src/main.rs

@@ -16,6 +16,9 @@ use bevy::app::{App, TerminalCtrlCHandlerPlugin};
 use bevy::asset::{AssetMetaCheck, UnapprovedPathMode};
 use bevy::audio::AudioPlugin;
 use bevy::core_pipeline::CorePipelinePlugin;
+use bevy::core_pipeline::oit::{
+	OrderIndependentTransparencyPlugin, OrderIndependentTransparencySettings,
+};
 use bevy::diagnostic::DiagnosticsPlugin;
 use bevy::ecs::schedule::{ExecutorKind, ScheduleLabel};
 use bevy::gizmos::GizmoPlugin;
@@ -38,6 +41,7 @@ use bevy_mod_openxr::reference_space::OxrReferenceSpacePlugin;
 use bevy_mod_openxr::render::{OxrRenderPlugin, OxrWaitFrameSystem};
 use bevy_mod_openxr::resources::{OxrFrameState, OxrFrameWaiter, OxrSessionConfig};
 use bevy_mod_openxr::types::AppInfo;
+use bevy_mod_xr::camera::XrProjection;
 use bevy_mod_xr::hand_debug_gizmos::HandGizmosPlugin;
 use bevy_mod_xr::session::{XrFirst, XrHandleEvents};
 use clap::Parser;
@@ -56,6 +60,7 @@ use openxr::{EnvironmentBlendMode, ReferenceSpaceType};
 use session::{launch_start, save_session};
 use stardust_xr::schemas::dbus::object_registry::ObjectRegistry;
 use stardust_xr::server;
+use std::ops::DerefMut as _;
 use std::path::PathBuf;
 use std::sync::{Arc, OnceLock};
 use std::time::Duration;
@@ -359,7 +364,7 @@ fn bevy_loop(
 			.disable::<OxrActionAttachingPlugin>()
 			.disable::<OxrActionSyncingPlugin>(),
 	);
-	// font size is in meters
+
 	app.add_plugins((
 		bevy_sk::hand::HandPlugin,
 		bevy_sk::vr_materials::SkMaterialPlugin {
@@ -403,6 +408,7 @@ fn bevy_loop(
 	app.add_systems(PostStartup, move || {
 		ready_notifier.notify_waiters();
 	});
+	app.add_systems(Update, update_cameras);
 	app.add_systems(
 		XrFirst,
 		xr_step
@@ -412,6 +418,30 @@ fn bevy_loop(
 
 	app.run();
 }
+fn update_cameras(
+	mut camera: Query<
+		&mut Projection,
+		(
+			With<Camera3d>,
+		),
+	>,
+) {
+	for mut projection in &mut camera {
+		match projection.deref_mut() {
+			Projection::Perspective(perspective_projection) => perspective_projection.near = 0.003,
+			Projection::Orthographic(orthographic_projection) => {
+				orthographic_projection.near = 0.003
+			}
+			Projection::Custom(custom_projection) => {
+				if let Some(xr) = custom_projection.get_mut::<XrProjection>() {
+					xr.near = 0.003
+				} else {
+					error_once!("unknown custom camera projection");
+				}
+			}
+		}
+	}
+}
 
 fn xr_step(world: &mut World) {
 	// camera::update(token);

src/nodes/drawable/lines.rs

@@ -9,20 +9,17 @@ use crate::{
 use bevy::{
 	asset::RenderAssetUsages,
 	prelude::*,
-	render::mesh::{Indices, PrimitiveTopology},
-};
-use bevy_sk::vr_materials::PbrMaterial;
-use glam::{FloatExt, Vec3};
-use parking_lot::Mutex;
-use std::{
-	collections::VecDeque,
-	sync::{
-		Arc, OnceLock,
-		atomic::{AtomicBool, Ordering},
+	render::{
+		mesh::{Indices, MeshAabb, PrimitiveTopology},
+		primitives::Aabb,
 	},
 };
-use stereokit_rust::{
-	maths::Bounds, sk::MainThreadToken, system::LinePoint as SkLinePoint, util::Color128,
+use bevy_sk::vr_materials::PbrMaterial;
+use glam::Vec3;
+use parking_lot::Mutex;
+use std::sync::{
+	Arc, OnceLock,
+	atomic::{AtomicBool, Ordering},
 };
 
 pub struct LinesNodePlugin;
@@ -32,16 +29,6 @@ impl Plugin for LinesNodePlugin {
 		app.add_systems(Update, build_line_mesh);
 	}
 }
-const POINTS: [Vec3; 8] = [
-	Vec3::X,
-	Vec3::new(1., 0., 1.),
-	Vec3::Z,
-	Vec3::new(-1., 0., 1.),
-	Vec3::NEG_X,
-	Vec3::new(-1., 0., -1.),
-	Vec3::NEG_Z,
-	Vec3::new(1., 0., -1.),
-];
 
 fn build_line_mesh(
 	mut meshes: ResMut<Assets<Mesh>>,
@@ -62,25 +49,30 @@ fn build_line_mesh(
 		if lines_data.is_empty() {
 			continue;
 		}
-	
-		let mut idk = 0;
+
+		let mut indecies_set = 0;
 		for line in lines_data.iter() {
+			let start_set = indecies_set;
 			let optional_points = {
 				let mut out = Vec::new();
 				let mut last = line.cyclic.then(|| line.points.last()).flatten();
 				let mut peekable = line.points.iter().peekable();
 				while let Some(curr) = peekable.next() {
+					let mut end = false;
 					let next = match peekable.peek() {
 						Some(v) => Some(*v),
-						None => line.cyclic.then(|| line.points.first()).flatten(),
+						None => {
+							end = true;
+							line.cyclic.then(|| line.points.first()).flatten()
+						}
 					};
 
-					out.push((last, curr, next));
+					out.push((last, curr, next, end));
 					last = Some(curr);
 				}
 				out
 			};
-			for (last, curr, next) in optional_points {
+			for (last, curr, next, end) in optional_points {
 				let last_quat = last.map(|v| {
 					Quat::from_rotation_arc(
 						Vec3::Y,
@@ -115,10 +107,18 @@ fn build_line_mesh(
 				vertex_normals.extend(normals);
 				vertex_positions.extend(points);
 				vertex_colors.extend([curr.color.to_bevy().to_srgba().to_f32_array(); 8]);
-				idk += 1;
+				if !end {
+					vertex_indecies.extend(indecies(indecies_set));
+				}
+				indecies_set += 1;
+			}
+			if line.cyclic {
+				vertex_indecies.extend(cyclic_indecies(start_set, indecies_set - 1));
+			} else {
+				vertex_indecies.extend(cap_indecies(start_set, false));
+				vertex_indecies.extend(cap_indecies(indecies_set - 1, true));
 			}
 		}
-		let vertex_indecies = (0..idk - 1).flat_map(indecies).collect::<Vec<_>>();
 		let mut mesh = Mesh::new(
 			PrimitiveTopology::TriangleList,
 			RenderAssetUsages::RENDER_WORLD,
@@ -126,7 +126,10 @@ fn build_line_mesh(
 		mesh.insert_indices(Indices::U32(vertex_indecies));
 		mesh.insert_attribute(Mesh::ATTRIBUTE_COLOR, vertex_colors);
 		mesh.insert_attribute(Mesh::ATTRIBUTE_NORMAL, vertex_normals);
-		mesh.insert_attribute(Mesh::ATTRIBUTE_POSITION, vertex_positions);
+		mesh.insert_attribute(Mesh::ATTRIBUTE_POSITION, vertex_positions.clone());
+		if let Some(aabb) = mesh.compute_aabb() {
+			*lines.bounds.lock() = aabb;
+		}
 
 		match lines.entity.get() {
 			Some(e) => cmds.entity(*e),
@@ -137,23 +140,38 @@ fn build_line_mesh(
 			MeshMaterial3d(materials.add(PbrMaterial {
 				color: Color::WHITE,
 				roughness: 1.0,
-				alpha_mode: AlphaMode::Blend,
+				alpha_mode: AlphaMode::Opaque,
 				..default()
 			})),
 		));
 	}
 }
 
+const END_CAP_INDECIES: [u32; 18] = [0, 1, 7, 7, 1, 2, 7, 2, 6, 6, 2, 3, 6, 3, 5, 5, 3, 4];
+fn cap_indecies(set: u32, flip: bool) -> [u32; END_CAP_INDECIES.len()] {
+	let mut out = END_CAP_INDECIES.map(|v| v + (set * 8));
+	if flip {
+		out.reverse();
+	}
+	out
+}
+
 // const BASE: [u16; 6] = [0, 8, 1, 8, 9, 1];
 const INDECIES: [u32; 48] = [
 	0, 8, 1, 8, 9, 1, 1, 9, 2, 9, 10, 2, 2, 10, 3, 10, 11, 3, 3, 11, 4, 11, 12, 4, 4, 12, 5, 12,
 	13, 5, 5, 13, 6, 13, 14, 6, 6, 14, 7, 14, 15, 7, 7, 15, 0, 15, 8, 0,
 ];
-fn indecies(base: u32) -> [u32; INDECIES.len()] {
-	INDECIES.map(|v| v + (base * 8))
+fn indecies(set: u32) -> [u32; INDECIES.len()] {
+	INDECIES.map(|v| v + (set * 8))
 }
-fn cyclic_indecies(base: u32) -> [u32; INDECIES.len()] {
-	let mut out = INDECIES.map(|v| if v >= 8 { v + (base * 8) } else { v });
+fn cyclic_indecies(start_set: u32, end_set: u32) -> [u32; INDECIES.len()] {
+	let mut out = INDECIES.map(|v| {
+		if v < 8 {
+			v + ((start_set) * 8)
+		} else {
+			v + ((end_set - 1) * 8)
+		}
+	});
 	out.reverse();
 	out
 }
@@ -165,6 +183,7 @@ pub struct Lines {
 	data: Mutex<Vec<Line>>,
 	gen_mesh: AtomicBool,
 	entity: OnceLock<Entity>,
+	bounds: Mutex<Aabb>,
 }
 impl Lines {
 	pub fn add_to(node: &Arc<Node>, lines: Vec<Line>) -> Result<Arc<Lines>> {
@@ -173,15 +192,10 @@ impl Lines {
 			.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
+				node.get_aspect::<Lines>()
+					.ok()
+					.map(|v| v.bounds.lock().clone())
+					.unwrap_or_default()
 			});
 
 		info!("line::add_to");
@@ -190,48 +204,12 @@ impl Lines {
 			data: Mutex::new(lines),
 			gen_mesh: AtomicBool::new(true),
 			entity: OnceLock::new(),
+			bounds: Mutex::new(Aabb::default()),
 		});
 		node.add_aspect_raw(lines.clone());
 
 		Ok(lines)
 	}
-
-	fn draw(&self, token: &MainThreadToken) {
-		let transform_mat = self.spatial.global_transform();
-		let data = self.data.lock().clone();
-		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());
-		}
-	}
 }
 impl LinesAspect for Lines {
 	fn set_lines(node: Arc<Node>, _calling_client: Arc<Client>, lines: Vec<Line>) -> Result<()> {
@@ -247,13 +225,3 @@ impl Drop for Lines {
 		LINES_REGISTRY.remove(self);
 	}
 }
-
-pub fn draw_all(token: &MainThreadToken) {
-	for lines in LINES_REGISTRY.get_valid_contents() {
-		if let Some(node) = lines.spatial.node() {
-			if node.enabled() {
-				lines.draw(token);
-			}
-		}
-	}
-}

src/nodes/drawable/mod.rs

@@ -22,7 +22,6 @@ use stereokit_rust::{sk::MainThreadToken, system::Renderer, tex::SHCubemap};
 
 // #[instrument(level = "debug", skip(sk))]
 pub fn draw(token: &MainThreadToken) {
-	lines::draw_all(token);
 	match QUEUED_SKYTEX.lock().take() {
 		Some(Some(skytex)) => {
 			if let Ok(skytex) = SHCubemap::from_cubemap(skytex, true, 100) {

src/nodes/drawable/model.rs

@@ -9,6 +9,7 @@ use crate::nodes::Node;
 use crate::nodes::alias::{Alias, AliasList};
 use crate::nodes::spatial::{Spatial, SpatialNode};
 use bevy::prelude::*;
+use bevy::render::primitives::Aabb;
 use bevy_sk::vr_materials::PbrMaterial;
 use color_eyre::eyre::eyre;
 use parking_lot::Mutex;
@@ -18,7 +19,6 @@ use std::ffi::OsStr;
 use std::hash::{Hash, Hasher};
 use std::path::PathBuf;
 use std::sync::{Arc, OnceLock, Weak};
-use stereokit_rust::maths::Bounds;
 use tokio::sync::mpsc;
 
 static LOAD_MODEL: OnceLock<mpsc::UnboundedSender<(Arc<Model>, PathBuf)>> = OnceLock::new();
@@ -121,6 +121,7 @@ fn gen_model_parts(
 	query: Query<(Entity, &SceneRoot, &ModelNode, &Children)>,
 	children_query: Query<&Children>,
 	part_query: Query<(&Name, Option<&Children>, &Transform), Without<Mesh3d>>,
+	part_mesh_query: Query<(&Transform, &Aabb), With<Mesh3d>>,
 	has_mesh: Query<Has<Mesh3d>>,
 	mut cmds: Commands,
 ) {
@@ -145,7 +146,7 @@ fn gen_model_parts(
 				entity,
 				&part_query,
 				None,
-				&mut |entity, name, transform, parent| {
+				&mut |entity, name, transform, parent, children| {
 					let path = parent
 						.as_ref()
 						.map(|p| format!("{}/{}", &p.path, name.as_str()))
@@ -175,6 +176,7 @@ fn gen_model_parts(
 									pending_material_parameters: Mutex::default(),
 									pending_material_replacement: Mutex::default(),
 									aliases: AliasList::default(),
+									bounds: OnceLock::new(),
 								});
 								(spatial, model_part)
 							}
@@ -185,9 +187,24 @@ fn gen_model_parts(
 								(part.space.clone(), part.clone())
 							}
 						};
-					_ = spatial.bounding_box_calc.set(|_| {
-						// TODO: actually impl aabb
-						Bounds::default()
+					let aabb = Aabb::enclosing(
+						children
+							.iter()
+							.flat_map(|v| v.iter())
+							.filter_map(|e| part_mesh_query.get(e).ok())
+							.flat_map(|(transform, aabb)| {
+								[
+									transform.transform_point(aabb.min().into()),
+									transform.transform_point(aabb.max().into()),
+								]
+							}),
+					)
+					.unwrap_or_default();
+					_ = spatial.bounding_box_calc.set(move |n| {
+						n.get_aspect::<ModelPart>()
+							.ok()
+							.and_then(|v| v.bounds.get().copied())
+							.unwrap_or_default()
 					});
 					cmds.entity(entity)
 						.insert(SpatialNode(Arc::downgrade(&spatial)));
@@ -196,6 +213,7 @@ fn gen_model_parts(
 						.iter()
 						.flat_map(|v| v.iter())
 						.find(|e| has_mesh.get(*e).unwrap_or(false))?;
+					_ = model_part.bounds.set(aabb);
 					_ = model_part.entity.set(entity);
 					_ = model_part.mesh_entity.set(mesh_entity);
 					parts.push(model_part.clone());
@@ -216,12 +234,13 @@ fn gen_path(
 		&Name,
 		&Transform,
 		Option<Arc<ModelPart>>,
+		Option<&Children>,
 	) -> Option<Arc<ModelPart>>,
 ) {
 	let Ok((name, children, transform)) = part_query.get(current_entity) else {
 		return;
 	};
-	let Some(parent) = func(current_entity, name, transform, parent) else {
+	let Some(parent) = func(current_entity, name, transform, parent, children) else {
 		return;
 	};
 	for e in children.iter().flat_map(|c| c.iter()) {
@@ -449,6 +468,7 @@ pub struct ModelPart {
 	pending_material_parameters: Mutex<FxHashMap<String, MaterialParameter>>,
 	pending_material_replacement: Mutex<Option<Material>>,
 	aliases: AliasList,
+	bounds: OnceLock<Aabb>,
 }
 impl ModelPart {
 	pub fn replace_material(&self, replacement: Material) {
@@ -589,6 +609,7 @@ impl Model {
 					pending_material_parameters: Mutex::default(),
 					pending_material_replacement: Mutex::default(),
 					aliases: AliasList::default(),
+					bounds: OnceLock::new(),
 				});
 				self.pre_bound_parts.lock().push(part.clone());
 				part

src/nodes/spatial/mod.rs

@@ -11,6 +11,7 @@ use crate::core::registry::Registry;
 use crate::nodes::{Node, OWNED_ASPECT_ALIAS_INFO};
 use bevy::prelude::Transform as BevyTransform;
 use bevy::prelude::*;
+use bevy::render::primitives::Aabb;
 use color_eyre::eyre::OptionExt;
 use glam::{Mat4, Quat, Vec3, vec3a};
 use mint::Vector3;
@@ -19,7 +20,6 @@ use rustc_hash::FxHashMap;
 use std::fmt::Debug;
 use std::sync::{Arc, OnceLock, Weak};
 use std::{f32, ptr};
-use stereokit_rust::maths::Bounds;
 
 pub struct SpatialNodePlugin;
 impl Plugin for SpatialNodePlugin {
@@ -102,7 +102,7 @@ pub struct Spatial {
 	transform: Mutex<Mat4>,
 	zone: Mutex<Weak<Zone>>,
 	children: Registry<Spatial>,
-	pub bounding_box_calc: OnceLock<fn(&Node) -> Bounds>,
+	pub bounding_box_calc: OnceLock<fn(&Node) -> Aabb>,
 }
 
 impl Spatial {
@@ -146,9 +146,9 @@ impl Spatial {
 	}
 
 	// the output bounds are probably way bigger than they need to be
-	pub fn get_bounding_box(&self) -> Bounds {
+	pub fn get_bounding_box(&self) -> Aabb {
 		let Some(node) = self.node() else {
-			return Bounds::default();
+			return Aabb::default();
 		};
 		let mut bounds = self
 			.bounding_box_calc
@@ -156,7 +156,15 @@ impl Spatial {
 			.map(|b| (b)(&node))
 			.unwrap_or_default();
 		for child in self.children.get_valid_contents() {
-			bounds.grown_box(child.get_bounding_box(), child.local_transform());
+			let mat = child.local_transform();
+			let child_aabb = child.get_bounding_box();
+			bounds = Aabb::enclosing([
+				bounds.min().into(),
+				bounds.max().into(),
+				mat.transform_point3(child_aabb.min().into()),
+				mat.transform_point3(child_aabb.max().into()),
+			])
+			.unwrap();
 		}
 		bounds
 	}
@@ -398,7 +406,7 @@ impl SpatialRefAspect for SpatialRef {
 
 		Ok(BoundingBox {
 			center: Vec3::from(bounds.center).into(),
-			size: Vec3::from(bounds.dimensions).into(),
+			size: Vec3::from(bounds.half_extents * 2.0).into(),
 		})
 	}
 
@@ -409,20 +417,17 @@ impl SpatialRefAspect for SpatialRef {
 	) -> 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)),
-		);
+		let mat = Spatial::space_to_space_matrix(Some(&this_spatial), Some(&relative_spatial));
+		let bb = this_spatial.get_bounding_box();
+		let bounds = Aabb::enclosing([
+			mat.transform_point3(bb.min().into()),
+			mat.transform_point3(bb.max().into()),
+		])
+		.unwrap();
 
 		Ok(BoundingBox {
 			center: Vec3::from(bounds.center).into(),
-			size: Vec3::from(bounds.dimensions).into(),
+			size: Vec3::from(bounds.half_extents * 2.0).into(),
 		})
 	}
 

src/objects/input/sk_controller.rs

@@ -307,6 +307,9 @@ impl SkController {
 		})
 	}
 	pub fn set_enabled(&self, enabled: bool) {
+		if let Some(node) = self.input.spatial.node() {
+			node.set_enabled(enabled);
+		}
 		tokio::spawn({
 			// this is suboptimal since it probably allocates a fresh string every frame
 			let handle = self.tracked.clone();
@@ -342,8 +345,6 @@ impl SkController {
 			let world_transform = Mat4::from(Affine3A::from(location.pose.to_xr_pose()));
 			self.model_part
 				.set_material_parameter("roughness".to_string(), MaterialParameter::Float(1.0));
-			// self.model_part
-			// 	.set_material_parameter("metallic".to_string(), MaterialParameter::Float(0.0));
 			self.model_part.set_material_parameter(
 				"color".to_string(),
 				MaterialParameter::Color(stardust_xr::values::Color::new(