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Add more PreviousViewData (#19605)

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Add some more matrices to PreviousViewData for future use with
bevy_solari.
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JMS55 2025-06-15 21:54:26 -07:00 committed by GitHub
parent b7d2cb8547
commit e610badf6c
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GPG Key ID: B5690EEEBB952194
3 changed files with 19 additions and 2 deletions
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5
crates/bevy_core_pipeline/src/prepass/mod.rs
View File

@ -74,11 +74,16 @@ pub struct MotionVectorPrepass;
#[reflect(Component, Default)]
pub struct DeferredPrepass;
/// View matrices from the previous frame.
///
/// Useful for temporal rendering techniques that need access to last frame's camera data.
#[derive(Component, ShaderType, Clone)]
pub struct PreviousViewData {
pub view_from_world: Mat4,
pub clip_from_world: Mat4,
pub clip_from_view: Mat4,
pub world_from_clip: Mat4,
pub view_from_clip: Mat4,
}
#[derive(Resource, Default)]

14
crates/bevy_pbr/src/prepass/mod.rs
View File

@ -216,11 +216,16 @@ pub fn update_previous_view_data(
query: Query<(Entity, &Camera, &GlobalTransform), Or<(With<Camera3d>, With<ShadowView>)>>,
) {
for (entity, camera, camera_transform) in &query {
let view_from_world = camera_transform.compute_matrix().inverse();
let world_from_view = camera_transform.compute_matrix();
let view_from_world = world_from_view.inverse();
let view_from_clip = camera.clip_from_view().inverse();
commands.entity(entity).try_insert(PreviousViewData {
view_from_world,
clip_from_world: camera.clip_from_view() * view_from_world,
clip_from_view: camera.clip_from_view(),
world_from_clip: world_from_view * view_from_clip,
view_from_clip,
});
}
}
@ -698,11 +703,16 @@ pub fn prepare_previous_view_uniforms(
let prev_view_data = match maybe_previous_view_uniforms {
Some(previous_view) => previous_view.clone(),
None => {
let view_from_world = camera.world_from_view.compute_matrix().inverse();
let world_from_view = camera.world_from_view.compute_matrix();
let view_from_world = world_from_view.inverse();
let view_from_clip = camera.clip_from_view.inverse();
PreviousViewData {
view_from_world,
clip_from_world: camera.clip_from_view * view_from_world,
clip_from_view: camera.clip_from_view,
world_from_clip: world_from_view * view_from_clip,
view_from_clip,
}
}
};

2
crates/bevy_pbr/src/prepass/prepass_bindings.wgsl
View File

@ -4,6 +4,8 @@ struct PreviousViewUniforms {
view_from_world: mat4x4<f32>,
clip_from_world: mat4x4<f32>,
clip_from_view: mat4x4<f32>,
world_from_clip: mat4x4<f32>,
view_from_clip: mat4x4<f32>,
}
@group(0) @binding(2) var<uniform> previous_view_uniforms: PreviousViewUniforms;