yum-mirror/slang

Making it easier to work with shaders

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

James Helferty (NVIDIA)Enable metal tests (#8446)8086adc90

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1//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK): -mesh -output-using-type -dx12 -profile sm_6_6 -render-features mesh-shader
2//TEST(compute):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK): -mesh -output-using-type -vk -profile sm_6_5 -render-features mesh-shader
3//TEST(compute, metal):COMPARE_COMPUTE_EX(filecheck-buffer=CHECK): -mesh -output-using-type -metal -render-features mesh-shader
4
5// See https://github.com/shader-slang/slang/issues/3401
6
7// CHECK:      0
8// CHECK-NEXT: 1
9// CHECK-NEXT: 4
10// CHECK-NEXT: 9
11
12//TEST_INPUT: ubuffer(data=[0 0 0 0], stride=4):out,name outputBuffer
13
14RWStructuredBuffer<float> outputBuffer;
15
16cbuffer Uniforms
17{
18	float4x4 modelViewProjection;
19}
20
21const static float2 positions[3] = {
22  float2(0.0, -0.5),
23  float2(0.5, 0.5),
24  float2(-0.5, 0.5)
25};
26
27const static float3 colors[3] = {
28  float3(1.0, 1.0, 0.0),
29  float3(0.0, 1.0, 1.0),
30  float3(1.0, 0.0, 1.0)
31};
32struct Vertex
33{
34  float4 pos : SV_Position;
35  float3 color : Color;
36  int index : Index;
37  int value : Value;
38};
39
40const static uint MAX_VERTS = 12;
41const static uint MAX_PRIMS = 4;
42
43[outputtopology("triangle")]
44[shader("mesh")]
45[numthreads(3, 1, 1)]
46void meshMain(
47    in uint tig : SV_GroupIndex,
48    OutputVertices<Vertex, MAX_VERTS> verts,
49    OutputIndices<uint3, MAX_PRIMS> triangles)
50{
51    const uint numVertices = 12;
52    const uint numPrimitives = 4;
53    SetMeshOutputCounts(numVertices, numPrimitives);
54
55    for(uint i = tig; i < numVertices; ++i)
56    {
57        const int tri = i / 3;
58        verts[i] = {float4(positions[i % 3], 0, 1), colors[i % 3], tri, tri*tri};
59    }
60
61    for(uint i = tig; i < numPrimitives; ++i)
62    {
63        triangles[i] = i * 3 + uint3(0,1,2);
64    }
65}
66
67//
68// Fragment Shader
69//
70
71struct Fragment
72{
73    float4 color : SV_Target;
74};
75
76Fragment fragmentMain(Vertex input)
77{
78	outputBuffer[input.index] = input.value;
79
80	Fragment output;
81	output.color = float4(input.color, 1.0);
82	return output;
83}