be4cb17a14
Add to suite of MSL tests and references any existing GLSL tests that successfully convert GLSL->SPIRV->MSL and compile as MSL. test_shaders_helper() ignores hidden files that start with '.', to avoid accidentally finding hidden OSX files such as .DS_Store. Use xcrun to compile MSL shaders instead of hard-coded path to Metal compiler. Wrap calls to xcrun in exception handling to ignore if Xcode not installed. For MSL tests, move call to validate_shader_msl() to after call to regression_check() to allow a converted MSL shader to be saved for manual review even if it doesn't successfully compile as MSL.
35 lines
528 B
GLSL
35 lines
528 B
GLSL
#version 310 es
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struct Light
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{
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vec3 Position;
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float Radius;
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vec4 Color;
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};
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layout(std140) uniform UBO
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{
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mat4 uMVP;
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Light lights[4];
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};
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in vec4 aVertex;
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in vec3 aNormal;
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out vec4 vColor;
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void main()
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{
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gl_Position = uMVP * aVertex;
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vColor = vec4(0.0);
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for (int i = 0; i < 4; ++i)
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{
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Light light = lights[i];
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vec3 L = aVertex.xyz - light.Position;
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vColor += dot(aNormal, normalize(L)) * (clamp(1.0 - length(L) / light.Radius, 0.0, 1.0) * lights[i].Color);
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}
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}
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