
 
-		// Let smithay handle buffer management (has to be done here as RendererSurfaceStates is not thread safe)
-		on_commit_buffer_handler::<WaylandState>(&wl_surface);
 		// Import all surface buffers into textures
-		if import_surface_tree(renderer, &wl_surface).is_err() {
+		if let Err(err) = import_surface_tree(renderer, &wl_surface) {
+			tracing::error!("Failed to import surface tree for surface {}: {}", wl_surface.id(), err);
 			return;
 		}
 
-		let mapped = compositor::with_states(&wl_surface, |data| {
-			data.data_map
-				.get::<RendererSurfaceStateUserData>()
-				.map(|surface_states| surface_states.borrow().buffer().is_some())
-				.unwrap_or(false)
-		});
-
-		if !mapped {
-			return;
-		}
-
-		let mut mapped_data = self.mapped_data.lock();
-		let just_mapped = mapped_data.is_none();
-		self.with_states(|data| {
-			let Some(renderer_surface_state) = data
-				.data_map
-				.get::<RendererSurfaceStateUserData>()
-				.map(RefCell::borrow) else {return};
-			let Some(smithay_tex) = renderer_surface_state
-				.texture::<GlesRenderer>(renderer.id())
-				.cloned() else {return};
-
-			let Some(sk_tex) = self.sk_tex.get() else {return};
-			let Some(sk_mat) = self.sk_mat.get() else {return};
-			unsafe {
-				sk.tex_set_surface(
-					sk_tex.as_ref(),
-					smithay_tex.tex_id() as usize as *mut c_void,
-					TextureType::IMAGE_NO_MIPS,
-					smithay::backend::renderer::gles::ffi::RGBA8.into(),
-					smithay_tex.width() as i32,
-					smithay_tex.height() as i32,
-					1,
-					false,
-				);
-				sk.tex_set_sample(sk_tex.as_ref(), TextureSample::Point);
-				sk.tex_set_address(sk_tex.as_ref(), TextureAddress::Clamp);
-			}
-			if let Some(material_offset) = self.material_offset.lock().delta() {
-				sk.material_set_queue_offset(sk_mat.as_ref().as_ref(), *material_offset as i32);
-			}
-
-			let Some(surface_size) = renderer_surface_state.surface_size() else {return};
-			let new_mapped_data = CoreSurfaceData {
-				size: Vector2::from([surface_size.w as u32, surface_size.h as u32]),
-				wl_tex: Some(SendWrapper::new(smithay_tex)),
-			};
-			*mapped_data = Some(new_mapped_data);
-		});
-		drop(mapped_data);
-		if just_mapped {
-			(self.on_mapped)();
-		}
+		self.update_textures(renderer);
 		self.apply_surface_materials();
 	}
 
-	pub fn frame(&self, sk: &impl StereoKitDraw, output: Output) {
-		let Some(wl_surface) = self.wl_surface() else {return};
+	pub fn update_textures(&self, renderer: &mut GlesRenderer) {
+		let Some(wl_surface) = self.wl_surface() else {
+			return;
+		};
+
+		let Some(smithay_tex) = wl_surface
+			.get_data_raw::<RendererSurfaceStateUserData, _, _>(|surface_states| {
+				let locked = surface_states.lock().unwrap();
+				locked.texture::<GlesRenderer>(renderer.id()).cloned()
+			})
+			.flatten()
+		else {
+			return;
+		};
+
+		let Some(sk_tex) = self.sk_tex.get() else {
+			tracing::error!("No sk_tex found for surface");
+			return;
+		};
+		let Some(sk_mat) = self.sk_mat.get() else {
+			tracing::error!("No sk_mat found for surface");
+			return;
+		};
+		sk_tex
+			.lock()
+			.0
+			.set_native_surface(
+				smithay_tex.tex_id() as usize as *mut c_void,
+				TexType::ImageNomips,
+				smithay::backend::renderer::gles::ffi::RGBA8.into(),
+				smithay_tex.width() as i32,
+				smithay_tex.height() as i32,
+				1,
+				false,
+			)
+			.sample_mode(TexSample::Point)
+			.address_mode(TexAddress::Clamp);
+
+		if let Some(material_offset) = self.material_offset.lock().delta() {
+			sk_mat.lock().0.queue_offset(*material_offset as i32);
+		}
+
+		let new_mapped_data = CoreSurfaceData {
+			wl_tex: Some(SendWrapper::new(smithay_tex)),
+		};
+		*self.mapped_data.lock() = Some(new_mapped_data);
+	}
+
+	pub fn frame(&self, output: Output) {
+		let Some(wl_surface) = self.wl_surface() else {
+			return;
+		};
 
 		send_frames_surface_tree(
 			&wl_surface,
 			&output,
-			Duration::from_secs_f64(sk.time_get()),
+			Duration::from_secs_f64(Time::get_total_unscaled()),
 			None,
 			|_, _| Some(output.clone()),
 		);
@@ -185,8 +176,9 @@ impl CoreSurface {
 
 	fn apply_surface_materials(&self) {
 		if let Some(sk_mat) = self.sk_mat.get() {
+			let sk_mat = sk_mat.lock();
 			for model_node in self.pending_material_applications.get_valid_contents() {
-				model_node.replace_material(sk_mat.clone());
+				model_node.replace_material_now(&sk_mat.0);
 			}
 			self.pending_material_applications.clear();
 		}
@@ -195,18 +187,6 @@ impl CoreSurface {
 	pub fn wl_surface(&self) -> Option<WlSurface> {
 		self.weak_surface.upgrade().ok()
 	}
-
-	pub fn with_states<F, T>(&self, f: F) -> Option<T>
-	where
-		F: FnOnce(&SurfaceData) -> T,
-	{
-		self.wl_surface()
-			.map(|wl_surface| compositor::with_states(&wl_surface, f))
-	}
-
-	pub fn size(&self) -> Option<Vector2<u32>> {
-		self.mapped_data.lock().as_ref().map(|d| d.size)
-	}
 }
 impl Drop for CoreSurface {
 	fn drop(&mut self) {

src/wayland/utils.rs

@@ -0,0 +1,121 @@
+use mint::Vector2;
+use parking_lot::Mutex;
+use smithay::{
+	backend::renderer::utils::RendererSurfaceStateUserData,
+	reexports::wayland_server::protocol::wl_surface::WlSurface,
+	wayland::{
+		compositor,
+		shell::xdg::{SurfaceCachedState, XdgToplevelSurfaceData},
+	},
+};
+
+use crate::nodes::items::panel::{ChildInfo, Geometry, ToplevelInfo};
+
+use super::xdg_shell::surface_panel_item;
+pub trait WlSurfaceExt {
+	fn insert_data<T: Send + Sync + 'static>(&self, data: T) -> bool;
+	fn get_data<T: Send + Sync + Clone + 'static>(&self) -> Option<T>;
+	fn get_data_raw<T: Send + Sync + 'static, O, F: FnOnce(&T) -> O>(&self, f: F) -> Option<O>;
+	fn get_current_surface_state(&self) -> SurfaceCachedState;
+	fn get_pending_surface_state(&self) -> SurfaceCachedState;
+	fn get_size(&self) -> Option<Vector2<u32>>;
+	fn get_geometry(&self) -> Option<Geometry>;
+}
+impl WlSurfaceExt for WlSurface {
+	fn insert_data<T: Send + Sync + 'static>(&self, data: T) -> bool {
+		compositor::with_states(self, |d| {
+			d.data_map.insert_if_missing_threadsafe(move || data)
+		})
+	}
+	fn get_data<T: Send + Sync + Clone + 'static>(&self) -> Option<T> {
+		compositor::with_states(self, |d| d.data_map.get::<T>().cloned())
+	}
+	fn get_data_raw<T: Send + Sync + 'static, O, F: FnOnce(&T) -> O>(&self, f: F) -> Option<O> {
+		compositor::with_states(self, |d| Some((f)(d.data_map.get::<T>()?)))
+	}
+	fn get_current_surface_state(&self) -> SurfaceCachedState {
+		compositor::with_states(self, |states| {
+			*states.cached_state.get::<SurfaceCachedState>().current()
+		})
+	}
+	fn get_pending_surface_state(&self) -> SurfaceCachedState {
+		compositor::with_states(self, |states| {
+			*states.cached_state.get::<SurfaceCachedState>().pending()
+		})
+	}
+	fn get_size(&self) -> Option<Vector2<u32>> {
+		self.get_data_raw::<RendererSurfaceStateUserData, _, _>(|surface_states| {
+			surface_states.lock().unwrap().surface_size()
+		})
+		.flatten()
+		.map(|size| Vector2::from([size.w as u32, size.h as u32]))
+	}
+	fn get_geometry(&self) -> Option<Geometry> {
+		self.get_current_surface_state().geometry.map(|r| r.into())
+	}
+}
+
+pub trait ToplevelInfoExt {
+	fn get_toplevel_info(&self) -> Option<ToplevelInfo>;
+	fn with_toplevel_info<O, F: FnOnce(&mut ToplevelInfo) -> O>(&self, f: F) -> Option<O>;
+
+	fn get_parent(&self) -> Option<u64>;
+	fn get_app_id(&self) -> Option<String>;
+	fn get_title(&self) -> Option<String>;
+	fn min_size(&self) -> Option<Vector2<u32>>;
+	fn max_size(&self) -> Option<Vector2<u32>>;
+}
+impl ToplevelInfoExt for WlSurface {
+	fn get_toplevel_info(&self) -> Option<ToplevelInfo> {
+		self.get_data_raw::<Mutex<ToplevelInfo>, _, _>(|c| c.lock().clone())
+	}
+	fn with_toplevel_info<O, F: FnOnce(&mut ToplevelInfo) -> O>(&self, f: F) -> Option<O> {
+		self.get_data_raw::<Mutex<ToplevelInfo>, _, _>(|r| (f)(&mut r.lock()))
+	}
+
+	fn get_parent(&self) -> Option<u64> {
+		self.get_data_raw::<XdgToplevelSurfaceData, _, _>(|d| d.lock().unwrap().parent.clone())
+			.flatten()
+			.and_then(|p| surface_panel_item(&p))
+			.and_then(|p| p.node.upgrade())
+			.map(|p| p.get_id())
+	}
+	fn get_app_id(&self) -> Option<String> {
+		self.get_data_raw::<XdgToplevelSurfaceData, _, _>(|d| d.lock().ok()?.app_id.clone())
+			.flatten()
+	}
+	fn get_title(&self) -> Option<String> {
+		self.get_data_raw::<XdgToplevelSurfaceData, _, _>(|d| d.lock().ok()?.title.clone())
+			.flatten()
+	}
+	fn min_size(&self) -> Option<Vector2<u32>> {
+		let state = self.get_pending_surface_state();
+		let size = state.min_size;
+		if size.w == 0 && size.h == 0 {
+			None
+		} else {
+			Some(Vector2::from([size.w as u32, size.h as u32]))
+		}
+	}
+	fn max_size(&self) -> Option<Vector2<u32>> {
+		let state = self.get_pending_surface_state();
+		let size = state.max_size;
+		if size.w == 0 && size.h == 0 {
+			None
+		} else {
+			Some(Vector2::from([size.w as u32, size.h as u32]))
+		}
+	}
+}
+pub trait ChildInfoExt {
+	fn get_child_info(&self) -> Option<ChildInfo>;
+	fn with_child_info<O, F: FnOnce(&mut ChildInfo) -> O>(&self, f: F) -> Option<O>;
+}
+impl ChildInfoExt for WlSurface {
+	fn get_child_info(&self) -> Option<ChildInfo> {
+		self.get_data_raw::<Mutex<ChildInfo>, _, _>(|c| c.lock().clone())
+	}
+	fn with_child_info<O, F: FnOnce(&mut ChildInfo) -> O>(&self, f: F) -> Option<O> {
+		self.get_data_raw::<Mutex<ChildInfo>, _, _>(|r| (f)(&mut r.lock()))
+	}
+}

src/wayland/wayland-drm.xml

@@ -0,0 +1,189 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="drm">
+
+    <copyright>
+        Copyright © 2008-2011 Kristian Høgsberg
+        Copyright © 2010-2011 Intel Corporation
+
+        Permission to use, copy, modify, distribute, and sell this
+        software and its documentation for any purpose is hereby granted
+        without fee, provided that\n the above copyright notice appear in
+        all copies and that both that copyright notice and this permission
+        notice appear in supporting documentation, and that the name of
+        the copyright holders not be used in advertising or publicity
+        pertaining to distribution of the software without specific,
+        written prior permission. The copyright holders make no
+        representations about the suitability of this software for any
+        purpose. It is provided "as is" without express or implied
+        warranty.
+
+        THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+        SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+        FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+        SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+        WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+        AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+        ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+        THIS SOFTWARE.
+    </copyright>
+
+    <!-- drm support. This object is created by the server and published
+       using the display's global event. -->
+    <interface name="wl_drm" version="2">
+        <enum name="error">
+            <entry name="authenticate_fail" value="0" />
+            <entry name="invalid_format" value="1" />
+            <entry name="invalid_name" value="2" />
+        </enum>
+
+        <enum name="format">
+            <!-- The drm format codes match the #defines in drm_fourcc.h.
+           The formats actually supported by the compositor will be
+           reported by the format event. New codes must not be added,
+           unless directly taken from drm_fourcc.h. -->
+            <entry name="c8" value="0x20203843" />
+            <entry name="rgb332" value="0x38424752" />
+            <entry name="bgr233" value="0x38524742" />
+            <entry name="xrgb4444" value="0x32315258" />
+            <entry name="xbgr4444" value="0x32314258" />
+            <entry name="rgbx4444" value="0x32315852" />
+            <entry name="bgrx4444" value="0x32315842" />
+            <entry name="argb4444" value="0x32315241" />
+            <entry name="abgr4444" value="0x32314241" />
+            <entry name="rgba4444" value="0x32314152" />
+            <entry name="bgra4444" value="0x32314142" />
+            <entry name="xrgb1555" value="0x35315258" />
+            <entry name="xbgr1555" value="0x35314258" />
+            <entry name="rgbx5551" value="0x35315852" />
+            <entry name="bgrx5551" value="0x35315842" />
+            <entry name="argb1555" value="0x35315241" />
+            <entry name="abgr1555" value="0x35314241" />
+            <entry name="rgba5551" value="0x35314152" />
+            <entry name="bgra5551" value="0x35314142" />
+            <entry name="rgb565" value="0x36314752" />
+            <entry name="bgr565" value="0x36314742" />
+            <entry name="rgb888" value="0x34324752" />
+            <entry name="bgr888" value="0x34324742" />
+            <entry name="xrgb8888" value="0x34325258" />
+            <entry name="xbgr8888" value="0x34324258" />
+            <entry name="rgbx8888" value="0x34325852" />
+            <entry name="bgrx8888" value="0x34325842" />
+            <entry name="argb8888" value="0x34325241" />
+            <entry name="abgr8888" value="0x34324241" />
+            <entry name="rgba8888" value="0x34324152" />
+            <entry name="bgra8888" value="0x34324142" />
+            <entry name="xrgb2101010" value="0x30335258" />
+            <entry name="xbgr2101010" value="0x30334258" />
+            <entry name="rgbx1010102" value="0x30335852" />
+            <entry name="bgrx1010102" value="0x30335842" />
+            <entry name="argb2101010" value="0x30335241" />
+            <entry name="abgr2101010" value="0x30334241" />
+            <entry name="rgba1010102" value="0x30334152" />
+            <entry name="bgra1010102" value="0x30334142" />
+            <entry name="yuyv" value="0x56595559" />
+            <entry name="yvyu" value="0x55595659" />
+            <entry name="uyvy" value="0x59565955" />
+            <entry name="vyuy" value="0x59555956" />
+            <entry name="ayuv" value="0x56555941" />
+            <entry name="xyuv8888" value="0x56555958" />
+            <entry name="nv12" value="0x3231564e" />
+            <entry name="nv21" value="0x3132564e" />
+            <entry name="nv16" value="0x3631564e" />
+            <entry name="nv61" value="0x3136564e" />
+            <entry name="yuv410" value="0x39565559" />
+            <entry name="yvu410" value="0x39555659" />
+            <entry name="yuv411" value="0x31315559" />
+            <entry name="yvu411" value="0x31315659" />
+            <entry name="yuv420" value="0x32315559" />
+            <entry name="yvu420" value="0x32315659" />
+            <entry name="yuv422" value="0x36315559" />
+            <entry name="yvu422" value="0x36315659" />
+            <entry name="yuv444" value="0x34325559" />
+            <entry name="yvu444" value="0x34325659" />
+            <entry name="abgr16f" value="0x48344241" />
+            <entry name="xbgr16f" value="0x48344258" />
+        </enum>
+
+        <!-- Call this request with the magic received from drmGetMagic().
+         It will be passed on to the drmAuthMagic() or
+         DRIAuthConnection() call.  This authentication must be
+         completed before create_buffer could be used. -->
+        <request name="authenticate">
+            <arg name="id" type="uint" />
+        </request>
+
+        <!-- Create a wayland buffer for the named DRM buffer.  The DRM
+         surface must have a name using the flink ioctl -->
+        <request name="create_buffer">
+            <arg name="id" type="new_id" interface="wl_buffer" />
+            <arg name="name" type="uint" />
+            <arg name="width" type="int" />
+            <arg name="height" type="int" />
+            <arg name="stride" type="uint" />
+            <arg name="format" type="uint" />
+        </request>
+
+        <!-- Create a wayland buffer for the named DRM buffer.  The DRM
+         surface must have a name using the flink ioctl -->
+        <request name="create_planar_buffer">
+            <arg name="id" type="new_id" interface="wl_buffer" />
+            <arg name="name" type="uint" />
+            <arg name="width" type="int" />
+            <arg name="height" type="int" />
+            <arg name="format" type="uint" />
+            <arg name="offset0" type="int" />
+            <arg name="stride0" type="int" />
+            <arg name="offset1" type="int" />
+            <arg name="stride1" type="int" />
+            <arg name="offset2" type="int" />
+            <arg name="stride2" type="int" />
+        </request>
+
+        <!-- Notification of the path of the drm device which is used by
+         the server.  The client should use this device for creating
+         local buffers.  Only buffers created from this device should
+         be be passed to the server using this drm object's
+         create_buffer request. -->
+        <event name="device">
+            <arg name="name" type="string" />
+        </event>
+
+        <event name="format">
+            <arg name="format" type="uint" />
+        </event>
+
+        <!-- Raised if the authenticate request succeeded -->
+        <event name="authenticated" />
+
+        <enum name="capability" since="2">
+            <description summary="wl_drm capability bitmask">
+                Bitmask of capabilities.
+            </description>
+            <entry name="prime" value="1" summary="wl_drm prime available" />
+        </enum>
+
+        <event name="capabilities">
+            <arg name="value" type="uint" />
+        </event>
+
+        <!-- Version 2 additions -->
+
+        <!-- Create a wayland buffer for the prime fd.  Use for regular and planar
+         buffers.  Pass 0 for offset and stride for unused planes. -->
+        <request name="create_prime_buffer" since="2">
+            <arg name="id" type="new_id" interface="wl_buffer" />
+            <arg name="name" type="fd" />
+            <arg name="width" type="int" />
+            <arg name="height" type="int" />
+            <arg name="format" type="uint" />
+            <arg name="offset0" type="int" />
+            <arg name="stride0" type="int" />
+            <arg name="offset1" type="int" />
+            <arg name="stride1" type="int" />
+            <arg name="offset2" type="int" />
+            <arg name="stride2" type="int" />
+        </request>
+
+    </interface>
+
+</protocol>

src/wayland/xwayland.rs

@@ -1,437 +0,0 @@
-use super::{
-	seat::{KeyboardEvent, PointerEvent, SeatData},
-	state::ClientState,
-};
-use crate::{
-	nodes::{
-		data::KEYMAPS,
-		drawable::model::ModelPart,
-		items::panel::{Backend, Geometry, PanelItem, PanelItemInitData, SurfaceID, ToplevelInfo},
-	},
-	wayland::surface::CoreSurface,
-};
-use color_eyre::eyre::Result;
-use mint::Vector2;
-use once_cell::sync::OnceCell;
-use parking_lot::Mutex;
-use rustc_hash::FxHashMap;
-use smithay::{
-	reexports::{
-		calloop::{EventLoop, LoopSignal},
-		wayland_server::{protocol::wl_surface::WlSurface, DisplayHandle, Resource},
-		x11rb::protocol::xproto::Window,
-	},
-	utils::{Logical, Rectangle},
-	wayland::compositor,
-	xwayland::{
-		xwm::{Reorder, ResizeEdge, XwmId},
-		X11Surface, X11Wm, XWayland, XWaylandEvent, XwmHandler,
-	},
-};
-use std::{ffi::OsStr, iter::empty, sync::Arc, time::Duration};
-use tokio::sync::oneshot;
-use tracing::debug;
-
-pub static DISPLAY: OnceCell<String> = OnceCell::new();
-
-pub struct XWaylandState {
-	pub display: u32,
-	event_loop_signal: LoopSignal,
-}
-impl XWaylandState {
-	pub fn create(dh: &DisplayHandle) -> Result<Self> {
-		let dh = dh.clone();
-
-		let (tx, rx) = oneshot::channel();
-
-		std::thread::spawn(move || {
-			let mut event_loop: EventLoop<XWaylandHandler> = EventLoop::try_new()?;
-			let (xwayland, connection) = XWayland::new(&dh);
-			let handle = event_loop.handle();
-			event_loop
-				.handle()
-				.insert_source(connection, {
-					let dh = dh.clone();
-					move |event, _, handler| match event {
-						XWaylandEvent::Ready {
-							connection,
-							client,
-							client_fd: _,
-							display: _,
-						} => {
-							handler.seat = client.get_data::<ClientState>().map(|s| s.seat.clone());
-							handler.wm =
-								X11Wm::start_wm(handle.clone(), dh.clone(), connection, client)
-									.ok();
-						}
-						XWaylandEvent::Exited => (),
-					}
-				})
-				.map_err(|e| e.error)?;
-
-			let display = xwayland.start(
-				event_loop.handle(),
-				None,
-				empty::<(&OsStr, &OsStr)>(),
-				true,
-				|_| (),
-			)?;
-			let _ = tx.send(XWaylandState {
-				display,
-				event_loop_signal: event_loop.get_signal(),
-			});
-			let mut handler = XWaylandHandler {
-				wayland_display_handle: dh,
-				wm: None,
-				seat: None,
-			};
-			event_loop.run(Duration::from_millis(100), &mut handler, |_| ())
-		});
-
-		let state = rx.blocking_recv()?;
-		let _ = DISPLAY.set(format!(":{}", state.display));
-
-		Ok(state)
-	}
-}
-impl Drop for XWaylandState {
-	fn drop(&mut self) {
-		self.event_loop_signal.stop();
-	}
-}
-
-struct XWaylandHandler {
-	wayland_display_handle: DisplayHandle,
-	wm: Option<X11Wm>,
-	seat: Option<Arc<SeatData>>,
-}
-impl XWaylandHandler {
-	fn panel_item(&self, window: &X11Surface) -> Option<Arc<PanelItem<X11Backend>>> {
-		compositor::with_states(&window.wl_surface()?, |s| {
-			s.data_map.get::<Arc<PanelItem<X11Backend>>>().cloned()
-		})
-	}
-}
-
-impl XwmHandler for XWaylandHandler {
-	fn xwm_state(&mut self, _xwm: XwmId) -> &mut X11Wm {
-		self.wm.as_mut().unwrap()
-	}
-
-	fn new_window(&mut self, _xwm: XwmId, window: X11Surface) {
-		debug!(?window, "New X window");
-	}
-
-	fn new_override_redirect_window(&mut self, _xwm: XwmId, window: X11Surface) {
-		debug!(?window, "New X override redirect window");
-	}
-
-	fn map_window_request(&mut self, _xwm: XwmId, window: X11Surface) {
-		debug!(?window, "X map window request");
-		window.set_mapped(true).unwrap();
-	}
-	fn map_window_notify(&mut self, _xwm: XwmId, window: X11Surface) {
-		debug!(?window, "X map window notify");
-
-		let _ = window.set_maximized(true);
-
-		let dh = self.wayland_display_handle.clone();
-		let seat = self.seat.clone().unwrap();
-		CoreSurface::add_to(
-			self.wayland_display_handle.clone(),
-			&window.wl_surface().unwrap(),
-			{
-				let window = window.clone();
-				move || {
-					let Some(wl_surface) = window.wl_surface() else {return};
-					let seat = seat.clone();
-					window.user_data().insert_if_missing_threadsafe(|| {
-						let panel_item = PanelItem::create(
-							Box::new(X11Backend {
-								toplevel_parent: None,
-								toplevel: window.clone(),
-								seat,
-								_pointer_grab: Mutex::new(None),
-								_keyboard_grab: Mutex::new(None),
-							}),
-							wl_surface
-								.client()
-								.and_then(|c| c.get_credentials(&dh).ok())
-								.map(|c| c.pid),
-						);
-						panel_item
-					});
-				}
-			},
-			move |_| {
-				let Some(panel_item) = window.user_data().get::<Arc<PanelItem<X11Backend>>>() else {return};
-				panel_item.toplevel_size_changed(
-					[
-						window.geometry().size.w as u32,
-						window.geometry().size.h as u32,
-					]
-					.into(),
-				);
-			},
-		);
-	}
-	fn mapped_override_redirect_window(&mut self, _xwm: XwmId, window: X11Surface) {
-		debug!(?window, "X map override redirect window");
-	}
-
-	fn unmapped_window(&mut self, _xwm: XwmId, window: X11Surface) {
-		debug!(?window, "Unmap X window");
-	}
-	fn destroyed_window(&mut self, _xwm: XwmId, window: X11Surface) {
-		debug!(?window, "Destroy X window");
-	}
-
-	fn configure_request(
-		&mut self,
-		_xwm: XwmId,
-		window: X11Surface,
-		x: Option<i32>,
-		y: Option<i32>,
-		w: Option<u32>,
-		h: Option<u32>,
-		reorder: Option<Reorder>,
-	) {
-		debug!(?window, x, y, w, h, ?reorder, "Configure X window");
-	}
-
-	fn configure_notify(
-		&mut self,
-		_xwm: XwmId,
-		window: X11Surface,
-		geometry: Rectangle<i32, Logical>,
-		above: Option<Window>,
-	) {
-		debug!(?window, ?geometry, above, "Configure X window");
-	}
-
-	fn move_request(&mut self, _xwm: XwmId, window: X11Surface, button: u32) {
-		let Some(panel_item) = self.panel_item(&window) else {return};
-		debug!(?window, button, "X window requests move");
-		panel_item.toplevel_move_request();
-	}
-	fn resize_request(
-		&mut self,
-		_xwm: XwmId,
-		window: X11Surface,
-		button: u32,
-		resize_edge: ResizeEdge,
-	) {
-		let Some(panel_item) = self.panel_item(&window) else {return};
-		debug!(?window, button, ?resize_edge, "X window requests resize");
-		let (up, down, left, right) = match resize_edge {
-			ResizeEdge::Top => (true, false, false, false),
-			ResizeEdge::Bottom => (false, true, false, false),
-			ResizeEdge::Left => (false, false, true, false),
-			ResizeEdge::TopLeft => (true, false, true, false),
-			ResizeEdge::BottomLeft => (false, true, true, false),
-			ResizeEdge::Right => (false, false, false, true),
-			ResizeEdge::TopRight => (true, false, false, true),
-			ResizeEdge::BottomRight => (false, true, false, true),
-			// _ => (false, false, false, false),
-		};
-		panel_item.toplevel_resize_request(up, down, left, right)
-	}
-
-	fn fullscreen_request(&mut self, _xwm: XwmId, window: X11Surface) {
-		let _ = window.set_fullscreen(true);
-		let Some(panel_item) = self.panel_item(&window) else {return};
-		panel_item.toplevel_fullscreen_active(true);
-	}
-	fn unfullscreen_request(&mut self, _xwm: XwmId, window: X11Surface) {
-		let _ = window.set_fullscreen(false);
-		let Some(panel_item) = self.panel_item(&window) else {return};
-		panel_item.toplevel_fullscreen_active(true);
-	}
-}
-
-pub struct X11Backend {
-	pub toplevel_parent: Option<X11Surface>,
-	pub toplevel: X11Surface,
-	pub seat: Arc<SeatData>,
-	_pointer_grab: Mutex<Option<SurfaceID>>,
-	_keyboard_grab: Mutex<Option<SurfaceID>>,
-}
-impl X11Backend {
-	fn wl_surface_from_id(&self, id: &SurfaceID) -> Option<WlSurface> {
-		match id {
-			SurfaceID::Cursor => None,
-			SurfaceID::Toplevel => self.toplevel.wl_surface(),
-			SurfaceID::Child(_) => None,
-		}
-	}
-
-	// fn flush_client(&self) {
-	// 	let Some(client) = self.toplevel.wl_surface().and_then(|s| s.client()) else {return};
-	// 	if let Some(client_state) = client.get_data::<ClientState>() {
-	// 		client_state.flush();
-	// 	}
-	// }
-}
-impl Backend for X11Backend {
-	// fn start_data(&self, id: &str) -> Result<Message> {
-	// 	let size = (
-	// 		self.toplevel.geometry().size.w as u32,
-	// 		self.toplevel.geometry().size.h as u32,
-	// 	);
-	// 	let toplevel_state = (
-	// 		None::<String>,
-	// 		self.toplevel.title(),
-	// 		None::<String>,
-	// 		(
-	// 			self.toplevel.geometry().size.w as u32,
-	// 			self.toplevel.geometry().size.h as u32,
-	// 		),
-	// 		self.toplevel.min_size().map(|s| (s.w as u32, s.h as u32)),
-	// 		self.toplevel.max_size().map(|s| (s.w as u32, s.w as u32)),
-	// 		((0_i32, 0_i32), size),
-	// 		vec![0_u32; 0],
-	// 	);
-	// 	let info = (
-	// 		None::<(Vector2<u32>, Vector2<i32>)>,
-	// 		toplevel_state,
-	// 		Vec::<PopupData>::new(),
-	// 		None::<SurfaceID>,
-	// 		None::<SurfaceID>,
-	// 	);
-	// 	Ok(serialize((id, info))?.into())
-	// }
-	// fn serialize_toplevel(&self) -> Result<Message> {
-	// 	let toplevel_state = (
-	// 		None::<String>,
-	// 		self.toplevel.title(),
-	// 		None::<String>,
-	// 		(
-	// 			self.toplevel.geometry().size.w,
-	// 			self.toplevel.geometry().size.h,
-	// 		),
-	// 		self.toplevel.min_size().map(|s| (s.w, s.h)),
-	// 		self.toplevel.max_size().map(|s| (s.w, s.w)),
-	// 	);
-	// 	let data = serialize(&toplevel_state)?;
-	// 	Ok(data.into())
-	// }
-
-	// fn set_toplevel_capabilities(&self, _capabilities: Vec<u8>) {}
-
-	// fn set_toplevel_size(
-	// 	&self,
-	// 	size: Option<Vector2<u32>>,
-	// 	states: Vec<u32>,
-	// 	_bounds: Option<Vector2<u32>>,
-	// ) {
-	// 	let _ = self.toplevel.configure(
-	// 		size.map(|s| Rectangle::from_loc_and_size((0, 0), (s.x as i32, s.y as i32))),
-	// 	);
-	// 	let _ = self.toplevel.set_maximized(states.contains(&1));
-	// }
-
-	fn start_data(&self) -> Result<PanelItemInitData> {
-		Ok(PanelItemInitData {
-			cursor: None,
-			toplevel: ToplevelInfo {
-				parent: None,
-				title: Some(self.toplevel.title()),
-				app_id: Some(self.toplevel.instance()),
-				size: [
-					self.toplevel.geometry().size.w as u32,
-					self.toplevel.geometry().size.h as u32,
-				]
-				.into(),
-				min_size: self
-					.toplevel
-					.min_size()
-					.map(|s| [s.w as u32, s.h as u32].into()),
-				max_size: self
-					.toplevel
-					.max_size()
-					.map(|s| [s.w as u32, s.h as u32].into()),
-				logical_rectangle: Geometry {
-					origin: [0, 0].into(),
-					size: [
-						self.toplevel.geometry().size.w as u32,
-						self.toplevel.geometry().size.h as u32,
-					]
-					.into(),
-				},
-			},
-			children: FxHashMap::default(),
-			pointer_grab: self._pointer_grab.lock().clone(),
-			keyboard_grab: self._keyboard_grab.lock().clone(),
-		})
-	}
-	fn close_toplevel(&self) {}
-
-	fn auto_size_toplevel(&self) {
-		let _ = self.toplevel.configure(None);
-	}
-	fn set_toplevel_size(&self, size: Vector2<u32>) {
-		let _ = self.toplevel.configure(Some(Rectangle {
-			loc: self.toplevel.geometry().loc,
-			size: (size.x as i32, size.y as i32).into(),
-		}));
-	}
-	fn set_toplevel_focused_visuals(&self, focused: bool) {
-		let _ = self.toplevel.set_activated(focused);
-	}
-
-	fn apply_surface_material(&self, surface: SurfaceID, model_part: &Arc<ModelPart>) {
-		let Some(wl_surface) = self.wl_surface_from_id(&surface) else {return};
-		let Some(core_surface) = CoreSurface::from_wl_surface(&wl_surface) else {return};
-
-		core_surface.apply_material(model_part);
-	}
-
-	fn pointer_motion(&self, surface: &SurfaceID, position: Vector2<f32>) {
-		let Some(surface) = self.wl_surface_from_id(surface) else {return};
-		self.seat
-			.pointer_event(&surface, PointerEvent::Motion(position));
-	}
-	fn pointer_button(&self, surface: &SurfaceID, button: u32, pressed: bool) {
-		let Some(surface) = self.wl_surface_from_id(surface) else {return};
-		self.seat.pointer_event(
-			&surface,
-			PointerEvent::Button {
-				button,
-				state: if pressed { 1 } else { 0 },
-			},
-		)
-	}
-	fn pointer_scroll(
-		&self,
-		surface: &SurfaceID,
-		scroll_distance: Option<Vector2<f32>>,
-		scroll_steps: Option<Vector2<f32>>,
-	) {
-		let Some(surface) = self.wl_surface_from_id(surface) else {return};
-		self.seat.pointer_event(
-			&surface,
-			PointerEvent::Scroll {
-				axis_continuous: scroll_distance,
-				axis_discrete: scroll_steps,
-			},
-		)
-	}
-
-	fn keyboard_keys(&self, surface: &SurfaceID, keymap_id: &str, keys: Vec<i32>) {
-		let Some(surface) = self.wl_surface_from_id(surface) else {return};
-		let keymaps = KEYMAPS.lock();
-		let Some(keymap) = keymaps.get(keymap_id).cloned() else {return};
-		if self.seat.set_keymap(keymap, vec![surface.clone()]).is_err() {
-			return;
-		}
-		for key in keys {
-			self.seat.keyboard_event(
-				&surface,
-				KeyboardEvent::Key {
-					key: key.abs() as u32,
-					state: if key < 0 { 1 } else { 0 },
-				},
-			);
-		}
-	}
-}