mirror of
https://github.com/gnif/LookingGlass.git
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26 lines
517 B
HLSL
26 lines
517 B
HLSL
Texture2D texTexture;
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SamplerState texSampler;
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struct VS
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{
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float4 pos : SV_Position;
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float2 tex : TEXCOORD;
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};
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float4 RGBtoYUV(float4 rgba)
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{
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float4 yuva;
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yuva.r = rgba.r * 0.2126 + 0.7152 * rgba.g + 0.0722 * rgba.b;
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yuva.g = (rgba.b - yuva.r) / 1.8556;
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yuva.b = (rgba.r - yuva.r) / 1.5748;
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yuva.a = rgba.a;
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yuva.gb += 0.5;
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return yuva;
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}
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float4 main(VS input) : SV_TARGET
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{
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const float4 rgba = texTexture.Sample(texSampler, input.tex);
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const float4 yuva = RGBtoYUV(rgba);
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return yuva;
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} |