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https://github.com/libretro/dolphin
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22 lines
672 B
GLSL
22 lines
672 B
GLSL
// Anaglyph Red-Cyan shader based on Dubois algorithm
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// Constants taken from the paper:
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// "Conversion of a Stereo Pair to Anaglyph with
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// the Least-Squares Projection Method"
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// Eric Dubois, March 2009
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void main()
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{
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float4 c0 = SampleLayer(0);
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float4 c1 = SampleLayer(1);
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float3 lr = float3( 0.437, 0.449, 0.164);
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float3 lg = float3(-0.062,-0.062,-0.024);
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float3 lb = float3(-0.048,-0.050,-0.017);
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float3 rr = float3(-0.011,-0.032,-0.007);
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float3 rg = float3( 0.377, 0.761, 0.009);
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float3 rb = float3(-0.026,-0.093, 1.234);
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SetOutput(float4(dot(lr, c0.rgb) + dot(rr, c1.rgb), dot(lg, c0.rgb) + dot(rg, c1.rgb), dot(lb, c0.rgb) + dot(rb, c1.rgb), c0.a));
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}
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