yum-mirror/slang

Making it easier to work with shaders

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

Lujin WangFix DebugCompilationUnit to reference main shader file instead of header files (#7957)ed9f42361

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1//TEST:SIMPLE(filecheck=CHECK):-target spirv -entry main -stage fragment -g2 -emit-spirv-directly
2
3#include "shader-utils.slang"
4
5struct VertexOutput
6{
7    float4 position : SV_Position;
8    float2 texCoord : TEXCOORD0;
9}
10
11[shader("fragment")]
12float4 main(VertexOutput input) : SV_Target
13{
14    // Create a simple gradient pattern based on texture coordinates
15    float2 uv = input.texCoord;
16
17    // Call function from the included header file
18    float distanceFromCenter = calculateDistanceFromCenter(uv);
19
20    // Use another function from the header for a radial fade effect
21    float radialFade = createRadialFade(uv, 0.7);
22
23    // Create color pattern with both distance effects
24    float4 color = float4(
25        uv.x * (1.0 - distanceFromCenter * 0.5),  // Red with subtle distance fade
26        uv.y * radialFade,                        // Green with smooth radial fade
27        uv.x * uv.y,                              // Blue as product of coordinates
28        1.0                                       // Full opacity
29    );
30
31    return color;
32}
33
34// Verify that DebugCompilationUnit references this main shader file
35// CHECK: [[MAIN_FILE:%[0-9]+]] = OpString "{{.*}}debug-compilation-unit-main-file.slang"
36// CHECK: [[SOURCE_ID:%[0-9]+]] = OpExtInst %void %{{[0-9]+}} DebugSource [[MAIN_FILE]] %{{[0-9]+}}
37// CHECK: OpExtInst %void %{{[0-9]+}} DebugCompilationUnit %uint_{{[0-9]+}} %uint_{{[0-9]+}} [[SOURCE_ID]] %uint_{{[0-9]+}}