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Wgpu 0.20 landed subgroup operations, but is missing quad operations.
E.g. Fidelity FX's single pass downscaling uses them:
FfxFloat32x4 SpdReduceQuad(FfxFloat32x4 v) { FfxFloat32x4 v0 = v; FfxFloat32x4 v1 = subgroupQuadSwapHorizontal(v); FfxFloat32x4 v2 = subgroupQuadSwapVertical(v); FfxFloat32x4 v3 = subgroupQuadSwapDiagonal(v); return SpdReduce4(v0, v1, v2, v3); }
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Wgpu 0.20 landed subgroup operations, but is missing quad operations.
E.g. Fidelity FX's single pass downscaling uses them:
The text was updated successfully, but these errors were encountered: