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fix(renderer): fix RT shadow shader syntax, experimental features, and R32Float sampler compatibility

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- Add 'enable wgpu_ray_query' to RT shadow shader
- Fix RayDesc struct constructor syntax and rayQueryGetCommittedIntersection API
- Enable ExperimentalFeatures in GpuContext for RT
- Change RT shadow texture binding to non-filterable (R32Float)
- Use textureLoad instead of textureSample for RT shadow in lighting pass

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
tolelom
2026-03-25 14:06:20 +09:00
parent b8334ea361
commit cddf9540dd
5 changed files with 41 additions and 32 deletions
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20
examples/deferred_demo/src/main.rs
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@@ -427,13 +427,13 @@ impl ApplicationHandler for DeferredDemoApp {
..Default::default()
});
let rt_shadow_filtering_sampler = gpu.device.create_sampler(&wgpu::SamplerDescriptor {
label: Some("RT Shadow Filtering Sampler"),
let rt_shadow_nearest_sampler = gpu.device.create_sampler(&wgpu::SamplerDescriptor {
label: Some("RT Shadow Nearest Sampler"),
address_mode_u: wgpu::AddressMode::ClampToEdge,
address_mode_v: wgpu::AddressMode::ClampToEdge,
address_mode_w: wgpu::AddressMode::ClampToEdge,
mag_filter: wgpu::FilterMode::Linear,
min_filter: wgpu::FilterMode::Linear,
mag_filter: wgpu::FilterMode::Nearest,
min_filter: wgpu::FilterMode::Nearest,
mipmap_filter: wgpu::MipmapFilterMode::Nearest,
..Default::default()
});
@@ -447,7 +447,7 @@ impl ApplicationHandler for DeferredDemoApp {
&ssgi,
&ssgi_filtering_sampler,
&rt_shadow,
&rt_shadow_filtering_sampler,
&rt_shadow_nearest_sampler,
);
// Lighting pipeline — now renders to HDR format instead of surface
@@ -696,13 +696,13 @@ impl ApplicationHandler for DeferredDemoApp {
mipmap_filter: wgpu::MipmapFilterMode::Nearest,
..Default::default()
});
let rt_shadow_filtering_sampler = state.gpu.device.create_sampler(&wgpu::SamplerDescriptor {
label: Some("RT Shadow Filtering Sampler"),
let rt_shadow_nearest_sampler = state.gpu.device.create_sampler(&wgpu::SamplerDescriptor {
label: Some("RT Shadow Nearest Sampler"),
address_mode_u: wgpu::AddressMode::ClampToEdge,
address_mode_v: wgpu::AddressMode::ClampToEdge,
address_mode_w: wgpu::AddressMode::ClampToEdge,
mag_filter: wgpu::FilterMode::Linear,
min_filter: wgpu::FilterMode::Linear,
mag_filter: wgpu::FilterMode::Nearest,
min_filter: wgpu::FilterMode::Nearest,
mipmap_filter: wgpu::MipmapFilterMode::Nearest,
..Default::default()
});
@@ -715,7 +715,7 @@ impl ApplicationHandler for DeferredDemoApp {
&state.ssgi,
&ssgi_filtering_sampler,
&state.rt_shadow,
&rt_shadow_filtering_sampler,
&rt_shadow_nearest_sampler,
);
// Resize HDR target