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rework the lut system

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Samuliak 2024-10-31 09:25:01 +01:00
parent 90420160f2
commit 158be432fc
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9 changed files with 273 additions and 152 deletions
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src/host_shaders/metal_copy_to_lut_texture.metal
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@ -4,6 +4,6 @@ using namespace metal;
constant ushort lutTextureWidth [[function_constant(0)]];
// The copy is done in a vertex shader instead of a compute kernel, since dispatching compute would require ending the render pass
vertex void vertexCopyToLutTexture(uint vid [[vertex_id]], texture2d<float, access::write> out [[texture(0)]], constant float2* data [[buffer(0)]], constant uint& arrayOffset [[buffer(1)]]) {
vertex void vertexCopyToLutTexture(uint vid [[vertex_id]], texture2d<float, access::write> out [[texture(0)]], device float2* data [[buffer(0)]], constant uint& arrayOffset [[buffer(1)]]) {
out.write(float4(data[vid], 0.0, 0.0), uint2(vid % lutTextureWidth, arrayOffset + vid / lutTextureWidth));
}