refactor: use typemap for aspects!

Cargo.lock

@@ -786,6 +786,24 @@ dependencies = [
  "pin-utils",
 ]
 
+[[package]]
+name = "fxhash"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c31b6d751ae2c7f11320402d34e41349dd1016f8d5d45e48c4312bc8625af50c"
+dependencies = [
+ "byteorder",
+]
+
+[[package]]
+name = "fxtypemap"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c11c87c936dd5cbf3389179749cf020d886f32cc577fc214a7a65eaac5c569db"
+dependencies = [
+ "fxhash",
+]
+
 [[package]]
 name = "generator"
 version = "0.7.5"
@@ -2108,6 +2126,7 @@ dependencies = [
  "console-subscriber",
  "ctrlc",
  "directories",
+ "fxtypemap",
  "glam 0.23.0",
  "global_counter",
  "input-event-codes",

Cargo.toml

@@ -70,6 +70,7 @@ nix = "0.27.1"
 wayland-scanner = "0.31.0"
 wayland-backend = "0.3.2"
 cluFlock = "1.2.7"
+fxtypemap = "0.2.0"
 
 [dependencies.smithay]
 # git = "https://github.com/technobaboo/smithay.git" # Until we get stereokit to understand OES samplers and external textures

src/core/client.rs

@@ -1,5 +1,6 @@
 use super::{
 	client_state::{ClientState, CLIENT_STATES},
+	destroy_queue,
 	scenegraph::Scenegraph,
 };
 use crate::{
@@ -209,7 +210,9 @@ 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 Drop for Client {

src/core/client_state.rs

@@ -49,7 +49,7 @@ impl ClientState {
 	}
 	fn spatial_transform(client: &Client, path: &str) -> Option<Mat4> {
 		let node = client.scenegraph.get_node(path)?;
-		let spatial = node.spatial.get()?;
+		let spatial = node.get_aspect::<Spatial>().ok()?;
 		Some(spatial.global_transform())
 	}
 
@@ -81,7 +81,7 @@ impl ClientState {
 						let node = Node::create_parent_name(client, "/spatial/anchor", k, true)
 							.add_to_scenegraph()
 							.unwrap();
-						Spatial::add_to(&node, None, *v, false).unwrap();
+						Spatial::add_to(&node, None, *v, false);
 						k.clone()
 					})
 				})

src/core/destroy_queue.rs

@@ -1,12 +1,22 @@
+use once_cell::sync::Lazy;
 use parking_lot::Mutex;
 use std::any::Any;
+use tokio::sync::mpsc::{self, unbounded_channel};
 
-static MAIN_DESTROY_QUEUE: Mutex<Vec<Box<dyn Any + Send + Sync>>> = Mutex::new(Vec::new());
+static MAIN_DESTROY_QUEUE: Lazy<(
+	mpsc::UnboundedSender<Box<dyn Any + Send + Sync>>,
+	Mutex<mpsc::UnboundedReceiver<Box<dyn Any + Send + Sync>>>,
+)> = Lazy::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/registry.rs

@@ -5,6 +5,7 @@ use rustc_hash::FxHashMap;
 use std::ptr;
 use std::sync::{Arc, Weak};
 
+#[derive(Debug)]
 pub struct Registry<T: Send + Sync + ?Sized>(Mutex<Option<FxHashMap<usize, Weak<T>>>>);
 
 impl<T: Send + Sync + ?Sized> Registry<T> {
@@ -56,7 +57,9 @@ impl<T: Send + Sync + ?Sized> Registry<T> {
 	}
 	pub fn is_empty(&self) -> bool {
 		let registry = self.0.lock();
-		let Some(registry) = &*registry else {return true};
+		let Some(registry) = &*registry else {
+			return true;
+		};
 		if registry.is_empty() {
 			return true;
 		}
@@ -68,6 +71,11 @@ impl<T: Send + Sync + ?Sized> Clone for Registry<T> {
 		Self(Mutex::new(self.0.lock().clone()))
 	}
 }
+impl<T: Send + Sync + ?Sized> Default for Registry<T> {
+	fn default() -> Self {
+		Self::new()
+	}
+}
 
 pub struct OwnedRegistry<T: Send + Sync + ?Sized>(Mutex<Option<FxHashMap<usize, Arc<T>>>>);
 
@@ -98,9 +106,12 @@ 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/scenegraph.rs

@@ -1,3 +1,4 @@
+use crate::nodes::alias::Alias;
 use crate::nodes::Node;
 use crate::{core::client::Client, nodes::Message};
 use color_eyre::eyre::Result;
@@ -39,7 +40,7 @@ impl Scenegraph {
 
 	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() {
+		while let Ok(alias) = node.get_aspect::<Alias>() {
 			if alias.enabled.load(Ordering::Acquire) {
 				node = alias.original.upgrade()?;
 			} else {

src/nodes/alias.rs

@@ -1,4 +1,4 @@
-use super::Node;
+use super::{Aspect, Node};
 use crate::core::client::Client;
 use color_eyre::eyre::{ensure, Result};
 use portable_atomic::AtomicBool;
@@ -43,7 +43,10 @@ impl Alias {
 			info,
 		};
 		let alias = original.aliases.add(alias);
-		let _ = node.alias.set(alias);
+		node.add_aspect_raw(alias);
 		Ok(node)
 	}
 }
+impl Aspect for Alias {
+	const NAME: &'static str = "Alias";
+}

src/nodes/audio.rs

@@ -1,12 +1,11 @@
-use super::spatial::get_spatial;
-use super::Node;
+use super::{Aspect, Node};
 use crate::core::client::Client;
 use crate::core::destroy_queue;
 use crate::core::registry::Registry;
 use crate::core::resource::get_resource_file;
 use crate::create_interface;
 use crate::nodes::spatial::{Spatial, Transform};
-use color_eyre::eyre::{ensure, eyre, Result};
+use color_eyre::eyre::{eyre, Result};
 use glam::{vec3, Vec4Swizzles};
 use once_cell::sync::OnceCell;
 use parking_lot::Mutex;
@@ -33,10 +32,6 @@ pub struct Sound {
 }
 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 = get_resource_file(
 			&resource_id,
 			&*node.get_client().ok_or_else(|| eyre!("Client not found"))?,
@@ -44,7 +39,7 @@ impl Sound {
 		)
 		.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(),
@@ -53,7 +48,7 @@ impl Sound {
 			play: Mutex::new(None),
 		};
 		let sound_arc = SOUND_REGISTRY.add(sound);
-		let _ = node.sound.set(sound_arc.clone());
+		node.add_aspect_raw(sound_arc.clone());
 		<Sound as SoundAspect>::add_node_members(node);
 		Ok(sound_arc)
 	}
@@ -79,14 +74,17 @@ impl Sound {
 		}
 	}
 }
+impl Aspect for Sound {
+	const NAME: &'static str = "Sound";
+}
 impl SoundAspect for Sound {
 	fn play(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
-		let sound = node.sound.get().unwrap();
+		let sound = node.get_aspect::<Sound>().unwrap();
 		sound.play.lock().replace(());
 		Ok(())
 	}
 	fn stop(node: Arc<Node>, _calling_client: Arc<Client>) -> Result<()> {
-		let sound = node.sound.get().unwrap();
+		let sound = node.get_aspect::<Sound>().unwrap();
 		sound.stop.lock().replace(());
 		Ok(())
 	}
@@ -120,10 +118,10 @@ impl AudioInterfaceAspect for AudioInterface {
 	) -> Result<()> {
 		let node =
 			Node::create_parent_name(&calling_client, Self::CREATE_SOUND_PARENT_PATH, &name, true);
-		let parent = get_spatial(&parent, "Spatial parent")?;
+		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), transform, false)?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
 		Sound::add_to(&node, resource)?;
 		Ok(())
 	}

src/nodes/data.rs

@@ -1,7 +1,7 @@
 use super::alias::AliasInfo;
-use super::fields::get_field;
-use super::spatial::{get_spatial, parse_transform, Spatial};
-use super::{Alias, Node};
+use super::fields::Field;
+use super::spatial::{parse_transform, Spatial};
+use super::{Alias, Aspect, Node};
 use crate::core::client::Client;
 use crate::core::node_collections::LifeLinkedNodeMap;
 use crate::core::registry::Registry;
@@ -62,11 +62,6 @@ pub struct PulseSender {
 }
 impl PulseSender {
 	pub fn add_to(node: &Arc<Node>, mask: Datamap) -> Result<Arc<PulseSender>> {
-		ensure!(
-			node.spatial.get().is_some(),
-			"Internal: Node does not have a spatial attached!"
-		);
-
 		let sender = PulseSender {
 			node: Arc::downgrade(node),
 			mask,
@@ -75,7 +70,7 @@ impl PulseSender {
 
 		// <PulseSender as PulseSenderAspect>::add_node_members(node);
 		let sender = PULSE_SENDER_REGISTRY.add(sender);
-		let _ = node.pulse_sender.set(sender.clone());
+		node.add_aspect_raw(sender.clone());
 		for receiver in PULSE_RECEIVER_REGISTRY.get_valid_contents() {
 			sender.handle_new_receiver(&receiver);
 		}
@@ -114,7 +109,7 @@ impl PulseSender {
 			&tx_client,
 			rx_alias.get_path(),
 			"field",
-			&rx_node.pulse_receiver.get().unwrap().field_node,
+			&rx_node.get_aspect::<PulseReceiver>().unwrap().field_node,
 			FIELD_ALIAS_INFO.clone(),
 		) else {
 			return;
@@ -136,6 +131,9 @@ impl PulseSender {
 		let _ = pulse_sender_client::drop_receiver(&tx_node, uid);
 	}
 }
+impl Aspect for PulseSender {
+	const NAME: &'static str = "PulseSender";
+}
 impl PulseSenderAspect for PulseSender {}
 impl Drop for PulseSender {
 	fn drop(&mut self) {
@@ -155,11 +153,6 @@ impl PulseReceiver {
 		field_node: Arc<Node>,
 		mask: Datamap,
 	) -> 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),
@@ -169,13 +162,16 @@ impl PulseReceiver {
 		let receiver = PULSE_RECEIVER_REGISTRY.add(receiver);
 
 		<PulseReceiver as PulseReceiverAspect>::add_node_members(node);
-		let _ = node.pulse_receiver.set(receiver.clone());
+		node.add_aspect_raw(receiver.clone());
 		for sender in PULSE_SENDER_REGISTRY.get_valid_contents() {
 			sender.handle_new_receiver(&receiver);
 		}
 		Ok(receiver)
 	}
 }
+impl Aspect for PulseReceiver {
+	const NAME: &'static str = "PulseReceiver";
+}
 impl PulseReceiverAspect for PulseReceiver {
 	fn send_data(
 		node: Arc<Node>,
@@ -183,7 +179,7 @@ impl PulseReceiverAspect for PulseReceiver {
 		sender: Arc<Node>,
 		data: Datamap,
 	) -> Result<()> {
-		let this_receiver = node.pulse_receiver.get().unwrap();
+		let this_receiver = node.get_aspect::<PulseReceiver>().unwrap();
 
 		ensure!(
 			mask_matches(&this_receiver.mask, &data),
@@ -221,11 +217,11 @@ impl DataInterfaceAspect for DataInterface {
 			&name,
 			true,
 		);
-		let parent = get_spatial(&parent, "Spatial parent")?;
+		let parent = parent.get_aspect::<Spatial>()?;
 		let transform = transform.to_mat4(true, true, false);
 
 		let node = node.add_to_scenegraph()?;
-		Spatial::add_to(&node, Some(parent), transform, false)?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
 		PulseSender::add_to(&node, mask)?;
 		Ok(())
 	}
@@ -246,12 +242,12 @@ impl DataInterfaceAspect for DataInterface {
 			&name,
 			true,
 		);
-		let parent = get_spatial(&parent, "Spatial parent")?;
+		let parent = parent.get_aspect::<Spatial>()?;
 		let transform = parse_transform(transform, true, true, false);
-		get_field(&field)?;
+		let _ = field.get_aspect::<Field>()?;
 
 		let node = node.add_to_scenegraph()?;
-		Spatial::add_to(&node, Some(parent), transform, false)?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
 		PulseReceiver::add_to(&node, field, mask)?;
 		Ok(())
 	}

src/nodes/drawable/lines.rs

@@ -1,9 +1,9 @@
-use super::{Drawable, Line, LinesAspect};
+use super::{Line, LinesAspect};
 use crate::{
 	core::{client::Client, registry::Registry},
-	nodes::{spatial::Spatial, Node},
+	nodes::{spatial::Spatial, Aspect, Node},
 };
-use color_eyre::eyre::{bail, ensure, Result};
+use color_eyre::eyre::Result;
 use glam::Vec3A;
 use parking_lot::Mutex;
 use portable_atomic::{AtomicBool, Ordering};
@@ -20,31 +20,29 @@ pub struct Lines {
 }
 impl Lines {
 	pub fn add_to(node: &Arc<Node>, lines: Vec<Line>) -> 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 line in &*lines.data.lock() {
-				for point in &line.points {
-					bounds = bounds_grow_to_fit_pt(bounds, point.point);
+		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 = bounds_grow_to_fit_pt(bounds, point.point);
+						}
+					}
 				}
-			}
-			bounds
-		});
+				bounds
+			});
 
 		let lines = LINES_REGISTRY.add(Lines {
 			enabled: node.enabled.clone(),
-			space: node.get_aspect("Lines", "spatial", |n| &n.spatial)?.clone(),
+			space: node.get_aspect::<Spatial>()?.clone(),
 			data: Mutex::new(lines),
 		});
 		<Lines as LinesAspect>::add_node_members(node);
-		let _ = node.drawable.set(Drawable::Lines(lines.clone()));
+		node.add_aspect_raw(lines.clone());
 
 		Ok(lines)
 	}
@@ -94,12 +92,12 @@ impl Lines {
 		}
 	}
 }
+impl Aspect for Lines {
+	const NAME: &'static str = "Lines";
+}
 impl LinesAspect for Lines {
 	fn set_lines(node: Arc<Node>, _calling_client: Arc<Client>, lines: Vec<Line>) -> Result<()> {
-		let Some(Drawable::Lines(lines_aspect)) = node.drawable.get() else {
-			bail!("Not a drawable??")
-		};
-
+		let lines_aspect = node.get_aspect::<Lines>()?;
 		*lines_aspect.data.lock() = lines;
 		Ok(())
 	}

src/nodes/drawable/mod.rs

@@ -3,14 +3,9 @@ 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::{
-	spatial::{get_spatial, Spatial, Transform},
+	spatial::{Spatial, Transform},
 	Node,
 };
 use crate::{
@@ -23,13 +18,6 @@ use stardust_xr::values::ResourceID;
 use std::{ffi::OsStr, path::PathBuf, sync::Arc};
 use stereokit::StereoKitDraw;
 
-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);
@@ -87,11 +75,11 @@ impl DrawableInterfaceAspect for DrawableInterface {
 	) -> Result<()> {
 		let node =
 			Node::create_parent_name(&calling_client, Self::CREATE_LINES_PARENT_PATH, &name, true);
-		let parent = get_spatial(&parent, "Spatial parent")?;
+		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), transform, false)?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
 		Lines::add_to(&node, lines)?;
 		Ok(())
 	}
@@ -107,10 +95,10 @@ impl DrawableInterfaceAspect for DrawableInterface {
 	) -> Result<()> {
 		let node =
 			Node::create_parent_name(&calling_client, Self::LOAD_MODEL_PARENT_PATH, &name, true);
-		let parent = get_spatial(&parent, "Spatial parent")?;
+		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), transform, false)?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
 		Model::add_to(&node, model)?;
 		Ok(())
 	}
@@ -127,11 +115,11 @@ impl DrawableInterfaceAspect for DrawableInterface {
 	) -> Result<()> {
 		let node =
 			Node::create_parent_name(&calling_client, Self::CREATE_TEXT_PARENT_PATH, &name, true);
-		let parent = get_spatial(&parent, "Spatial parent")?;
+		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), transform, false)?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
 		Text::add_to(&node, text, style)?;
 		Ok(())
 	}

src/nodes/drawable/model.rs

@@ -4,10 +4,10 @@ use crate::core::destroy_queue;
 use crate::core::node_collections::LifeLinkedNodeMap;
 use crate::core::registry::Registry;
 use crate::core::resource::get_resource_file;
-use crate::nodes::drawable::Drawable;
 use crate::nodes::spatial::Spatial;
+use crate::nodes::Aspect;
 use crate::SK_MULTITHREAD;
-use color_eyre::eyre::{bail, ensure, eyre, Result};
+use color_eyre::eyre::{eyre, Result};
 use once_cell::sync::OnceCell;
 use parking_lot::Mutex;
 use portable_atomic::{AtomicBool, Ordering};
@@ -133,10 +133,7 @@ impl ModelPart {
 			.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,
-			});
+			.and_then(|node| node.get_aspect::<ModelPart>().ok());
 
 		let stardust_model_part = model.space.node()?;
 		let client = stardust_model_part.get_client()?;
@@ -149,34 +146,37 @@ impl ModelPart {
 			false,
 		));
 		let spatial_parent = parent_node
-			.and_then(|n| n.spatial.get().cloned())
+			.and_then(|n| n.get_aspect::<Spatial>().ok())
 			.unwrap_or_else(|| model.space.clone());
 		let space = Spatial::add_to(
 			&node,
 			Some(spatial_parent),
 			sk.model_node_get_transform_local(sk_model, id),
 			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 _ = node
+			.get_aspect::<Spatial>()
+			.unwrap()
+			.bounding_box_calc
+			.set(|node| {
+				let Ok(model_part) = node.get_aspect::<ModelPart>() 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 model_part = Arc::new(ModelPart {
 			id,
@@ -187,7 +187,7 @@ impl ModelPart {
 			pending_material_replacement: Mutex::new(None),
 		});
 		<ModelPart as ModelPartAspect>::add_node_members(&node);
-		let _ = node.drawable.set(Drawable::ModelPart(model_part.clone()));
+		node.add_aspect_raw(model_part.clone());
 		model.parts.add(id, &node);
 		Some(model_part)
 	}
@@ -232,12 +232,13 @@ impl ModelPart {
 		);
 	}
 }
+impl Aspect for ModelPart {
+	const NAME: &'static str = "ModelPart";
+}
 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 Some(Drawable::ModelPart(model_part)) = node.drawable.get() else {
-			bail!("Not a drawable??")
-		};
+		let model_part = node.get_aspect::<ModelPart>()?;
 		model_part.replace_material(HOLDOUT_MATERIAL.get().unwrap().clone());
 		Ok(())
 	}
@@ -249,10 +250,7 @@ impl ModelPartAspect for ModelPart {
 		parameter_name: String,
 		value: MaterialParameter,
 	) -> Result<()> {
-		let Some(Drawable::ModelPart(model_part)) = node.drawable.get() else {
-			bail!("Not a drawable??")
-		};
-
+		let model_part = node.get_aspect::<ModelPart>()?;
 		model_part
 			.pending_material_parameters
 			.lock()
@@ -275,15 +273,6 @@ 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"))?,
@@ -294,7 +283,7 @@ impl Model {
 		let model = Arc::new_cyclic(|self_ref| Model {
 			self_ref: self_ref.clone(),
 			enabled: node.enabled.clone(),
-			space: node.spatial.get().unwrap().clone(),
+			space: node.get_aspect::<Spatial>().unwrap().clone(),
 			_resource_id: resource_id,
 			sk_model: OnceCell::new(),
 			parts: LifeLinkedNodeMap::default(),
@@ -307,7 +296,7 @@ impl Model {
 		);
 		ModelPart::create_for_model(sk, &model.self_ref.upgrade().unwrap(), &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)
 	}
 
@@ -316,10 +305,9 @@ impl Model {
 			return;
 		};
 		for model_node_node in self.parts.nodes() {
-			let Some(Drawable::ModelPart(model_node)) = model_node_node.drawable.get() else {
-				continue;
+			if let Ok(model_node) = model_node_node.get_aspect::<ModelPart>() {
+				model_node.update(sk);
 			};
-			model_node.update(sk);
 		}
 
 		sk.model_draw(
@@ -330,6 +318,9 @@ impl Model {
 		);
 	}
 }
+impl Aspect for Model {
+	const NAME: &'static str = "Model";
+}
 impl ModelAspect for Model {}
 impl Drop for Model {
 	fn drop(&mut self) {

src/nodes/drawable/text.rs

@@ -1,8 +1,8 @@
 use crate::{
 	core::{client::Client, destroy_queue, registry::Registry, resource::get_resource_file},
-	nodes::{drawable::Drawable, spatial::Spatial, Node},
+	nodes::{spatial::Spatial, Aspect, Node},
 };
-use color_eyre::eyre::{bail, ensure, eyre, Result};
+use color_eyre::eyre::{eyre, Result};
 use glam::{vec3, Mat4, Vec2};
 use once_cell::sync::OnceCell;
 use parking_lot::Mutex;
@@ -42,19 +42,10 @@ pub struct Text {
 }
 impl Text {
 	pub fn add_to(node: &Arc<Node>, text: String, style: TextStyle) -> 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!"
-		);
-
 		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(),
+			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")])
 			}),
@@ -64,7 +55,7 @@ impl Text {
 			data: Mutex::new(style),
 		});
 		<Text as TextAspect>::add_node_members(node);
-		let _ = node.drawable.set(Drawable::Text(text.clone()));
+		node.add_aspect_raw(text.clone());
 
 		Ok(text)
 	}
@@ -122,26 +113,23 @@ impl Text {
 		}
 	}
 }
+impl Aspect for Text {
+	const NAME: &'static str = "Text";
+}
 impl TextAspect for Text {
 	fn set_character_height(
 		node: Arc<Node>,
 		_calling_client: Arc<Client>,
 		height: f32,
 	) -> Result<()> {
-		let Some(Drawable::Text(text)) = node.drawable.get() else {
-			bail!("Not a drawable??")
-		};
-
-		text.data.lock().character_height = height;
+		let this_text = node.get_aspect::<Text>()?;
+		this_text.data.lock().character_height = height;
 		Ok(())
 	}
 
 	fn set_text(node: Arc<Node>, _calling_client: Arc<Client>, text: String) -> Result<()> {
-		let Some(Drawable::Text(text_aspect)) = node.drawable.get() else {
-			bail!("Not a drawable??")
-		};
-
-		*text_aspect.text.lock() = text;
+		let this_text = node.get_aspect::<Text>()?;
+		*this_text.text.lock() = text;
 		Ok(())
 	}
 }

src/nodes/fields/box.rs

@@ -1,8 +1,8 @@
-use super::{get_field, BoxFieldAspect, Field, FieldTrait, Node};
-use crate::core::client::Client;
+use super::{BoxFieldAspect, FieldTrait, Node};
 use crate::nodes::fields::FieldAspect;
 use crate::nodes::spatial::Spatial;
-use color_eyre::eyre::{ensure, Result};
+use crate::{core::client::Client, nodes::fields::Field};
+use color_eyre::eyre::Result;
 use glam::{vec3, vec3a, Vec3, Vec3A};
 use mint::Vector3;
 use parking_lot::Mutex;
@@ -14,24 +14,14 @@ pub struct BoxField {
 }
 
 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!"
-		);
+	pub fn add_to(node: &Arc<Node>, size: Vector3<f32>) {
 		let box_field = BoxField {
-			space: node.spatial.get().unwrap().clone(),
+			space: node.get_aspect::<Spatial>().unwrap().clone(),
 			size: Mutex::new(size.into()),
 		};
 		<BoxField as FieldAspect>::add_node_members(node);
 		<BoxField as BoxFieldAspect>::add_node_members(node);
-		let field = Arc::new(Field::Box(box_field));
-		let _ = node.field.set(field.clone());
-		Ok(field)
+		node.add_aspect(Field::Box(box_field));
 	}
 
 	pub fn set_size(&self, size: Vector3<f32>) {
@@ -60,7 +50,8 @@ impl BoxFieldAspect for BoxField {
 		_calling_client: Arc<Client>,
 		size: mint::Vector3<f32>,
 	) -> Result<()> {
-		let Field::Box(this_field) = &*get_field(&node)? else {
+		let this_field = node.get_aspect::<Field>()?;
+		let Field::Box(this_field) = &*this_field else {
 			return Ok(());
 		};
 		this_field.set_size(size.into());

src/nodes/fields/cylinder.rs

@@ -1,8 +1,8 @@
-use super::{get_field, CylinderFieldAspect, Field, FieldTrait, Node};
+use super::{CylinderFieldAspect, Field, FieldTrait, Node};
 use crate::core::client::Client;
 use crate::nodes::fields::FieldAspect;
 use crate::nodes::spatial::Spatial;
-use color_eyre::eyre::{ensure, Result};
+use color_eyre::eyre::Result;
 use glam::{swizzles::*, vec2, Vec3A};
 use portable_atomic::AtomicF32;
 
@@ -16,24 +16,15 @@ pub struct CylinderField {
 }
 
 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!"
-		);
+	pub fn add_to(node: &Arc<Node>, length: f32, radius: f32) {
 		let cylinder_field = CylinderField {
-			space: node.spatial.get().unwrap().clone(),
+			space: node.get_aspect::<Spatial>().unwrap().clone(),
 			length: AtomicF32::new(length.abs()),
 			radius: AtomicF32::new(radius.abs()),
 		};
 		<CylinderField as FieldAspect>::add_node_members(node);
 		<CylinderField as CylinderFieldAspect>::add_node_members(node);
-		let _ = node.field.set(Arc::new(Field::Cylinder(cylinder_field)));
-		Ok(())
+		node.add_aspect(Field::Cylinder(cylinder_field));
 	}
 
 	pub fn set_size(&self, length: f32, radius: f32) {
@@ -60,7 +51,8 @@ impl CylinderFieldAspect for CylinderField {
 		length: f32,
 		radius: f32,
 	) -> Result<()> {
-		let Field::Cylinder(this_field) = &*get_field(&node)? else {
+		let this_field = node.get_aspect::<Field>()?;
+		let Field::Cylinder(this_field) = &*this_field else {
 			return Ok(());
 		};
 		this_field.set_size(length, radius);

src/nodes/fields/mod.rs

@@ -9,8 +9,8 @@ use self::sphere::SphereField;
 use self::torus::TorusField;
 
 use super::alias::AliasInfo;
-use super::spatial::{get_spatial, Spatial};
-use super::Node;
+use super::spatial::Spatial;
+use super::{Aspect, Node};
 use crate::core::client::Client;
 use crate::create_interface;
 use crate::nodes::spatial::Transform;
@@ -30,7 +30,7 @@ pub static FIELD_ALIAS_INFO: Lazy<AliasInfo> = Lazy::new(|| AliasInfo {
 
 stardust_xr_server_codegen::codegen_field_protocol!();
 
-pub trait FieldTrait {
+pub trait FieldTrait: Send + Sync + 'static {
 	fn spatial_ref(&self) -> &Spatial;
 
 	fn local_distance(&self, p: Vec3A) -> f32;
@@ -114,9 +114,9 @@ impl<Fi: FieldTrait + 'static> FieldAspect for Fi {
 		space: Arc<Node>,
 		point: mint::Vector3<f32>,
 	) -> Result<f32> {
-		let reference_space = get_spatial(&space, "Reference space")?;
-		let this_field = node.field.get().unwrap();
-		Ok(this_field.distance(reference_space.as_ref(), point.into()))
+		let reference_space = space.get_aspect::<Spatial>()?;
+		let this_field = node.get_aspect::<Field>()?;
+		Ok((*this_field).distance(reference_space.as_ref(), point.into()))
 	}
 
 	async fn normal(
@@ -125,8 +125,8 @@ impl<Fi: FieldTrait + 'static> FieldAspect for Fi {
 		space: Arc<Node>,
 		point: mint::Vector3<f32>,
 	) -> Result<Vector3<f32>> {
-		let reference_space = get_spatial(&space, "Reference space")?;
-		let this_field = node.field.get().unwrap();
+		let reference_space = space.get_aspect::<Spatial>()?;
+		let this_field = node.get_aspect::<Field>()?;
 		Ok(this_field
 			.normal(reference_space.as_ref(), point.into(), 0.001)
 			.into())
@@ -138,8 +138,8 @@ impl<Fi: FieldTrait + 'static> FieldAspect for Fi {
 		space: Arc<Node>,
 		point: mint::Vector3<f32>,
 	) -> Result<Vector3<f32>> {
-		let reference_space = get_spatial(&space, "Reference space")?;
-		let this_field = node.field.get().unwrap();
+		let reference_space = space.get_aspect::<Spatial>()?;
+		let this_field = node.get_aspect::<Field>()?;
 		Ok(this_field
 			.closest_point(reference_space.as_ref(), point.into(), 0.001)
 			.into())
@@ -152,12 +152,12 @@ impl<Fi: FieldTrait + 'static> FieldAspect for Fi {
 		ray_origin: mint::Vector3<f32>,
 		ray_direction: mint::Vector3<f32>,
 	) -> Result<RayMarchResult> {
-		let reference_space = get_spatial(&space, "Reference space")?;
-		let this_field = node.field.get().unwrap();
+		let reference_space = space.get_aspect::<Spatial>()?;
+		let this_field = node.get_aspect::<Field>()?;
 		Ok(this_field.ray_march(Ray {
 			origin: ray_origin.into(),
 			direction: ray_direction.into(),
-			space: reference_space,
+			space: reference_space.clone(),
 		}))
 	}
 }
@@ -183,6 +183,9 @@ pub enum Field {
 	Sphere(SphereField),
 	Torus(TorusField),
 }
+impl Aspect for Field {
+	const NAME: &'static str = "Field";
+}
 impl Deref for Field {
 	type Target = dyn FieldTrait;
 	fn deref(&self) -> &Self::Target {
@@ -194,6 +197,72 @@ impl Deref for Field {
 		}
 	}
 }
+// impl FieldTrait for Field {
+// 	fn spatial_ref(&self) -> &Spatial {
+// 		match self {
+// 			Field::Box(field) => field.spatial_ref(),
+// 			Field::Cylinder(field) => field.spatial_ref(),
+// 			Field::Sphere(field) => field.spatial_ref(),
+// 			Field::Torus(field) => field.spatial_ref(),
+// 		}
+// 	}
+// 	fn local_distance(&self, p: Vec3A) -> f32 {
+// 		match self {
+// 			Field::Box(field) => field.local_distance(p),
+// 			Field::Cylinder(field) => field.local_distance(p),
+// 			Field::Sphere(field) => field.local_distance(p),
+// 			Field::Torus(field) => field.local_distance(p),
+// 		}
+// 	}
+// 	fn local_normal(&self, p: Vec3A, r: f32) -> Vec3A {
+// 		match self {
+// 			Field::Box(field) => field.local_normal(p, r),
+// 			Field::Cylinder(field) => field.local_normal(p, r),
+// 			Field::Sphere(field) => field.local_normal(p, r),
+// 			Field::Torus(field) => field.local_normal(p, r),
+// 		}
+// 	}
+// 	fn local_closest_point(&self, p: Vec3A, r: f32) -> Vec3A {
+// 		match self {
+// 			Field::Box(field) => field.local_closest_point(p, r),
+// 			Field::Cylinder(field) => field.local_closest_point(p, r),
+// 			Field::Sphere(field) => field.local_closest_point(p, r),
+// 			Field::Torus(field) => field.local_closest_point(p, r),
+// 		}
+// 	}
+// 	fn distance(&self, reference_space: &Spatial, p: Vec3A) -> f32 {
+// 		match self {
+// 			Field::Box(field) => field.distance(reference_space, p),
+// 			Field::Cylinder(field) => field.distance(reference_space, p),
+// 			Field::Sphere(field) => field.distance(reference_space, p),
+// 			Field::Torus(field) => field.distance(reference_space, p),
+// 		}
+// 	}
+// 	fn normal(&self, reference_space: &Spatial, p: Vec3A, r: f32) -> Vec3A {
+// 		match self {
+// 			Field::Box(field) => field.normal(reference_space, p, r),
+// 			Field::Cylinder(field) => field.normal(reference_space, p, r),
+// 			Field::Sphere(field) => field.normal(reference_space, p, r),
+// 			Field::Torus(field) => field.normal(reference_space, p, r),
+// 		}
+// 	}
+// 	fn closest_point(&self, reference_space: &Spatial, p: Vec3A, r: f32) -> Vec3A {
+// 		match self {
+// 			Field::Box(field) => field.closest_point(reference_space, p, r),
+// 			Field::Cylinder(field) => field.closest_point(reference_space, p, r),
+// 			Field::Sphere(field) => field.closest_point(reference_space, p, r),
+// 			Field::Torus(field) => field.closest_point(reference_space, p, r),
+// 		}
+// 	}
+// 	fn ray_march(&self, ray: Ray) -> RayMarchResult {
+// 		match self {
+// 			Field::Box(field) => field.ray_march(ray),
+// 			Field::Cylinder(field) => field.ray_march(ray),
+// 			Field::Sphere(field) => field.ray_march(ray),
+// 			Field::Torus(field) => field.ray_march(ray),
+// 		}
+// 	}
+// }
 
 create_interface!(FieldInterface, FieldInterfaceAspect, "/field");
 pub struct FieldInterface;
@@ -207,7 +276,7 @@ impl FieldInterfaceAspect for FieldInterface {
 		size: mint::Vector3<f32>,
 	) -> Result<()> {
 		let transform = transform.to_mat4(true, true, false);
-		let parent = get_spatial(&parent, "Spatial parent")?;
+		let parent = parent.get_aspect::<Spatial>()?;
 		let node = Node::create_parent_name(
 			&calling_client,
 			Self::CREATE_BOX_FIELD_PARENT_PATH,
@@ -215,8 +284,8 @@ impl FieldInterfaceAspect for FieldInterface {
 			true,
 		)
 		.add_to_scenegraph()?;
-		Spatial::add_to(&node, Some(parent), transform, false)?;
-		BoxField::add_to(&node, size)?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		BoxField::add_to(&node, size);
 		Ok(())
 	}
 
@@ -230,7 +299,7 @@ impl FieldInterfaceAspect for FieldInterface {
 		radius: f32,
 	) -> Result<()> {
 		let transform = transform.to_mat4(true, true, false);
-		let parent = get_spatial(&parent, "Spatial parent")?;
+		let parent = parent.get_aspect::<Spatial>()?;
 		let node = Node::create_parent_name(
 			&calling_client,
 			Self::CREATE_CYLINDER_FIELD_PARENT_PATH,
@@ -238,8 +307,8 @@ impl FieldInterfaceAspect for FieldInterface {
 			true,
 		)
 		.add_to_scenegraph()?;
-		Spatial::add_to(&node, Some(parent), transform, false)?;
-		CylinderField::add_to(&node, length, radius)?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		CylinderField::add_to(&node, length, radius);
 		Ok(())
 	}
 
@@ -251,7 +320,7 @@ impl FieldInterfaceAspect for FieldInterface {
 		position: mint::Vector3<f32>,
 		radius: f32,
 	) -> Result<()> {
-		let parent = get_spatial(&parent, "Spatial parent")?;
+		let parent = parent.get_aspect::<Spatial>()?;
 		let node = Node::create_parent_name(
 			&calling_client,
 			Self::CREATE_SPHERE_FIELD_PARENT_PATH,
@@ -261,11 +330,11 @@ impl FieldInterfaceAspect for FieldInterface {
 		.add_to_scenegraph()?;
 		Spatial::add_to(
 			&node,
-			Some(parent),
+			Some(parent.clone()),
 			Mat4::from_translation(position.into()),
 			false,
-		)?;
-		SphereField::add_to(&node, radius)?;
+		);
+		SphereField::add_to(&node, radius);
 		Ok(())
 	}
 
@@ -279,7 +348,7 @@ impl FieldInterfaceAspect for FieldInterface {
 		radius_b: f32,
 	) -> Result<()> {
 		let transform = transform.to_mat4(true, true, false);
-		let parent = get_spatial(&parent, "Spatial parent")?;
+		let parent = parent.get_aspect::<Spatial>()?;
 		let node = Node::create_parent_name(
 			&calling_client,
 			Self::CREATE_TORUS_FIELD_PARENT_PATH,
@@ -287,18 +356,12 @@ impl FieldInterfaceAspect for FieldInterface {
 			true,
 		)
 		.add_to_scenegraph()?;
-		Spatial::add_to(&node, Some(parent), transform, false)?;
-		TorusField::add_to(&node, radius_a, radius_b)?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, false);
+		TorusField::add_to(&node, radius_a, radius_b);
 		Ok(())
 	}
 }
 
 pub fn find_field(client: &Client, path: &str) -> Result<Arc<Field>> {
-	client
-		.get_node("Field", path)?
-		.get_aspect("Field", "info", |n| &n.field)
-		.cloned()
-}
-pub fn get_field(node: &Node) -> Result<Arc<Field>> {
-	node.get_aspect("Field", "info", |n| &n.field).cloned()
+	client.get_node("Field", path)?.get_aspect::<Field>()
 }

src/nodes/fields/sphere.rs

@@ -1,8 +1,8 @@
-use super::{get_field, Field, FieldTrait, Node, SphereFieldAspect};
+use super::{Field, FieldTrait, Node, SphereFieldAspect};
 use crate::core::client::Client;
 use crate::nodes::fields::FieldAspect;
 use crate::nodes::spatial::Spatial;
-use color_eyre::eyre::{ensure, Result};
+use color_eyre::eyre::Result;
 use glam::Vec3A;
 use portable_atomic::AtomicF32;
 use std::sync::atomic::Ordering;
@@ -14,23 +14,14 @@ pub struct SphereField {
 }
 
 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!"
-		);
+	pub fn add_to(node: &Arc<Node>, radius: f32) {
 		let sphere_field = SphereField {
-			space: node.spatial.get().unwrap().clone(),
+			space: node.get_aspect::<Spatial>().unwrap().clone(),
 			radius: AtomicF32::new(radius),
 		};
 		<SphereField as FieldAspect>::add_node_members(node);
 		<SphereField as SphereFieldAspect>::add_node_members(node);
-		let _ = node.field.set(Arc::new(Field::Sphere(sphere_field)));
-		Ok(())
+		node.add_aspect(Field::Sphere(sphere_field));
 	}
 
 	pub fn set_radius(&self, radius: f32) {
@@ -54,7 +45,8 @@ impl FieldTrait for SphereField {
 }
 impl SphereFieldAspect for SphereField {
 	fn set_radius(node: Arc<Node>, _calling_client: Arc<Client>, radius: f32) -> Result<()> {
-		let Field::Sphere(this_field) = &*get_field(&node)? else {
+		let this_field = node.get_aspect::<Field>()?;
+		let Field::Sphere(this_field) = &*this_field else {
 			return Ok(());
 		};
 		this_field.set_radius(radius);

src/nodes/fields/torus.rs

@@ -1,12 +1,10 @@
-use super::{get_field, Field, FieldTrait, Node, TorusFieldAspect};
+use super::{Field, FieldTrait, Node, TorusFieldAspect};
 use crate::core::client::Client;
 use crate::nodes::fields::FieldAspect;
 use crate::nodes::spatial::Spatial;
-use crate::nodes::Message;
-use color_eyre::eyre::{ensure, Result};
+use color_eyre::eyre::Result;
 use glam::{swizzles::*, vec2, Vec3A};
 use portable_atomic::AtomicF32;
-use stardust_xr::schemas::flex::deserialize;
 
 use std::sync::atomic::Ordering;
 use std::sync::Arc;
@@ -18,45 +16,21 @@ pub struct TorusField {
 }
 
 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!"
-		);
+	pub fn add_to(node: &Arc<Node>, radius_a: f32, radius_b: f32) {
 		let torus_field = TorusField {
-			space: node.spatial.get().unwrap().clone(),
+			space: node.get_aspect::<Spatial>().unwrap().clone(),
 			radius_a: AtomicF32::new(radius_a.abs()),
 			radius_b: AtomicF32::new(radius_b.abs()),
 		};
 		<TorusField as FieldAspect>::add_node_members(node);
 		<TorusField as TorusFieldAspect>::add_node_members(node);
-		node.add_local_signal("set_size", TorusField::set_size_flex);
-		let _ = node.field.set(Arc::new(Field::Torus(torus_field)));
-		Ok(())
+		node.add_aspect(Field::Torus(torus_field));
 	}
 
 	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: Arc<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 {
@@ -76,7 +50,8 @@ impl TorusFieldAspect for TorusField {
 		radius_a: f32,
 		radius_b: f32,
 	) -> Result<()> {
-		let Field::Torus(this_field) = &*get_field(&node)? else {
+		let this_field = node.get_aspect::<Field>()?;
+		let Field::Torus(this_field) = &*this_field else {
 			return Ok(());
 		};
 		this_field.set_size(radius_a, radius_b);

src/nodes/hmd.rs

@@ -14,16 +14,13 @@ lazy_static::lazy_static! {
 
 fn create() -> Arc<Node> {
 	let node = Arc::new(Node::create_parent_name(&INTERNAL_CLIENT, "", "hmd", false));
-	Spatial::add_to(&node, None, Mat4::IDENTITY, false).expect("Unable to make spatial for HMD");
+	Spatial::add_to(&node, None, Mat4::IDENTITY, false);
 
 	node
 }
 
 pub fn frame(sk: &impl StereoKitMultiThread) {
-	let spatial = HMD
-		.spatial
-		.get()
-		.expect("Unable to get spatial to update HMD");
+	let spatial = HMD.get_aspect::<Spatial>().unwrap();
 	let hmd_pose = sk.input_head();
 	*spatial.transform.lock() = Mat4::from_scale_rotation_translation(
 		vec3(1.0, 1.0, 1.0),

src/nodes/input/mod.rs

@@ -9,12 +9,12 @@ use self::tip::Tip;
 use super::{
 	alias::{Alias, AliasInfo},
 	fields::{find_field, Field, FIELD_ALIAS_INFO},
-	spatial::{find_spatial_parent, parse_transform, Spatial},
-	Message, Node,
+	spatial::{parse_transform, Spatial},
+	Aspect, Message, Node,
 };
 use crate::core::{client::Client, node_collections::LifeLinkedNodeMap};
 use crate::{core::registry::Registry, nodes::spatial::Transform};
-use color_eyre::eyre::{ensure, Result};
+use color_eyre::eyre::Result;
 use glam::Mat4;
 use once_cell::sync::OnceCell;
 use parking_lot::Mutex;
@@ -76,11 +76,6 @@ impl InputMethod {
 		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);
@@ -89,7 +84,7 @@ impl InputMethod {
 			node: Arc::downgrade(node),
 			uid: node.uid.clone(),
 			enabled: Mutex::new(true),
-			spatial: node.spatial.get().unwrap().clone(),
+			spatial: node.get_aspect::<Spatial>().unwrap().clone(),
 			specialization: Mutex::new(specialization),
 			captures: Registry::new(),
 			datamap: Mutex::new(datamap),
@@ -101,12 +96,11 @@ impl InputMethod {
 			method.make_alias(&handler);
 		}
 		let method = INPUT_METHOD_REGISTRY.add(method);
-		let _ = node.input_method.set(method.clone());
+		node.add_aspect_raw(method.clone());
 		Ok(method)
 	}
 	fn get(node: &Node) -> Result<Arc<Self>> {
-		node.get_aspect("Input Method", "input method", |n| &n.input_method)
-			.cloned()
+		node.get_aspect::<Self>()
 	}
 
 	fn capture_flex(node: Arc<Node>, calling_client: Arc<Client>, message: Message) -> Result<()> {
@@ -242,6 +236,9 @@ impl InputMethod {
 		let _ = tx_node.send_remote_signal("handler_destroyed", data);
 	}
 }
+impl Aspect for InputMethod {
+	const NAME: &'static str = "InputMethod";
+}
 impl Drop for InputMethod {
 	fn drop(&mut self) {
 		INPUT_METHOD_REGISTRY.remove(self);
@@ -294,16 +291,11 @@ pub struct InputHandler {
 }
 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(),
+			spatial: node.get_aspect::<Spatial>().unwrap().clone(),
 			field: field.clone(),
 			method_aliases: LifeLinkedNodeMap::default(),
 		};
@@ -312,15 +304,11 @@ impl InputHandler {
 			method.handle_new_handler(&handler);
 		}
 		let handler = INPUT_HANDLER_REGISTRY.add(handler);
-		let _ = node.input_handler.set(handler);
+		node.add_aspect_raw(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()
+		client.get_node("Input Handler", path)?.get_aspect::<Self>()
 	}
 
 	#[instrument(level = "debug", skip(self, distance_link))]
@@ -337,6 +325,9 @@ impl InputHandler {
 		let _ = node.send_remote_signal("input", distance_link.serialize(order, captured, datamap));
 	}
 }
+impl Aspect for InputHandler {
+	const NAME: &'static str = "InputHandler";
+}
 impl PartialEq for InputHandler {
 	fn eq(&self, other: &Self) -> bool {
 		self.spatial == other.spatial
@@ -372,13 +363,15 @@ pub fn create_input_handler_flex(
 		field_path: &'a str,
 	}
 	let info: CreateInputHandlerInfo = deserialize(message.as_ref())?;
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
+	let parent = calling_client
+		.get_node("Spatial parent", info.parent_path)?
+		.get_aspect::<Spatial>()?;
 	let transform = parse_transform(info.transform, true, true, true);
 	let field = find_field(&calling_client, info.field_path)?;
 
 	let node = Node::create_parent_name(&calling_client, "/input/handler", info.name, true)
 		.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
+	Spatial::add_to(&node, Some(parent.clone()), transform, false);
 	InputHandler::add_to(&node, &field)?;
 	Ok(())
 }
@@ -441,7 +434,7 @@ pub fn process_input() {
 					.handler
 					.method_aliases
 					.get(&(Arc::as_ptr(&distance_link.method) as usize))
-					.and_then(|a| a.alias.get().cloned())
+					.and_then(|a| a.get_aspect::<Alias>().ok())
 				{
 					method_alias.enabled.store(true, Ordering::Release);
 				}

src/nodes/input/pointer.rs

@@ -2,7 +2,7 @@ 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, Transform};
+use crate::nodes::spatial::{parse_transform, Spatial, Transform};
 use crate::nodes::{Message, Node};
 use glam::{vec3, Mat4};
 use serde::Deserialize;
@@ -79,11 +79,13 @@ pub fn create_pointer_flex(
 	}
 	let info: CreatePointerInfo = deserialize(message.as_ref())?;
 	let node = Node::create_parent_name(&calling_client, "/input/method/pointer", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
+	let parent = calling_client
+		.get_node("Spatial parent", info.parent_path)?
+		.get_aspect::<Spatial>()?;
 	let transform = parse_transform(info.transform, true, true, false);
 
 	let node = node.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
+	Spatial::add_to(&node, Some(parent.clone()), transform, false);
 	InputMethod::add_to(
 		&node,
 		InputType::Pointer(Pointer),

src/nodes/input/tip.rs

@@ -2,7 +2,7 @@ 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, Transform};
+use crate::nodes::spatial::{parse_transform, Spatial, Transform};
 use crate::nodes::{Message, Node};
 use color_eyre::eyre::Result;
 use glam::{vec3a, Mat4};
@@ -19,7 +19,8 @@ pub struct Tip {
 }
 impl Tip {
 	fn set_radius(node: Arc<Node>, _calling_client: Arc<Client>, message: Message) -> Result<()> {
-		if let InputType::Tip(tip) = &mut *node.input_method.get().unwrap().specialization.lock() {
+		let input_method = node.get_aspect::<InputMethod>()?;
+		if let InputType::Tip(tip) = &mut *input_method.specialization.lock() {
 			tip.radius = deserialize(message.as_ref())?;
 		}
 		Ok(())
@@ -61,11 +62,13 @@ pub fn create_tip_flex(
 	}
 	let info: CreateTipInfo = deserialize(message.as_ref())?;
 	let node = Node::create_parent_name(&calling_client, "/input/method/tip", info.name, true);
-	let parent = find_spatial_parent(&calling_client, info.parent_path)?;
+	let parent = calling_client
+		.get_node("Spatial parent", info.parent_path)?
+		.get_aspect::<Spatial>()?;
 	let transform = parse_transform(info.transform, true, true, false);
 
 	let node = node.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(parent), transform, false)?;
+	Spatial::add_to(&node, Some(parent.clone()), transform, false);
 	InputMethod::add_to(
 		&node,
 		InputType::Tip(Tip {

src/nodes/items/camera.rs

@@ -6,9 +6,9 @@ use crate::{
 		scenegraph::MethodResponseSender,
 	},
 	nodes::{
-		drawable::{model::ModelPart, shaders::UNLIT_SHADER_BYTES, Drawable},
+		drawable::{model::ModelPart, shaders::UNLIT_SHADER_BYTES},
 		items::TypeInfo,
-		spatial::{find_spatial_parent, parse_transform, Spatial, Transform},
+		spatial::{parse_transform, Spatial, Transform},
 		Message, Node,
 	},
 };
@@ -58,7 +58,7 @@ impl CameraItem {
 			nanoid!(),
 			&ITEM_TYPE_INFO_CAMERA,
 			ItemType::Camera(CameraItem {
-				space: node.spatial.get().unwrap().clone(),
+				space: node.get_aspect::<Spatial>().unwrap().clone(),
 				frame_info: Mutex::new(FrameInfo {
 					proj_matrix,
 					px_size,
@@ -83,7 +83,8 @@ impl CameraItem {
 		response: MethodResponseSender,
 	) {
 		response.wrap_sync(move || {
-			let ItemType::Camera(_camera) = &node.item.get().unwrap().specialization else {
+			let ItemType::Camera(_camera) = &node.get_aspect::<Item>().unwrap().specialization
+			else {
 				return Err(eyre!("Wrong item type?"));
 			};
 			Ok(serialize(())?.into())
@@ -95,18 +96,14 @@ impl CameraItem {
 		calling_client: Arc<Client>,
 		message: Message,
 	) -> Result<()> {
-		let ItemType::Camera(camera) = &node.item.get().unwrap().specialization else {
+		let ItemType::Camera(camera) = &node.get_aspect::<Item>().unwrap().specialization else {
 			bail!("Wrong item type?")
 		};
 		let model_part_node =
 			calling_client.get_node("Model part", deserialize(&message.data).unwrap())?;
-		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_to.add_raw(model_part);
-		camera.apply_to.add_raw(model_part);
+		let model_part = model_part_node.get_aspect::<ModelPart>()?;
+		camera.applied_to.add_raw(&model_part);
+		camera.apply_to.add_raw(&model_part);
 		Ok(())
 	}
 
@@ -178,16 +175,19 @@ pub(super) fn create_camera_item_flex(
 	}
 	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 space = calling_client
+		.get_node("Spatial parent", info.parent_path)?
+		.get_aspect::<Spatial>()?;
 	let transform = parse_transform(info.transform, true, true, false);
 
 	let node = Node::create_parent_name(&INTERNAL_CLIENT, &parent_name, info.name, false)
 		.add_to_scenegraph()?;
-	Spatial::add_to(&node, None, transform * space.global_transform(), false)?;
+	Spatial::add_to(&node, None, transform * space.global_transform(), false);
 	CameraItem::add_to(&node, info.proj_matrix.into(), info.px_size);
-	node.item
-		.get()
-		.unwrap()
-		.make_alias_named(&calling_client, &parent_name, info.name)?;
+	node.get_aspect::<Item>().unwrap().make_alias_named(
+		&calling_client,
+		&parent_name,
+		info.name,
+	)?;
 	Ok(())
 }

src/nodes/items/environment.rs

@@ -7,7 +7,7 @@ use crate::{
 	},
 	nodes::{
 		items::TypeInfo,
-		spatial::{find_spatial_parent, parse_transform, Spatial, Transform},
+		spatial::{parse_transform, Spatial, Transform},
 		Message, Node,
 	},
 };
@@ -51,7 +51,8 @@ impl EnvironmentItem {
 		response: MethodResponseSender,
 	) {
 		response.wrap_sync(move || {
-			let ItemType::Environment(environment_item) = &node.item.get().unwrap().specialization
+			let ItemType::Environment(environment_item) =
+				&node.get_aspect::<Item>().unwrap().specialization
 			else {
 				return Err(eyre!("Wrong item type?"));
 			};
@@ -78,16 +79,19 @@ pub(super) fn create_environment_item_flex(
 	}
 	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 space = calling_client
+		.get_node("Spatial parent", info.parent_path)?
+		.get_aspect::<Spatial>()?;
 	let transform = parse_transform(info.transform, true, true, false);
 
 	let node = Node::create_parent_name(&INTERNAL_CLIENT, &parent_name, info.name, false)
 		.add_to_scenegraph()?;
-	Spatial::add_to(&node, None, transform * space.global_transform(), false)?;
+	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)?;
+	node.get_aspect::<Item>().unwrap().make_alias_named(
+		&calling_client,
+		&parent_name,
+		info.name,
+	)?;
 	Ok(())
 }

src/nodes/items/mod.rs

@@ -6,8 +6,8 @@ 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 super::spatial::{parse_transform, Spatial};
+use super::{Alias, Aspect, Message, Node};
 use crate::core::client::Client;
 use crate::core::node_collections::LifeLinkedNodeMap;
 use crate::core::registry::Registry;
@@ -108,7 +108,7 @@ impl Item {
 		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
@@ -161,12 +161,15 @@ impl Item {
 		_calling_client: Arc<Client>,
 		_message: Message,
 	) -> Result<()> {
-		let item = node.get_aspect("Item", "item", |n| &n.item)?;
-		release(item);
+		let item = node.get_aspect::<Item>()?;
+		release(&item);
 
 		Ok(())
 	}
 }
+impl Aspect for Item {
+	const NAME: &'static str = "Item";
+}
 impl Drop for Item {
 	fn drop(&mut self) {
 		self.type_info.items.remove(self);
@@ -224,7 +227,7 @@ impl ItemUI {
 			acceptor_field_aliases: Default::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);
@@ -314,6 +317,9 @@ impl ItemUI {
 		self.acceptor_field_aliases.remove(&acceptor.uid);
 	}
 }
+impl Aspect for ItemUI {
+	const NAME: &'static str = "Item";
+}
 impl Drop for ItemUI {
 	fn drop(&mut self) {
 		*self.type_info.ui.lock() = Weak::new();
@@ -342,7 +348,7 @@ impl ItemAcceptor {
 		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);
 	}
 
 	fn capture_flex(node: Arc<Node>, calling_client: Arc<Client>, message: Message) -> Result<()> {
@@ -350,11 +356,11 @@ impl ItemAcceptor {
 			return Ok(());
 		}
 
-		let acceptor = node.item_acceptor.get().unwrap();
+		let acceptor = node.get_aspect::<ItemAcceptor>().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);
+		let item = item_node.get_aspect::<Item>()?;
+		capture(&item, &acceptor);
 
 		Ok(())
 	}
@@ -413,6 +419,9 @@ impl ItemAcceptor {
 		let _ = node.send_remote_signal("release", message);
 	}
 }
+impl Aspect for ItemAcceptor {
+	const NAME: &'static str = "ItemAcceptor";
+}
 impl Drop for ItemAcceptor {
 	fn drop(&mut self) {
 		self.type_info.acceptors.remove(self);
@@ -477,7 +486,9 @@ fn create_item_acceptor_flex(
 		item_type: &'a str,
 	}
 	let info: CreateItemAcceptorInfo = deserialize(message.as_ref())?;
-	let space = find_spatial_parent(&calling_client, info.parent_path)?;
+	let space = calling_client
+		.get_node("Reference space", info.parent_path)?
+		.get_aspect::<Spatial>()?;
 	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)?;
@@ -489,7 +500,7 @@ fn create_item_acceptor_flex(
 		true,
 	)
 	.add_to_scenegraph()?;
-	Spatial::add_to(&node, Some(space), transform, false)?;
+	Spatial::add_to(&node, Some(space.clone()), transform, false);
 	ItemAcceptor::add_to(&node, type_info, field);
 	Ok(())
 }

src/nodes/items/panel.rs

@@ -4,13 +4,13 @@ use crate::{
 		registry::Registry,
 	},
 	nodes::{
-		drawable::{model::ModelPart, Drawable},
+		drawable::model::ModelPart,
 		items::{Item, ItemType, TypeInfo},
 		spatial::Spatial,
 		Message, Node,
 	},
 };
-use color_eyre::eyre::{bail, eyre, Result};
+use color_eyre::eyre::{eyre, Result};
 use glam::Mat4;
 use lazy_static::lazy_static;
 use mint::Vector2;
@@ -203,7 +203,7 @@ pub trait Backend: Send + Sync + 'static {
 }
 
 pub fn panel_item_from_node(node: &Node) -> Option<Arc<dyn PanelItemTrait>> {
-	let ItemType::Panel(panel_item) = &node.item.get()?.specialization else {
+	let ItemType::Panel(panel_item) = &node.get_aspect::<Item>().ok()?.specialization else {
 		return None;
 	};
 	Some(panel_item.clone())
@@ -231,7 +231,7 @@ impl<B: Backend + ?Sized> PanelItem<B> {
 		let node = Node::create_parent_name(&INTERNAL_CLIENT, "/item/panel/item", &uid, true)
 			.add_to_scenegraph()
 			.unwrap();
-		let spatial = Spatial::add_to(&node, None, Mat4::IDENTITY, false).unwrap();
+		let spatial = Spatial::add_to(&node, None, Mat4::IDENTITY, false);
 		if let Some(startup_settings) = &startup_settings {
 			spatial.set_local_transform(startup_settings.root);
 		}
@@ -402,12 +402,10 @@ impl<B: Backend + ?Sized> PanelItem<B> {
 			.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")
-		};
+		let model_part = model_node.get_aspect::<ModelPart>()?;
 		debug!(?info, "Apply surface material");
 
-		panel_item.apply_surface_material(info.surface, model_part);
+		panel_item.apply_surface_material(info.surface, &model_part);
 
 		Ok(())
 	}

src/nodes/mod.rs

@@ -11,7 +11,6 @@ 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;
@@ -19,6 +18,7 @@ use serde::{de::DeserializeOwned, Serialize};
 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::{Arc, Weak};
@@ -29,14 +29,6 @@ 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;
 
 #[derive(Default)]
 pub struct Message {
@@ -71,33 +63,9 @@ pub struct Node {
 	// trailing_slash_pos: usize,
 	local_signals: Mutex<FxHashMap<String, Signal>>,
 	local_methods: Mutex<FxHashMap<String, Method>>,
-	destroyable: bool,
-
-	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>>,
+	aspects: Aspects,
+	destroyable: bool,
 }
 impl Node {
 	pub fn get_client(&self) -> Option<Arc<Client>> {
@@ -131,23 +99,9 @@ impl Node {
 			// trailing_slash_pos: parent.len(),
 			local_signals: Default::default(),
 			local_methods: Default::default(),
+			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 as NodeAspect>::add_node_members(&node);
 		node
@@ -186,13 +140,14 @@ impl Node {
 		self.local_methods.lock().insert(name.to_string(), method);
 	}
 
-	pub fn get_aspect<F, T>(&self, node_name: &str, aspect_type: &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 add_aspect<A: Aspect>(&self, aspect: A) -> Arc<A> {
+		self.aspects.add(aspect)
+	}
+	pub fn add_aspect_raw<A: Aspect>(&self, aspect: Arc<A>) {
+		self.aspects.add_raw(aspect)
+	}
+	pub fn get_aspect<A: Aspect>(&self) -> Result<Arc<A>> {
+		self.aspects.get()
 	}
 
 	pub fn send_local_signal(
@@ -201,7 +156,7 @@ impl Node {
 		method: &str,
 		message: Message,
 	) -> Result<(), ScenegraphError> {
-		if let Some(alias) = self.alias.get() {
+		if let Ok(alias) = self.get_aspect::<Alias>() {
 			if !alias.info.server_signals.iter().any(|e| e == &method) {
 				return Err(ScenegraphError::SignalNotFound);
 			}
@@ -229,7 +184,7 @@ impl Node {
 		message: Message,
 		response: MethodResponseSender,
 	) {
-		if let Some(alias) = self.alias.get() {
+		if let Ok(alias) = self.get_aspect::<Alias>() {
 			if !alias.info.server_methods.iter().any(|e| e == &method) {
 				response.send(Err(ScenegraphError::MethodNotFound));
 				return;
@@ -327,3 +282,36 @@ impl Drop for Node {
 		// Debug breakpoint
 	}
 }
+
+pub trait Aspect: Any + Send + Sync + 'static {
+	const NAME: &'static str;
+}
+
+#[derive(Default)]
+struct Aspects(Mutex<FxHashMap<TypeId, Arc<dyn Any + Send + Sync + 'static>>>);
+impl Aspects {
+	fn add<A: Aspect>(&self, t: A) -> Arc<A> {
+		let aspect = Arc::new(t);
+		self.add_raw(aspect.clone());
+		aspect
+	}
+	fn add_raw<A: Aspect>(&self, aspect: Arc<A>) {
+		self.0.lock().insert(Self::type_key::<A>(), aspect);
+	}
+	fn get<A: Aspect + Any + Send + Sync + 'static>(&self) -> Result<Arc<A>> {
+		self.0
+			.lock()
+			.get(&Self::type_key::<A>())
+			.and_then(|a| Arc::downcast(a.clone()).ok())
+			.ok_or(eyre!("Couldn't get aspect {}", A::NAME.to_lowercase()))
+	}
+
+	fn type_key<A: 'static>() -> TypeId {
+		TypeId::of::<A>()
+	}
+}
+impl Drop for Aspects {
+	fn drop(&mut self) {
+		self.0.lock().clear()
+	}
+}

src/nodes/root.rs

@@ -90,7 +90,7 @@ impl Root {
 	}
 
 	pub fn set_transform(&self, transform: Mat4) {
-		let spatial = self.node.spatial.get().unwrap();
+		let spatial = self.node.get_aspect::<Spatial>().unwrap();
 		spatial.set_spatial_parent(None).unwrap();
 		spatial.set_local_transform(transform);
 	}

src/nodes/spatial/mod.rs

@@ -1,12 +1,12 @@
 pub mod zone;
 
 use self::zone::Zone;
-use super::fields::get_field;
-use super::Node;
+use super::fields::Field;
+use super::{Aspect, Node};
 use crate::core::client::Client;
 use crate::core::registry::Registry;
 use crate::create_interface;
-use color_eyre::eyre::{ensure, eyre, Result};
+use color_eyre::eyre::{eyre, Result};
 use glam::{vec3a, Mat4, Quat};
 use mint::Vector3;
 use nanoid::nanoid;
@@ -42,7 +42,6 @@ static ZONEABLE_REGISTRY: Registry<Spatial> = Registry::new();
 pub struct Spatial {
 	uid: String,
 	pub(super) node: Weak<Node>,
-	self_ref: Weak<Spatial>,
 	parent: Mutex<Option<Arc<Spatial>>>,
 	old_parent: Mutex<Option<Arc<Spatial>>>,
 	pub(super) transform: Mutex<Mat4>,
@@ -53,10 +52,9 @@ pub struct Spatial {
 
 impl Spatial {
 	pub fn new(node: Weak<Node>, parent: Option<Arc<Spatial>>, transform: Mat4) -> Arc<Self> {
-		Arc::new_cyclic(|self_ref| Spatial {
+		Arc::new(Spatial {
 			uid: nanoid!(),
 			node,
-			self_ref: self_ref.clone(),
 			parent: Mutex::new(parent),
 			old_parent: Mutex::new(None),
 			transform: Mutex::new(transform),
@@ -70,11 +68,7 @@ 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!"
-		);
+	) -> Arc<Spatial> {
 		let spatial = Spatial::new(Arc::downgrade(node), parent.clone(), transform);
 		<Spatial as SpatialAspect>::add_node_members(node);
 		if zoneable {
@@ -83,8 +77,9 @@ impl Spatial {
 		if let Some(parent) = parent {
 			parent.children.add_raw(&spatial);
 		}
-		let _ = node.spatial.set(spatial.clone());
-		Ok(spatial)
+		<Spatial as SpatialAspect>::add_node_members(node);
+		node.add_aspect_raw(spatial.clone());
+		spatial
 	}
 
 	pub fn node(&self) -> Option<Arc<Node>> {
@@ -190,23 +185,21 @@ 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: Option<&Arc<Spatial>>) {
 		if let Some(parent) = self.get_parent() {
-			parent.children.remove(self);
+			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() = new_parent.cloned();
 	}
 
-	pub fn set_spatial_parent(&self, parent: Option<Arc<Spatial>>) -> Result<()> {
+	pub fn set_spatial_parent(self: &Arc<Self>, parent: Option<&Arc<Spatial>>) -> Result<()> {
 		let is_ancestor = parent
 			.as_ref()
-			.map(|parent| self.is_ancestor_of(parent.clone()))
+			.map(|parent| self.is_ancestor_of((*parent).clone()))
 			.unwrap_or(false);
 		if is_ancestor {
 			return Err(eyre!("Setting spatial parent would cause a loop"));
@@ -215,18 +208,21 @@ impl Spatial {
 
 		Ok(())
 	}
-	pub fn set_spatial_parent_in_place(&self, parent: Option<Arc<Spatial>>) -> Result<()> {
+	pub fn set_spatial_parent_in_place(
+		self: &Arc<Self>,
+		parent: Option<&Arc<Spatial>>,
+	) -> Result<()> {
 		let is_ancestor = parent
 			.as_ref()
-			.map(|parent| self.is_ancestor_of(parent.clone()))
+			.map(|parent| self.is_ancestor_of((*parent).clone()))
 			.unwrap_or(false);
 		if is_ancestor {
 			return Err(eyre!("Setting spatial parent would cause a loop"));
 		}
 
 		self.set_local_transform(Spatial::space_to_space_matrix(
-			Some(self),
-			parent.as_deref(),
+			Some(&self),
+			parent.map(AsRef::as_ref),
 		));
 		self.set_parent(parent);
 
@@ -242,15 +238,15 @@ impl Spatial {
 			.unwrap_or(f32::MAX)
 	}
 }
+impl Aspect for Spatial {
+	const NAME: &'static str = "Spatial";
+}
 impl SpatialAspect for Spatial {
 	async fn get_local_bounding_box(
 		node: Arc<Node>,
 		_calling_client: Arc<Client>,
 	) -> Result<BoundingBox> {
-		let this_spatial = node
-			.spatial
-			.get()
-			.ok_or_else(|| eyre!("Node doesn't have a spatial?"))?;
+		let this_spatial = node.get_aspect::<Spatial>()?;
 		let bounds = this_spatial.get_bounding_box();
 
 		Ok(BoundingBox {
@@ -264,11 +260,8 @@ impl SpatialAspect for Spatial {
 		_calling_client: Arc<Client>,
 		relative_to: Arc<Node>,
 	) -> Result<BoundingBox> {
-		let this_spatial = node
-			.spatial
-			.get()
-			.ok_or_else(|| eyre!("Node doesn't have a spatial?"))?;
-		let relative_spatial = get_spatial(&relative_to, "Relative node")?;
+		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 bounds = Bounds {
@@ -295,11 +288,8 @@ impl SpatialAspect for Spatial {
 		_calling_client: Arc<Client>,
 		relative_to: Arc<Node>,
 	) -> Result<Transform> {
-		let this_spatial = node
-			.spatial
-			.get()
-			.ok_or_else(|| eyre!("Node doesn't have a spatial?"))?;
-		let relative_spatial = get_spatial(&relative_to, "Relative node")?;
+		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()),
@@ -319,10 +309,7 @@ impl SpatialAspect for Spatial {
 		_calling_client: Arc<Client>,
 		transform: Transform,
 	) -> Result<()> {
-		let this_spatial = node
-			.spatial
-			.get()
-			.ok_or_else(|| eyre!("Node doesn't have a spatial?"))?;
+		let this_spatial = node.get_aspect::<Spatial>()?;
 		this_spatial.set_local_transform_components(None, transform);
 		Ok(())
 	}
@@ -332,11 +319,8 @@ impl SpatialAspect for Spatial {
 		relative_to: Arc<Node>,
 		transform: Transform,
 	) -> Result<()> {
-		let this_spatial = node
-			.spatial
-			.get()
-			.ok_or_else(|| eyre!("Node doesn't have a spatial?"))?;
-		let relative_spatial = get_spatial(&relative_to, "Relative node")?;
+		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(())
@@ -347,13 +331,10 @@ impl SpatialAspect for Spatial {
 		_calling_client: Arc<Client>,
 		parent: Arc<Node>,
 	) -> Result<()> {
-		let this_spatial = node
-			.spatial
-			.get()
-			.ok_or_else(|| eyre!("Node doesn't have a spatial?"))?;
-		let parent = get_spatial(&parent, "Parent")?;
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		let parent = parent.get_aspect::<Spatial>()?;
 
-		this_spatial.set_spatial_parent(Some(parent))?;
+		this_spatial.set_spatial_parent(Some(&parent))?;
 		Ok(())
 	}
 
@@ -362,23 +343,20 @@ impl SpatialAspect for Spatial {
 		_calling_client: Arc<Client>,
 		parent: Arc<Node>,
 	) -> Result<()> {
-		let this_spatial = node
-			.spatial
-			.get()
-			.ok_or_else(|| eyre!("Node doesn't have a spatial?"))?;
-		let parent = get_spatial(&parent, "Parent")?;
+		let this_spatial = node.get_aspect::<Spatial>()?;
+		let parent = parent.get_aspect::<Spatial>()?;
 
-		this_spatial.set_spatial_parent_in_place(Some(parent))?;
+		this_spatial.set_spatial_parent_in_place(Some(&parent))?;
 		Ok(())
 	}
 
 	fn set_zoneable(node: Arc<Node>, _calling_client: Arc<Client>, zoneable: bool) -> Result<()> {
-		let spatial = node.spatial.get().unwrap();
+		let spatial = node.get_aspect::<Spatial>()?;
 		if zoneable {
-			ZONEABLE_REGISTRY.add_raw(spatial);
+			ZONEABLE_REGISTRY.add_raw(&spatial);
 		} else {
-			ZONEABLE_REGISTRY.remove(spatial);
-			zone::release(spatial);
+			ZONEABLE_REGISTRY.remove(&spatial);
+			zone::release(&spatial);
 		}
 		Ok(())
 	}
@@ -400,8 +378,8 @@ impl Debug for Spatial {
 }
 impl Drop for Spatial {
 	fn drop(&mut self) {
+		zone::release_drop(self);
 		ZONEABLE_REGISTRY.remove(self);
-		zone::release(self);
 	}
 }
 
@@ -422,24 +400,6 @@ 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,
-) -> 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) -> Result<Arc<Spatial>> {
-	find_spatial(calling_client, "Spatial parent", node_path)
-}
-pub fn get_spatial(node: &Arc<Node>, node_name: &str) -> Result<Arc<Spatial>> {
-	node.get_aspect(node_name, "spatial", |n| &n.spatial)
-		.cloned()
-}
-
 pub struct SpatialInterface;
 impl SpatialInterfaceAspect for SpatialInterface {
 	fn create_spatial(
@@ -450,11 +410,11 @@ impl SpatialInterfaceAspect for SpatialInterface {
 		transform: Transform,
 		zoneable: bool,
 	) -> Result<()> {
-		let parent = get_spatial(&parent, "Spatial parent")?;
+		let parent = parent.get_aspect::<Spatial>()?;
 		let transform = parse_transform(transform, true, true, true);
 		let node = Node::create_parent_name(&calling_client, "/spatial/spatial", &name, true)
 			.add_to_scenegraph()?;
-		Spatial::add_to(&node, Some(parent), transform, zoneable)?;
+		Spatial::add_to(&node, Some(parent.clone()), transform, zoneable);
 		Ok(())
 	}
 	fn create_zone(
@@ -465,13 +425,13 @@ impl SpatialInterfaceAspect for SpatialInterface {
 		transform: Transform,
 		field: Arc<Node>,
 	) -> Result<()> {
-		let parent = get_spatial(&parent, "Spatial parent")?;
+		let parent = parent.get_aspect::<Spatial>()?;
 		let transform = parse_transform(transform, true, true, false);
-		let field = get_field(&field)?;
+		let field = field.get_aspect::<Field>()?;
 
 		let node = Node::create_parent_name(&calling_client, "/spatial/zone", &name, true)
 			.add_to_scenegraph()?;
-		let space = Spatial::add_to(&node, Some(parent), transform, false)?;
+		let space = Spatial::add_to(&node, Some(parent.clone()), transform, false);
 		Zone::add_to(&node, space, &field);
 		Ok(())
 	}

src/nodes/spatial/zone.rs

@@ -1,10 +1,10 @@
-use super::{get_spatial, Spatial, ZoneAspect, ZONEABLE_REGISTRY};
+use super::{Spatial, ZoneAspect, ZONEABLE_REGISTRY};
 use crate::{
 	core::{client::Client, registry::Registry},
 	nodes::{
 		alias::{Alias, AliasInfo},
 		fields::Field,
-		Node,
+		Aspect, Node,
 	},
 };
 use glam::vec3a;
@@ -30,8 +30,8 @@ pub fn capture(spatial: &Arc<Spatial>, zone: &Arc<Zone>) {
 		let _ = super::zone_client::capture(&node, &spatial.uid);
 	}
 }
-pub fn release(spatial: &Spatial) {
-	let _ = spatial.set_spatial_parent_in_place(spatial.old_parent.lock().take());
+pub fn release(spatial: &Arc<Spatial>) {
+	let _ = spatial.set_spatial_parent_in_place(spatial.old_parent.lock().take().as_ref());
 	let mut spatial_zone = spatial.zone.lock();
 	if let Some(spatial_zone) = spatial_zone.upgrade() {
 		let Some(node) = spatial_zone.spatial.node.upgrade() else {
@@ -42,6 +42,16 @@ pub fn release(spatial: &Spatial) {
 	}
 	*spatial_zone = Weak::new();
 }
+pub(super) fn release_drop(spatial: &Spatial) {
+	let 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 _ = super::zone_client::release(&node, &spatial.uid);
+	}
+}
 
 pub struct Zone {
 	spatial: Arc<Spatial>,
@@ -58,13 +68,16 @@ impl Zone {
 			captured: Registry::new(),
 		});
 		<Zone as ZoneAspect>::add_node_members(node);
-		let _ = node.zone.set(zone.clone());
+		node.add_aspect_raw(zone.clone());
 		zone
 	}
 }
+impl Aspect for Zone {
+	const NAME: &'static str = "Zone";
+}
 impl ZoneAspect for Zone {
 	fn update(node: Arc<Node>, _calling_client: Arc<Client>) -> color_eyre::eyre::Result<()> {
-		let zone = node.zone.get().unwrap();
+		let zone = node.get_aspect::<Zone>()?;
 		let Some(field) = zone.field.upgrade() else {
 			return Err(color_eyre::eyre::eyre!("Zone's field has been destroyed"));
 		};
@@ -137,9 +150,9 @@ impl ZoneAspect for Zone {
 		_calling_client: Arc<Client>,
 		spatial: Arc<Node>,
 	) -> color_eyre::eyre::Result<()> {
-		let zone = node.zone.get().unwrap();
-		let spatial = get_spatial(&spatial, "Spatial")?;
-		capture(&spatial, zone);
+		let zone = node.get_aspect::<Zone>()?;
+		let spatial = spatial.get_aspect()?;
+		capture(&spatial, &zone);
 		Ok(())
 	}
 
@@ -148,7 +161,7 @@ impl ZoneAspect for Zone {
 		_calling_client: Arc<Client>,
 		spatial: Arc<Node>,
 	) -> color_eyre::eyre::Result<()> {
-		let spatial = get_spatial(&spatial, "Spatial")?;
+		let spatial = spatial.get_aspect()?;
 		release(&spatial);
 		Ok(())
 	}

src/objects/input/eye_pointer.rs

@@ -30,7 +30,7 @@ impl EyePointer {
 	pub fn new() -> Result<Self> {
 		let node = Node::create_parent_name(&INTERNAL_CLIENT, "", &nanoid!(), false)
 			.add_to_scenegraph()?;
-		let spatial = Spatial::add_to(&node, None, Mat4::IDENTITY, false).unwrap();
+		let spatial = Spatial::add_to(&node, None, Mat4::IDENTITY, false);
 		let pointer =
 			InputMethod::add_to(&node, InputType::Pointer(Pointer::default()), None).unwrap();
 

src/objects/input/mouse_pointer.rs

@@ -4,7 +4,7 @@ use crate::{
 		data::{
 			mask_matches, pulse_receiver_client, PulseSender, KEYMAPS, PULSE_RECEIVER_REGISTRY,
 		},
-		fields::Ray,
+		fields::{Field, Ray},
 		input::{pointer::Pointer, InputMethod, InputType},
 		spatial::Spatial,
 		Node,
@@ -60,7 +60,7 @@ impl MousePointer {
 	pub fn new() -> Result<Self> {
 		let node = Node::create_parent_name(&INTERNAL_CLIENT, "", &nanoid!(), false)
 			.add_to_scenegraph()?;
-		let spatial = Spatial::add_to(&node, None, Mat4::IDENTITY, false).unwrap();
+		let spatial = Spatial::add_to(&node, None, Mat4::IDENTITY, false);
 		let pointer =
 			InputMethod::add_to(&node, InputType::Pointer(Pointer::default()), None).unwrap();
 
@@ -140,7 +140,7 @@ impl MousePointer {
 			.into_iter()
 			.filter(|rx| mask_matches(&rx.mask, &self.keyboard_sender.mask))
 			.map(|rx| {
-				let result = rx.field_node.field.get().unwrap().ray_march(Ray {
+				let result = rx.field_node.get_aspect::<Field>().unwrap().ray_march(Ray {
 					origin: vec3(0.0, 0.0, 0.0),
 					direction: vec3(0.0, 0.0, -1.0),
 					space: self.spatial.clone(),

src/objects/input/sk_controller.rs

@@ -43,7 +43,7 @@ impl SkController {
 			false,
 		)
 		.add_to_scenegraph()?;
-		Spatial::add_to(&_node, None, Mat4::IDENTITY, false)?;
+		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)?;

src/objects/input/sk_hand.rs

@@ -42,7 +42,7 @@ impl SkHand {
 	pub fn new(handed: Handed) -> Result<Self> {
 		let _node = Node::create_parent_name(&INTERNAL_CLIENT, "", &nanoid!(), false)
 			.add_to_scenegraph()?;
-		Spatial::add_to(&_node, None, Mat4::IDENTITY, false)?;
+		Spatial::add_to(&_node, None, Mat4::IDENTITY, false);
 		let hand = InputType::Hand(Box::new(Hand {
 			base: FlatHand {
 				right: handed == Handed::Right,

src/objects/play_space.rs

@@ -42,8 +42,9 @@ impl PlaySpace {
 	pub fn new() -> Result<Self> {
 		let node = Node::create_parent_name(&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 spatial = Spatial::add_to(&node, None, Mat4::IDENTITY, false);
+		BoxField::add_to(&node, [0.0; 3].into());
+		let field = node.get_aspect::<Field>()?.clone();
 
 		let pulse_rx = PulseReceiver::add_to(
 			&node,