376e66aeed
Restructure Sponza for the wavefront model: raygen emits the primary ray; closesthit (in SHADE) gathers albedo/normal, accumulates ambient, and emits a shadow ray carrying the pending direct term; miss adds the sky (primary) or the direct term (shadow miss). resolve.wgsl applies the same Reinhard+gamma the megakernel raygen did inline. User bindings moved to group 3 (groups 0..2 reserved). RTPass maxDepth=2. Renders the atrium correctly through the wavefront pipeline (textures, two-sided shading, sun+ambient, shadows, tonemap). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
7 lines
351 B
WebGPU Shading Language
7 lines
351 B
WebGPU Shading Language
// Sponza RESOLVE-stage tonemap: Reinhard + gamma 2.2 over the linear
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// accumulator — matches the tonemap the megakernel raygen applied inline.
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fn resolve_main(coord: vec2<u32>, hdr: vec4<f32>) -> vec4<f32> {
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let mapped = hdr.rgb / (hdr.rgb + vec3<f32>(1.0));
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let g = pow(mapped, vec3<f32>(1.0 / 2.2));
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return vec4<f32>(g, 1.0);
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}
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