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// Test that a mesh shader generates PerPrimitiveNV decoration for OutputPrimitives
//TEST:SIMPLE(filecheck=CHECK):-target spirv -entry main -stage mesh -emit-spirv-directly -skip-spirv-validation
// CHECK: OpDecorate %gl_PrimitiveID BuiltIn PrimitiveId
// CHECK: OpDecorate %gl_PrimitiveID PerPrimitive{{NV|EXT}}
// CHECK: OpDecorate {{.*}} BuiltIn CullPrimitiveEXT
// CHECK: OpDecorate {{.*}} PerPrimitive{{NV|EXT}}
const static let color: float3[] = {
float3(1.0, 0.0, 0.0),
float3(0.0, 1.0, 0.0),
float3(0.0, 0.0, 1.0),
};
const static let position: float3[] = {
float3( 0.5, 0.5, 0.0),
float3( 0.0, -0.5, 0.0),
float3(-0.5, 0.5, 0.0),
};
struct SVertexOutput {
float4 Position: SV_Position;
float3 Color;
};
struct SPrimitiveOutput {
uint PrimitiveId: SV_PrimitiveID;
bool cull : SV_CullPrimitive;
};
[shader("mesh")]
[numthreads(1, 1, 1)]
[outputtopology("triangle")]
func main(
OutputVertices<SVertexOutput, 3> outputVertices,
OutputPrimitives<SPrimitiveOutput, 1> outputPrimitives,
OutputIndices<uint3, 1> outputIndices,
) -> void {
SetMeshOutputCounts(3, 1);
outputVertices[0] = { float4(position[0], 1.0), color[0] };
outputVertices[1] = { float4(position[1], 1.0), color[1] };
outputVertices[2] = { float4(position[2], 1.0), color[2] };
outputIndices[0] = uint3(0, 1, 2);
outputPrimitives[0] = { 0, false };
}
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