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vkd3d-shader: EvaluateAttributeSnapped offset broken #2196

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DadSchoorse opened this issue Nov 7, 2024 · 0 comments
Open

vkd3d-shader: EvaluateAttributeSnapped offset broken #2196

DadSchoorse opened this issue Nov 7, 2024 · 0 comments

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@DadSchoorse
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This issue is just a reminder that the intrinsic is broken, nothing really uses it in practice.

DXBC/DXIL's offset is some weird fixed point, SPIR-V's (interpolateAtOffset) is a float. vkd3d-shader doesn't convert it, so it effectively always passes a denorm. dxil-spirv gets it right.
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@DadSchoorse