b645746c8c
Adds an 8^3 = 512-instance TLAS pick test that shoots one analytically determined ray through a rayQuery=true PlainComputeShader and checks the read-back committed hit (customIndex 484, t 40.75). 512 instances sit in the < 8193 regime that the hardcoded 16384-leaf start used to miss, so the example fails fast if the shim regresses. Verified in Firefox/WebGPU: "[RayQueryPick] PASS". Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
11 lines
474 B
WebGPU Shading Language
11 lines
474 B
WebGPU Shading Language
// RTStress miss (runs in SHADE). Primary miss → sky gradient. Shadow miss
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// → the sun is unoccluded, so add the pending direct contribution.
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fn miss_main(ray: RayDesc, payload: ptr<function, Payload>) {
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if ((*payload).shadowRay == 1u) {
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rtAccumulate((*payload).color);
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return;
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}
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let t = clamp(ray.direction.y * 0.5 + 0.5, 0.0, 1.0);
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rtAccumulate(mix(vec3<f32>(0.50, 0.62, 0.85),
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vec3<f32>(0.90, 0.94, 1.00), t));
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}
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