yum-mirror/slang

Making it easier to work with shaders

git clone https://git.yummers.dev/yum-mirror/slang

Jay KwakUpdate SPIRV submodules and fix tests (#6222)cbcb97a64

master
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1.3 KiB48 linesraw
1// Test that a mesh shader generates PerPrimitiveNV decoration for OutputPrimitives
2//TEST:SIMPLE(filecheck=CHECK):-target spirv -entry main -stage mesh -emit-spirv-directly -skip-spirv-validation
3
4// CHECK: OpDecorate %gl_PrimitiveID BuiltIn PrimitiveId
5// CHECK: OpDecorate %gl_PrimitiveID PerPrimitive{{NV|EXT}}
6
7// CHECK: OpDecorate {{.*}} BuiltIn CullPrimitiveEXT
8// CHECK: OpDecorate {{.*}} PerPrimitive{{NV|EXT}}
9
10const static let color: float3[] = {
11  float3(1.0, 0.0, 0.0),
12  float3(0.0, 1.0, 0.0),
13  float3(0.0, 0.0, 1.0),
14};
15
16const static let position: float3[] = {
17  float3( 0.5,  0.5, 0.0),
18  float3( 0.0, -0.5, 0.0),
19  float3(-0.5,  0.5, 0.0),
20};
21
22struct SVertexOutput {
23  float4 Position: SV_Position;
24  float3 Color;
25};
26
27struct SPrimitiveOutput {
28  uint PrimitiveId: SV_PrimitiveID;
29  bool cull : SV_CullPrimitive;
30};
31
32[shader("mesh")]
33[numthreads(1, 1, 1)]
34[outputtopology("triangle")]
35func main(
36  OutputVertices<SVertexOutput, 3> outputVertices,
37  OutputPrimitives<SPrimitiveOutput, 1> outputPrimitives,
38  OutputIndices<uint3, 1> outputIndices,
39) -> void {
40  SetMeshOutputCounts(3, 1);
41  outputVertices[0] = { float4(position[0], 1.0), color[0] };
42  outputVertices[1] = { float4(position[1], 1.0), color[1] };
43  outputVertices[2] = { float4(position[2], 1.0), color[2] };
44  outputIndices[0] = uint3(0, 1, 2);
45
46  outputPrimitives[0] = { 0, false };
47}
48