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Properly apply vertexOffset for builtin in indexed draws

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baldurk
2020-11-05 21:24:18 +00:00
parent e69eacf989
commit 2bfccb1321
1 changed files with 8 additions and 0 deletions
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renderdoc/driver/vulkan/vk_postvs.cpp
+8
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@@ -894,6 +894,14 @@ static void ConvertToMeshOutputCompute(const ShaderReflection &refl, const SPIRV
if(builtin == ShaderBuiltin::VertexIndex)
{
valueID = vertexIndexID;
// although for indexed draws we accounted for vertexOffset when looking up fixed
// function vertex inputs, we still need to apply it to the VertexIndex builtin here.
if(draw->flags & DrawFlags::Indexed)
{
valueID =
ops.add(rdcspv::OpIAdd(uint32ID, editor.MakeId(), valueID,
editor.AddConstantImmediate<uint32_t>(draw->vertexOffset)));
}
}
else if(builtin == ShaderBuiltin::InstanceIndex)
{