Crafter.Graphics/examples/VulkanTriangle/miss.wgsl

// Wavefront miss: runs in SHADE for rays that hit nothing. Accumulate the
// white background directly.

fn miss_main(ray: RayDesc, payload: ptr<function, Payload>) {
    rtAccumulate(vec3<f32>(1.0, 1.0, 1.0));
}
WebGPU RT: wavefront tracer core (GENERATE/PREP/TRACE/SHADE/RESOLVE) Replace the megakernel @compute entry with five wavefront kernels sharing one module, connected by GPU ray/hit/payload buffers and a GPU-driven indirect bounce loop: GENERATE -> (PREP -> TRACE -> SHADE) x maxDepth -> RESOLVE - TRACE contains zero user code (pure _rtwTraverseTlas/Blas, opaque-only). - PREP publishes dispatchWorkgroupsIndirect args from the live ray count; the indirect-args buffer lives in its own bind group so it is never bound read-write in the same dispatch that consumes it as INDIRECT. - New emit/accumulate API: rtEmitPrimaryRay / rtEmitRay / rtAccumulate, plus an optional user Resolve stage (tonemap hook; identity by default). - Per-pass WfParams via a dynamic-offset uniform ring (curIsA/bounce vary between passes within one submit). - Payload-typed wfPayload binding emitted in the codegen region after the user's struct Payload; payload travels with each ray (2WH slots). - Request maxBufferSize / maxStorageBufferBindingSize / maxComputeWorkgroups PerDimension so the W*H-sized work buffers fit past the 128MB baseline. VulkanTriangle ported to the new API and renders bit-identical to the megakernel baseline at maxDepth=1. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> 2026-05-31 16:24:41 +00:00			`// Wavefront miss: runs in SHADE for rays that hit nothing. Accumulate the`
			`// white background directly.`
webgpu triangle 2026-05-18 18:43:30 +02:00
			`fn miss_main(ray: RayDesc, payload: ptr<function, Payload>) {`
WebGPU RT: wavefront tracer core (GENERATE/PREP/TRACE/SHADE/RESOLVE) Replace the megakernel @compute entry with five wavefront kernels sharing one module, connected by GPU ray/hit/payload buffers and a GPU-driven indirect bounce loop: GENERATE -> (PREP -> TRACE -> SHADE) x maxDepth -> RESOLVE - TRACE contains zero user code (pure _rtwTraverseTlas/Blas, opaque-only). - PREP publishes dispatchWorkgroupsIndirect args from the live ray count; the indirect-args buffer lives in its own bind group so it is never bound read-write in the same dispatch that consumes it as INDIRECT. - New emit/accumulate API: rtEmitPrimaryRay / rtEmitRay / rtAccumulate, plus an optional user Resolve stage (tonemap hook; identity by default). - Per-pass WfParams via a dynamic-offset uniform ring (curIsA/bounce vary between passes within one submit). - Payload-typed wfPayload binding emitted in the codegen region after the user's struct Payload; payload travels with each ray (2WH slots). - Request maxBufferSize / maxStorageBufferBindingSize / maxComputeWorkgroups PerDimension so the W*H-sized work buffers fit past the 128MB baseline. VulkanTriangle ported to the new API and renders bit-identical to the megakernel baseline at maxDepth=1. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> 2026-05-31 16:24:41 +00:00			`rtAccumulate(vec3<f32>(1.0, 1.0, 1.0));`
webgpu triangle 2026-05-18 18:43:30 +02:00			`}`