Merge branch 'main' into proper-json-schema

.github/workflows/ci.yml

@@ -294,7 +294,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Check for typos
-        uses: crate-ci/typos@v1.33.1
+        uses: crate-ci/typos@v1.34.0
       - name: Typos info
         if: failure()
         run: |

Cargo.toml

@@ -868,6 +868,7 @@ doc-scrape-examples = true
 name = "Texture Atlas"
 description = "Generates a texture atlas (sprite sheet) from individual sprites"
 category = "2D Rendering"
+# Loading asset folders is not supported in Wasm, but required to create the atlas.
 wasm = false
 
 [[example]]
@@ -945,6 +946,7 @@ doc-scrape-examples = true
 name = "2D Wireframe"
 description = "Showcases wireframes for 2d meshes"
 category = "2D Rendering"
+# PolygonMode::Line wireframes are not supported by WebGL
 wasm = false
 
 # 3D Rendering
@@ -1012,6 +1014,7 @@ doc-scrape-examples = true
 name = "Anti-aliasing"
 description = "Compares different anti-aliasing methods"
 category = "3D Rendering"
+# TAA not supported by WebGL
 wasm = false
 
 [[example]]
@@ -1056,6 +1059,7 @@ doc-scrape-examples = true
 name = "Auto Exposure"
 description = "A scene showcasing auto exposure"
 category = "3D Rendering"
+# Requires compute shaders, which are not supported by WebGL.
 wasm = false
 
 [[example]]
@@ -1123,6 +1127,7 @@ doc-scrape-examples = true
 name = "Screen Space Ambient Occlusion"
 description = "A scene showcasing screen space ambient occlusion"
 category = "3D Rendering"
+# Requires compute shaders, which are not supported by WebGL.
 wasm = false
 
 [[example]]
@@ -1222,6 +1227,7 @@ doc-scrape-examples = true
 name = "Order Independent Transparency"
 description = "Demonstrates how to use OIT"
 category = "3D Rendering"
+# Not supported by WebGL
 wasm = false
 
 [[example]]
@@ -1321,7 +1327,7 @@ doc-scrape-examples = true
 name = "Skybox"
 description = "Load a cubemap texture onto a cube like a skybox and cycle through different compressed texture formats."
 category = "3D Rendering"
-wasm = false
+wasm = true
 
 [[example]]
 name = "solari"
@@ -1432,6 +1438,7 @@ doc-scrape-examples = true
 name = "Wireframe"
 description = "Showcases wireframe rendering"
 category = "3D Rendering"
+# Not supported on WebGL
 wasm = false
 
 [[example]]
@@ -1443,6 +1450,8 @@ doc-scrape-examples = true
 name = "Irradiance Volumes"
 description = "Demonstrates irradiance volumes"
 category = "3D Rendering"
+# On WebGL and WebGPU, the number of texture bindings is too low
+# See <https://github.com/bevyengine/bevy/issues/11885>
 wasm = false
 
 [[example]]
@@ -1455,6 +1464,7 @@ required-features = ["meshlet"]
 name = "Meshlet"
 description = "Meshlet rendering for dense high-poly scenes (experimental)"
 category = "3D Rendering"
+# Requires compute shaders and WGPU extensions, not supported by WebGL nor WebGPU.
 wasm = false
 setup = [
   [
@@ -1490,7 +1500,7 @@ doc-scrape-examples = true
 name = "Lightmaps"
 description = "Rendering a scene with baked lightmaps"
 category = "3D Rendering"
-wasm = false
+wasm = true
 
 [[example]]
 name = "no_prepass"
@@ -1643,6 +1653,7 @@ doc-scrape-examples = true
 name = "Custom Loop"
 description = "Demonstrates how to create a custom runner (to update an app manually)"
 category = "Application"
+# Doesn't render anything, doesn't create a canvas
 wasm = false
 
 [[example]]
@@ -1654,6 +1665,7 @@ doc-scrape-examples = true
 name = "Drag and Drop"
 description = "An example that shows how to handle drag and drop in an app"
 category = "Application"
+# Browser drag and drop is not supported
 wasm = false
 
 [[example]]
@@ -1665,6 +1677,7 @@ doc-scrape-examples = true
 name = "Empty"
 description = "An empty application (does nothing)"
 category = "Application"
+# Doesn't render anything, doesn't create a canvas
 wasm = false
 
 [[example]]
@@ -1688,6 +1701,7 @@ required-features = ["bevy_log"]
 name = "Headless"
 description = "An application that runs without default plugins"
 category = "Application"
+# Doesn't render anything, doesn't create a canvas
 wasm = false
 
 [[example]]
@@ -1710,6 +1724,8 @@ doc-scrape-examples = true
 name = "Log layers"
 description = "Illustrate how to add custom log layers"
 category = "Application"
+# Accesses `time`, which is not available on the web
+# Also doesn't render anything
 wasm = false
 
 [[example]]
@@ -1721,6 +1737,7 @@ doc-scrape-examples = true
 name = "Advanced log layers"
 description = "Illustrate how to transfer data between log layers and Bevy's ECS"
 category = "Application"
+# Doesn't render anything, doesn't create a canvas
 wasm = false
 
 [[example]]
@@ -4325,6 +4342,14 @@ description = "Demonstrates specular tints and maps"
 category = "3D Rendering"
 wasm = true
 
+[[example]]
+name = "test_invalid_skinned_mesh"
+path = "tests/3d/test_invalid_skinned_mesh.rs"
+doc-scrape-examples = true
+
+[package.metadata.example.test_invalid_skinned_mesh]
+hidden = true
+
 [profile.wasm-release]
 inherits = "release"
 opt-level = "z"

assets/shaders/custom_vertex_attribute.wgsl

@@ -1,3 +1,5 @@
+// For 2d replace `bevy_pbr::mesh_functions` with `bevy_sprite::mesh2d_functions`
+// and `mesh_position_local_to_clip` with `mesh2d_position_local_to_clip`.
 #import bevy_pbr::mesh_functions::{get_world_from_local, mesh_position_local_to_clip}
 
 struct CustomMaterial {

assets/shaders/extended_material.wgsl

@@ -17,6 +17,12 @@
 
 struct MyExtendedMaterial {
     quantize_steps: u32,
+#ifdef SIXTEEN_BYTE_ALIGNMENT
+    // Web examples WebGL2 support: structs must be 16 byte aligned.
+    _webgl2_padding_8b: u32,
+    _webgl2_padding_12b: u32,
+    _webgl2_padding_16b: u32,
+#endif
 }
 
 @group(3) @binding(100)

benches/benches/bevy_ecs/events/iter.rs

@@ -10,7 +10,7 @@ impl<const SIZE: usize> Benchmark<SIZE> {
         let mut events = Events::default();
 
         for _ in 0..count {
-            events.send(BenchEvent([0u8; SIZE]));
+            events.write(BenchEvent([0u8; SIZE]));
         }
 
         Self(events)

benches/benches/bevy_ecs/events/mod.rs

@@ -1,5 +1,5 @@
 mod iter;
-mod send;
+mod write;
 
 use criterion::{criterion_group, Criterion};
 
@@ -11,19 +11,19 @@ fn send(c: &mut Criterion) {
     group.measurement_time(core::time::Duration::from_secs(4));
     for count in [100, 1_000, 10_000] {
         group.bench_function(format!("size_4_events_{count}"), |b| {
-            let mut bench = send::Benchmark::<4>::new(count);
+            let mut bench = write::Benchmark::<4>::new(count);
             b.iter(move || bench.run());
         });
     }
     for count in [100, 1_000, 10_000] {
         group.bench_function(format!("size_16_events_{count}"), |b| {
-            let mut bench = send::Benchmark::<16>::new(count);
+            let mut bench = write::Benchmark::<16>::new(count);
             b.iter(move || bench.run());
         });
     }
     for count in [100, 1_000, 10_000] {
         group.bench_function(format!("size_512_events_{count}"), |b| {
-            let mut bench = send::Benchmark::<512>::new(count);
+            let mut bench = write::Benchmark::<512>::new(count);
             b.iter(move || bench.run());
         });
     }

benches/benches/bevy_ecs/events/write.rs

@@ -21,7 +21,7 @@ impl<const SIZE: usize> Benchmark<SIZE> {
         // Force both internal buffers to be allocated.
         for _ in 0..2 {
             for _ in 0..count {
-                events.send(BenchEvent([0u8; SIZE]));
+                events.write(BenchEvent([0u8; SIZE]));
             }
             events.update();
         }
@@ -32,7 +32,7 @@ impl<const SIZE: usize> Benchmark<SIZE> {
     pub fn run(&mut self) {
         for _ in 0..self.count {
             self.events
-                .send(core::hint::black_box(BenchEvent([0u8; SIZE])));
+                .write(core::hint::black_box(BenchEvent([0u8; SIZE])));
         }
         self.events.update();
     }

crates/bevy_animation/Cargo.toml

@@ -14,7 +14,6 @@ bevy_app = { path = "../bevy_app", version = "0.17.0-dev" }
 bevy_asset = { path = "../bevy_asset", version = "0.17.0-dev" }
 bevy_color = { path = "../bevy_color", version = "0.17.0-dev" }
 bevy_derive = { path = "../bevy_derive", version = "0.17.0-dev" }
-bevy_log = { path = "../bevy_log", version = "0.17.0-dev" }
 bevy_math = { path = "../bevy_math", version = "0.17.0-dev" }
 bevy_mesh = { path = "../bevy_mesh", version = "0.17.0-dev" }
 bevy_reflect = { path = "../bevy_reflect", version = "0.17.0-dev", features = [

crates/bevy_anti_aliasing/src/smaa/mod.rs

@@ -30,9 +30,7 @@
 //!
 //! [SMAA]: https://www.iryoku.com/smaa/
 use bevy_app::{App, Plugin};
-#[cfg(feature = "smaa_luts")]
+use bevy_asset::{embedded_asset, load_embedded_asset, AssetServer, Handle};
-use bevy_asset::load_internal_binary_asset;
-use bevy_asset::{embedded_asset, load_embedded_asset, uuid_handle, AssetServer, Handle};
 #[cfg(not(feature = "smaa_luts"))]
 use bevy_core_pipeline::tonemapping::lut_placeholder;
 use bevy_core_pipeline::{
@@ -79,13 +77,6 @@ use bevy_render::{
 };
 use bevy_utils::prelude::default;
 
-/// The handle of the area LUT, a KTX2 format texture that SMAA uses internally.
-const SMAA_AREA_LUT_TEXTURE_HANDLE: Handle<Image> =
-    uuid_handle!("569c4d67-c7fa-4958-b1af-0836023603c0");
-/// The handle of the search LUT, a KTX2 format texture that SMAA uses internally.
-const SMAA_SEARCH_LUT_TEXTURE_HANDLE: Handle<Image> =
-    uuid_handle!("43b97515-252e-4c8a-b9af-f2fc528a1c27");
-
 /// Adds support for subpixel morphological antialiasing, or SMAA.
 pub struct SmaaPlugin;
 
@@ -125,6 +116,14 @@ pub enum SmaaPreset {
     Ultra,
 }
 
+#[derive(Resource)]
+struct SmaaLuts {
+    /// The handle of the area LUT, a KTX2 format texture that SMAA uses internally.
+    area_lut: Handle<Image>,
+    /// The handle of the search LUT, a KTX2 format texture that SMAA uses internally.
+    search_lut: Handle<Image>,
+}
+
 /// A render world resource that holds all render pipeline data needed for SMAA.
 ///
 /// There are three separate passes, so we need three separate pipelines.
@@ -292,49 +291,26 @@ impl Plugin for SmaaPlugin {
         // Load the shader.
         embedded_asset!(app, "smaa.wgsl");
 
-        // Load the two lookup textures. These are compressed textures in KTX2
-        // format.
         #[cfg(feature = "smaa_luts")]
-        load_internal_binary_asset!(
+        let smaa_luts = {
-            app,
+            // Load the two lookup textures. These are compressed textures in KTX2 format.
-            SMAA_AREA_LUT_TEXTURE_HANDLE,
+            embedded_asset!(app, "SMAAAreaLUT.ktx2");
-            "SMAAAreaLUT.ktx2",
+            embedded_asset!(app, "SMAASearchLUT.ktx2");
-            |bytes, _: String| Image::from_buffer(
-                bytes,
-                bevy_image::ImageType::Format(bevy_image::ImageFormat::Ktx2),
-                bevy_image::CompressedImageFormats::NONE,
-                false,
-                bevy_image::ImageSampler::Default,
-                bevy_asset::RenderAssetUsages::RENDER_WORLD,
-            )
-            .expect("Failed to load SMAA area LUT")
-        );
-
-        #[cfg(feature = "smaa_luts")]
-        load_internal_binary_asset!(
-            app,
-            SMAA_SEARCH_LUT_TEXTURE_HANDLE,
-            "SMAASearchLUT.ktx2",
-            |bytes, _: String| Image::from_buffer(
-                bytes,
-                bevy_image::ImageType::Format(bevy_image::ImageFormat::Ktx2),
-                bevy_image::CompressedImageFormats::NONE,
-                false,
-                bevy_image::ImageSampler::Default,
-                bevy_asset::RenderAssetUsages::RENDER_WORLD,
-            )
-            .expect("Failed to load SMAA search LUT")
-        );
 
+            SmaaLuts {
+                area_lut: load_embedded_asset!(app, "SMAAAreaLUT.ktx2"),
+                search_lut: load_embedded_asset!(app, "SMAASearchLUT.ktx2"),
+            }
+        };
         #[cfg(not(feature = "smaa_luts"))]
-        app.world_mut()
+        let smaa_luts = {
-            .resource_mut::<bevy_asset::Assets<Image>>()
+            let mut images = app.world_mut().resource_mut::<bevy_asset::Assets<Image>>();
-            .insert(SMAA_AREA_LUT_TEXTURE_HANDLE.id(), lut_placeholder());
+            let handle = images.add(lut_placeholder());
-
+            SmaaLuts {
-        #[cfg(not(feature = "smaa_luts"))]
+                area_lut: handle.clone(),
-        app.world_mut()
+                search_lut: handle.clone(),
-            .resource_mut::<bevy_asset::Assets<Image>>()
+            }
-            .insert(SMAA_SEARCH_LUT_TEXTURE_HANDLE.id(), lut_placeholder());
+        };
 
         app.add_plugins(ExtractComponentPlugin::<Smaa>::default())
             .register_type::<Smaa>();
@@ -344,6 +320,7 @@ impl Plugin for SmaaPlugin {
         };
 
         render_app
+            .insert_resource(smaa_luts)
             .init_resource::<SmaaSpecializedRenderPipelines>()
             .init_resource::<SmaaInfoUniformBuffer>()
             .add_systems(RenderStartup, init_smaa_pipelines)
@@ -747,13 +724,14 @@ fn prepare_smaa_bind_groups(
     mut commands: Commands,
     render_device: Res<RenderDevice>,
     smaa_pipelines: Res<SmaaPipelines>,
+    smaa_luts: Res<SmaaLuts>,
     images: Res<RenderAssets<GpuImage>>,
     view_targets: Query<(Entity, &SmaaTextures), (With<ExtractedView>, With<Smaa>)>,
 ) {
     // Fetch the two lookup textures. These are bundled in this library.
     let (Some(search_texture), Some(area_texture)) = (
-        images.get(&SMAA_SEARCH_LUT_TEXTURE_HANDLE),
+        images.get(&smaa_luts.search_lut),
-        images.get(&SMAA_AREA_LUT_TEXTURE_HANDLE),
+        images.get(&smaa_luts.area_lut),
     ) else {
         return;
     };

crates/bevy_app/src/app.rs

@@ -1864,7 +1864,7 @@ mod tests {
         app.update();
 
         // Sending one event
-        app.world_mut().send_event(TestEvent);
+        app.world_mut().write_event(TestEvent);
 
         let test_events = app.world().resource::<Events<TestEvent>>();
         assert_eq!(test_events.len(), 1);
@@ -1872,8 +1872,8 @@ mod tests {
         app.update();
 
         // Sending two events on the next frame
-        app.world_mut().send_event(TestEvent);
+        app.world_mut().write_event(TestEvent);
-        app.world_mut().send_event(TestEvent);
+        app.world_mut().write_event(TestEvent);
 
         let test_events = app.world().resource::<Events<TestEvent>>();
         assert_eq!(test_events.len(), 3); // Events are double-buffered, so we see 1 + 2 = 3

crates/bevy_asset/src/handle.rs

@@ -492,8 +492,8 @@ impl<A: Asset> TryFrom<UntypedHandle> for Handle<A> {
 ///
 /// ```
 /// # use bevy_asset::{Handle, uuid_handle};
-/// # type Shader = ();
+/// # type Image = ();
-/// const SHADER: Handle<Shader> = uuid_handle!("1347c9b7-c46a-48e7-b7b8-023a354b7cac");
+/// const IMAGE: Handle<Image> = uuid_handle!("1347c9b7-c46a-48e7-b7b8-023a354b7cac");
 /// ```
 #[macro_export]
 macro_rules! uuid_handle {

crates/bevy_asset/src/server/mod.rs

@@ -167,7 +167,7 @@ impl AssetServer {
         fn sender<A: Asset>(world: &mut World, id: UntypedAssetId) {
             world
                 .resource_mut::<Events<AssetEvent<A>>>()
-                .send(AssetEvent::LoadedWithDependencies { id: id.typed() });
+                .write(AssetEvent::LoadedWithDependencies { id: id.typed() });
         }
         fn failed_sender<A: Asset>(
             world: &mut World,
@@ -177,7 +177,7 @@ impl AssetServer {
         ) {
             world
                 .resource_mut::<Events<AssetLoadFailedEvent<A>>>()
-                .send(AssetLoadFailedEvent {
+                .write(AssetLoadFailedEvent {
                     id: id.typed(),
                     path,
                     error,
@@ -1685,7 +1685,7 @@ pub fn handle_internal_asset_events(world: &mut World) {
         }
 
         if !untyped_failures.is_empty() {
-            world.send_event_batch(untyped_failures);
+            world.write_event_batch(untyped_failures);
         }
 
         fn queue_ancestors(

crates/bevy_audio/Cargo.toml

@@ -16,7 +16,6 @@ bevy_ecs = { path = "../bevy_ecs", version = "0.17.0-dev" }
 bevy_math = { path = "../bevy_math", version = "0.17.0-dev" }
 bevy_reflect = { path = "../bevy_reflect", version = "0.17.0-dev" }
 bevy_transform = { path = "../bevy_transform", version = "0.17.0-dev" }
-bevy_derive = { path = "../bevy_derive", version = "0.17.0-dev" }
 
 # other
 # TODO: Remove `coreaudio-sys` dep below when updating `cpal`.

crates/bevy_audio/src/audio.rs

@@ -3,6 +3,7 @@ use bevy_asset::{Asset, Handle};
 use bevy_ecs::prelude::*;
 use bevy_math::Vec3;
 use bevy_reflect::prelude::*;
+use bevy_transform::components::Transform;
 
 /// The way Bevy manages the sound playback.
 #[derive(Debug, Clone, Copy, Reflect)]
@@ -10,10 +11,10 @@ use bevy_reflect::prelude::*;
 pub enum PlaybackMode {
     /// Play the sound once. Do nothing when it ends.
     ///
-    /// Note: It is not possible to reuse an `AudioPlayer` after it has finished playing and
+    /// Note: It is not possible to reuse an [`AudioPlayer`] after it has finished playing and
-    /// the underlying `AudioSink` or `SpatialAudioSink` has been drained.
+    /// the underlying [`AudioSink`](crate::AudioSink) or [`SpatialAudioSink`](crate::SpatialAudioSink) has been drained.
     ///
-    /// To replay a sound, the audio components provided by `AudioPlayer` must be removed and
+    /// To replay a sound, the audio components provided by [`AudioPlayer`] must be removed and
     /// added again.
     Once,
     /// Repeat the sound forever.
@@ -27,7 +28,7 @@ pub enum PlaybackMode {
 /// Initial settings to be used when audio starts playing.
 ///
 /// If you would like to control the audio while it is playing, query for the
-/// [`AudioSink`][crate::AudioSink] or [`SpatialAudioSink`][crate::SpatialAudioSink]
+/// [`AudioSink`](crate::AudioSink) or [`SpatialAudioSink`](crate::SpatialAudioSink)
 /// components. Changes to this component will *not* be applied to already-playing audio.
 #[derive(Component, Clone, Copy, Debug, Reflect)]
 #[reflect(Clone, Default, Component, Debug)]
@@ -78,10 +79,10 @@ impl Default for PlaybackSettings {
 impl PlaybackSettings {
     /// Will play the associated audio source once.
     ///
-    /// Note: It is not possible to reuse an `AudioPlayer` after it has finished playing and
+    /// Note: It is not possible to reuse an [`AudioPlayer`] after it has finished playing and
-    /// the underlying `AudioSink` or `SpatialAudioSink` has been drained.
+    /// the underlying [`AudioSink`](crate::AudioSink) or [`SpatialAudioSink`](crate::SpatialAudioSink) has been drained.
     ///
-    /// To replay a sound, the audio components provided by `AudioPlayer` must be removed and
+    /// To replay a sound, the audio components provided by [`AudioPlayer`] must be removed and
     /// added again.
     pub const ONCE: PlaybackSettings = PlaybackSettings {
         mode: PlaybackMode::Once,
@@ -164,14 +165,15 @@ impl PlaybackSettings {
 
 /// Settings for the listener for spatial audio sources.
 ///
-/// This must be accompanied by `Transform` and `GlobalTransform`.
+/// This is accompanied by [`Transform`] and [`GlobalTransform`](bevy_transform::prelude::GlobalTransform).
-/// Only one entity with a `SpatialListener` should be present at any given time.
+/// Only one entity with a [`SpatialListener`] should be present at any given time.
 #[derive(Component, Clone, Debug, Reflect)]
+#[require(Transform)]
 #[reflect(Clone, Default, Component, Debug)]
 pub struct SpatialListener {
-    /// Left ear position relative to the `GlobalTransform`.
+    /// Left ear position relative to the [`GlobalTransform`](bevy_transform::prelude::GlobalTransform).
     pub left_ear_offset: Vec3,
-    /// Right ear position relative to the `GlobalTransform`.
+    /// Right ear position relative to the [`GlobalTransform`](bevy_transform::prelude::GlobalTransform).
     pub right_ear_offset: Vec3,
 }
 
@@ -182,7 +184,7 @@ impl Default for SpatialListener {
 }
 
 impl SpatialListener {
-    /// Creates a new `SpatialListener` component.
+    /// Creates a new [`SpatialListener`] component.
     ///
     /// `gap` is the distance between the left and right "ears" of the listener. Ears are
     /// positioned on the x axis.
@@ -203,12 +205,12 @@ impl SpatialListener {
 pub struct SpatialScale(pub Vec3);
 
 impl SpatialScale {
-    /// Create a new `SpatialScale` with the same value for all 3 dimensions.
+    /// Create a new [`SpatialScale`] with the same value for all 3 dimensions.
     pub const fn new(scale: f32) -> Self {
         Self(Vec3::splat(scale))
     }
 
-    /// Create a new `SpatialScale` with the same value for `x` and `y`, and `0.0`
+    /// Create a new [`SpatialScale`] with the same value for `x` and `y`, and `0.0`
     /// for `z`.
     pub const fn new_2d(scale: f32) -> Self {
         Self(Vec3::new(scale, scale, 0.0))
@@ -238,11 +240,11 @@ pub struct DefaultSpatialScale(pub SpatialScale);
 /// If the handle refers to an unavailable asset (such as if it has not finished loading yet),
 /// the audio will not begin playing immediately. The audio will play when the asset is ready.
 ///
-/// When Bevy begins the audio playback, an [`AudioSink`][crate::AudioSink] component will be
+/// When Bevy begins the audio playback, an [`AudioSink`](crate::AudioSink) component will be
 /// added to the entity. You can use that component to control the audio settings during playback.
 ///
 /// Playback can be configured using the [`PlaybackSettings`] component. Note that changes to the
-/// `PlaybackSettings` component will *not* affect already-playing audio.
+/// [`PlaybackSettings`] component will *not* affect already-playing audio.
 #[derive(Component, Reflect)]
 #[reflect(Component, Clone)]
 #[require(PlaybackSettings)]

crates/bevy_audio/src/audio_output.rs

@@ -103,7 +103,7 @@ pub(crate) fn play_queued_audio_system<Source: Asset + Decodable>(
             Entity,
             &AudioPlayer<Source>,
             &PlaybackSettings,
-            Option<&GlobalTransform>,
+            &GlobalTransform,
         ),
         (Without<AudioSink>, Without<SpatialAudioSink>),
     >,
@@ -118,7 +118,7 @@ pub(crate) fn play_queued_audio_system<Source: Asset + Decodable>(
         return;
     };
 
-    for (entity, source_handle, settings, maybe_emitter_transform) in &query_nonplaying {
+    for (entity, source_handle, settings, emitter_transform) in &query_nonplaying {
         let Some(audio_source) = audio_sources.get(&source_handle.0) else {
             continue;
         };
@@ -136,14 +136,7 @@ pub(crate) fn play_queued_audio_system<Source: Asset + Decodable>(
             }
 
             let scale = settings.spatial_scale.unwrap_or(default_spatial_scale.0).0;
-
+            let emitter_translation = (emitter_transform.translation() * scale).into();
-            let emitter_translation = if let Some(emitter_transform) = maybe_emitter_transform {
-                (emitter_transform.translation() * scale).into()
-            } else {
-                warn!("Spatial AudioPlayer with no GlobalTransform component. Using zero.");
-                Vec3::ZERO.into()
-            };
-
             let sink = match SpatialSink::try_new(
                 stream_handle,
                 emitter_translation,

crates/bevy_core_pipeline/Cargo.toml

@@ -24,7 +24,6 @@ bevy_app = { path = "../bevy_app", version = "0.17.0-dev" }
 bevy_asset = { path = "../bevy_asset", version = "0.17.0-dev" }
 bevy_color = { path = "../bevy_color", version = "0.17.0-dev" }
 bevy_derive = { path = "../bevy_derive", version = "0.17.0-dev" }
-bevy_diagnostic = { path = "../bevy_diagnostic", version = "0.17.0-dev" }
 bevy_ecs = { path = "../bevy_ecs", version = "0.17.0-dev" }
 bevy_image = { path = "../bevy_image", version = "0.17.0-dev" }
 bevy_camera = { path = "../bevy_camera", version = "0.17.0-dev" }
@@ -39,14 +38,12 @@ bevy_platform = { path = "../bevy_platform", version = "0.17.0-dev", default-fea
   "serialize",
 ] }
 
-serde = { version = "1", features = ["derive"] }
 bitflags = "2.3"
 radsort = "0.1"
 nonmax = "0.5"
 smallvec = { version = "1", default-features = false }
 thiserror = { version = "2", default-features = false }
 tracing = { version = "0.1", default-features = false, features = ["std"] }
-bytemuck = { version = "1" }
 
 [lints]
 workspace = true

crates/bevy_core_pipeline/src/experimental/mip_generation/mod.rs

@@ -12,7 +12,7 @@ use crate::core_3d::{
     prepare_core_3d_depth_textures,
 };
 use bevy_app::{App, Plugin};
-use bevy_asset::{load_internal_asset, uuid_handle, Handle};
+use bevy_asset::{embedded_asset, load_embedded_asset, Handle};
 use bevy_derive::{Deref, DerefMut};
 use bevy_ecs::{
     component::Component,
@@ -51,8 +51,8 @@ use bitflags::bitflags;
 use tracing::debug;
 
 /// Identifies the `downsample_depth.wgsl` shader.
-pub const DOWNSAMPLE_DEPTH_SHADER_HANDLE: Handle<Shader> =
+#[derive(Resource, Deref)]
-    uuid_handle!("a09a149e-5922-4fa4-9170-3c1a13065364");
+pub struct DownsampleDepthShader(Handle<Shader>);
 
 /// The maximum number of mip levels that we can produce.
 ///
@@ -69,18 +69,16 @@ pub struct MipGenerationPlugin;
 
 impl Plugin for MipGenerationPlugin {
     fn build(&self, app: &mut App) {
-        load_internal_asset!(
+        embedded_asset!(app, "downsample_depth.wgsl");
-            app,
+
-            DOWNSAMPLE_DEPTH_SHADER_HANDLE,
+        let downsample_depth_shader = load_embedded_asset!(app, "downsample_depth.wgsl");
-            "downsample_depth.wgsl",
-            Shader::from_wgsl
-        );
 
         let Some(render_app) = app.get_sub_app_mut(RenderApp) else {
             return;
         };
 
         render_app
+            .insert_resource(DownsampleDepthShader(downsample_depth_shader))
             .init_resource::<SpecializedComputePipelines<DownsampleDepthPipeline>>()
             .add_render_graph_node::<DownsampleDepthNode>(Core3d, Node3d::EarlyDownsampleDepth)
             .add_render_graph_node::<DownsampleDepthNode>(Core3d, Node3d::LateDownsampleDepth)
@@ -294,17 +292,21 @@ pub struct DownsampleDepthPipeline {
     bind_group_layout: BindGroupLayout,
     /// A handle that identifies the compiled shader.
     pipeline_id: Option<CachedComputePipelineId>,
+    /// The shader asset handle.
+    shader: Handle<Shader>,
 }
 
 impl DownsampleDepthPipeline {
-    /// Creates a new [`DownsampleDepthPipeline`] from a bind group layout.
+    /// Creates a new [`DownsampleDepthPipeline`] from a bind group layout and the downsample
+    /// shader.
     ///
     /// This doesn't actually specialize the pipeline; that must be done
     /// afterward.
-    fn new(bind_group_layout: BindGroupLayout) -> DownsampleDepthPipeline {
+    fn new(bind_group_layout: BindGroupLayout, shader: Handle<Shader>) -> DownsampleDepthPipeline {
         DownsampleDepthPipeline {
             bind_group_layout,
             pipeline_id: None,
+            shader,
         }
     }
 }
@@ -335,6 +337,7 @@ fn create_downsample_depth_pipelines(
     pipeline_cache: Res<PipelineCache>,
     mut specialized_compute_pipelines: ResMut<SpecializedComputePipelines<DownsampleDepthPipeline>>,
     gpu_preprocessing_support: Res<GpuPreprocessingSupport>,
+    downsample_depth_shader: Res<DownsampleDepthShader>,
     mut has_run: Local<bool>,
 ) {
     // Only run once.
@@ -368,10 +371,22 @@ fn create_downsample_depth_pipelines(
 
     // Initialize the pipelines.
     let mut downsample_depth_pipelines = DownsampleDepthPipelines {
-        first: DownsampleDepthPipeline::new(standard_bind_group_layout.clone()),
+        first: DownsampleDepthPipeline::new(
-        second: DownsampleDepthPipeline::new(standard_bind_group_layout.clone()),
+            standard_bind_group_layout.clone(),
-        first_multisample: DownsampleDepthPipeline::new(multisampled_bind_group_layout.clone()),
+            downsample_depth_shader.0.clone(),
-        second_multisample: DownsampleDepthPipeline::new(multisampled_bind_group_layout.clone()),
+        ),
+        second: DownsampleDepthPipeline::new(
+            standard_bind_group_layout.clone(),
+            downsample_depth_shader.0.clone(),
+        ),
+        first_multisample: DownsampleDepthPipeline::new(
+            multisampled_bind_group_layout.clone(),
+            downsample_depth_shader.0.clone(),
+        ),
+        second_multisample: DownsampleDepthPipeline::new(
+            multisampled_bind_group_layout.clone(),
+            downsample_depth_shader.0.clone(),
+        ),
         sampler,
     };
 
@@ -491,7 +506,7 @@ impl SpecializedComputePipeline for DownsampleDepthPipeline {
                 stages: ShaderStages::COMPUTE,
                 range: 0..4,
             }],
-            shader: DOWNSAMPLE_DEPTH_SHADER_HANDLE,
+            shader: self.shader.clone(),
             shader_defs,
             entry_point: Some(if key.contains(DownsampleDepthPipelineKey::SECOND_PHASE) {
                 "downsample_depth_second".into()

crates/bevy_core_pipeline/src/post_process/mod.rs

@@ -3,7 +3,7 @@
 //! Currently, this consists only of chromatic aberration.
 
 use bevy_app::{App, Plugin};
-use bevy_asset::{embedded_asset, load_embedded_asset, uuid_handle, Assets, Handle};
+use bevy_asset::{embedded_asset, load_embedded_asset, Assets, Handle};
 use bevy_derive::{Deref, DerefMut};
 use bevy_ecs::{
     component::Component,
@@ -47,13 +47,6 @@ use crate::{
     FullscreenShader,
 };
 
-/// The handle to the default chromatic aberration lookup texture.
-///
-/// This is just a 3x1 image consisting of one red pixel, one green pixel, and
-/// one blue pixel, in that order.
-const DEFAULT_CHROMATIC_ABERRATION_LUT_HANDLE: Handle<Image> =
-    uuid_handle!("dc3e3307-40a1-49bb-be6d-e0634e8836b2");
-
 /// The default chromatic aberration intensity amount, in a fraction of the
 /// window size.
 const DEFAULT_CHROMATIC_ABERRATION_INTENSITY: f32 = 0.02;
@@ -68,6 +61,9 @@ const DEFAULT_CHROMATIC_ABERRATION_MAX_SAMPLES: u32 = 8;
 static DEFAULT_CHROMATIC_ABERRATION_LUT_DATA: [u8; 12] =
     [255, 0, 0, 255, 0, 255, 0, 255, 0, 0, 255, 255];
 
+#[derive(Resource)]
+struct DefaultChromaticAberrationLut(Handle<Image>);
+
 /// A plugin that implements a built-in postprocessing stack with some common
 /// effects.
 ///
@@ -96,14 +92,14 @@ pub struct PostProcessingPlugin;
 pub struct ChromaticAberration {
     /// The lookup texture that determines the color gradient.
     ///
-    /// By default, this is a 3×1 texel texture consisting of one red pixel, one
+    /// By default (if None), this is a 3×1 texel texture consisting of one red
-    /// green pixel, and one blue texel, in that order. This recreates the most
+    /// pixel, one green pixel, and one blue texel, in that order. This
-    /// typical chromatic aberration pattern. However, you can change it to
+    /// recreates the most typical chromatic aberration pattern. However, you
-    /// achieve different artistic effects.
+    /// can change it to achieve different artistic effects.
     ///
     /// The texture is always sampled in its vertical center, so it should
     /// ordinarily have a height of 1 texel.
-    pub color_lut: Handle<Image>,
+    pub color_lut: Option<Handle<Image>>,
 
     /// The size of the streaks around the edges of objects, as a fraction of
     /// the window size.
@@ -192,9 +188,7 @@ impl Plugin for PostProcessingPlugin {
 
         // Load the default chromatic aberration LUT.
         let mut assets = app.world_mut().resource_mut::<Assets<_>>();
-        assets.insert(
+        let default_lut = assets.add(Image::new(
-            DEFAULT_CHROMATIC_ABERRATION_LUT_HANDLE.id(),
-            Image::new(
             Extent3d {
                 width: 3,
                 height: 1,
@@ -204,8 +198,7 @@ impl Plugin for PostProcessingPlugin {
             DEFAULT_CHROMATIC_ABERRATION_LUT_DATA.to_vec(),
             TextureFormat::Rgba8UnormSrgb,
             RenderAssetUsages::RENDER_WORLD,
-            ),
+        ));
-        );
 
         app.register_type::<ChromaticAberration>();
         app.add_plugins(ExtractComponentPlugin::<ChromaticAberration>::default());
@@ -215,6 +208,7 @@ impl Plugin for PostProcessingPlugin {
         };
 
         render_app
+            .insert_resource(DefaultChromaticAberrationLut(default_lut))
             .init_resource::<SpecializedRenderPipelines<PostProcessingPipeline>>()
             .init_resource::<PostProcessingUniformBuffers>()
             .add_systems(
@@ -258,7 +252,7 @@ impl Plugin for PostProcessingPlugin {
 impl Default for ChromaticAberration {
     fn default() -> Self {
         Self {
-            color_lut: DEFAULT_CHROMATIC_ABERRATION_LUT_HANDLE,
+            color_lut: None,
             intensity: DEFAULT_CHROMATIC_ABERRATION_INTENSITY,
             max_samples: DEFAULT_CHROMATIC_ABERRATION_MAX_SAMPLES,
         }
@@ -357,6 +351,7 @@ impl ViewNode for PostProcessingNode {
         let post_processing_pipeline = world.resource::<PostProcessingPipeline>();
         let post_processing_uniform_buffers = world.resource::<PostProcessingUniformBuffers>();
         let gpu_image_assets = world.resource::<RenderAssets<GpuImage>>();
+        let default_lut = world.resource::<DefaultChromaticAberrationLut>();
 
         // We need a render pipeline to be prepared.
         let Some(pipeline) = pipeline_cache.get_render_pipeline(**pipeline_id) else {
@@ -364,8 +359,12 @@ impl ViewNode for PostProcessingNode {
         };
 
         // We need the chromatic aberration LUT to be present.
-        let Some(chromatic_aberration_lut) = gpu_image_assets.get(&chromatic_aberration.color_lut)
+        let Some(chromatic_aberration_lut) = gpu_image_assets.get(
-        else {
+            chromatic_aberration
+                .color_lut
+                .as_ref()
+                .unwrap_or(&default_lut.0),
+        ) else {
             return Ok(());
         };
 

crates/bevy_core_widgets/Cargo.toml

@@ -18,8 +18,6 @@ bevy_input_focus = { path = "../bevy_input_focus", version = "0.17.0-dev" }
 bevy_log = { path = "../bevy_log", version = "0.17.0-dev" }
 bevy_math = { path = "../bevy_math", version = "0.17.0-dev" }
 bevy_picking = { path = "../bevy_picking", version = "0.17.0-dev" }
-bevy_render = { path = "../bevy_render", version = "0.17.0-dev" }
-bevy_transform = { path = "../bevy_transform", version = "0.17.0-dev" }
 bevy_ui = { path = "../bevy_ui", version = "0.17.0-dev", features = [
   "bevy_ui_picking_backend",
 ] }

crates/bevy_core_widgets/src/core_slider.rs

@@ -176,7 +176,7 @@ impl Default for SliderRange {
 }
 
 /// Defines the amount by which to increment or decrement the slider value when using keyboard
-/// shorctuts. Defaults to 1.0.
+/// shortcuts. Defaults to 1.0.
 #[derive(Component, Debug, PartialEq, Clone)]
 #[component(immutable)]
 pub struct SliderStep(pub f32);

crates/bevy_dev_tools/Cargo.toml

@@ -18,14 +18,12 @@ bevy_asset = { path = "../bevy_asset", version = "0.17.0-dev" }
 bevy_color = { path = "../bevy_color", version = "0.17.0-dev" }
 bevy_diagnostic = { path = "../bevy_diagnostic", version = "0.17.0-dev" }
 bevy_ecs = { path = "../bevy_ecs", version = "0.17.0-dev" }
-bevy_input = { path = "../bevy_input", version = "0.17.0-dev" }
 bevy_picking = { path = "../bevy_picking", version = "0.17.0-dev" }
 bevy_render = { path = "../bevy_render", version = "0.17.0-dev" }
 bevy_reflect = { path = "../bevy_reflect", version = "0.17.0-dev" }
 bevy_time = { path = "../bevy_time", version = "0.17.0-dev" }
 bevy_text = { path = "../bevy_text", version = "0.17.0-dev" }
 bevy_ui = { path = "../bevy_ui", version = "0.17.0-dev" }
-bevy_utils = { path = "../bevy_utils", version = "0.17.0-dev" }
 bevy_window = { path = "../bevy_window", version = "0.17.0-dev" }
 bevy_state = { path = "../bevy_state", version = "0.17.0-dev" }
 

crates/bevy_dev_tools/src/ci_testing/systems.rs

@@ -18,7 +18,7 @@ pub(crate) fn send_events(world: &mut World, mut current_frame: Local<u32>) {
         debug!("Handling event: {:?}", event);
         match event {
             CiTestingEvent::AppExit => {
-                world.send_event(AppExit::Success);
+                world.write_event(AppExit::Success);
                 info!("Exiting after {} frames. Test successful!", *current_frame);
             }
             CiTestingEvent::ScreenshotAndExit => {
@@ -53,7 +53,7 @@ pub(crate) fn send_events(world: &mut World, mut current_frame: Local<u32>) {
             }
             // Custom events are forwarded to the world.
             CiTestingEvent::Custom(event_string) => {
-                world.send_event(CiTestingCustomEvent(event_string));
+                world.write_event(CiTestingCustomEvent(event_string));
             }
         }
     }

crates/bevy_diagnostic/Cargo.toml

@@ -56,7 +56,6 @@ critical-section = [
 bevy_app = { path = "../bevy_app", version = "0.17.0-dev", default-features = false }
 bevy_ecs = { path = "../bevy_ecs", version = "0.17.0-dev", default-features = false }
 bevy_time = { path = "../bevy_time", version = "0.17.0-dev", default-features = false }
-bevy_utils = { path = "../bevy_utils", version = "0.17.0-dev", default-features = false }
 bevy_tasks = { path = "../bevy_tasks", version = "0.17.0-dev", default-features = false }
 bevy_platform = { path = "../bevy_platform", version = "0.17.0-dev", default-features = false, features = [
   "alloc",

crates/bevy_ecs/src/archetype.rs

@@ -630,7 +630,7 @@ impl Archetype {
     #[inline]
     pub fn len(&self) -> u32 {
         // No entity may have more than one archetype row, so there are no duplicates,
-        // and there may only ever be u32::MAX entities, so the length never exceeds u32's cappacity.
+        // and there may only ever be u32::MAX entities, so the length never exceeds u32's capacity.
         self.entities.len() as u32
     }
 

crates/bevy_ecs/src/bundle.rs

@@ -1584,7 +1584,7 @@ impl<'w> BundleRemover<'w> {
         // Handle sparse set removes
         for component_id in self.bundle_info.as_ref().iter_explicit_components() {
             if self.old_archetype.as_ref().contains(component_id) {
-                world.removed_components.send(component_id, entity);
+                world.removed_components.write(component_id, entity);
 
                 // Make sure to drop components stored in sparse sets.
                 // Dense components are dropped later in `move_to_and_drop_missing_unchecked`.

crates/bevy_ecs/src/entity/clone_entities.rs

@@ -795,47 +795,34 @@ impl<'w> EntityClonerBuilder<'w, OptOut> {
     /// this behavior.
     pub fn deny<T: Bundle>(&mut self) -> &mut Self {
         let bundle_id = self.world.register_bundle::<T>().id();
-        self.deny_by_bundle_id(bundle_id)
+        self.deny_by_ids(bundle_id)
     }
 
-    /// Disallows all components of the bundle ID from being cloned.
+    /// Extends the list of components that shouldn't be cloned.
+    /// Supports filtering by [`TypeId`], [`ComponentId`], [`BundleId`], and [`IntoIterator`] yielding one of these.
     ///
     /// If component `A` is denied here and component `B` requires `A`, then `A`
     /// is denied as well. See [`Self::without_required_by_components`] to alter
     /// this behavior.
-    pub fn deny_by_bundle_id(&mut self, bundle_id: BundleId) -> &mut Self {
+    pub fn deny_by_ids<M: Marker>(&mut self, ids: impl FilterableIds<M>) -> &mut Self {
+        ids.filter_ids(&mut |ids| match ids {
+            FilterableId::Type(type_id) => {
+                if let Some(id) = self.world.components().get_valid_id(type_id) {
+                    self.filter.filter_deny(id, self.world);
+                }
+            }
+            FilterableId::Component(component_id) => {
+                self.filter.filter_deny(component_id, self.world);
+            }
+            FilterableId::Bundle(bundle_id) => {
                 if let Some(bundle) = self.world.bundles().get(bundle_id) {
                     let ids = bundle.explicit_components().iter();
                     for &id in ids {
                         self.filter.filter_deny(id, self.world);
                     }
                 }
-        self
-    }
-
-    /// Extends the list of components that shouldn't be cloned.
-    ///
-    /// If component `A` is denied here and component `B` requires `A`, then `A`
-    /// is denied as well. See [`Self::without_required_by_components`] to alter
-    /// this behavior.
-    pub fn deny_by_ids(&mut self, ids: impl IntoIterator<Item = ComponentId>) -> &mut Self {
-        for id in ids {
-            self.filter.filter_deny(id, self.world);
-        }
-        self
-    }
-
-    /// Extends the list of components that shouldn't be cloned by type ids.
-    ///
-    /// If component `A` is denied here and component `B` requires `A`, then `A`
-    /// is denied as well. See [`Self::without_required_by_components`] to alter
-    /// this behavior.
-    pub fn deny_by_type_ids(&mut self, ids: impl IntoIterator<Item = TypeId>) -> &mut Self {
-        for type_id in ids {
-            if let Some(id) = self.world.components().get_valid_id(type_id) {
-                self.filter.filter_deny(id, self.world);
-            }
             }
+        });
         self
     }
 }
@@ -865,7 +852,7 @@ impl<'w> EntityClonerBuilder<'w, OptIn> {
     /// to alter this behavior.
     pub fn allow<T: Bundle>(&mut self) -> &mut Self {
         let bundle_id = self.world.register_bundle::<T>().id();
-        self.allow_by_bundle_id(bundle_id)
+        self.allow_by_ids(bundle_id)
     }
 
     /// Adds all components of the bundle to the list of components to clone if
@@ -876,94 +863,55 @@ impl<'w> EntityClonerBuilder<'w, OptIn> {
     /// to alter this behavior.
     pub fn allow_if_new<T: Bundle>(&mut self) -> &mut Self {
         let bundle_id = self.world.register_bundle::<T>().id();
-        self.allow_by_bundle_id_if_new(bundle_id)
+        self.allow_by_ids_if_new(bundle_id)
-    }
-
-    /// Adds all components of the bundle ID to the list of components to clone.
-    ///
-    /// If component `A` is allowed here and requires component `B`, then `B`
-    /// is allowed as well. See [`Self::without_required_components`]
-    /// to alter this behavior.
-    pub fn allow_by_bundle_id(&mut self, bundle_id: BundleId) -> &mut Self {
-        if let Some(bundle) = self.world.bundles().get(bundle_id) {
-            let ids = bundle.explicit_components().iter();
-            for &id in ids {
-                self.filter
-                    .filter_allow(id, self.world, InsertMode::Replace);
-            }
-        }
-        self
-    }
-
-    /// Adds all components of the bundle ID to the list of components to clone
-    /// if the target does not contain them.
-    ///
-    /// If component `A` is allowed here and requires component `B`, then `B`
-    /// is allowed as well. See [`Self::without_required_components`]
-    /// to alter this behavior.
-    pub fn allow_by_bundle_id_if_new(&mut self, bundle_id: BundleId) -> &mut Self {
-        if let Some(bundle) = self.world.bundles().get(bundle_id) {
-            let ids = bundle.explicit_components().iter();
-            for &id in ids {
-                self.filter.filter_allow(id, self.world, InsertMode::Keep);
-            }
-        }
-        self
     }
 
     /// Extends the list of components to clone.
+    /// Supports filtering by [`TypeId`], [`ComponentId`], [`BundleId`], and [`IntoIterator`] yielding one of these.
     ///
     /// If component `A` is allowed here and requires component `B`, then `B`
     /// is allowed as well. See [`Self::without_required_components`]
     /// to alter this behavior.
-    pub fn allow_by_ids(&mut self, ids: impl IntoIterator<Item = ComponentId>) -> &mut Self {
+    pub fn allow_by_ids<M: Marker>(&mut self, ids: impl FilterableIds<M>) -> &mut Self {
-        for id in ids {
+        self.allow_by_ids_inner(ids, InsertMode::Replace);
-            self.filter
-                .filter_allow(id, self.world, InsertMode::Replace);
-        }
         self
     }
 
     /// Extends the list of components to clone if the target does not contain them.
+    /// Supports filtering by [`TypeId`], [`ComponentId`], [`BundleId`], and [`IntoIterator`] yielding one of these.
     ///
     /// If component `A` is allowed here and requires component `B`, then `B`
     /// is allowed as well. See [`Self::without_required_components`]
     /// to alter this behavior.
-    pub fn allow_by_ids_if_new(&mut self, ids: impl IntoIterator<Item = ComponentId>) -> &mut Self {
+    pub fn allow_by_ids_if_new<M: Marker>(&mut self, ids: impl FilterableIds<M>) -> &mut Self {
-        for id in ids {
+        self.allow_by_ids_inner(ids, InsertMode::Keep);
-            self.filter.filter_allow(id, self.world, InsertMode::Keep);
-        }
         self
     }
 
-    /// Extends the list of components to clone using [`TypeId`]s.
+    fn allow_by_ids_inner<M: Marker>(
-    ///
+        &mut self,
-    /// If component `A` is allowed here and requires component `B`, then `B`
+        ids: impl FilterableIds<M>,
-    /// is allowed as well. See [`Self::without_required_components`]
+        insert_mode: InsertMode,
-    /// to alter this behavior.
+    ) {
-    pub fn allow_by_type_ids(&mut self, ids: impl IntoIterator<Item = TypeId>) -> &mut Self {
+        ids.filter_ids(&mut |id| match id {
-        for type_id in ids {
+            FilterableId::Type(type_id) => {
                 if let Some(id) = self.world.components().get_valid_id(type_id) {
+                    self.filter.filter_allow(id, self.world, insert_mode);
+                }
+            }
+            FilterableId::Component(component_id) => {
                 self.filter
-                    .filter_allow(id, self.world, InsertMode::Replace);
+                    .filter_allow(component_id, self.world, insert_mode);
+            }
+            FilterableId::Bundle(bundle_id) => {
+                if let Some(bundle) = self.world.bundles().get(bundle_id) {
+                    let ids = bundle.explicit_components().iter();
+                    for &id in ids {
+                        self.filter.filter_allow(id, self.world, insert_mode);
                     }
                 }
-        self
             }
-
+        });
-    /// Extends the list of components to clone using [`TypeId`]s if the target
-    /// does not contain them.
-    ///
-    /// If component `A` is allowed here and requires component `B`, then `B`
-    /// is allowed as well. See [`Self::without_required_components`]
-    /// to alter this behavior.
-    pub fn allow_by_type_ids_if_new(&mut self, ids: impl IntoIterator<Item = TypeId>) -> &mut Self {
-        for type_id in ids {
-            if let Some(id) = self.world.components().get_valid_id(type_id) {
-                self.filter.filter_allow(id, self.world, InsertMode::Keep);
-            }
-        }
-        self
     }
 }
 
@@ -1309,6 +1257,77 @@ impl Required {
     }
 }
 
+mod private {
+    use super::*;
+
+    /// Marker trait to allow multiple blanket implementations for [`FilterableIds`].
+    pub trait Marker {}
+    /// Marker struct for [`FilterableIds`] implementation for single-value types.
+    pub struct ScalarType {}
+    impl Marker for ScalarType {}
+    /// Marker struct for [`FilterableIds`] implementation for [`IntoIterator`] types.
+    pub struct VectorType {}
+    impl Marker for VectorType {}
+
+    /// Defines types of ids that [`EntityClonerBuilder`] can filter components by.
+    #[derive(From)]
+    pub enum FilterableId {
+        Type(TypeId),
+        Component(ComponentId),
+        Bundle(BundleId),
+    }
+
+    impl<'a, T> From<&'a T> for FilterableId
+    where
+        T: Into<FilterableId> + Copy,
+    {
+        #[inline]
+        fn from(value: &'a T) -> Self {
+            (*value).into()
+        }
+    }
+
+    /// A trait to allow [`EntityClonerBuilder`] filter by any supported id type and their iterators,
+    /// reducing the number of method permutations required for all id types.
+    ///
+    /// The supported id types that can be used to filter components are defined by [`FilterableId`], which allows following types: [`TypeId`], [`ComponentId`] and [`BundleId`].
+    ///
+    /// `M` is a generic marker to allow multiple blanket implementations of this trait.
+    /// This works because `FilterableId<M1>` is a different trait from `FilterableId<M2>`, so multiple blanket implementations for different `M` are allowed.
+    /// The reason this is required is because supporting `IntoIterator` requires blanket implementation, but that will conflict with implementation for `TypeId`
+    /// since `IntoIterator` can technically be implemented for `TypeId` in the future.
+    /// Functions like `allow_by_ids` rely on type inference to automatically select proper type for `M` at call site.
+    pub trait FilterableIds<M: Marker> {
+        /// Takes in a function that processes all types of [`FilterableId`] one-by-one.
+        fn filter_ids(self, ids: &mut impl FnMut(FilterableId));
+    }
+
+    impl<I, T> FilterableIds<VectorType> for I
+    where
+        I: IntoIterator<Item = T>,
+        T: Into<FilterableId>,
+    {
+        #[inline]
+        fn filter_ids(self, ids: &mut impl FnMut(FilterableId)) {
+            for id in self.into_iter() {
+                ids(id.into());
+            }
+        }
+    }
+
+    impl<T> FilterableIds<ScalarType> for T
+    where
+        T: Into<FilterableId>,
+    {
+        #[inline]
+        fn filter_ids(self, ids: &mut impl FnMut(FilterableId)) {
+            ids(self.into());
+        }
+    }
+}
+
+use private::{FilterableId, FilterableIds, Marker};
+
 #[cfg(test)]
 mod tests {
     use super::*;

crates/bevy_ecs/src/event/collections.rs

@@ -54,8 +54,8 @@ use {
 /// // run this once per update/frame
 /// events.update();
 ///
-/// // somewhere else: send an event
+/// // somewhere else: write an event
-/// events.send(MyEvent { value: 1 });
+/// events.write(MyEvent { value: 1 });
 ///
 /// // somewhere else: read the events
 /// for event in cursor.read(&events) {
@@ -118,22 +118,22 @@ impl<E: BufferedEvent> Events<E> {
         self.events_a.start_event_count
     }
 
-    /// "Sends" an `event` by writing it to the current event buffer.
+    /// Writes an `event` to the current event buffer.
     /// [`EventReader`](super::EventReader)s can then read the event.
-    /// This method returns the [ID](`EventId`) of the sent `event`.
+    /// This method returns the [ID](`EventId`) of the written `event`.
     #[track_caller]
-    pub fn send(&mut self, event: E) -> EventId<E> {
+    pub fn write(&mut self, event: E) -> EventId<E> {
-        self.send_with_caller(event, MaybeLocation::caller())
+        self.write_with_caller(event, MaybeLocation::caller())
     }
 
-    pub(crate) fn send_with_caller(&mut self, event: E, caller: MaybeLocation) -> EventId<E> {
+    pub(crate) fn write_with_caller(&mut self, event: E, caller: MaybeLocation) -> EventId<E> {
         let event_id = EventId {
             id: self.event_count,
             caller,
             _marker: PhantomData,
         };
         #[cfg(feature = "detailed_trace")]
-        tracing::trace!("Events::send() -> id: {}", event_id);
+        tracing::trace!("Events::write() -> id: {}", event_id);
 
         let event_instance = EventInstance { event_id, event };
 
@@ -143,30 +143,59 @@ impl<E: BufferedEvent> Events<E> {
         event_id
     }
 
-    /// Sends a list of `events` all at once, which can later be read by [`EventReader`](super::EventReader)s.
+    /// Writes a list of `events` all at once, which can later be read by [`EventReader`](super::EventReader)s.
-    /// This is more efficient than sending each event individually.
+    /// This is more efficient than writing each event individually.
-    /// This method returns the [IDs](`EventId`) of the sent `events`.
+    /// This method returns the [IDs](`EventId`) of the written `events`.
     #[track_caller]
-    pub fn send_batch(&mut self, events: impl IntoIterator<Item = E>) -> SendBatchIds<E> {
+    pub fn write_batch(&mut self, events: impl IntoIterator<Item = E>) -> WriteBatchIds<E> {
         let last_count = self.event_count;
 
         self.extend(events);
 
-        SendBatchIds {
+        WriteBatchIds {
             last_count,
             event_count: self.event_count,
             _marker: PhantomData,
         }
     }
 
+    /// Writes the default value of the event. Useful when the event is an empty struct.
+    /// This method returns the [ID](`EventId`) of the written `event`.
+    #[track_caller]
+    pub fn write_default(&mut self) -> EventId<E>
+    where
+        E: Default,
+    {
+        self.write(Default::default())
+    }
+
+    /// "Sends" an `event` by writing it to the current event buffer.
+    /// [`EventReader`](super::EventReader)s can then read the event.
+    /// This method returns the [ID](`EventId`) of the sent `event`.
+    #[deprecated(since = "0.17.0", note = "Use `Events<E>::write` instead.")]
+    #[track_caller]
+    pub fn send(&mut self, event: E) -> EventId<E> {
+        self.write(event)
+    }
+
+    /// Sends a list of `events` all at once, which can later be read by [`EventReader`](super::EventReader)s.
+    /// This is more efficient than sending each event individually.
+    /// This method returns the [IDs](`EventId`) of the sent `events`.
+    #[deprecated(since = "0.17.0", note = "Use `Events<E>::write_batch` instead.")]
+    #[track_caller]
+    pub fn send_batch(&mut self, events: impl IntoIterator<Item = E>) -> WriteBatchIds<E> {
+        self.write_batch(events)
+    }
+
     /// Sends the default value of the event. Useful when the event is an empty struct.
     /// This method returns the [ID](`EventId`) of the sent `event`.
+    #[deprecated(since = "0.17.0", note = "Use `Events<E>::write_default` instead.")]
     #[track_caller]
     pub fn send_default(&mut self) -> EventId<E>
     where
         E: Default,
     {
-        self.send(Default::default())
+        self.write_default()
     }
 
     /// Gets a new [`EventCursor`]. This will include all events already in the event buffers.
@@ -351,14 +380,18 @@ impl<E: BufferedEvent> DerefMut for EventSequence<E> {
     }
 }
 
-/// [`Iterator`] over sent [`EventIds`](`EventId`) from a batch.
+/// [`Iterator`] over written [`EventIds`](`EventId`) from a batch.
-pub struct SendBatchIds<E> {
+pub struct WriteBatchIds<E> {
     last_count: usize,
     event_count: usize,
     _marker: PhantomData<E>,
 }
 
-impl<E: BufferedEvent> Iterator for SendBatchIds<E> {
+/// [`Iterator`] over sent [`EventIds`](`EventId`) from a batch.
+#[deprecated(since = "0.17.0", note = "Use `WriteBatchIds` instead.")]
+pub type SendBatchIds<E> = WriteBatchIds<E>;
+
+impl<E: BufferedEvent> Iterator for WriteBatchIds<E> {
     type Item = EventId<E>;
 
     fn next(&mut self) -> Option<Self::Item> {
@@ -378,7 +411,7 @@ impl<E: BufferedEvent> Iterator for SendBatchIds<E> {
     }
 }
 
-impl<E: BufferedEvent> ExactSizeIterator for SendBatchIds<E> {
+impl<E: BufferedEvent> ExactSizeIterator for WriteBatchIds<E> {
     fn len(&self) -> usize {
         self.event_count.saturating_sub(self.last_count)
     }
@@ -400,22 +433,22 @@ mod tests {
         assert_eq!(test_events.iter_current_update_events().count(), 0);
         test_events.update();
 
-        // Sending one event
+        // Writing one event
-        test_events.send(TestEvent);
+        test_events.write(TestEvent);
 
         assert_eq!(test_events.len(), 1);
         assert_eq!(test_events.iter_current_update_events().count(), 1);
         test_events.update();
 
-        // Sending two events on the next frame
+        // Writing two events on the next frame
-        test_events.send(TestEvent);
+        test_events.write(TestEvent);
-        test_events.send(TestEvent);
+        test_events.write(TestEvent);
 
         assert_eq!(test_events.len(), 3); // Events are double-buffered, so we see 1 + 2 = 3
         assert_eq!(test_events.iter_current_update_events().count(), 2);
         test_events.update();
 
-        // Sending zero events
+        // Writing zero events
         assert_eq!(test_events.len(), 2); // Events are double-buffered, so we see 2 + 0 = 2
         assert_eq!(test_events.iter_current_update_events().count(), 0);
     }

crates/bevy_ecs/src/event/event_cursor.rs

@@ -41,7 +41,7 @@ use core::marker::PhantomData;
 ///     }
 ///
 ///     for event in events_to_resend {
-///         events.send(MyEvent);
+///         events.write(MyEvent);
 ///     }
 /// }
 ///

crates/bevy_ecs/src/event/mod.rs

@@ -13,7 +13,8 @@ mod writer;
 pub(crate) use base::EventInstance;
 pub use base::{BufferedEvent, EntityEvent, Event, EventId, EventKey};
 pub use bevy_ecs_macros::{BufferedEvent, EntityEvent, Event};
-pub use collections::{Events, SendBatchIds};
+#[expect(deprecated, reason = "`SendBatchIds` was renamed to `WriteBatchIds`.")]
+pub use collections::{Events, SendBatchIds, WriteBatchIds};
 pub use event_cursor::EventCursor;
 #[cfg(feature = "multi_threaded")]
 pub use iterators::EventParIter;
@@ -68,7 +69,7 @@ mod tests {
 
         let mut reader_a: EventCursor<TestEvent> = events.get_cursor();
 
-        events.send(event_0);
+        events.write(event_0);
 
         assert_eq!(
             get_events(&events, &mut reader_a),
@@ -94,7 +95,7 @@ mod tests {
             "second iteration of reader_b created after event results in zero events"
         );
 
-        events.send(event_1);
+        events.write(event_1);
 
         let mut reader_c = events.get_cursor();
 
@@ -119,7 +120,7 @@ mod tests {
 
         let mut reader_d = events.get_cursor();
 
-        events.send(event_2);
+        events.write(event_2);
 
         assert_eq!(
             get_events(&events, &mut reader_a),
@@ -153,17 +154,17 @@ mod tests {
 
         assert!(reader.read(&events).next().is_none());
 
-        events.send(TestEvent { i: 0 });
+        events.write(TestEvent { i: 0 });
         assert_eq!(*reader.read(&events).next().unwrap(), TestEvent { i: 0 });
         assert_eq!(reader.read(&events).next(), None);
 
-        events.send(TestEvent { i: 1 });
+        events.write(TestEvent { i: 1 });
         clear_func(&mut events);
         assert!(reader.read(&events).next().is_none());
 
-        events.send(TestEvent { i: 2 });
+        events.write(TestEvent { i: 2 });
         events.update();
-        events.send(TestEvent { i: 3 });
+        events.write(TestEvent { i: 3 });
 
         assert!(reader
             .read(&events)
@@ -185,22 +186,22 @@ mod tests {
     }
 
     #[test]
-    fn test_events_send_default() {
+    fn test_events_write_default() {
         let mut events = Events::<EmptyTestEvent>::default();
-        events.send_default();
+        events.write_default();
 
         let mut reader = events.get_cursor();
         assert_eq!(get_events(&events, &mut reader), vec![EmptyTestEvent]);
     }
 
     #[test]
-    fn test_send_events_ids() {
+    fn test_write_events_ids() {
         let mut events = Events::<TestEvent>::default();
         let event_0 = TestEvent { i: 0 };
         let event_1 = TestEvent { i: 1 };
         let event_2 = TestEvent { i: 2 };
 
-        let event_0_id = events.send(event_0);
+        let event_0_id = events.write(event_0);
 
         assert_eq!(
             events.get_event(event_0_id.id),
@@ -208,7 +209,7 @@ mod tests {
             "Getting a sent event by ID should return the original event"
         );
 
-        let mut event_ids = events.send_batch([event_1, event_2]);
+        let mut event_ids = events.write_batch([event_1, event_2]);
 
         let event_id = event_ids.next().expect("Event 1 must have been sent");
 
@@ -253,14 +254,14 @@ mod tests {
         let mut events = Events::<TestEvent>::default();
         let mut reader = events.get_cursor();
 
-        events.send(TestEvent { i: 0 });
+        events.write(TestEvent { i: 0 });
-        events.send(TestEvent { i: 1 });
+        events.write(TestEvent { i: 1 });
         assert_eq!(reader.read(&events).count(), 2);
 
         let mut old_events = Vec::from_iter(events.update_drain());
         assert!(old_events.is_empty());
 
-        events.send(TestEvent { i: 2 });
+        events.write(TestEvent { i: 2 });
         assert_eq!(reader.read(&events).count(), 1);
 
         old_events.extend(events.update_drain());
@@ -278,7 +279,7 @@ mod tests {
         let mut events = Events::<TestEvent>::default();
         assert!(events.is_empty());
 
-        events.send(TestEvent { i: 0 });
+        events.write(TestEvent { i: 0 });
         assert!(!events.is_empty());
 
         events.update();
@@ -308,12 +309,12 @@ mod tests {
         let mut cursor = events.get_cursor();
         assert!(cursor.read(&events).next().is_none());
 
-        events.send(TestEvent { i: 0 });
+        events.write(TestEvent { i: 0 });
         let sent_event = cursor.read(&events).next().unwrap();
         assert_eq!(sent_event, &TestEvent { i: 0 });
         assert!(cursor.read(&events).next().is_none());
 
-        events.send(TestEvent { i: 2 });
+        events.write(TestEvent { i: 2 });
         let sent_event = cursor.read(&events).next().unwrap();
         assert_eq!(sent_event, &TestEvent { i: 2 });
         assert!(cursor.read(&events).next().is_none());
@@ -330,7 +331,7 @@ mod tests {
         assert!(write_cursor.read_mut(&mut events).next().is_none());
         assert!(read_cursor.read(&events).next().is_none());
 
-        events.send(TestEvent { i: 0 });
+        events.write(TestEvent { i: 0 });
         let sent_event = write_cursor.read_mut(&mut events).next().unwrap();
         assert_eq!(sent_event, &mut TestEvent { i: 0 });
         *sent_event = TestEvent { i: 1 }; // Mutate whole event
@@ -340,7 +341,7 @@ mod tests {
         );
         assert!(read_cursor.read(&events).next().is_none());
 
-        events.send(TestEvent { i: 2 });
+        events.write(TestEvent { i: 2 });
         let sent_event = write_cursor.read_mut(&mut events).next().unwrap();
         assert_eq!(sent_event, &mut TestEvent { i: 2 });
         sent_event.i = 3; // Mutate sub value
@@ -360,7 +361,7 @@ mod tests {
         let mut events = Events::<TestEvent>::default();
         let mut reader = events.get_cursor();
 
-        events.send(TestEvent { i: 0 });
+        events.write(TestEvent { i: 0 });
         assert_eq!(reader.len(&events), 1);
         reader.clear(&events);
         assert_eq!(reader.len(&events), 0);
@@ -369,12 +370,12 @@ mod tests {
     #[test]
     fn test_event_cursor_len_update() {
         let mut events = Events::<TestEvent>::default();
-        events.send(TestEvent { i: 0 });
+        events.write(TestEvent { i: 0 });
-        events.send(TestEvent { i: 0 });
+        events.write(TestEvent { i: 0 });
         let reader = events.get_cursor();
         assert_eq!(reader.len(&events), 2);
         events.update();
-        events.send(TestEvent { i: 0 });
+        events.write(TestEvent { i: 0 });
         assert_eq!(reader.len(&events), 3);
         events.update();
         assert_eq!(reader.len(&events), 1);
@@ -385,10 +386,10 @@ mod tests {
     #[test]
     fn test_event_cursor_len_current() {
         let mut events = Events::<TestEvent>::default();
-        events.send(TestEvent { i: 0 });
+        events.write(TestEvent { i: 0 });
         let reader = events.get_cursor_current();
         assert!(reader.is_empty(&events));
-        events.send(TestEvent { i: 0 });
+        events.write(TestEvent { i: 0 });
         assert_eq!(reader.len(&events), 1);
         assert!(!reader.is_empty(&events));
     }
@@ -396,9 +397,9 @@ mod tests {
     #[test]
     fn test_event_cursor_iter_len_updated() {
         let mut events = Events::<TestEvent>::default();
-        events.send(TestEvent { i: 0 });
+        events.write(TestEvent { i: 0 });
-        events.send(TestEvent { i: 1 });
+        events.write(TestEvent { i: 1 });
-        events.send(TestEvent { i: 2 });
+        events.write(TestEvent { i: 2 });
         let mut reader = events.get_cursor();
         let mut iter = reader.read(&events);
         assert_eq!(iter.len(), 3);
@@ -420,7 +421,7 @@ mod tests {
     #[test]
     fn test_event_cursor_len_filled() {
         let mut events = Events::<TestEvent>::default();
-        events.send(TestEvent { i: 0 });
+        events.write(TestEvent { i: 0 });
         assert_eq!(events.get_cursor().len(&events), 1);
         assert!(!events.get_cursor().is_empty(&events));
     }
@@ -437,7 +438,7 @@ mod tests {
         let mut world = World::new();
         world.init_resource::<Events<TestEvent>>();
         for _ in 0..100 {
-            world.send_event(TestEvent { i: 1 });
+            world.write_event(TestEvent { i: 1 });
         }
 
         let mut schedule = Schedule::default();
@@ -479,7 +480,7 @@ mod tests {
         let mut world = World::new();
         world.init_resource::<Events<TestEvent>>();
         for _ in 0..100 {
-            world.send_event(TestEvent { i: 1 });
+            world.write_event(TestEvent { i: 1 });
         }
         let mut schedule = Schedule::default();
         schedule.add_systems(
@@ -531,13 +532,13 @@ mod tests {
         let last = reader.run((), &mut world).unwrap();
         assert!(last.is_none(), "EventReader should be empty");
 
-        world.send_event(TestEvent { i: 0 });
+        world.write_event(TestEvent { i: 0 });
         let last = reader.run((), &mut world).unwrap();
         assert_eq!(last, Some(TestEvent { i: 0 }));
 
-        world.send_event(TestEvent { i: 1 });
+        world.write_event(TestEvent { i: 1 });
-        world.send_event(TestEvent { i: 2 });
+        world.write_event(TestEvent { i: 2 });
-        world.send_event(TestEvent { i: 3 });
+        world.write_event(TestEvent { i: 3 });
         let last = reader.run((), &mut world).unwrap();
         assert_eq!(last, Some(TestEvent { i: 3 }));
 
@@ -561,13 +562,13 @@ mod tests {
         let last = mutator.run((), &mut world).unwrap();
         assert!(last.is_none(), "EventMutator should be empty");
 
-        world.send_event(TestEvent { i: 0 });
+        world.write_event(TestEvent { i: 0 });
         let last = mutator.run((), &mut world).unwrap();
         assert_eq!(last, Some(TestEvent { i: 0 }));
 
-        world.send_event(TestEvent { i: 1 });
+        world.write_event(TestEvent { i: 1 });
-        world.send_event(TestEvent { i: 2 });
+        world.write_event(TestEvent { i: 2 });
-        world.send_event(TestEvent { i: 3 });
+        world.write_event(TestEvent { i: 3 });
         let last = mutator.run((), &mut world).unwrap();
         assert_eq!(last, Some(TestEvent { i: 3 }));
 
@@ -582,11 +583,11 @@ mod tests {
         let mut world = World::new();
         world.init_resource::<Events<TestEvent>>();
 
-        world.send_event(TestEvent { i: 0 });
+        world.write_event(TestEvent { i: 0 });
-        world.send_event(TestEvent { i: 1 });
+        world.write_event(TestEvent { i: 1 });
-        world.send_event(TestEvent { i: 2 });
+        world.write_event(TestEvent { i: 2 });
-        world.send_event(TestEvent { i: 3 });
+        world.write_event(TestEvent { i: 3 });
-        world.send_event(TestEvent { i: 4 });
+        world.write_event(TestEvent { i: 4 });
 
         let mut schedule = Schedule::default();
         schedule.add_systems(|mut events: EventReader<TestEvent>| {
@@ -608,11 +609,11 @@ mod tests {
         let mut world = World::new();
         world.init_resource::<Events<TestEvent>>();
 
-        world.send_event(TestEvent { i: 0 });
+        world.write_event(TestEvent { i: 0 });
-        world.send_event(TestEvent { i: 1 });
+        world.write_event(TestEvent { i: 1 });
-        world.send_event(TestEvent { i: 2 });
+        world.write_event(TestEvent { i: 2 });
-        world.send_event(TestEvent { i: 3 });
+        world.write_event(TestEvent { i: 3 });
-        world.send_event(TestEvent { i: 4 });
+        world.write_event(TestEvent { i: 4 });
 
         let mut schedule = Schedule::default();
         schedule.add_systems(|mut events: EventReader<TestEvent>| {

crates/bevy_ecs/src/event/mutator.rs

@@ -89,7 +89,7 @@ impl<'w, 's, E: BufferedEvent> EventMutator<'w, 's, E> {
     ///     });
     /// });
     /// for value in 0..100 {
-    ///     world.send_event(MyEvent { value });
+    ///     world.write_event(MyEvent { value });
     /// }
     /// schedule.run(&mut world);
     /// let Counter(counter) = world.remove_resource::<Counter>().unwrap();

crates/bevy_ecs/src/event/reader.rs

@@ -61,7 +61,7 @@ impl<'w, 's, E: BufferedEvent> EventReader<'w, 's, E> {
     ///     });
     /// });
     /// for value in 0..100 {
-    ///     world.send_event(MyEvent { value });
+    ///     world.write_event(MyEvent { value });
     /// }
     /// schedule.run(&mut world);
     /// let Counter(counter) = world.remove_resource::<Counter>().unwrap();

crates/bevy_ecs/src/event/writer.rs

@@ -1,9 +1,9 @@
 use bevy_ecs::{
-    event::{BufferedEvent, EventId, Events, SendBatchIds},
+    event::{BufferedEvent, EventId, Events, WriteBatchIds},
     system::{ResMut, SystemParam},
 };
 
-/// Sends [`BufferedEvent`]s of type `T`.
+/// Writes [`BufferedEvent`]s of type `T`.
 ///
 /// # Usage
 ///
@@ -34,14 +34,14 @@ use bevy_ecs::{
 ///
 /// `EventWriter` can only write events of one specific type, which must be known at compile-time.
 /// This is not a problem most of the time, but you may find a situation where you cannot know
-/// ahead of time every kind of event you'll need to send. In this case, you can use the "type-erased event" pattern.
+/// ahead of time every kind of event you'll need to write. In this case, you can use the "type-erased event" pattern.
 ///
 /// ```
 /// # use bevy_ecs::{prelude::*, event::Events};
 /// # #[derive(Event, BufferedEvent)]
 /// # pub struct MyEvent;
-/// fn send_untyped(mut commands: Commands) {
+/// fn write_untyped(mut commands: Commands) {
-///     // Send an event of a specific type without having to declare that
+///     // Write an event of a specific type without having to declare that
 ///     // type as a SystemParam.
 ///     //
 ///     // Effectively, we're just moving the type parameter from the /type/ to the /method/,
@@ -51,7 +51,7 @@ use bevy_ecs::{
 ///     // NOTE: the event won't actually be sent until commands get applied during
 ///     // apply_deferred.
 ///     commands.queue(|w: &mut World| {
-///         w.send_event(MyEvent);
+///         w.write_event(MyEvent);
 ///     });
 /// }
 /// ```
@@ -72,18 +72,18 @@ impl<'w, E: BufferedEvent> EventWriter<'w, E> {
     #[doc(alias = "send")]
     #[track_caller]
     pub fn write(&mut self, event: E) -> EventId<E> {
-        self.events.send(event)
+        self.events.write(event)
     }
 
-    /// Sends a list of `events` all at once, which can later be read by [`EventReader`](super::EventReader)s.
+    /// Writes a list of `events` all at once, which can later be read by [`EventReader`](super::EventReader)s.
-    /// This is more efficient than sending each event individually.
+    /// This is more efficient than writing each event individually.
     /// This method returns the [IDs](`EventId`) of the written `events`.
     ///
     /// See [`Events`] for details.
     #[doc(alias = "send_batch")]
     #[track_caller]
-    pub fn write_batch(&mut self, events: impl IntoIterator<Item = E>) -> SendBatchIds<E> {
+    pub fn write_batch(&mut self, events: impl IntoIterator<Item = E>) -> WriteBatchIds<E> {
-        self.events.send_batch(events)
+        self.events.write_batch(events)
     }
 
     /// Writes the default value of the event. Useful when the event is an empty struct.
@@ -96,6 +96,6 @@ impl<'w, E: BufferedEvent> EventWriter<'w, E> {
     where
         E: Default,
     {
-        self.events.send_default()
+        self.events.write_default()
     }
 }

crates/bevy_ecs/src/hierarchy.rs

@@ -455,15 +455,13 @@ pub fn validate_parent_has_component<C: Component>(
     let Some(child_of) = entity_ref.get::<ChildOf>() else {
         return;
     };
-    if !world
+    let parent = child_of.parent();
-        .get_entity(child_of.parent())
+    if !world.get_entity(parent).is_ok_and(|e| e.contains::<C>()) {
-        .is_ok_and(|e| e.contains::<C>())
-    {
         // TODO: print name here once Name lives in bevy_ecs
         let name: Option<String> = None;
         let debug_name = DebugName::type_name::<C>();
         warn!(
-            "warning[B0004]: {}{name} with the {ty_name} component has a parent without {ty_name}.\n\
+            "warning[B0004]: {}{name} with the {ty_name} component has a parent ({parent}) without {ty_name}.\n\
             This will cause inconsistent behaviors! See: https://bevy.org/learn/errors/b0004",
             caller.map(|c| format!("{c}: ")).unwrap_or_default(),
             ty_name = debug_name.shortname(),

crates/bevy_ecs/src/lifecycle.rs

@@ -465,10 +465,16 @@ impl RemovedComponentEvents {
     }
 
     /// Sends a removal event for the specified component.
+    #[deprecated(since = "0.17.0", note = "Use `RemovedComponentEvents:write` instead.")]
     pub fn send(&mut self, component_id: impl Into<ComponentId>, entity: Entity) {
+        self.write(component_id, entity);
+    }
+
+    /// Writes a removal event for the specified component.
+    pub fn write(&mut self, component_id: impl Into<ComponentId>, entity: Entity) {
         self.event_sets
             .get_or_insert_with(component_id.into(), Default::default)
-            .send(RemovedComponentEntity(entity));
+            .write(RemovedComponentEntity(entity));
     }
 }
 

crates/bevy_ecs/src/relationship/mod.rs

@@ -133,7 +133,7 @@ pub trait Relationship: Component + Sized {
                 .and_modify(move |mut relationship_target| {
                     relationship_target.collection_mut_risky().add(entity);
                 })
-                .or_insert_with(|| {
+                .or_insert_with(move || {
                     let mut target = Self::RelationshipTarget::with_capacity(1);
                     target.collection_mut_risky().add(entity);
                     target

crates/bevy_ecs/src/schedule/condition.rs

@@ -875,7 +875,7 @@ pub mod common_conditions {
     /// app.run(&mut world);
     /// assert_eq!(world.resource::<Counter>().0, 0);
     ///
-    /// world.resource_mut::<Events<MyEvent>>().send(MyEvent);
+    /// world.resource_mut::<Events<MyEvent>>().write(MyEvent);
     ///
     /// // A `MyEvent` event has been pushed so `my_system` will run
     /// app.run(&mut world);

crates/bevy_ecs/src/storage/table/mod.rs

@@ -597,7 +597,7 @@ impl Table {
     #[inline]
     pub fn entity_count(&self) -> u32 {
         // No entity may have more than one table row, so there are no duplicates,
-        // and there may only ever be u32::MAX entities, so the length never exceeds u32's cappacity.
+        // and there may only ever be u32::MAX entities, so the length never exceeds u32's capacity.
         self.entities.len() as u32
     }
 

crates/bevy_ecs/src/system/commands/command.rs

@@ -229,12 +229,19 @@ pub fn trigger_targets(
     }
 }
 
-/// A [`Command`] that sends an arbitrary [`BufferedEvent`].
+/// A [`Command`] that writes an arbitrary [`BufferedEvent`].
 #[track_caller]
-pub fn send_event<E: BufferedEvent>(event: E) -> impl Command {
+pub fn write_event<E: BufferedEvent>(event: E) -> impl Command {
     let caller = MaybeLocation::caller();
     move |world: &mut World| {
         let mut events = world.resource_mut::<Events<E>>();
-        events.send_with_caller(event, caller);
+        events.write_with_caller(event, caller);
     }
 }
+
+/// A [`Command`] that writes an arbitrary [`BufferedEvent`].
+#[track_caller]
+#[deprecated(since = "0.17.0", note = "Use `write_event` instead.")]
+pub fn send_event<E: BufferedEvent>(event: E) -> impl Command {
+    write_event(event)
+}

crates/bevy_ecs/src/system/commands/entity_command.rs

@@ -143,14 +143,40 @@ pub unsafe fn insert_by_id<T: Send + 'static>(
 
 /// An [`EntityCommand`] that adds a component to an entity using
 /// the component's [`FromWorld`] implementation.
+///
+/// `T::from_world` will only be invoked if the component will actually be inserted.
+/// In other words, `T::from_world` will *not* be invoked if `mode` is [`InsertMode::Keep`]
+/// and the entity already has the component.
 #[track_caller]
 pub fn insert_from_world<T: Component + FromWorld>(mode: InsertMode) -> impl EntityCommand {
     let caller = MaybeLocation::caller();
     move |mut entity: EntityWorldMut| {
+        if !(mode == InsertMode::Keep && entity.contains::<T>()) {
             let value = entity.world_scope(|world| T::from_world(world));
             entity.insert_with_caller(value, mode, caller, RelationshipHookMode::Run);
         }
     }
+}
+
+/// An [`EntityCommand`] that adds a component to an entity using
+/// some function that returns the component.
+///
+/// The function will only be invoked if the component will actually be inserted.
+/// In other words, the function will *not* be invoked if `mode` is [`InsertMode::Keep`]
+/// and the entity already has the component.
+#[track_caller]
+pub fn insert_with<T: Component, F>(component_fn: F, mode: InsertMode) -> impl EntityCommand
+where
+    F: FnOnce() -> T + Send + 'static,
+{
+    let caller = MaybeLocation::caller();
+    move |mut entity: EntityWorldMut| {
+        if !(mode == InsertMode::Keep && entity.contains::<T>()) {
+            let value = component_fn();
+            entity.insert_with_caller(value, mode, caller, RelationshipHookMode::Run);
+        }
+    }
+}
 
 /// An [`EntityCommand`] that removes the components in a [`Bundle`] from an entity.
 #[track_caller]

crates/bevy_ecs/src/system/commands/mod.rs

@@ -1124,9 +1124,9 @@ impl<'w, 's> Commands<'w, 's> {
         self.spawn(Observer::new(observer))
     }
 
-    /// Sends an arbitrary [`BufferedEvent`].
+    /// Writes an arbitrary [`BufferedEvent`].
     ///
-    /// This is a convenience method for sending events
+    /// This is a convenience method for writing events
     /// without requiring an [`EventWriter`](crate::event::EventWriter).
     ///
     /// # Performance
@@ -1137,11 +1137,29 @@ impl<'w, 's> Commands<'w, 's> {
     /// If these events are performance-critical or very frequently sent,
     /// consider using a typed [`EventWriter`](crate::event::EventWriter) instead.
     #[track_caller]
-    pub fn send_event<E: BufferedEvent>(&mut self, event: E) -> &mut Self {
+    pub fn write_event<E: BufferedEvent>(&mut self, event: E) -> &mut Self {
-        self.queue(command::send_event(event));
+        self.queue(command::write_event(event));
         self
     }
 
+    /// Writes an arbitrary [`BufferedEvent`].
+    ///
+    /// This is a convenience method for writing events
+    /// without requiring an [`EventWriter`](crate::event::EventWriter).
+    ///
+    /// # Performance
+    ///
+    /// Since this is a command, exclusive world access is used, which means that it will not profit from
+    /// system-level parallelism on supported platforms.
+    ///
+    /// If these events are performance-critical or very frequently sent,
+    /// consider using a typed [`EventWriter`](crate::event::EventWriter) instead.
+    #[track_caller]
+    #[deprecated(since = "0.17.0", note = "Use `Commands::write_event` instead.")]
+    pub fn send_event<E: BufferedEvent>(&mut self, event: E) -> &mut Self {
+        self.write_event(event)
+    }
+
     /// Runs the schedule corresponding to the given [`ScheduleLabel`].
     ///
     /// Calls [`World::try_run_schedule`](World::try_run_schedule).
@@ -2273,35 +2291,53 @@ impl<'a, T: Component> EntityEntryCommands<'a, T> {
 
     /// [Insert](EntityCommands::insert) the value returned from `default` into this entity,
     /// if `T` is not already present.
+    ///
+    /// `default` will only be invoked if the component will actually be inserted.
     #[track_caller]
-    pub fn or_insert_with(&mut self, default: impl Fn() -> T) -> &mut Self {
+    pub fn or_insert_with<F>(&mut self, default: F) -> &mut Self
-        self.or_insert(default())
+    where
+        F: FnOnce() -> T + Send + 'static,
+    {
+        self.entity_commands
+            .queue(entity_command::insert_with(default, InsertMode::Keep));
+        self
     }
 
     /// [Insert](EntityCommands::insert) the value returned from `default` into this entity,
     /// if `T` is not already present.
     ///
+    /// `default` will only be invoked if the component will actually be inserted.
+    ///
     /// # Note
     ///
     /// If the entity does not exist when this command is executed,
     /// the resulting error will be ignored.
     #[track_caller]
-    pub fn or_try_insert_with(&mut self, default: impl Fn() -> T) -> &mut Self {
+    pub fn or_try_insert_with<F>(&mut self, default: F) -> &mut Self
-        self.or_try_insert(default())
+    where
+        F: FnOnce() -> T + Send + 'static,
+    {
+        self.entity_commands
+            .queue_silenced(entity_command::insert_with(default, InsertMode::Keep));
+        self
     }
 
     /// [Insert](EntityCommands::insert) `T::default` into this entity,
     /// if `T` is not already present.
+    ///
+    /// `T::default` will only be invoked if the component will actually be inserted.
     #[track_caller]
     pub fn or_default(&mut self) -> &mut Self
     where
         T: Default,
     {
-        self.or_insert(T::default())
+        self.or_insert_with(T::default)
     }
 
     /// [Insert](EntityCommands::insert) `T::from_world` into this entity,
     /// if `T` is not already present.
+    ///
+    /// `T::from_world` will only be invoked if the component will actually be inserted.
     #[track_caller]
     pub fn or_from_world(&mut self) -> &mut Self
     where
@@ -2396,6 +2432,12 @@ mod tests {
         }
     }
 
+    impl Default for W<u8> {
+        fn default() -> Self {
+            unreachable!()
+        }
+    }
+
     #[test]
     fn entity_commands_entry() {
         let mut world = World::default();
@@ -2435,6 +2477,17 @@ mod tests {
         let id = commands.entity(entity).entry::<W<u64>>().entity().id();
         queue.apply(&mut world);
         assert_eq!(id, entity);
+        let mut commands = Commands::new(&mut queue, &world);
+        commands
+            .entity(entity)
+            .entry::<W<u8>>()
+            .or_insert_with(|| W(5))
+            .or_insert_with(|| unreachable!())
+            .or_try_insert_with(|| unreachable!())
+            .or_default()
+            .or_from_world();
+        queue.apply(&mut world);
+        assert_eq!(5, world.get::<W<u8>>(entity).unwrap().0);
     }
 
     #[test]

crates/bevy_ecs/src/world/deferred_world.rs

@@ -7,7 +7,7 @@ use crate::{
     change_detection::{MaybeLocation, MutUntyped},
     component::{ComponentId, Mutable},
     entity::Entity,
-    event::{BufferedEvent, EntityEvent, Event, EventId, EventKey, Events, SendBatchIds},
+    event::{BufferedEvent, EntityEvent, Event, EventId, EventKey, Events, WriteBatchIds},
     lifecycle::{HookContext, INSERT, REPLACE},
     observer::{Observers, TriggerTargets},
     prelude::{Component, QueryState},
@@ -507,30 +507,51 @@ impl<'w> DeferredWorld<'w> {
         unsafe { self.world.get_non_send_resource_mut() }
     }
 
-    /// Sends a [`BufferedEvent`].
+    /// Writes a [`BufferedEvent`].
-    /// This method returns the [ID](`EventId`) of the sent `event`,
+    /// This method returns the [ID](`EventId`) of the written `event`,
-    /// or [`None`] if the `event` could not be sent.
+    /// or [`None`] if the `event` could not be written.
     #[inline]
+    pub fn write_event<E: BufferedEvent>(&mut self, event: E) -> Option<EventId<E>> {
+        self.write_event_batch(core::iter::once(event))?.next()
+    }
+
+    /// Writes a [`BufferedEvent`].
+    /// This method returns the [ID](`EventId`) of the written `event`,
+    /// or [`None`] if the `event` could not be written.
+    #[inline]
+    #[deprecated(since = "0.17.0", note = "Use `DeferredWorld::write_event` instead.")]
     pub fn send_event<E: BufferedEvent>(&mut self, event: E) -> Option<EventId<E>> {
-        self.send_event_batch(core::iter::once(event))?.next()
+        self.write_event(event)
     }
 
-    /// Sends the default value of the [`BufferedEvent`] of type `E`.
+    /// Writes the default value of the [`BufferedEvent`] of type `E`.
-    /// This method returns the [ID](`EventId`) of the sent `event`,
+    /// This method returns the [ID](`EventId`) of the written `event`,
-    /// or [`None`] if the `event` could not be sent.
+    /// or [`None`] if the `event` could not be written.
     #[inline]
+    pub fn write_event_default<E: BufferedEvent + Default>(&mut self) -> Option<EventId<E>> {
+        self.write_event(E::default())
+    }
+
+    /// Writes the default value of the [`BufferedEvent`] of type `E`.
+    /// This method returns the [ID](`EventId`) of the written `event`,
+    /// or [`None`] if the `event` could not be written.
+    #[inline]
+    #[deprecated(
+        since = "0.17.0",
+        note = "Use `DeferredWorld::write_event_default` instead."
+    )]
     pub fn send_event_default<E: BufferedEvent + Default>(&mut self) -> Option<EventId<E>> {
-        self.send_event(E::default())
+        self.write_event_default::<E>()
     }
 
-    /// Sends a batch of [`BufferedEvent`]s from an iterator.
+    /// Writes a batch of [`BufferedEvent`]s from an iterator.
-    /// This method returns the [IDs](`EventId`) of the sent `events`,
+    /// This method returns the [IDs](`EventId`) of the written `events`,
-    /// or [`None`] if the `event` could not be sent.
+    /// or [`None`] if the `event` could not be written.
     #[inline]
-    pub fn send_event_batch<E: BufferedEvent>(
+    pub fn write_event_batch<E: BufferedEvent>(
         &mut self,
         events: impl IntoIterator<Item = E>,
-    ) -> Option<SendBatchIds<E>> {
+    ) -> Option<WriteBatchIds<E>> {
         let Some(mut events_resource) = self.get_resource_mut::<Events<E>>() else {
             log::error!(
                 "Unable to send event `{}`\n\tEvent must be added to the app with `add_event()`\n\thttps://docs.rs/bevy/*/bevy/app/struct.App.html#method.add_event ",
@@ -538,7 +559,22 @@ impl<'w> DeferredWorld<'w> {
             );
             return None;
         };
-        Some(events_resource.send_batch(events))
+        Some(events_resource.write_batch(events))
+    }
+
+    /// Writes a batch of [`BufferedEvent`]s from an iterator.
+    /// This method returns the [IDs](`EventId`) of the written `events`,
+    /// or [`None`] if the `event` could not be written.
+    #[inline]
+    #[deprecated(
+        since = "0.17.0",
+        note = "Use `DeferredWorld::write_event_batch` instead."
+    )]
+    pub fn send_event_batch<E: BufferedEvent>(
+        &mut self,
+        events: impl IntoIterator<Item = E>,
+    ) -> Option<WriteBatchIds<E>> {
+        self.write_event_batch(events)
     }
 
     /// Gets a pointer to the resource with the id [`ComponentId`] if it exists.

crates/bevy_ecs/src/world/entity_ref.rs

@@ -2418,7 +2418,7 @@ impl<'w> EntityWorldMut<'w> {
         }
 
         for component_id in archetype.components() {
-            world.removed_components.send(component_id, self.entity);
+            world.removed_components.write(component_id, self.entity);
         }
 
         // Observers and on_remove hooks may reserve new entities, which

crates/bevy_ecs/src/world/mod.rs

@@ -50,7 +50,7 @@ use crate::{
     },
     entity::{Entities, Entity, EntityDoesNotExistError},
     entity_disabling::DefaultQueryFilters,
-    event::{Event, EventId, Events, SendBatchIds},
+    event::{Event, EventId, Events, WriteBatchIds},
     lifecycle::RemovedComponentEvents,
     observer::Observers,
     query::{DebugCheckedUnwrap, QueryData, QueryFilter, QueryState},
@@ -2626,30 +2626,48 @@ impl World {
         Some(result)
     }
 
-    /// Sends a [`BufferedEvent`].
+    /// Writes a [`BufferedEvent`].
-    /// This method returns the [ID](`EventId`) of the sent `event`,
+    /// This method returns the [ID](`EventId`) of the written `event`,
-    /// or [`None`] if the `event` could not be sent.
+    /// or [`None`] if the `event` could not be written.
     #[inline]
+    pub fn write_event<E: BufferedEvent>(&mut self, event: E) -> Option<EventId<E>> {
+        self.write_event_batch(core::iter::once(event))?.next()
+    }
+
+    /// Writes a [`BufferedEvent`].
+    /// This method returns the [ID](`EventId`) of the written `event`,
+    /// or [`None`] if the `event` could not be written.
+    #[inline]
+    #[deprecated(since = "0.17.0", note = "Use `World::write_event` instead.")]
     pub fn send_event<E: BufferedEvent>(&mut self, event: E) -> Option<EventId<E>> {
-        self.send_event_batch(core::iter::once(event))?.next()
+        self.write_event(event)
     }
 
-    /// Sends the default value of the [`BufferedEvent`] of type `E`.
+    /// Writes the default value of the [`BufferedEvent`] of type `E`.
-    /// This method returns the [ID](`EventId`) of the sent `event`,
+    /// This method returns the [ID](`EventId`) of the written `event`,
-    /// or [`None`] if the `event` could not be sent.
+    /// or [`None`] if the `event` could not be written.
     #[inline]
+    pub fn write_event_default<E: BufferedEvent + Default>(&mut self) -> Option<EventId<E>> {
+        self.write_event(E::default())
+    }
+
+    /// Writes the default value of the [`BufferedEvent`] of type `E`.
+    /// This method returns the [ID](`EventId`) of the written `event`,
+    /// or [`None`] if the `event` could not be written.
+    #[inline]
+    #[deprecated(since = "0.17.0", note = "Use `World::write_event_default` instead.")]
     pub fn send_event_default<E: BufferedEvent + Default>(&mut self) -> Option<EventId<E>> {
-        self.send_event(E::default())
+        self.write_event_default::<E>()
     }
 
-    /// Sends a batch of [`BufferedEvent`]s from an iterator.
+    /// Writes a batch of [`BufferedEvent`]s from an iterator.
-    /// This method returns the [IDs](`EventId`) of the sent `events`,
+    /// This method returns the [IDs](`EventId`) of the written `events`,
-    /// or [`None`] if the `event` could not be sent.
+    /// or [`None`] if the `event` could not be written.
     #[inline]
-    pub fn send_event_batch<E: BufferedEvent>(
+    pub fn write_event_batch<E: BufferedEvent>(
         &mut self,
         events: impl IntoIterator<Item = E>,
-    ) -> Option<SendBatchIds<E>> {
+    ) -> Option<WriteBatchIds<E>> {
         let Some(mut events_resource) = self.get_resource_mut::<Events<E>>() else {
             log::error!(
                 "Unable to send event `{}`\n\tEvent must be added to the app with `add_event()`\n\thttps://docs.rs/bevy/*/bevy/app/struct.App.html#method.add_event ",
@@ -2657,7 +2675,19 @@ impl World {
             );
             return None;
         };
-        Some(events_resource.send_batch(events))
+        Some(events_resource.write_batch(events))
+    }
+
+    /// Writes a batch of [`BufferedEvent`]s from an iterator.
+    /// This method returns the [IDs](`EventId`) of the written `events`,
+    /// or [`None`] if the `event` could not be written.
+    #[inline]
+    #[deprecated(since = "0.17.0", note = "Use `World::write_event_batch` instead.")]
+    pub fn send_event_batch<E: BufferedEvent>(
+        &mut self,
+        events: impl IntoIterator<Item = E>,
+    ) -> Option<WriteBatchIds<E>> {
+        self.write_event_batch(events)
     }
 
     /// Inserts a new resource with the given `value`. Will replace the value if it already existed.

crates/bevy_gilrs/Cargo.toml

@@ -13,7 +13,6 @@ keywords = ["bevy"]
 bevy_app = { path = "../bevy_app", version = "0.17.0-dev" }
 bevy_ecs = { path = "../bevy_ecs", version = "0.17.0-dev" }
 bevy_input = { path = "../bevy_input", version = "0.17.0-dev" }
-bevy_utils = { path = "../bevy_utils", version = "0.17.0-dev" }
 bevy_time = { path = "../bevy_time", version = "0.17.0-dev" }
 bevy_platform = { path = "../bevy_platform", version = "0.17.0-dev", default-features = false, features = [
   "std",

crates/bevy_gizmos/macros/Cargo.toml

@@ -16,7 +16,6 @@ proc-macro = true
 bevy_macro_utils = { path = "../../bevy_macro_utils", version = "0.17.0-dev" }
 
 syn = "2.0"
-proc-macro2 = "1.0"
 quote = "1.0"
 
 [lints]

crates/bevy_gltf/Cargo.toml

@@ -36,7 +36,6 @@ bevy_scene = { path = "../bevy_scene", version = "0.17.0-dev", features = [
 ] }
 bevy_transform = { path = "../bevy_transform", version = "0.17.0-dev" }
 bevy_tasks = { path = "../bevy_tasks", version = "0.17.0-dev" }
-bevy_utils = { path = "../bevy_utils", version = "0.17.0-dev" }
 bevy_platform = { path = "../bevy_platform", version = "0.17.0-dev", default-features = false, features = [
   "std",
   "serialize",

crates/bevy_input/Cargo.toml

@@ -63,7 +63,6 @@ libm = ["bevy_math/libm"]
 bevy_app = { path = "../bevy_app", version = "0.17.0-dev", default-features = false }
 bevy_ecs = { path = "../bevy_ecs", version = "0.17.0-dev", default-features = false }
 bevy_math = { path = "../bevy_math", version = "0.17.0-dev", default-features = false }
-bevy_utils = { path = "../bevy_utils", version = "0.17.0-dev", default-features = false }
 bevy_reflect = { path = "../bevy_reflect", version = "0.17.0-dev", features = [
   "glam",
 ], default-features = false, optional = true }

crates/bevy_input/src/gamepad.rs

@@ -2223,7 +2223,7 @@ mod tests {
             self.app
                 .world_mut()
                 .resource_mut::<Events<GamepadConnectionEvent>>()
-                .send(GamepadConnectionEvent::new(
+                .write(GamepadConnectionEvent::new(
                     gamepad,
                     Connected {
                         name: "Test gamepad".to_string(),
@@ -2238,14 +2238,14 @@ mod tests {
             self.app
                 .world_mut()
                 .resource_mut::<Events<GamepadConnectionEvent>>()
-                .send(GamepadConnectionEvent::new(gamepad, Disconnected));
+                .write(GamepadConnectionEvent::new(gamepad, Disconnected));
         }
 
         pub fn send_raw_gamepad_event(&mut self, event: RawGamepadEvent) {
             self.app
                 .world_mut()
                 .resource_mut::<Events<RawGamepadEvent>>()
-                .send(event);
+                .write(event);
         }
 
         pub fn send_raw_gamepad_event_batch(
@@ -2255,7 +2255,7 @@ mod tests {
             self.app
                 .world_mut()
                 .resource_mut::<Events<RawGamepadEvent>>()
-                .send_batch(events);
+                .write_batch(events);
         }
     }
 
@@ -2449,7 +2449,7 @@ mod tests {
         ctx.app
             .world_mut()
             .resource_mut::<Events<RawGamepadEvent>>()
-            .send_batch([
+            .write_batch([
                 RawGamepadEvent::Axis(RawGamepadAxisChangedEvent::new(
                     entity,
                     GamepadAxis::LeftStickY,
@@ -2513,7 +2513,7 @@ mod tests {
         ctx.app
             .world_mut()
             .resource_mut::<Events<RawGamepadEvent>>()
-            .send_batch(events);
+            .write_batch(events);
         ctx.update();
         assert_eq!(
             ctx.app
@@ -2550,7 +2550,7 @@ mod tests {
         ctx.app
             .world_mut()
             .resource_mut::<Events<RawGamepadEvent>>()
-            .send_batch(events);
+            .write_batch(events);
         ctx.update();
         assert_eq!(
             ctx.app
@@ -2598,7 +2598,7 @@ mod tests {
         ctx.app
             .world_mut()
             .resource_mut::<Events<RawGamepadEvent>>()
-            .send_batch(events);
+            .write_batch(events);
         ctx.update();
 
         let events = ctx
@@ -2654,7 +2654,7 @@ mod tests {
         ctx.app
             .world_mut()
             .resource_mut::<Events<RawGamepadEvent>>()
-            .send_batch(events);
+            .write_batch(events);
         ctx.update();
         assert_eq!(
             ctx.app
@@ -2692,7 +2692,7 @@ mod tests {
         ctx.app
             .world_mut()
             .resource_mut::<Events<RawGamepadEvent>>()
-            .send_batch(events);
+            .write_batch(events);
         ctx.update();
 
         let events = ctx
@@ -2728,7 +2728,7 @@ mod tests {
         ctx.app
             .world_mut()
             .resource_mut::<Events<RawGamepadEvent>>()
-            .send_batch(events);
+            .write_batch(events);
         ctx.update();
 
         assert_eq!(

crates/bevy_input_focus/src/lib.rs

@@ -546,7 +546,7 @@ mod tests {
         assert!(!app.world().is_focus_visible(child_of_b));
 
         // entity_a should receive this event
-        app.world_mut().send_event(key_a_event());
+        app.world_mut().write_event(key_a_event());
         app.update();
 
         assert_eq!(get_gathered(&app, entity_a), "A");
@@ -559,7 +559,7 @@ mod tests {
         assert!(!app.world().is_focus_visible(entity_a));
 
         // This event should be lost
-        app.world_mut().send_event(key_a_event());
+        app.world_mut().write_event(key_a_event());
         app.update();
 
         assert_eq!(get_gathered(&app, entity_a), "A");
@@ -580,7 +580,7 @@ mod tests {
 
         // These events should be received by entity_b and child_of_b
         app.world_mut()
-            .send_event_batch(core::iter::repeat_n(key_a_event(), 4));
+            .write_event_batch(core::iter::repeat_n(key_a_event(), 4));
         app.update();
 
         assert_eq!(get_gathered(&app, entity_a), "A");

crates/bevy_light/Cargo.toml

@@ -19,7 +19,6 @@ bevy_reflect = { path = "../bevy_reflect", version = "0.17.0-dev" }
 bevy_camera = { path = "../bevy_camera", version = "0.17.0-dev" }
 bevy_ecs = { path = "../bevy_ecs", version = "0.17.0-dev" }
 bevy_transform = { path = "../bevy_transform", version = "0.17.0-dev" }
-bevy_derive = { path = "../bevy_derive", version = "0.17.0-dev" }
 bevy_utils = { path = "../bevy_utils", version = "0.17.0-dev" }
 bevy_platform = { path = "../bevy_platform", version = "0.17.0-dev" }
 bevy_color = { path = "../bevy_color", version = "0.17.0-dev", features = [
@@ -27,7 +26,6 @@ bevy_color = { path = "../bevy_color", version = "0.17.0-dev", features = [
 ] }
 
 # other
-serde = { version = "1", default-features = false, features = ["derive"] }
 tracing = { version = "0.1", default-features = false }
 
 [features]

crates/bevy_light/src/lib.rs

@@ -27,7 +27,7 @@ use cluster::{
 mod ambient_light;
 pub use ambient_light::AmbientLight;
 mod probe;
-pub use probe::{EnvironmentMapLight, LightProbe};
+pub use probe::{EnvironmentMapLight, IrradianceVolume, LightProbe};
 mod volumetric;
 pub use volumetric::{FogVolume, VolumetricFog, VolumetricLight};
 pub mod cascade;
@@ -121,6 +121,7 @@ impl Plugin for LightPlugin {
             .register_type::<PointLight>()
             .register_type::<LightProbe>()
             .register_type::<EnvironmentMapLight>()
+            .register_type::<IrradianceVolume>()
             .register_type::<VolumetricFog>()
             .register_type::<VolumetricLight>()
             .register_type::<PointLightShadowMap>()

crates/bevy_light/src/probe.rs

@@ -107,3 +107,50 @@ impl Default for EnvironmentMapLight {
         }
     }
 }
+
+/// The component that defines an irradiance volume.
+///
+/// See `bevy_pbr::irradiance_volume` for detailed information.
+///
+/// This component requires the [`LightProbe`] component, and is typically used with
+/// [`bevy_transform::components::Transform`] to place the volume appropriately.
+#[derive(Clone, Reflect, Component, Debug)]
+#[reflect(Component, Default, Debug, Clone)]
+#[require(LightProbe)]
+pub struct IrradianceVolume {
+    /// The 3D texture that represents the ambient cubes, encoded in the format
+    /// described in `bevy_pbr::irradiance_volume`.
+    pub voxels: Handle<Image>,
+
+    /// Scale factor applied to the diffuse and specular light generated by this component.
+    ///
+    /// After applying this multiplier, the resulting values should
+    /// be in units of [cd/m^2](https://en.wikipedia.org/wiki/Candela_per_square_metre).
+    ///
+    /// See also <https://google.github.io/filament/Filament.html#lighting/imagebasedlights/iblunit>.
+    pub intensity: f32,
+
+    /// Whether the light from this irradiance volume has an effect on meshes
+    /// with lightmaps.
+    ///
+    /// Set this to false if your lightmap baking tool bakes the light from this
+    /// irradiance volume into the lightmaps in order to avoid counting the
+    /// irradiance twice. Frequently, applications use irradiance volumes as a
+    /// lower-quality alternative to lightmaps for capturing indirect
+    /// illumination on dynamic objects, and such applications will want to set
+    /// this value to false.
+    ///
+    /// By default, this is set to true.
+    pub affects_lightmapped_meshes: bool,
+}
+
+impl Default for IrradianceVolume {
+    #[inline]
+    fn default() -> Self {
+        IrradianceVolume {
+            voxels: Handle::default(),
+            intensity: 0.0,
+            affects_lightmapped_meshes: true,
+        }
+    }
+}

crates/bevy_math/src/direction.rs

@@ -4,6 +4,7 @@ use crate::{
 };
 
 use core::f32::consts::FRAC_1_SQRT_2;
+use core::fmt;
 use derive_more::derive::Into;
 
 #[cfg(feature = "bevy_reflect")]
@@ -325,6 +326,12 @@ impl core::ops::Mul<Dir2> for Rot2 {
     }
 }
 
+impl fmt::Display for Dir2 {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{}", self.0)
+    }
+}
+
 #[cfg(any(feature = "approx", test))]
 impl approx::AbsDiffEq for Dir2 {
     type Epsilon = f32;
@@ -587,6 +594,12 @@ impl core::ops::Mul<Dir3> for Quat {
     }
 }
 
+impl fmt::Display for Dir3 {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{}", self.0)
+    }
+}
+
 #[cfg(feature = "approx")]
 impl approx::AbsDiffEq for Dir3 {
     type Epsilon = f32;
@@ -834,6 +847,12 @@ impl core::ops::Mul<Dir3A> for Quat {
     }
 }
 
+impl fmt::Display for Dir3A {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{}", self.0)
+    }
+}
+
 #[cfg(feature = "approx")]
 impl approx::AbsDiffEq for Dir3A {
     type Epsilon = f32;
@@ -1022,6 +1041,12 @@ impl core::ops::Mul<Dir4> for f32 {
     }
 }
 
+impl fmt::Display for Dir4 {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{}", self.0)
+    }
+}
+
 #[cfg(feature = "approx")]
 impl approx::AbsDiffEq for Dir4 {
     type Epsilon = f32;

crates/bevy_mesh/Cargo.toml

@@ -18,7 +18,6 @@ bevy_ecs = { path = "../bevy_ecs", version = "0.17.0-dev" }
 bevy_transform = { path = "../bevy_transform", version = "0.17.0-dev" }
 bevy_mikktspace = { path = "../bevy_mikktspace", version = "0.17.0-dev" }
 bevy_derive = { path = "../bevy_derive", version = "0.17.0-dev" }
-bevy_utils = { path = "../bevy_utils", version = "0.17.0-dev" }
 bevy_platform = { path = "../bevy_platform", version = "0.17.0-dev", default-features = false, features = [
   "std",
   "serialize",

crates/bevy_pbr/Cargo.toml

@@ -21,7 +21,7 @@ pbr_light_textures = []
 shader_format_glsl = ["bevy_render/shader_format_glsl"]
 trace = ["bevy_render/trace"]
 # Enables the meshlet renderer for dense high-poly scenes (experimental)
-meshlet = ["dep:lz4_flex", "dep:range-alloc", "dep:half", "dep:bevy_tasks"]
+meshlet = ["dep:lz4_flex", "dep:range-alloc", "dep:bevy_tasks"]
 # Enables processing meshes into meshlet meshes
 meshlet_processor = [
   "meshlet",
@@ -51,7 +51,6 @@ bevy_camera = { path = "../bevy_camera", version = "0.17.0-dev" }
 bevy_tasks = { path = "../bevy_tasks", version = "0.17.0-dev", optional = true }
 bevy_transform = { path = "../bevy_transform", version = "0.17.0-dev" }
 bevy_utils = { path = "../bevy_utils", version = "0.17.0-dev" }
-bevy_window = { path = "../bevy_window", version = "0.17.0-dev" }
 bevy_platform = { path = "../bevy_platform", version = "0.17.0-dev", default-features = false, features = [
   "std",
 ] }
@@ -66,14 +65,12 @@ lz4_flex = { version = "0.11", default-features = false, features = [
   "frame",
 ], optional = true }
 range-alloc = { version = "0.1.3", optional = true }
-half = { version = "2", features = ["bytemuck"], optional = true }
 meshopt = { version = "0.4.1", optional = true }
 metis = { version = "0.2", optional = true }
 itertools = { version = "0.14", optional = true }
 bitvec = { version = "1", optional = true }
 # direct dependency required for derive macro
 bytemuck = { version = "1", features = ["derive", "must_cast"] }
-radsort = "0.1"
 smallvec = { version = "1", default-features = false }
 nonmax = "0.5"
 static_assertions = "1"

crates/bevy_pbr/src/lib.rs

@@ -51,9 +51,9 @@ use bevy_light::SimulationLightSystems;
 pub use bevy_light::{
     light_consts, AmbientLight, CascadeShadowConfig, CascadeShadowConfigBuilder, Cascades,
     ClusteredDecal, DirectionalLight, DirectionalLightShadowMap, DirectionalLightTexture,
-    FogVolume, LightPlugin, LightProbe, NotShadowCaster, NotShadowReceiver, PointLight,
+    FogVolume, IrradianceVolume, LightPlugin, LightProbe, NotShadowCaster, NotShadowReceiver,
-    PointLightShadowMap, PointLightTexture, ShadowFilteringMethod, SpotLight, SpotLightTexture,
+    PointLight, PointLightShadowMap, PointLightTexture, ShadowFilteringMethod, SpotLight,
-    TransmittedShadowReceiver, VolumetricFog, VolumetricLight,
+    SpotLightTexture, TransmittedShadowReceiver, VolumetricFog, VolumetricLight,
 };
 pub use cluster::*;
 pub use components::*;

crates/bevy_pbr/src/light_probe/irradiance_volume.rs

@@ -133,9 +133,8 @@
 //!
 //! [Why ambient cubes?]: #why-ambient-cubes
 
-use bevy_ecs::{component::Component, reflect::ReflectComponent};
 use bevy_image::Image;
-use bevy_light::LightProbe;
+pub use bevy_light::IrradianceVolume;
 use bevy_render::{
     render_asset::RenderAssets,
     render_resource::{
@@ -145,11 +144,9 @@ use bevy_render::{
     renderer::{RenderAdapter, RenderDevice},
     texture::{FallbackImage, GpuImage},
 };
-use bevy_utils::default;
 use core::{num::NonZero, ops::Deref};
 
-use bevy_asset::{AssetId, Handle};
+use bevy_asset::AssetId;
-use bevy_reflect::{std_traits::ReflectDefault, Reflect};
 
 use crate::{
     add_cubemap_texture_view, binding_arrays_are_usable, RenderViewLightProbes,
@@ -163,53 +160,6 @@ use super::LightProbeComponent;
 /// (see issue #11885).
 pub(crate) const IRRADIANCE_VOLUMES_ARE_USABLE: bool = cfg!(not(target_arch = "wasm32"));
 
-/// The component that defines an irradiance volume.
-///
-/// See [`crate::irradiance_volume`] for detailed information.
-///
-/// This component requires the [`LightProbe`] component, and is typically used with
-/// [`bevy_transform::components::Transform`] to place the volume appropriately.
-#[derive(Clone, Reflect, Component, Debug)]
-#[reflect(Component, Default, Debug, Clone)]
-#[require(LightProbe)]
-pub struct IrradianceVolume {
-    /// The 3D texture that represents the ambient cubes, encoded in the format
-    /// described in [`crate::irradiance_volume`].
-    pub voxels: Handle<Image>,
-
-    /// Scale factor applied to the diffuse and specular light generated by this component.
-    ///
-    /// After applying this multiplier, the resulting values should
-    /// be in units of [cd/m^2](https://en.wikipedia.org/wiki/Candela_per_square_metre).
-    ///
-    /// See also <https://google.github.io/filament/Filament.html#lighting/imagebasedlights/iblunit>.
-    pub intensity: f32,
-
-    /// Whether the light from this irradiance volume has an effect on meshes
-    /// with lightmaps.
-    ///
-    /// Set this to false if your lightmap baking tool bakes the light from this
-    /// irradiance volume into the lightmaps in order to avoid counting the
-    /// irradiance twice. Frequently, applications use irradiance volumes as a
-    /// lower-quality alternative to lightmaps for capturing indirect
-    /// illumination on dynamic objects, and such applications will want to set
-    /// this value to false.
-    ///
-    /// By default, this is set to true.
-    pub affects_lightmapped_meshes: bool,
-}
-
-impl Default for IrradianceVolume {
-    #[inline]
-    fn default() -> Self {
-        IrradianceVolume {
-            voxels: default(),
-            intensity: 0.0,
-            affects_lightmapped_meshes: true,
-        }
-    }
-}
-
 /// All the bind group entries necessary for PBR shaders to access the
 /// irradiance volumes exposed to a view.
 pub(crate) enum RenderViewIrradianceVolumeBindGroupEntries<'a> {

crates/bevy_pbr/src/light_probe/mod.rs

@@ -288,8 +288,7 @@ impl Plugin for LightProbePlugin {
         load_shader_library!(app, "environment_map.wgsl");
         load_shader_library!(app, "irradiance_volume.wgsl");
 
-        app.register_type::<IrradianceVolume>()
+        app.add_plugins(ExtractInstancesPlugin::<EnvironmentMapIds>::new());
-            .add_plugins(ExtractInstancesPlugin::<EnvironmentMapIds>::new());
     }
 
     fn finish(&self, app: &mut App) {

crates/bevy_pbr/src/meshlet/pipelines.rs

@@ -1,7 +1,7 @@
 use super::resource_manager::ResourceManager;
 use bevy_asset::{load_embedded_asset, Handle};
 use bevy_core_pipeline::{
-    core_3d::CORE_3D_DEPTH_FORMAT, experimental::mip_generation::DOWNSAMPLE_DEPTH_SHADER_HANDLE,
+    core_3d::CORE_3D_DEPTH_FORMAT, experimental::mip_generation::DownsampleDepthShader,
     FullscreenShader,
 };
 use bevy_ecs::{
@@ -84,6 +84,7 @@ impl FromWorld for MeshletPipelines {
             .remap_1d_to_2d_dispatch_bind_group_layout
             .clone();
 
+        let downsample_depth_shader = (*world.resource::<DownsampleDepthShader>()).clone();
         let vertex_state = world.resource::<FullscreenShader>().to_vertex_state();
         let fill_counts_layout = resource_manager.fill_counts_bind_group_layout.clone();
 
@@ -230,7 +231,7 @@ impl FromWorld for MeshletPipelines {
                         stages: ShaderStages::COMPUTE,
                         range: 0..4,
                     }],
-                    shader: DOWNSAMPLE_DEPTH_SHADER_HANDLE,
+                    shader: downsample_depth_shader.clone(),
                     shader_defs: vec![
                         "MESHLET_VISIBILITY_BUFFER_RASTER_PASS_OUTPUT".into(),
                         "MESHLET".into(),
@@ -248,7 +249,7 @@ impl FromWorld for MeshletPipelines {
                         stages: ShaderStages::COMPUTE,
                         range: 0..4,
                     }],
-                    shader: DOWNSAMPLE_DEPTH_SHADER_HANDLE,
+                    shader: downsample_depth_shader.clone(),
                     shader_defs: vec![
                         "MESHLET_VISIBILITY_BUFFER_RASTER_PASS_OUTPUT".into(),
                         "MESHLET".into(),
@@ -266,7 +267,7 @@ impl FromWorld for MeshletPipelines {
                         stages: ShaderStages::COMPUTE,
                         range: 0..4,
                     }],
-                    shader: DOWNSAMPLE_DEPTH_SHADER_HANDLE,
+                    shader: downsample_depth_shader.clone(),
                     shader_defs: vec!["MESHLET".into()],
                     entry_point: Some("downsample_depth_first".into()),
                     ..default()
@@ -281,7 +282,7 @@ impl FromWorld for MeshletPipelines {
                         stages: ShaderStages::COMPUTE,
                         range: 0..4,
                     }],
-                    shader: DOWNSAMPLE_DEPTH_SHADER_HANDLE,
+                    shader: downsample_depth_shader,
                     shader_defs: vec!["MESHLET".into()],
                     entry_point: Some("downsample_depth_second".into()),
                     zero_initialize_workgroup_memory: false,

crates/bevy_pbr/src/volumetric_fog/mod.rs

@@ -30,12 +30,12 @@
 //! [Henyey-Greenstein phase function]: https://www.pbr-book.org/4ed/Volume_Scattering/Phase_Functions#TheHenyeyndashGreensteinPhaseFunction
 
 use bevy_app::{App, Plugin};
-use bevy_asset::{embedded_asset, Assets};
+use bevy_asset::{embedded_asset, Assets, Handle};
 use bevy_core_pipeline::core_3d::{
     graph::{Core3d, Node3d},
     prepare_core_3d_depth_textures,
 };
-use bevy_ecs::schedule::IntoScheduleConfigs as _;
+use bevy_ecs::{resource::Resource, schedule::IntoScheduleConfigs as _};
 use bevy_light::FogVolume;
 use bevy_math::{
     primitives::{Cuboid, Plane3d},
@@ -48,9 +48,7 @@ use bevy_render::{
     sync_component::SyncComponentPlugin,
     ExtractSchedule, Render, RenderApp, RenderSystems,
 };
-use render::{
+use render::{VolumetricFogNode, VolumetricFogPipeline, VolumetricFogUniformBuffer};
-    VolumetricFogNode, VolumetricFogPipeline, VolumetricFogUniformBuffer, CUBE_MESH, PLANE_MESH,
-};
 
 use crate::graph::NodePbr;
 
@@ -59,13 +57,19 @@ pub mod render;
 /// A plugin that implements volumetric fog.
 pub struct VolumetricFogPlugin;
 
+#[derive(Resource)]
+pub struct FogAssets {
+    plane_mesh: Handle<Mesh>,
+    cube_mesh: Handle<Mesh>,
+}
+
 impl Plugin for VolumetricFogPlugin {
     fn build(&self, app: &mut App) {
         embedded_asset!(app, "volumetric_fog.wgsl");
 
         let mut meshes = app.world_mut().resource_mut::<Assets<Mesh>>();
-        meshes.insert(&PLANE_MESH, Plane3d::new(Vec3::Z, Vec2::ONE).mesh().into());
+        let plane_mesh = meshes.add(Plane3d::new(Vec3::Z, Vec2::ONE).mesh());
-        meshes.insert(&CUBE_MESH, Cuboid::new(1.0, 1.0, 1.0).mesh().into());
+        let cube_mesh = meshes.add(Cuboid::new(1.0, 1.0, 1.0).mesh());
 
         app.add_plugins(SyncComponentPlugin::<FogVolume>::default());
 
@@ -74,6 +78,10 @@ impl Plugin for VolumetricFogPlugin {
         };
 
         render_app
+            .insert_resource(FogAssets {
+                plane_mesh,
+                cube_mesh,
+            })
             .init_resource::<SpecializedRenderPipelines<VolumetricFogPipeline>>()
             .init_resource::<VolumetricFogUniformBuffer>()
             .add_systems(ExtractSchedule, render::extract_volumetric_fog)

crates/bevy_pbr/src/volumetric_fog/render.rs

@@ -2,7 +2,7 @@
 
 use core::array;
 
-use bevy_asset::{load_embedded_asset, uuid_handle, AssetId, Handle};
+use bevy_asset::{load_embedded_asset, AssetId, Handle};
 use bevy_color::ColorToComponents as _;
 use bevy_core_pipeline::{
     core_3d::Camera3d,
@@ -54,6 +54,8 @@ use crate::{
     VolumetricLight,
 };
 
+use super::FogAssets;
+
 bitflags! {
     /// Flags that describe the bind group layout used to render volumetric fog.
     #[derive(Clone, Copy, PartialEq)]
@@ -77,20 +79,6 @@ bitflags! {
     }
 }
 
-/// The plane mesh, which is used to render a fog volume that the camera is
-/// inside.
-///
-/// This mesh is simply stretched to the size of the framebuffer, as when the
-/// camera is inside a fog volume it's essentially a full-screen effect.
-pub const PLANE_MESH: Handle<Mesh> = uuid_handle!("92523617-c708-4fd0-b42f-ceb4300c930b");
-
-/// The cube mesh, which is used to render a fog volume that the camera is
-/// outside.
-///
-/// Note that only the front faces of this cuboid will be rasterized in
-/// hardware. The back faces will be calculated in the shader via raytracing.
-pub const CUBE_MESH: Handle<Mesh> = uuid_handle!("4a1dd661-2d91-4377-a17a-a914e21e277e");
-
 /// The total number of bind group layouts.
 ///
 /// This is the total number of combinations of all
@@ -370,6 +358,7 @@ impl ViewNode for VolumetricFogNode {
             return Ok(());
         };
 
+        let fog_assets = world.resource::<FogAssets>();
         let render_meshes = world.resource::<RenderAssets<RenderMesh>>();
 
         for view_fog_volume in view_fog_volumes.iter() {
@@ -377,9 +366,9 @@ impl ViewNode for VolumetricFogNode {
             // otherwise, pick the plane mesh. In the latter case we'll be
             // effectively rendering a full-screen quad.
             let mesh_handle = if view_fog_volume.exterior {
-                CUBE_MESH.clone()
+                fog_assets.cube_mesh.clone()
             } else {
-                PLANE_MESH.clone()
+                fog_assets.plane_mesh.clone()
             };
 
             let Some(vertex_buffer_slice) = mesh_allocator.mesh_vertex_slice(&mesh_handle.id())
@@ -615,6 +604,7 @@ pub fn prepare_volumetric_fog_pipelines(
     pipeline_cache: Res<PipelineCache>,
     mut pipelines: ResMut<SpecializedRenderPipelines<VolumetricFogPipeline>>,
     volumetric_lighting_pipeline: Res<VolumetricFogPipeline>,
+    fog_assets: Res<FogAssets>,
     view_targets: Query<
         (
             Entity,
@@ -629,7 +619,7 @@ pub fn prepare_volumetric_fog_pipelines(
     >,
     meshes: Res<RenderAssets<RenderMesh>>,
 ) {
-    let Some(plane_mesh) = meshes.get(&PLANE_MESH) else {
+    let Some(plane_mesh) = meshes.get(&fog_assets.plane_mesh) else {
         // There's an off chance that the mesh won't be prepared yet if `RenderAssetBytesPerFrame` limiting is in use.
         return;
     };

crates/bevy_picking/Cargo.toml

@@ -24,7 +24,6 @@ bevy_reflect = { path = "../bevy_reflect", version = "0.17.0-dev" }
 bevy_render = { path = "../bevy_render", version = "0.17.0-dev" }
 bevy_time = { path = "../bevy_time", version = "0.17.0-dev" }
 bevy_transform = { path = "../bevy_transform", version = "0.17.0-dev" }
-bevy_utils = { path = "../bevy_utils", version = "0.17.0-dev" }
 bevy_window = { path = "../bevy_window", version = "0.17.0-dev" }
 bevy_platform = { path = "../bevy_platform", version = "0.17.0-dev", default-features = false, features = [
   "std",

crates/bevy_picking/src/hover.rs

@@ -344,7 +344,7 @@ pub fn update_is_hovered(
     }
 
     // Algorithm: for each entity having a `Hovered` component, we want to know if the current
-    // entry in the hover map is "within" (that is, in the set of descenants of) that entity. Rather
+    // entry in the hover map is "within" (that is, in the set of descendants of) that entity. Rather
     // than doing an expensive breadth-first traversal of children, instead start with the hovermap
     // entry and search upwards. We can make this even cheaper by building a set of ancestors for
     // the hovermap entry, and then testing each `Hovered` entity against that set.

crates/bevy_picking/src/input.rs

@@ -39,24 +39,30 @@ pub mod prelude {
     pub use crate::input::PointerInputPlugin;
 }
 
-/// Adds mouse and touch inputs for picking pointers to your app. This is a default input plugin,
-/// that you can replace with your own plugin as needed.
-///
-/// [`crate::PickingPlugin::is_input_enabled`] can be used to toggle whether
-/// the core picking plugin processes the inputs sent by this, or other input plugins, in one place.
-///
-/// This plugin contains several settings, and is added to the world as a resource after initialization.
-/// You can configure pointer input settings at runtime by accessing the resource.
 #[derive(Copy, Clone, Resource, Debug, Reflect)]
 #[reflect(Resource, Default, Clone)]
-pub struct PointerInputPlugin {
+/// Settings for enabling and disabling updating mouse and touch inputs for picking
+///
+/// ## Custom initialization
+/// ```
+/// # use bevy_app::App;
+/// # use bevy_picking::input::{PointerInputSettings,PointerInputPlugin};
+/// App::new()
+///     .insert_resource(PointerInputSettings {
+///         is_touch_enabled: false,
+///         is_mouse_enabled: true,
+///     })
+///     // or DefaultPlugins
+///     .add_plugins(PointerInputPlugin);
+/// ```
+pub struct PointerInputSettings {
     /// Should touch inputs be updated?
     pub is_touch_enabled: bool,
     /// Should mouse inputs be updated?
     pub is_mouse_enabled: bool,
 }
 
-impl PointerInputPlugin {
+impl PointerInputSettings {
     fn is_mouse_enabled(state: Res<Self>) -> bool {
         state.is_mouse_enabled
     }
@@ -66,7 +72,7 @@ impl PointerInputPlugin {
     }
 }
 
-impl Default for PointerInputPlugin {
+impl Default for PointerInputSettings {
     fn default() -> Self {
         Self {
             is_touch_enabled: true,
@@ -75,25 +81,35 @@ impl Default for PointerInputPlugin {
     }
 }
 
+/// Adds mouse and touch inputs for picking pointers to your app. This is a default input plugin,
+/// that you can replace with your own plugin as needed.
+///
+/// Toggling mouse input or touch input can be done at runtime by modifying
+/// [`PointerInputSettings`] resource.
+///
+/// [`PointerInputSettings`] can be initialized with custom values, but will be
+/// initialized with default values if it is not present at the moment this is
+/// added to the app.
+pub struct PointerInputPlugin;
+
 impl Plugin for PointerInputPlugin {
     fn build(&self, app: &mut App) {
-        app.insert_resource(*self)
+        app.init_resource::<PointerInputSettings>()
+            .register_type::<PointerInputSettings>()
             .add_systems(Startup, spawn_mouse_pointer)
             .add_systems(
                 First,
                 (
-                    mouse_pick_events.run_if(PointerInputPlugin::is_mouse_enabled),
+                    mouse_pick_events.run_if(PointerInputSettings::is_mouse_enabled),
-                    touch_pick_events.run_if(PointerInputPlugin::is_touch_enabled),
+                    touch_pick_events.run_if(PointerInputSettings::is_touch_enabled),
                 )
                     .chain()
                     .in_set(PickingSystems::Input),
             )
             .add_systems(
                 Last,
-                deactivate_touch_pointers.run_if(PointerInputPlugin::is_touch_enabled),
+                deactivate_touch_pointers.run_if(PointerInputSettings::is_touch_enabled),
-            )
+            );
-            .register_type::<Self>()
-            .register_type::<PointerInputPlugin>();
     }
 }
 

crates/bevy_picking/src/lib.rs

@@ -293,20 +293,31 @@ pub struct DefaultPickingPlugins;
 impl PluginGroup for DefaultPickingPlugins {
     fn build(self) -> PluginGroupBuilder {
         PluginGroupBuilder::start::<Self>()
-            .add(input::PointerInputPlugin::default())
+            .add(input::PointerInputPlugin)
-            .add(PickingPlugin::default())
+            .add(PickingPlugin)
             .add(InteractionPlugin)
     }
 }
 
-/// This plugin sets up the core picking infrastructure. It receives input events, and provides the shared
-/// types used by other picking plugins.
-///
-/// This plugin contains several settings, and is added to the world as a resource after initialization. You
-/// can configure picking settings at runtime through the resource.
 #[derive(Copy, Clone, Debug, Resource, Reflect)]
 #[reflect(Resource, Default, Debug, Clone)]
-pub struct PickingPlugin {
+/// Controls the behavior of picking
+///
+/// ## Custom initialization
+/// ```
+/// # use bevy_app::App;
+/// # use bevy_picking::{PickingSettings, PickingPlugin};
+/// App::new()
+///     .insert_resource(PickingSettings {
+///         is_enabled: true,
+///         is_input_enabled: false,
+///         is_hover_enabled: true,
+///         is_window_picking_enabled: false,
+///     })
+///     // or DefaultPlugins
+///     .add_plugins(PickingPlugin);
+/// ```
+pub struct PickingSettings {
     /// Enables and disables all picking features.
     pub is_enabled: bool,
     /// Enables and disables input collection.
@@ -317,7 +328,7 @@ pub struct PickingPlugin {
     pub is_window_picking_enabled: bool,
 }
 
-impl PickingPlugin {
+impl PickingSettings {
     /// Whether or not input collection systems should be running.
     pub fn input_should_run(state: Res<Self>) -> bool {
         state.is_input_enabled && state.is_enabled
@@ -335,7 +346,7 @@ impl PickingPlugin {
     }
 }
 
-impl Default for PickingPlugin {
+impl Default for PickingSettings {
     fn default() -> Self {
         Self {
             is_enabled: true,
@@ -346,9 +357,18 @@ impl Default for PickingPlugin {
     }
 }
 
+/// This plugin sets up the core picking infrastructure. It receives input events, and provides the shared
+/// types used by other picking plugins.
+///
+/// Behavior of picking can be controlled by modifying [`PickingSettings`].
+///
+/// [`PickingSettings`] will be initialized with default values if it
+/// is not present at the moment this is added to the app.
+pub struct PickingPlugin;
+
 impl Plugin for PickingPlugin {
     fn build(&self, app: &mut App) {
-        app.insert_resource(*self)
+        app.init_resource::<PickingSettings>()
             .init_resource::<pointer::PointerMap>()
             .init_resource::<backend::ray::RayMap>()
             .add_event::<pointer::PointerInput>()
@@ -369,7 +389,7 @@ impl Plugin for PickingPlugin {
             .add_systems(
                 PreUpdate,
                 window::update_window_hits
-                    .run_if(Self::window_picking_should_run)
+                    .run_if(PickingSettings::window_picking_should_run)
                     .in_set(PickingSystems::Backend),
             )
             .configure_sets(
@@ -382,15 +402,15 @@ impl Plugin for PickingPlugin {
             .configure_sets(
                 PreUpdate,
                 (
-                    PickingSystems::ProcessInput.run_if(Self::input_should_run),
+                    PickingSystems::ProcessInput.run_if(PickingSettings::input_should_run),
                     PickingSystems::Backend,
-                    PickingSystems::Hover.run_if(Self::hover_should_run),
+                    PickingSystems::Hover.run_if(PickingSettings::hover_should_run),
                     PickingSystems::PostHover,
                     PickingSystems::Last,
                 )
                     .chain(),
             )
-            .register_type::<Self>()
+            .register_type::<PickingSettings>()
             .register_type::<Pickable>()
             .register_type::<hover::PickingInteraction>()
             .register_type::<hover::Hovered>()

crates/bevy_reflect/compile_fail/tests/reflect_remote/invalid_definition_fail.rs

@@ -9,6 +9,7 @@ mod structs {
 
     #[reflect_remote(external_crate::TheirStruct)]
     //~^ ERROR: `?` operator has incompatible types
+    //~| ERROR: mismatched types
     struct MyStruct {
         // Reason: Should be `u32`
         pub value: bool,
@@ -25,6 +26,7 @@ mod tuple_structs {
 
     #[reflect_remote(external_crate::TheirStruct)]
     //~^ ERROR: `?` operator has incompatible types
+    //~| ERROR: mismatched types
     struct MyStruct(
         // Reason: Should be `u32`
         pub bool,
@@ -48,6 +50,7 @@ mod enums {
     //~| ERROR: variant `enums::external_crate::TheirStruct::Unit` has no field named `0`
     //~| ERROR: `?` operator has incompatible types
     //~| ERROR: `?` operator has incompatible types
+    //~| ERROR: mismatched types
     enum MyStruct {
         // Reason: Should be unit variant
         Unit(i32),
@@ -57,6 +60,7 @@ mod enums {
         // Reason: Should be `usize`
         Struct { value: String },
         //~^ ERROR: mismatched types
+        //~| ERROR: mismatched types
     }
 }
 

crates/bevy_reflect/compile_fail/tests/reflect_remote/nested_fail.rs

@@ -26,8 +26,8 @@ mod incorrect_inner_type {
     //~| ERROR: `TheirInner<T>` does not implement `PartialReflect` so cannot be introspected
     //~| ERROR: `TheirInner<T>` does not implement `PartialReflect` so cannot be introspected
     //~| ERROR: `TheirInner<T>` does not implement `TypePath` so cannot provide dynamic type path information
-    //~| ERROR: `TheirInner<T>` does not implement `TypePath` so cannot provide dynamic type path information
     //~| ERROR: `?` operator has incompatible types
+    //~| ERROR: mismatched types
     struct MyOuter<T: FromReflect + GetTypeRegistration> {
         // Reason: Should not use `MyInner<T>` directly
         pub inner: MyInner<T>,

crates/bevy_reflect/compile_fail/tests/reflect_remote/type_mismatch_fail.rs

@@ -77,6 +77,7 @@ mod enums {
 
     #[reflect_remote(external_crate::TheirBar)]
     //~^ ERROR: `?` operator has incompatible types
+    //~| ERROR: mismatched types
     enum MyBar {
         // Reason: Should use `i32`
         Value(u32),

crates/bevy_reflect/derive/Cargo.toml

@@ -24,7 +24,6 @@ indexmap = "2.0"
 proc-macro2 = "1.0"
 quote = "1.0"
 syn = { version = "2.0", features = ["full", "extra-traits"] }
-uuid = { version = "1.13.1", features = ["v4"] }
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 # TODO: Assuming all wasm builds are for the browser. Require `no_std` support to break assumption.

crates/bevy_reflect/derive/src/derive_data.rs

@@ -722,18 +722,7 @@ impl<'a> ReflectStruct<'a> {
                         }
                     } else {
                         quote! {
-                            #bevy_reflect_path::PartialReflect::reflect_clone(#accessor)?
+                            <#field_ty as #bevy_reflect_path::PartialReflect>::reflect_clone_and_take(#accessor)?
-                                .take()
-                                .map_err(|value| #bevy_reflect_path::ReflectCloneError::FailedDowncast {
-                                    expected: #bevy_reflect_path::__macro_exports::alloc_utils::Cow::Borrowed(
-                                        <#field_ty as #bevy_reflect_path::TypePath>::type_path()
-                                    ),
-                                    received: #bevy_reflect_path::__macro_exports::alloc_utils::Cow::Owned(
-                                        #bevy_reflect_path::__macro_exports::alloc_utils::ToString::to_string(
-                                            #bevy_reflect_path::DynamicTypePath::reflect_type_path(&*value)
-                                        )
-                                    ),
-                                })?
                         }
                     };
 

crates/bevy_reflect/derive/src/enum_utility.rs

@@ -316,9 +316,7 @@ impl<'a> VariantBuilder for ReflectCloneVariantBuilder<'a> {
 
     fn construct_field(&self, field: VariantField) -> TokenStream {
         let bevy_reflect_path = self.reflect_enum.meta().bevy_reflect_path();
-
         let field_ty = field.field.reflected_type();
-
         let alias = field.alias;
         let alias = match &field.field.attrs.remote {
             Some(wrapper_ty) => {
@@ -332,18 +330,7 @@ impl<'a> VariantBuilder for ReflectCloneVariantBuilder<'a> {
         match &field.field.attrs.clone {
             CloneBehavior::Default => {
                 quote! {
-                    #bevy_reflect_path::PartialReflect::reflect_clone(#alias)?
+                    <#field_ty as #bevy_reflect_path::PartialReflect>::reflect_clone_and_take(#alias)?
-                        .take()
-                        .map_err(|value| #bevy_reflect_path::ReflectCloneError::FailedDowncast {
-                            expected: #bevy_reflect_path::__macro_exports::alloc_utils::Cow::Borrowed(
-                                <#field_ty as #bevy_reflect_path::TypePath>::type_path()
-                            ),
-                            received: #bevy_reflect_path::__macro_exports::alloc_utils::Cow::Owned(
-                                #bevy_reflect_path::__macro_exports::alloc_utils::ToString::to_string(
-                                    #bevy_reflect_path::DynamicTypePath::reflect_type_path(&*value)
-                                )
-                            ),
-                        })?
                 }
             }
             CloneBehavior::Trait => {

crates/bevy_reflect/derive/src/lib.rs

@@ -231,11 +231,11 @@ fn match_reflect_impls(ast: DeriveInput, source: ReflectImplSource) -> TokenStre
 /// // Generates a where clause like:
 /// // impl bevy_reflect::Reflect for Foo
 /// // where
-/// //   Self: Any + Send + Sync,
+/// //   Foo: Any + Send + Sync,
-/// //   Vec<Foo>: FromReflect + TypePath,
+/// //   Vec<Foo>: FromReflect + TypePath + MaybeTyped + RegisterForReflection,
 /// ```
 ///
-/// In this case, `Foo` is given the bounds `Vec<Foo>: FromReflect + TypePath`,
+/// In this case, `Foo` is given the bounds `Vec<Foo>: FromReflect + ...`,
 /// which requires that `Foo` implements `FromReflect`,
 /// which requires that `Vec<Foo>` implements `FromReflect`,
 /// and so on, resulting in the error.
@@ -283,10 +283,10 @@ fn match_reflect_impls(ast: DeriveInput, source: ReflectImplSource) -> TokenStre
 /// //
 /// // impl<T: Trait> bevy_reflect::Reflect for Foo<T>
 /// // where
-/// //   Self: Any + Send + Sync,
+/// //   Foo<T>: Any + Send + Sync,
 /// //   T::Assoc: Default,
 /// //   T: TypePath,
-/// //   T::Assoc: FromReflect + TypePath,
+/// //   T::Assoc: FromReflect + TypePath + MaybeTyped + RegisterForReflection,
 /// //   T::Assoc: List,
 /// // {/* ... */}
 /// ```

crates/bevy_reflect/derive/src/where_clause_options.rs

@@ -1,8 +1,8 @@
 use crate::derive_data::ReflectMeta;
 use bevy_macro_utils::fq_std::{FQAny, FQSend, FQSync};
-use proc_macro2::TokenStream;
+use proc_macro2::{TokenStream, TokenTree};
 use quote::{quote, ToTokens};
-use syn::{punctuated::Punctuated, Token, Type, WhereClause};
+use syn::{punctuated::Punctuated, Ident, Token, Type, WhereClause};
 
 /// Options defining how to extend the `where` clause for reflection.
 pub(crate) struct WhereClauseOptions<'a, 'b> {
@@ -29,15 +29,24 @@ impl<'a, 'b> WhereClauseOptions<'a, 'b> {
         self.meta
     }
 
-    /// Extends the `where` clause for a type with additional bounds needed for the reflection impls.
+    /// Extends the `where` clause for a type with additional bounds needed for the reflection
+    /// impls.
     ///
     /// The default bounds added are as follows:
-    /// - `Self` has the bounds `Any + Send + Sync`
+    /// - `Self` has:
-    /// - Type parameters have the bound `TypePath` unless `#[reflect(type_path = false)]` is present
+    ///   - `Any + Send + Sync` bounds, if generic over types
-    /// - Active fields have the bounds `TypePath` and either `PartialReflect` if `#[reflect(from_reflect = false)]` is present
+    ///   - An `Any` bound, if generic over lifetimes but not types
-    ///   or `FromReflect` otherwise (or no bounds at all if `#[reflect(no_field_bounds)]` is present)
+    ///   - No bounds, if generic over neither types nor lifetimes
+    /// - Any given bounds in a `where` clause on the type
+    /// - Type parameters have the bound `TypePath` unless `#[reflect(type_path = false)]` is
+    ///   present
+    /// - Active fields with non-generic types have the bounds `TypePath`, either `PartialReflect`
+    ///   if `#[reflect(from_reflect = false)]` is present or `FromReflect` otherwise,
+    ///   `MaybeTyped`, and `RegisterForReflection` (or no bounds at all if
+    ///   `#[reflect(no_field_bounds)]` is present)
     ///
-    /// When the derive is used with `#[reflect(where)]`, the bounds specified in the attribute are added as well.
+    /// When the derive is used with `#[reflect(where)]`, the bounds specified in the attribute are
+    /// added as well.
     ///
     /// # Example
     ///
@@ -55,57 +64,69 @@ impl<'a, 'b> WhereClauseOptions<'a, 'b> {
     /// ```ignore (bevy_reflect is not accessible from this crate)
     /// where
     ///   // `Self` bounds:
-    ///   Self: Any + Send + Sync,
+    ///   Foo<T, U>: Any + Send + Sync,
     ///   // Type parameter bounds:
     ///   T: TypePath,
     ///   U: TypePath,
-    ///   // Field bounds
+    ///   // Active non-generic field bounds
-    ///   T: FromReflect + TypePath,
+    ///   T: FromReflect + TypePath + MaybeTyped + RegisterForReflection,
+    ///
     /// ```
     ///
-    /// If we had added `#[reflect(where T: MyTrait)]` to the type, it would instead generate:
+    /// If we add various things to the type:
+    ///
+    /// ```ignore (bevy_reflect is not accessible from this crate)
+    /// #[derive(Reflect)]
+    /// #[reflect(where T: MyTrait)]
+    /// #[reflect(no_field_bounds)]
+    /// struct Foo<T, U>
+    ///     where T: Clone
+    /// {
+    ///   a: T,
+    ///   #[reflect(ignore)]
+    ///   b: U
+    /// }
+    /// ```
+    ///
+    /// It will instead generate the following where clause:
     ///
     /// ```ignore (bevy_reflect is not accessible from this crate)
     /// where
     ///   // `Self` bounds:
-    ///   Self: Any + Send + Sync,
+    ///   Foo<T, U>: Any + Send + Sync,
-    ///   // Type parameter bounds:
+    ///   // Given bounds:
-    ///   T: TypePath,
+    ///   T: Clone,
-    ///   U: TypePath,
-    ///   // Field bounds
-    ///   T: FromReflect + TypePath,
-    ///   // Custom bounds
-    ///   T: MyTrait,
-    /// ```
-    ///
-    /// And if we also added `#[reflect(no_field_bounds)]` to the type, it would instead generate:
-    ///
-    /// ```ignore (bevy_reflect is not accessible from this crate)
-    /// where
-    ///   // `Self` bounds:
-    ///   Self: Any + Send + Sync,
     ///   // Type parameter bounds:
     ///   T: TypePath,
     ///   U: TypePath,
+    ///   // No active non-generic field bounds
     ///   // Custom bounds
     ///   T: MyTrait,
     /// ```
     pub fn extend_where_clause(&self, where_clause: Option<&WhereClause>) -> TokenStream {
-        // We would normally just use `Self`, but that won't work for generating things like assertion functions
+        let mut generic_where_clause = quote! { where };
-        // and trait impls for a type's reference (e.g. `impl FromArg for &MyType`)
+
+        // Bounds on `Self`. We would normally just use `Self`, but that won't work for generating
+        // things like assertion functions and trait impls for a type's reference (e.g. `impl
+        // FromArg for &MyType`).
+        let generics = self.meta.type_path().generics();
+        if generics.type_params().next().is_some() {
+            // Generic over types? We need `Any + Send + Sync`.
             let this = self.meta.type_path().true_type();
+            generic_where_clause.extend(quote! { #this: #FQAny + #FQSend + #FQSync, });
+        } else if generics.lifetimes().next().is_some() {
+            // Generic only over lifetimes? We need `'static`.
+            let this = self.meta.type_path().true_type();
+            generic_where_clause.extend(quote! { #this: 'static, });
+        }
 
-        let required_bounds = self.required_bounds();
+        // Maintain existing where clause bounds, if any.
-
+        if let Some(where_clause) = where_clause {
-        // Maintain existing where clause, if any.
-        let mut generic_where_clause = if let Some(where_clause) = where_clause {
             let predicates = where_clause.predicates.iter();
-            quote! {where #this: #required_bounds, #(#predicates,)*}
+            generic_where_clause.extend(quote! { #(#predicates,)* });
-        } else {
+        }
-            quote!(where #this: #required_bounds,)
-        };
 
-        // Add additional reflection trait bounds
+        // Add additional reflection trait bounds.
         let predicates = self.predicates();
         generic_where_clause.extend(quote! {
             #predicates
@@ -157,19 +178,57 @@ impl<'a, 'b> WhereClauseOptions<'a, 'b> {
             let bevy_reflect_path = self.meta.bevy_reflect_path();
             let reflect_bound = self.reflect_bound();
 
-            // `TypePath` is always required for active fields since they are used to
+            // Get the identifiers of all type parameters.
-            // construct `NamedField` and `UnnamedField` instances for the `Typed` impl.
+            let type_param_idents = self
-            // Likewise, `GetTypeRegistration` is always required for active fields since
+                .meta
-            // they are used to register the type's dependencies.
+                .type_path()
-            Some(self.active_fields.iter().map(move |ty| {
+                .generics()
+                .type_params()
+                .map(|type_param| type_param.ident.clone())
+                .collect::<Vec<Ident>>();
+
+            // Do any of the identifiers in `idents` appear in `token_stream`?
+            fn is_any_ident_in_token_stream(idents: &[Ident], token_stream: TokenStream) -> bool {
+                for token_tree in token_stream {
+                    match token_tree {
+                        TokenTree::Ident(ident) => {
+                            if idents.contains(&ident) {
+                                return true;
+                            }
+                        }
+                        TokenTree::Group(group) => {
+                            if is_any_ident_in_token_stream(idents, group.stream()) {
+                                return true;
+                            }
+                        }
+                        TokenTree::Punct(_) | TokenTree::Literal(_) => {}
+                    }
+                }
+                false
+            }
+
+            Some(self.active_fields.iter().filter_map(move |ty| {
+                // Field type bounds are only required if `ty` is generic. How to determine that?
+                // Search `ty`s token stream for identifiers that match the identifiers from the
+                // function's type params. E.g. if `T` and `U` are the type param identifiers and
+                // `ty` is `Vec<[T; 4]>` then the `T` identifiers match. This is a bit hacky, but
+                // it works.
+                let is_generic =
+                    is_any_ident_in_token_stream(&type_param_idents, ty.to_token_stream());
+
+                is_generic.then(|| {
                     quote!(
                         #ty: #reflect_bound
+                            // Needed to construct `NamedField` and `UnnamedField` instances for
+                            // the `Typed` impl.
                             + #bevy_reflect_path::TypePath
                             // Needed for `Typed` impls
                             + #bevy_reflect_path::MaybeTyped
-                        // Needed for `GetTypeRegistration` impls
+                            // Needed for registering type dependencies in the
+                            // `GetTypeRegistration` impl.
                             + #bevy_reflect_path::__macro_exports::RegisterForReflection
                     )
+                })
             }))
         }
     }
@@ -194,9 +253,4 @@ impl<'a, 'b> WhereClauseOptions<'a, 'b> {
             None
         }
     }
-
-    /// The minimum required bounds for a type to be reflected.
-    fn required_bounds(&self) -> TokenStream {
-        quote!(#FQAny + #FQSend + #FQSync)
-    }
 }

crates/bevy_reflect/src/impls/alloc/collections/btree/map.rs

@@ -9,7 +9,6 @@ use crate::{
     type_registry::{FromType, GetTypeRegistration, ReflectFromPtr, TypeRegistration},
     utility::GenericTypeInfoCell,
 };
-use alloc::borrow::Cow;
 use alloc::vec::Vec;
 use bevy_platform::prelude::*;
 use bevy_reflect_derive::impl_type_path;
@@ -144,21 +143,8 @@ where
     fn reflect_clone(&self) -> Result<Box<dyn Reflect>, ReflectCloneError> {
         let mut map = Self::new();
         for (key, value) in self.iter() {
-            let key =
+            let key = key.reflect_clone_and_take()?;
-                key.reflect_clone()?
+            let value = value.reflect_clone_and_take()?;
-                    .take()
-                    .map_err(|_| ReflectCloneError::FailedDowncast {
-                        expected: Cow::Borrowed(<Self as TypePath>::type_path()),
-                        received: Cow::Owned(key.reflect_type_path().to_string()),
-                    })?;
-            let value =
-                value
-                    .reflect_clone()?
-                    .take()
-                    .map_err(|_| ReflectCloneError::FailedDowncast {
-                        expected: Cow::Borrowed(<Self as TypePath>::type_path()),
-                        received: Cow::Owned(value.reflect_type_path().to_string()),
-                    })?;
             map.insert(key, value);
         }
 

crates/bevy_reflect/src/impls/core/sync.rs

@@ -10,7 +10,6 @@ use crate::{
 };
 use bevy_platform::prelude::*;
 use bevy_reflect_derive::impl_type_path;
-use core::any::Any;
 use core::fmt;
 
 macro_rules! impl_reflect_for_atomic {
@@ -21,10 +20,7 @@ macro_rules! impl_reflect_for_atomic {
             #[cfg(feature = "functions")]
             crate::func::macros::impl_function_traits!($ty);
 
-            impl GetTypeRegistration for $ty
+            impl GetTypeRegistration for $ty {
-            where
-                $ty: Any + Send + Sync,
-            {
                 fn get_type_registration() -> TypeRegistration {
                     let mut registration = TypeRegistration::of::<Self>();
                     registration.insert::<ReflectFromPtr>(FromType::<Self>::from_type());
@@ -42,10 +38,7 @@ macro_rules! impl_reflect_for_atomic {
                 }
             }
 
-            impl Typed for $ty
+            impl Typed for $ty {
-            where
-                $ty: Any + Send + Sync,
-            {
                 fn type_info() -> &'static TypeInfo {
                     static CELL: NonGenericTypeInfoCell = NonGenericTypeInfoCell::new();
                     CELL.get_or_set(|| {
@@ -55,10 +48,7 @@ macro_rules! impl_reflect_for_atomic {
                 }
             }
 
-            impl PartialReflect for $ty
+            impl PartialReflect for $ty {
-            where
-                $ty: Any + Send + Sync,
-            {
                 #[inline]
                 fn get_represented_type_info(&self) -> Option<&'static TypeInfo> {
                     Some(<Self as Typed>::type_info())
@@ -128,10 +118,7 @@ macro_rules! impl_reflect_for_atomic {
                 }
             }
 
-            impl FromReflect for $ty
+            impl FromReflect for $ty {
-            where
-                $ty: Any + Send + Sync,
-            {
                 fn from_reflect(reflect: &dyn PartialReflect) -> Option<Self> {
                     Some(<$ty>::new(
                         reflect.try_downcast_ref::<$ty>()?.load($ordering),
@@ -140,7 +127,7 @@ macro_rules! impl_reflect_for_atomic {
             }
         };
 
-        impl_full_reflect!(for $ty where $ty: Any + Send + Sync);
+        impl_full_reflect!(for $ty);
     };
 }
 

crates/bevy_reflect/src/impls/macros/list.rs

@@ -113,14 +113,7 @@ macro_rules! impl_reflect_for_veclike {
                 fn reflect_clone(&self) -> Result<bevy_platform::prelude::Box<dyn $crate::reflect::Reflect>, $crate::error::ReflectCloneError> {
                     Ok(bevy_platform::prelude::Box::new(
                         self.iter()
-                            .map(|value| {
+                            .map(|value| value.reflect_clone_and_take())
-                                value.reflect_clone()?.take().map_err(|_| {
-                                    $crate::error::ReflectCloneError::FailedDowncast {
-                                        expected: alloc::borrow::Cow::Borrowed(<T as $crate::type_path::TypePath>::type_path()),
-                                        received: alloc::borrow::Cow::Owned(alloc::string::ToString::to_string(value.reflect_type_path())),
-                                    }
-                                })
-                            })
                             .collect::<Result<Self, $crate::error::ReflectCloneError>>()?,
                     ))
                 }

crates/bevy_reflect/src/impls/macros/map.rs

@@ -146,18 +146,8 @@ macro_rules! impl_reflect_for_hashmap {
                 fn reflect_clone(&self) -> Result<bevy_platform::prelude::Box<dyn $crate::reflect::Reflect>, $crate::error::ReflectCloneError> {
                     let mut map = Self::with_capacity_and_hasher(self.len(), S::default());
                     for (key, value) in self.iter() {
-                        let key = key.reflect_clone()?.take().map_err(|_| {
+                        let key = key.reflect_clone_and_take()?;
-                            $crate::error::ReflectCloneError::FailedDowncast {
+                        let value = value.reflect_clone_and_take()?;
-                                expected: alloc::borrow::Cow::Borrowed(<K as $crate::type_path::TypePath>::type_path()),
-                                received: alloc::borrow::Cow::Owned(alloc::string::ToString::to_string(key.reflect_type_path())),
-                            }
-                        })?;
-                        let value = value.reflect_clone()?.take().map_err(|_| {
-                            $crate::error::ReflectCloneError::FailedDowncast {
-                                expected: alloc::borrow::Cow::Borrowed(<V as $crate::type_path::TypePath>::type_path()),
-                                received: alloc::borrow::Cow::Owned(alloc::string::ToString::to_string(value.reflect_type_path())),
-                            }
-                        })?;
                         map.insert(key, value);
                     }
 

crates/bevy_reflect/src/impls/macros/set.rs

@@ -129,12 +129,7 @@ macro_rules! impl_reflect_for_hashset {
                 fn reflect_clone(&self) -> Result<bevy_platform::prelude::Box<dyn $crate::reflect::Reflect>, $crate::error::ReflectCloneError> {
                     let mut set = Self::with_capacity_and_hasher(self.len(), S::default());
                     for value in self.iter() {
-                        let value = value.reflect_clone()?.take().map_err(|_| {
+                        let value = value.reflect_clone_and_take()?;
-                            $crate::error::ReflectCloneError::FailedDowncast {
-                                expected: alloc::borrow::Cow::Borrowed(<V as $crate::type_path::TypePath>::type_path()),
-                                received: alloc::borrow::Cow::Owned(alloc::string::ToString::to_string(value.reflect_type_path())),
-                            }
-                        })?;
                         set.insert(value);
                     }
 

crates/bevy_reflect/src/impls/smallvec.rs

@@ -4,7 +4,7 @@ use crate::{
     ReflectMut, ReflectOwned, ReflectRef, TypeInfo, TypeParamInfo, TypePath, TypeRegistration,
     Typed,
 };
-use alloc::{borrow::Cow, boxed::Box, string::ToString, vec::Vec};
+use alloc::{boxed::Box, vec::Vec};
 use bevy_reflect::ReflectCloneError;
 use bevy_reflect_derive::impl_type_path;
 use core::any::Any;
@@ -137,16 +137,11 @@ where
 
     fn reflect_clone(&self) -> Result<Box<dyn Reflect>, ReflectCloneError> {
         Ok(Box::new(
-            self.iter()
+            // `(**self)` avoids getting `SmallVec<T> as List::iter`, which
-                .map(|value| {
+            // would give us the wrong item type.
-                    value
+            (**self)
-                        .reflect_clone()?
+                .iter()
-                        .take()
+                .map(PartialReflect::reflect_clone_and_take)
-                        .map_err(|_| ReflectCloneError::FailedDowncast {
-                            expected: Cow::Borrowed(<T::Item as TypePath>::type_path()),
-                            received: Cow::Owned(value.reflect_type_path().to_string()),
-                        })
-                })
                 .collect::<Result<Self, ReflectCloneError>>()?,
         ))
     }

crates/bevy_reflect/src/kind.rs

@@ -215,7 +215,7 @@ pub enum ReflectRef<'a> {
     /// [function-like]: Function
     #[cfg(feature = "functions")]
     Function(&'a dyn Function),
-    /// An immutable refeence to an [opaque] type.
+    /// An immutable reference to an [opaque] type.
     ///
     /// [opaque]: ReflectKind::Opaque
     Opaque(&'a dyn PartialReflect),
@@ -281,7 +281,7 @@ pub enum ReflectMut<'a> {
     ///
     /// [function-like]: Function
     Function(&'a mut dyn Function),
-    /// A mutable refeence to an [opaque] type.
+    /// A mutable reference to an [opaque] type.
     ///
     /// [opaque]: ReflectKind::Opaque
     Opaque(&'a mut dyn PartialReflect),

crates/bevy_reflect/src/lib.rs

@@ -2615,9 +2615,11 @@ bevy_reflect::tests::Test {
         #[reflect(where T: Default)]
         struct Foo<T>(String, #[reflect(ignore)] PhantomData<T>);
 
+        #[expect(dead_code, reason = "Bar is never constructed")]
         #[derive(Default, TypePath)]
         struct Bar;
 
+        #[expect(dead_code, reason = "Baz is never constructed")]
         #[derive(TypePath)]
         struct Baz;
 
@@ -2631,6 +2633,7 @@ bevy_reflect::tests::Test {
         #[reflect(where)]
         struct Foo<T>(String, #[reflect(ignore)] PhantomData<T>);
 
+        #[expect(dead_code, reason = "Bar is never constructed")]
         #[derive(TypePath)]
         struct Bar;
 
@@ -2665,6 +2668,7 @@ bevy_reflect::tests::Test {
         #[reflect(where T::Assoc: core::fmt::Display)]
         struct Foo<T: Trait>(T::Assoc);
 
+        #[expect(dead_code, reason = "Bar is never constructed")]
         #[derive(TypePath)]
         struct Bar;
 
@@ -2672,6 +2676,7 @@ bevy_reflect::tests::Test {
             type Assoc = usize;
         }
 
+        #[expect(dead_code, reason = "Baz is never constructed")]
         #[derive(TypePath)]
         struct Baz;
 

crates/bevy_reflect/src/reflect.rs

@@ -313,6 +313,24 @@ where
         })
     }
 
+    /// For a type implementing [`PartialReflect`], combines `reflect_clone` and
+    /// `take` in a useful fashion, automatically constructing an appropriate
+    /// [`ReflectCloneError`] if the downcast fails.
+    ///
+    /// This is an associated function, rather than a method, because methods
+    /// with generic types prevent dyn-compatibility.
+    fn reflect_clone_and_take<T: 'static>(&self) -> Result<T, ReflectCloneError>
+    where
+        Self: TypePath + Sized,
+    {
+        self.reflect_clone()?
+            .take()
+            .map_err(|_| ReflectCloneError::FailedDowncast {
+                expected: Cow::Borrowed(<Self as TypePath>::type_path()),
+                received: Cow::Owned(self.reflect_type_path().to_string()),
+            })
+    }
+
     /// Returns a hash of the value (which includes the type).
     ///
     /// If the underlying type does not support hashing, returns `None`.

crates/bevy_render/src/pipelined_rendering.rs

@@ -197,7 +197,7 @@ fn renderer_extract(app_world: &mut World, _world: &mut World) {
                 render_channels.send_blocking(render_app);
             } else {
                 // Renderer thread panicked
-                world.send_event(AppExit::error());
+                world.write_event(AppExit::error());
             }
         });
     });

crates/bevy_state/macros/Cargo.toml

@@ -13,7 +13,6 @@ bevy_macro_utils = { path = "../../bevy_macro_utils", version = "0.17.0-dev" }
 
 syn = { version = "2.0", features = ["full"] }
 quote = "1.0"
-proc-macro2 = "1.0"
 
 [lints]
 workspace = true

crates/bevy_state/src/app.rs

@@ -107,7 +107,7 @@ impl AppExtStates for SubApp {
             );
             S::register_state(schedule);
             let state = self.world().resource::<State<S>>().get().clone();
-            self.world_mut().send_event(StateTransitionEvent {
+            self.world_mut().write_event(StateTransitionEvent {
                 exited: None,
                 entered: Some(state),
             });
@@ -132,7 +132,7 @@ impl AppExtStates for SubApp {
                 "The `StateTransition` schedule is missing. Did you forget to add StatesPlugin or DefaultPlugins before calling insert_state?"
             );
             S::register_state(schedule);
-            self.world_mut().send_event(StateTransitionEvent {
+            self.world_mut().write_event(StateTransitionEvent {
                 exited: None,
                 entered: Some(state),
             });
@@ -145,7 +145,7 @@ impl AppExtStates for SubApp {
             self.world_mut()
                 .resource_mut::<Events<StateTransitionEvent<S>>>()
                 .clear();
-            self.world_mut().send_event(StateTransitionEvent {
+            self.world_mut().write_event(StateTransitionEvent {
                 exited: None,
                 entered: Some(state),
             });
@@ -169,7 +169,7 @@ impl AppExtStates for SubApp {
                 .world()
                 .get_resource::<State<S>>()
                 .map(|s| s.get().clone());
-            self.world_mut().send_event(StateTransitionEvent {
+            self.world_mut().write_event(StateTransitionEvent {
                 exited: None,
                 entered: state,
             });
@@ -200,7 +200,7 @@ impl AppExtStates for SubApp {
                 .world()
                 .get_resource::<State<S>>()
                 .map(|s| s.get().clone());
-            self.world_mut().send_event(StateTransitionEvent {
+            self.world_mut().write_event(StateTransitionEvent {
                 exited: None,
                 entered: state,
             });

crates/bevy_state/src/state/transitions.rs

@@ -50,6 +50,8 @@ pub struct OnTransition<S: States> {
 /// }
 /// ```
 ///
+/// This schedule is split up into four phases, as described in [`StateTransitionSteps`].
+///
 /// [`PreStartup`]: https://docs.rs/bevy/latest/bevy/prelude/struct.PreStartup.html
 /// [`PreUpdate`]: https://docs.rs/bevy/latest/bevy/prelude/struct.PreUpdate.html
 #[derive(ScheduleLabel, Clone, Debug, PartialEq, Eq, Hash, Default)]

crates/bevy_state/src/state_scoped_events.rs

@@ -213,8 +213,8 @@ mod tests {
         app.add_event::<StateScopedEvent>()
             .clear_events_on_exit_state::<StateScopedEvent>(TestState::A);
 
-        app.world_mut().send_event(StandardEvent).unwrap();
+        app.world_mut().write_event(StandardEvent).unwrap();
-        app.world_mut().send_event(StateScopedEvent).unwrap();
+        app.world_mut().write_event(StateScopedEvent).unwrap();
         assert!(!app.world().resource::<Events<StandardEvent>>().is_empty());
         assert!(!app
             .world()
@@ -243,8 +243,8 @@ mod tests {
         app.add_event::<StateScopedEvent>()
             .clear_events_on_enter_state::<StateScopedEvent>(TestState::B);
 
-        app.world_mut().send_event(StandardEvent).unwrap();
+        app.world_mut().write_event(StandardEvent).unwrap();
-        app.world_mut().send_event(StateScopedEvent).unwrap();
+        app.world_mut().write_event(StateScopedEvent).unwrap();
         assert!(!app.world().resource::<Events<StandardEvent>>().is_empty());
         assert!(!app
             .world()

crates/bevy_time/src/lib.rs

@@ -343,15 +343,15 @@ mod tests {
         let fixed_update_timestep = Time::<Fixed>::default().timestep();
         let time_step = fixed_update_timestep / 2 + Duration::from_millis(1);
 
-        fn send_event(mut events: ResMut<Events<DummyEvent>>) {
+        fn write_event(mut events: ResMut<Events<DummyEvent>>) {
-            events.send(DummyEvent);
+            events.write(DummyEvent);
         }
 
         let mut app = App::new();
         app.add_plugins(TimePlugin)
             .add_event::<DummyEvent>()
             .init_resource::<FixedUpdateCounter>()
-            .add_systems(Startup, send_event)
+            .add_systems(Startup, write_event)
             .add_systems(FixedUpdate, count_fixed_updates)
             .insert_resource(TimeUpdateStrategy::ManualDuration(time_step));
 

crates/bevy_ui/Cargo.toml

@@ -36,10 +36,8 @@ bevy_platform = { path = "../bevy_platform", version = "0.17.0-dev", default-fea
 taffy = { version = "0.7" }
 serde = { version = "1", features = ["derive"], optional = true }
 uuid = { version = "1.1", features = ["v4"], optional = true }
-bytemuck = { version = "1.5", features = ["derive"] }
 thiserror = { version = "2", default-features = false }
 derive_more = { version = "2", default-features = false, features = ["from"] }
-nonmax = "0.5"
 smallvec = { version = "1", default-features = false }
 accesskit = "0.19"
 tracing = { version = "0.1", default-features = false, features = ["std"] }

crates/bevy_ui/src/gradients.rs

@@ -631,6 +631,14 @@ pub enum InterpolationColorSpace {
     Srgb,
     /// Interpolates in linear sRGB space.
     LinearRgb,
+    /// Interpolates in HSL space, taking the shortest hue path.
+    Hsl,
+    /// Interpolates in HSL space, taking the longest hue path.
+    HslLong,
+    /// Interpolates in HSV space, taking the shortest hue path.
+    Hsv,
+    /// Interpolates in HSV space, taking the longest hue path.
+    HsvLong,
 }
 
 /// Set the color space used for interpolation.

crates/bevy_ui/src/widget/viewport.rs

@@ -147,7 +147,7 @@ pub fn viewport_picking(
             };
             viewport_pointer_location.location = Some(location.clone());
 
-            commands.send_event(PointerInput {
+            commands.write_event(PointerInput {
                 location,
                 pointer_id: viewport_pointer_id,
                 action: input.action,

crates/bevy_ui_render/Cargo.toml

@@ -23,7 +23,6 @@ bevy_render = { path = "../bevy_render", version = "0.17.0-dev" }
 bevy_sprite = { path = "../bevy_sprite", version = "0.17.0-dev" }
 bevy_picking = { path = "../bevy_picking", version = "0.17.0-dev", optional = true }
 bevy_transform = { path = "../bevy_transform", version = "0.17.0-dev" }
-bevy_window = { path = "../bevy_window", version = "0.17.0-dev" }
 bevy_utils = { path = "../bevy_utils", version = "0.17.0-dev" }
 bevy_platform = { path = "../bevy_platform", version = "0.17.0-dev", default-features = false, features = [
   "std",
@@ -32,23 +31,13 @@ bevy_ui = { path = "../bevy_ui", version = "0.17.0-dev" }
 bevy_text = { path = "../bevy_text", version = "0.17.0-dev", default-features = false }
 
 # other
-serde = { version = "1", features = ["derive"], optional = true }
 bytemuck = { version = "1.5", features = ["derive"] }
-thiserror = { version = "2", default-features = false }
 derive_more = { version = "1", default-features = false, features = ["from"] }
-nonmax = "0.5"
-smallvec = { version = "1", default-features = false }
-accesskit = "0.18"
 tracing = { version = "0.1", default-features = false, features = ["std"] }
 
 [features]
 default = []
-serialize = [
+serialize = ["bevy_math/serialize", "bevy_platform/serialize"]
-  "serde",
-  "smallvec/serde",
-  "bevy_math/serialize",
-  "bevy_platform/serialize",
-]
 bevy_ui_picking_backend = ["bevy_picking"]
 bevy_ui_debug = []
 

crates/bevy_ui_render/src/gradient.rs

@@ -186,6 +186,10 @@ impl SpecializedRenderPipeline for GradientPipeline {
             InterpolationColorSpace::OkLchLong => "IN_OKLCH_LONG",
             InterpolationColorSpace::Srgb => "IN_SRGB",
             InterpolationColorSpace::LinearRgb => "IN_LINEAR_RGB",
+            InterpolationColorSpace::Hsl => "IN_HSL",
+            InterpolationColorSpace::HslLong => "IN_HSL_LONG",
+            InterpolationColorSpace::Hsv => "IN_HSV",
+            InterpolationColorSpace::HsvLong => "IN_HSV_LONG",
         };
 
         let shader_defs = if key.anti_alias {

crates/bevy_ui_render/src/gradient.wgsl

@@ -114,15 +114,15 @@ fn fragment(in: GradientVertexOutput) -> @location(0) vec4<f32> {
     }
 }
 
-// This function converts two linear rgb colors to srgb space, mixes them, and then converts the result back to linear rgb space.
+// This function converts two linear rgba colors to srgba space, mixes them, and then converts the result back to linear rgb space.
-fn mix_linear_rgb_in_srgb_space(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> {
+fn mix_linear_rgba_in_srgba_space(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> {
     let a_srgb = pow(a.rgb, vec3(1. / 2.2));
     let b_srgb = pow(b.rgb, vec3(1. / 2.2));
     let mixed_srgb = mix(a_srgb, b_srgb, t);
     return vec4(pow(mixed_srgb, vec3(2.2)), mix(a.a, b.a, t));
 }
 
-fn linear_rgb_to_oklab(c: vec4<f32>) -> vec4<f32> {
+fn linear_rgba_to_oklaba(c: vec4<f32>) -> vec4<f32> {
     let l = pow(0.41222146 * c.x + 0.53633255 * c.y + 0.051445995 * c.z, 1. / 3.);
     let m = pow(0.2119035 * c.x + 0.6806995 * c.y + 0.10739696 * c.z, 1. / 3.);
     let s = pow(0.08830246 * c.x + 0.28171885 * c.y + 0.6299787 * c.z, 1. / 3.);
@@ -130,11 +130,11 @@ fn linear_rgb_to_oklab(c: vec4<f32>) -> vec4<f32> {
         0.21045426 * l + 0.7936178 * m - 0.004072047 * s,
         1.9779985 * l - 2.4285922 * m + 0.4505937 * s,
         0.025904037 * l + 0.78277177 * m - 0.80867577 * s,
-        c.w
+        c.a
     );
 }
 
-fn oklab_to_linear_rgba(c: vec4<f32>) -> vec4<f32> {
+fn oklaba_to_linear_rgba(c: vec4<f32>) -> vec4<f32> {
     let l_ = c.x + 0.39633778 * c.y + 0.21580376 * c.z;
     let m_ = c.x - 0.105561346 * c.y - 0.06385417 * c.z;
     let s_ = c.x - 0.08948418 * c.y - 1.2914855 * c.z;
@@ -145,26 +145,126 @@ fn oklab_to_linear_rgba(c: vec4<f32>) -> vec4<f32> {
         4.0767417 * l - 3.3077116 * m + 0.23096994 * s,
         -1.268438 * l + 2.6097574 * m - 0.34131938 * s,
         -0.0041960863 * l - 0.7034186 * m + 1.7076147 * s,
-        c.w
+        c.a
     );
 }
 
-fn mix_linear_rgb_in_oklab_space(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> { 
+fn mix_linear_rgba_in_oklaba_space(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> {
-    return oklab_to_linear_rgba(mix(linear_rgb_to_oklab(a), linear_rgb_to_oklab(b), t));
+    return oklaba_to_linear_rgba(mix(linear_rgba_to_oklaba(a), linear_rgba_to_oklaba(b), t));
+}
+
+fn linear_rgba_to_hsla(c: vec4<f32>) -> vec4<f32> {
+    let max = max(max(c.r, c.g), c.b);
+    let min = min(min(c.r, c.g), c.b);
+    let l = (max + min) * 0.5;
+    if max == min {
+        return vec4(0., 0., l, c.a);
+    } else {
+        let delta = max - min;
+        let s = delta / (1. - abs(2. * l - 1.));
+        var h = 0.;
+        if max == c.r {
+            h = ((c.g - c.b) / delta) % 6.;
+        } else if max == c.g {
+            h = ((c.b - c.r) / delta) + 2.;
+        } else {
+            h = ((c.r - c.g) / delta) + 4.;
+        }
+        h = h / 6.;
+        return vec4<f32>(h, s, l, c.a);
+    }
+}
+
+
+fn hsla_to_linear_rgba(hsl: vec4<f32>) -> vec4<f32> {
+    let h = hsl.x;
+    let s = hsl.y;
+    let l = hsl.z;
+    let c = (1.0 - abs(2.0 * l - 1.0)) * s;
+    let hp = h * 6.0;
+    let x = c * (1.0 - abs(hp % 2.0 - 1.0));
+    var r: f32 = 0.0;
+    var g: f32 = 0.0;
+    var b: f32 = 0.0;
+    if 0.0 <= hp && hp < 1.0 {
+        r = c; g = x; b = 0.0;
+    } else if 1.0 <= hp && hp < 2.0 {
+        r = x; g = c; b = 0.0;
+    } else if 2.0 <= hp && hp < 3.0 {
+        r = 0.0; g = c; b = x;
+    } else if 3.0 <= hp && hp < 4.0 {
+        r = 0.0; g = x; b = c;
+    } else if 4.0 <= hp && hp < 5.0 {
+        r = x; g = 0.0; b = c;
+    } else if 5.0 <= hp && hp < 6.0 {
+        r = c; g = 0.0; b = x;
+    }
+    let m = l - 0.5 * c;
+    return vec4<f32>(r + m, g + m, b + m, hsl.a);
+}
+
+fn linear_rgba_to_hsva(c: vec4<f32>) -> vec4<f32> {
+    let maxc = max(max(c.r, c.g), c.b);
+    let minc = min(min(c.r, c.g), c.b);
+    let delta = maxc - minc;
+    var h: f32 = 0.0;
+    var s: f32 = 0.0;
+    let v: f32 = maxc;
+    if delta != 0.0 {
+        s = delta / maxc;
+        if maxc == c.r {
+            h = ((c.g - c.b) / delta) % 6.0;
+        } else if maxc == c.g {
+            h = ((c.b - c.r) / delta) + 2.0;
+        } else {
+            h = ((c.r - c.g) / delta) + 4.0;
+        }
+        h = h / 6.0;
+        if h < 0.0 {
+            h = h + 1.0;
+        }
+    }
+    return vec4<f32>(h, s, v, c.a);
+}
+
+fn hsva_to_linear_rgba(hsva: vec4<f32>) -> vec4<f32> {
+    let h = hsva.x * 6.0;
+    let s = hsva.y;
+    let v = hsva.z;
+    let c = v * s;
+    let x = c * (1.0 - abs(h % 2.0 - 1.0));
+    let m = v - c;
+    var r: f32 = 0.0;
+    var g: f32 = 0.0;
+    var b: f32 = 0.0;
+    if 0.0 <= h && h < 1.0 {
+        r = c; g = x; b = 0.0;
+    } else if 1.0 <= h && h < 2.0 {
+        r = x; g = c; b = 0.0;
+    } else if 2.0 <= h && h < 3.0 {
+        r = 0.0; g = c; b = x;
+    } else if 3.0 <= h && h < 4.0 {
+        r = 0.0; g = x; b = c;
+    } else if 4.0 <= h && h < 5.0 {
+        r = x; g = 0.0; b = c;
+    } else if 5.0 <= h && h < 6.0 {
+        r = c; g = 0.0; b = x;
+    }
+    return vec4<f32>(r + m, g + m, b + m, hsva.a);
 }
 
 /// hue is left in radians and not converted to degrees
-fn linear_rgb_to_oklch(c: vec4<f32>) -> vec4<f32> {
+fn linear_rgba_to_oklcha(c: vec4<f32>) -> vec4<f32> {
-    let o = linear_rgb_to_oklab(c);
+    let o = linear_rgba_to_oklaba(c);
     let chroma = sqrt(o.y * o.y + o.z * o.z);
     let hue = atan2(o.z, o.y);
-    return vec4(o.x, chroma, select(hue + TAU, hue, hue < 0.0), o.w);
+    return vec4(o.x, chroma, rem_euclid(hue, TAU), o.a);
 }
 
-fn oklch_to_linear_rgb(c: vec4<f32>) -> vec4<f32> {
+fn oklcha_to_linear_rgba(c: vec4<f32>) -> vec4<f32> {
     let a = c.y * cos(c.z);
     let b = c.y * sin(c.z);
-    return oklab_to_linear_rgba(vec4(c.x, a, b, c.w));
+    return oklaba_to_linear_rgba(vec4(c.x, a, b, c.a));
 }
 
 fn rem_euclid(a: f32, b: f32) -> f32 {
@@ -178,31 +278,82 @@ fn lerp_hue(a: f32, b: f32, t: f32) -> f32 {
 
 fn lerp_hue_long(a: f32, b: f32, t: f32) -> f32 {
     let diff = rem_euclid(b - a + PI, TAU) - PI;
-    return rem_euclid(a + select(diff - TAU, diff + TAU, 0. < diff) * t, TAU);
+    return rem_euclid(a + (diff + select(TAU, -TAU, 0. < diff)) * t, TAU);
 }
 
-fn mix_oklch(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> {
+fn mix_oklcha(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> {
+    let ah = select(a.z, b.z, a.y == 0.);
+    let bh = select(b.z, a.z, b.y == 0.);
     return vec4(
         mix(a.xy, b.xy, t),
-        lerp_hue(a.z, b.z, t),
+        lerp_hue(ah, bh, t),
+        mix(a.a, b.a, t)
+    );
+}
+
+fn mix_oklcha_long(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> {
+    let ah = select(a.z, b.z, a.y == 0.);
+    let bh = select(b.z, a.z, b.y == 0.);
+    return vec4(
+        mix(a.xy, b.xy, t),
+        lerp_hue_long(ah, bh, t),
         mix(a.w, b.w, t)
     );
 }
 
-fn mix_oklch_long(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> {
+fn mix_linear_rgba_in_oklcha_space(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> {
-    return vec4(
+    return oklcha_to_linear_rgba(mix_oklcha(linear_rgba_to_oklcha(a), linear_rgba_to_oklcha(b), t));
-        mix(a.xy, b.xy, t),
-        lerp_hue_long(a.z, b.z, t),
-        mix(a.w, b.w, t)
-    );
 }
 
-fn mix_linear_rgb_in_oklch_space(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> {
+fn mix_linear_rgba_in_oklcha_space_long(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> {
-    return oklch_to_linear_rgb(mix_oklch(linear_rgb_to_oklch(a), linear_rgb_to_oklch(b), t));
+    return oklcha_to_linear_rgba(mix_oklcha_long(linear_rgba_to_oklcha(a), linear_rgba_to_oklcha(b), t));
 }
 
-fn mix_linear_rgb_in_oklch_space_long(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> {
+fn mix_linear_rgba_in_hsva_space(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> {
-    return oklch_to_linear_rgb(mix_oklch_long(linear_rgb_to_oklch(a), linear_rgb_to_oklch(b), t));
+    let ha = linear_rgba_to_hsva(a);
+    let hb = linear_rgba_to_hsva(b);
+    var h: f32;
+    if ha.y == 0. {
+        h = hb.x;
+    } else if hb.y == 0. {
+        h = ha.x;
+    } else {
+        h = lerp_hue(ha.x * TAU, hb.x * TAU, t) / TAU;
+    }
+    let s = mix(ha.y, hb.y, t);
+    let v = mix(ha.z, hb.z, t);
+    let a_alpha = mix(ha.a, hb.a, t);
+    return hsva_to_linear_rgba(vec4<f32>(h, s, v, a_alpha));
+}
+
+fn mix_linear_rgba_in_hsva_space_long(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> {
+    let ha = linear_rgba_to_hsva(a);
+    let hb = linear_rgba_to_hsva(b);
+    let h = lerp_hue_long(ha.x * TAU, hb.x * TAU, t) / TAU;
+    let s = mix(ha.y, hb.y, t);
+    let v = mix(ha.z, hb.z, t);
+    let a_alpha = mix(ha.a, hb.a, t);
+    return hsva_to_linear_rgba(vec4<f32>(h, s, v, a_alpha));
+}
+
+fn mix_linear_rgba_in_hsla_space(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> {
+    let ha = linear_rgba_to_hsla(a);
+    let hb = linear_rgba_to_hsla(b);
+    let h = lerp_hue(ha.x * TAU, hb.x * TAU, t) / TAU;
+    let s = mix(ha.y, hb.y, t);
+    let l = mix(ha.z, hb.z, t);
+    let a_alpha = mix(ha.a, hb.a, t);
+    return hsla_to_linear_rgba(vec4<f32>(h, s, l, a_alpha));
+}
+
+fn mix_linear_rgba_in_hsla_space_long(a: vec4<f32>, b: vec4<f32>, t: f32) -> vec4<f32> {
+    let ha = linear_rgba_to_hsla(a);
+    let hb = linear_rgba_to_hsla(b);
+    let h = lerp_hue_long(ha.x * TAU, hb.x * TAU, t) / TAU;
+    let s = mix(ha.y, hb.y, t);
+    let l = mix(ha.z, hb.z, t);
+    let a_alpha = mix(ha.a, hb.a, t);
+    return hsla_to_linear_rgba(vec4<f32>(h, s, l, a_alpha));
 }
 
 // These functions are used to calculate the distance in gradient space from the start of the gradient to the point.
@@ -277,13 +428,21 @@ fn interpolate_gradient(
     }
     
 #ifdef IN_SRGB
-    return mix_linear_rgb_in_srgb_space(start_color, end_color, t);
+    return mix_linear_rgba_in_srgba_space(start_color, end_color, t);
 #else ifdef IN_OKLAB
-    return mix_linear_rgb_in_oklab_space(start_color, end_color, t);
+    return mix_linear_rgba_in_oklaba_space(start_color, end_color, t);
 #else ifdef IN_OKLCH
-    return mix_linear_rgb_in_oklch_space(start_color, end_color, t);
+    return mix_linear_rgba_in_oklcha_space(start_color, end_color, t);
 #else ifdef IN_OKLCH_LONG
-    return mix_linear_rgb_in_oklch_space_long(start_color, end_color, t);
+    return mix_linear_rgba_in_oklcha_space_long(start_color, end_color, t);
+#else ifdef IN_HSV
+    return mix_linear_rgba_in_hsva_space(start_color, end_color, t);
+#else ifdef IN_HSV_LONG
+    return mix_linear_rgba_in_hsva_space_long(start_color, end_color, t);
+#else ifdef IN_HSL
+    return mix_linear_rgba_in_hsla_space(start_color, end_color, t);
+#else ifdef IN_HSL_LONG
+    return mix_linear_rgba_in_hsla_space_long(start_color, end_color, t);
 #else
     return mix(start_color, end_color, t);
 #endif

crates/bevy_utils/src/debug_info.rs

@@ -79,7 +79,7 @@ impl DebugName {
         }
     }
 
-    /// Get the [`ShortName`] corresping to this debug name
+    /// Get the [`ShortName`] corresponding to this debug name
     ///
     /// The value will be a static string if the `debug` feature is not enabled
     pub fn shortname(&self) -> ShortName {

crates/bevy_utils/src/parallel_queue.rs

@@ -5,7 +5,6 @@ use thread_local::ThreadLocal;
 /// A cohesive set of thread-local values of a given type.
 ///
 /// Mutable references can be fetched if `T: Default` via [`Parallel::scope`].
-#[derive(Default)]
 pub struct Parallel<T: Send> {
     locals: ThreadLocal<RefCell<T>>,
 }
@@ -20,6 +19,25 @@ impl<T: Send> Parallel<T> {
     pub fn clear(&mut self) {
         self.locals.clear();
     }
+
+    /// Retrieves the thread-local value for the current thread and runs `f` on it.
+    ///
+    /// If there is no thread-local value, it will be initialized to the result
+    /// of `create`.
+    pub fn scope_or<R>(&self, create: impl FnOnce() -> T, f: impl FnOnce(&mut T) -> R) -> R {
+        f(&mut self.borrow_local_mut_or(create))
+    }
+
+    /// Mutably borrows the thread-local value.
+    ///
+    /// If there is no thread-local value, it will be initialized to the result
+    /// of `create`.
+    pub fn borrow_local_mut_or(
+        &self,
+        create: impl FnOnce() -> T,
+    ) -> impl DerefMut<Target = T> + '_ {
+        self.locals.get_or(|| RefCell::new(create())).borrow_mut()
+    }
 }
 
 impl<T: Default + Send> Parallel<T> {
@@ -27,15 +45,14 @@ impl<T: Default + Send> Parallel<T> {
     ///
     /// If there is no thread-local value, it will be initialized to its default.
     pub fn scope<R>(&self, f: impl FnOnce(&mut T) -> R) -> R {
-        let mut cell = self.locals.get_or_default().borrow_mut();
+        self.scope_or(Default::default, f)
-        f(cell.deref_mut())
     }
 
     /// Mutably borrows the thread-local value.
     ///
     /// If there is no thread-local value, it will be initialized to its default.
     pub fn borrow_local_mut(&self) -> impl DerefMut<Target = T> + '_ {
-        self.locals.get_or_default().borrow_mut()
+        self.borrow_local_mut_or(Default::default)
     }
 }
 
@@ -72,3 +89,12 @@ impl<T: Send> Parallel<Vec<T>> {
         }
     }
 }
+
+// `Default` is manually implemented to avoid the `T: Default` bound.
+impl<T: Send> Default for Parallel<T> {
+    fn default() -> Self {
+        Self {
+            locals: ThreadLocal::default(),
+        }
+    }
+}

crates/bevy_window/Cargo.toml

@@ -22,12 +22,7 @@ bevy_reflect = [
 ]
 
 ## Adds serialization support through `serde`.
-serialize = [
+serialize = ["serde", "bevy_ecs/serialize", "bevy_input/serialize"]
-  "serde",
-  "smol_str/serde",
-  "bevy_ecs/serialize",
-  "bevy_input/serialize",
-]
 
 # Platform Compatibility
 
@@ -56,9 +51,7 @@ bevy_input = { path = "../bevy_input", version = "0.17.0-dev", default-features
 bevy_math = { path = "../bevy_math", version = "0.17.0-dev", default-features = false }
 bevy_reflect = { path = "../bevy_reflect", version = "0.17.0-dev", default-features = false, features = [
   "glam",
-  "smol_str",
 ], optional = true }
-bevy_utils = { path = "../bevy_utils", version = "0.17.0-dev", default-features = false }
 bevy_platform = { path = "../bevy_platform", version = "0.17.0-dev", default-features = false }
 
 # other
@@ -69,7 +62,6 @@ serde = { version = "1.0", features = [
 raw-window-handle = { version = "0.6", features = [
   "alloc",
 ], default-features = false }
-smol_str = { version = "0.2", default-features = false }
 log = { version = "0.4", default-features = false }
 
 [target.'cfg(target_os = "android")'.dependencies]

crates/bevy_winit/Cargo.toml

@@ -16,7 +16,6 @@ x11 = ["winit/x11"]
 accesskit_unix = ["accesskit_winit/accesskit_unix", "accesskit_winit/async-io"]
 
 serialize = [
-  "serde",
   "bevy_input/serialize",
   "bevy_window/serialize",
   "bevy_platform/serialize",
@@ -38,7 +37,6 @@ bevy_log = { path = "../bevy_log", version = "0.17.0-dev" }
 bevy_math = { path = "../bevy_math", version = "0.17.0-dev" }
 bevy_reflect = { path = "../bevy_reflect", version = "0.17.0-dev" }
 bevy_window = { path = "../bevy_window", version = "0.17.0-dev" }
-bevy_utils = { path = "../bevy_utils", version = "0.17.0-dev" }
 bevy_tasks = { path = "../bevy_tasks", version = "0.17.0-dev" }
 bevy_platform = { path = "../bevy_platform", version = "0.17.0-dev", default-features = false, features = [
   "std",
@@ -57,7 +55,6 @@ accesskit_winit = { version = "0.27", default-features = false, features = [
 approx = { version = "0.5", default-features = false }
 cfg-if = "1.0"
 raw-window-handle = "0.6"
-serde = { version = "1.0", features = ["derive"], optional = true }
 bytemuck = { version = "1.5", optional = true }
 wgpu-types = { version = "25", optional = true }
 accesskit = "0.19"

crates/bevy_winit/src/state.rs

@@ -240,7 +240,7 @@ impl<T: BufferedEvent> ApplicationHandler<T> for WinitAppRunnerState<T> {
     fn user_event(&mut self, _event_loop: &ActiveEventLoop, event: T) {
         self.user_event_received = true;
 
-        self.world_mut().send_event(event);
+        self.world_mut().write_event(event);
         self.redraw_requested = true;
     }
 
@@ -790,91 +790,91 @@ impl<T: BufferedEvent> WinitAppRunnerState<T> {
         if !raw_winit_events.is_empty() {
             world
                 .resource_mut::<Events<RawWinitWindowEvent>>()
-                .send_batch(raw_winit_events);
+                .write_batch(raw_winit_events);
         }
 
         for winit_event in buffered_events.iter() {
             match winit_event.clone() {
                 BevyWindowEvent::AppLifecycle(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::CursorEntered(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::CursorLeft(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::CursorMoved(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::FileDragAndDrop(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::Ime(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::RequestRedraw(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::WindowBackendScaleFactorChanged(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::WindowCloseRequested(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::WindowCreated(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::WindowDestroyed(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::WindowFocused(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::WindowMoved(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::WindowOccluded(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::WindowResized(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::WindowScaleFactorChanged(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::WindowThemeChanged(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::MouseButtonInput(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::MouseMotion(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::MouseWheel(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::PinchGesture(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::RotationGesture(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::DoubleTapGesture(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::PanGesture(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::TouchInput(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::KeyboardInput(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
                 BevyWindowEvent::KeyboardFocusLost(e) => {
-                    world.send_event(e);
+                    world.write_event(e);
                 }
             }
         }
@@ -882,7 +882,7 @@ impl<T: BufferedEvent> WinitAppRunnerState<T> {
         if !buffered_events.is_empty() {
             world
                 .resource_mut::<Events<BevyWindowEvent>>()
-                .send_batch(buffered_events);
+                .write_batch(buffered_events);
         }
     }
 

examples/2d/mesh2d_manual.rs

@@ -6,7 +6,6 @@
 //! [`Material2d`]: bevy::sprite::Material2d
 
 use bevy::{
-    asset::uuid_handle,
     color::palettes::basic::YELLOW,
     core_pipeline::core_2d::{Transparent2d, CORE_2D_DEPTH_FORMAT},
     math::{ops, FloatOrd},
@@ -129,12 +128,16 @@ pub struct ColoredMesh2d;
 pub struct ColoredMesh2dPipeline {
     /// This pipeline wraps the standard [`Mesh2dPipeline`]
     mesh2d_pipeline: Mesh2dPipeline,
+    /// The shader asset handle.
+    shader: Handle<Shader>,
 }
 
 impl FromWorld for ColoredMesh2dPipeline {
     fn from_world(world: &mut World) -> Self {
         Self {
             mesh2d_pipeline: Mesh2dPipeline::from_world(world),
+            // Get the shader from the shader resource we inserted in the plugin.
+            shader: world.resource::<ColoredMesh2dShader>().0.clone(),
         }
     }
 }
@@ -164,14 +167,14 @@ impl SpecializedRenderPipeline for ColoredMesh2dPipeline {
         RenderPipelineDescriptor {
             vertex: VertexState {
                 // Use our custom shader
-                shader: COLORED_MESH2D_SHADER_HANDLE,
+                shader: self.shader.clone(),
                 // Use our custom vertex buffer
                 buffers: vec![vertex_layout],
                 ..default()
             },
             fragment: Some(FragmentState {
                 // Use our custom shader
-                shader: COLORED_MESH2D_SHADER_HANDLE,
+                shader: self.shader.clone(),
                 targets: vec![Some(ColorTargetState {
                     format,
                     blend: Some(BlendState::ALPHA_BLENDING),
@@ -278,9 +281,10 @@ fn fragment(in: FragmentInput) -> @location(0) vec4<f32> {
 /// Plugin that renders [`ColoredMesh2d`]s
 pub struct ColoredMesh2dPlugin;
 
-/// Handle to the custom shader with a unique random ID
+/// A resource holding the shader asset handle for the pipeline to take. There are many ways to get
-pub const COLORED_MESH2D_SHADER_HANDLE: Handle<Shader> =
+/// the shader into the pipeline - this is just one option.
-    uuid_handle!("f48b148f-7373-4638-9900-392b3b3ccc66");
+#[derive(Resource)]
+struct ColoredMesh2dShader(Handle<Shader>);
 
 /// Our custom pipeline needs its own instance storage
 #[derive(Resource, Deref, DerefMut, Default)]
@@ -290,15 +294,16 @@ impl Plugin for ColoredMesh2dPlugin {
     fn build(&self, app: &mut App) {
         // Load our custom shader
         let mut shaders = app.world_mut().resource_mut::<Assets<Shader>>();
-        shaders.insert(
+        // Here, we construct and add the shader asset manually. There are many ways to load this
-            &COLORED_MESH2D_SHADER_HANDLE,
+        // shader, including `embedded_asset`/`load_embedded_asset`.
-            Shader::from_wgsl(COLORED_MESH2D_SHADER, file!()),
+        let shader = shaders.add(Shader::from_wgsl(COLORED_MESH2D_SHADER, file!()));
-        );
+
         app.add_plugins(SyncComponentPlugin::<ColoredMesh2d>::default());
 
         // Register our custom draw function, and add our render systems
         app.get_sub_app_mut(RenderApp)
             .unwrap()
+            .insert_resource(ColoredMesh2dShader(shader))
             .add_render_command::<Transparent2d, DrawColoredMesh2d>()
             .init_resource::<SpecializedRenderPipelines<ColoredMesh2dPipeline>>()
             .init_resource::<RenderColoredMesh2dInstances>()