wehub-resource-sync
58 lines
1.3 KiB
HLSL
58 lines
1.3 KiB
HLSL
cbuffer ParamConstants : register(b0)
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{
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float4 ImageAColor;
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float4 ImageBColor;
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float ColorMode;
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float AlphaMode;
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}
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struct vsOutput
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{
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float4 position : SV_POSITION;
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float2 texCoord : TEXCOORD;
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};
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Texture2D<float4> ImageA : register(t0);
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Texture2D<float4> ImageB : register(t1);
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Texture2D<float4> Mask : register(t2);
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sampler texSampler : register(s0);
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float IsBetween( float value, float low, float high) {
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return (value >= low && value <= high) ? 1:0;
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}
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float4 psMain(vsOutput psInput) : SV_TARGET
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{
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float4 tA = ImageA.Sample(texSampler, psInput.texCoord) * ImageAColor;
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float2 uv = psInput.texCoord;
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int height, width;
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ImageA.GetDimensions(width, height);
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float imageAAspect = (float)width / height;
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ImageB.GetDimensions(width, height);
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float imageBAspect = (float)width / height;
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float2 uvB = imageAAspect < imageBAspect
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? float2(
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(uv.x - 0.5) * imageAAspect / imageBAspect + 0.5,
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uv.y)
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: float2(
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uv.x,
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(uv.y - 0.5) * imageBAspect / imageAAspect + 0.5);
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float4 tB = ImageB.Sample(texSampler, uvB) * ImageBColor;
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float4 mask = Mask.Sample(texSampler, uv);
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tA.a = clamp(tA.a, 0,1);
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tB.a = clamp(tB.a, 0,1);
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return lerp(tA, tB, mask.r);
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} |