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Fix pixel shader input aliases

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This commit is contained in:
nmzik
2026-09-15 20:46:51 +04:00
parent 629ae1ac05
commit 441367b1a1
5 changed files with 174 additions and 10 deletions
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src/graphics/shader/recompiler/ir/passes/ShaderInfoCollection.cpp
+12
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@@ -226,6 +226,18 @@ void CollectPixelInputs(const Program& program, const ShaderPixelInputInfo* pixe
}
}
}
// Aliases of a vertex output share one SPIR-V interface variable. If any
// alias reads raw vertices, interpolate the other aliases from those too.
for (uint32_t input = 0; input < pixel->input_num; input++) {
for (uint32_t alias = 0; alias < pixel->input_num; alias++) {
if (ShaderPixelParameterMappedLocation(*pixel, input) ==
ShaderPixelParameterMappedLocation(*pixel, alias) &&
ShaderPixelParameterIsFlat(*pixel, input) ==
ShaderPixelParameterIsFlat(*pixel, alias)) {
per_vertex[input] = per_vertex[input] || per_vertex[alias];
}
}
}
for (uint32_t input = 0; input < pixel->input_num; input++) {
AddInput(info, StageInputKind::Parameter, input, 4, fmt::format("in_param_{}", input),
per_vertex[input]);