wehub-resource-sync
37 lines
1.3 KiB
HLSL
37 lines
1.3 KiB
HLSL
// A shader to combine three images into the R,G,B,A channels of a new image.
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// Thomas Helzle - Screendream.de 2022
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cbuffer ParamConstants : register(b0)
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{
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float IsRoughnessConnected;
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float IsMetallicConnected;
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float IsOcclusionConnected;
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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> ImageRoughness : register(t0);
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Texture2D<float4> ImageMetallic : register(t1);
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Texture2D<float4> ImageOcclusion : register(t2);
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Texture2D<float4> RemapCurves : register(t3);
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sampler texSampler : register(s0);
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sampler clampedSampler : register(s1);
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float4 psMain(vsOutput psInput) : SV_TARGET
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{
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//return (IsOcclusionConnected > 0.5) ? float4(1,1,1,1) : float4(0,0,1,1);
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// return ImageOcclusion.Sample(texSampler, psInput.texCoord);
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float roughness = (IsRoughnessConnected > 0.5) ? pow( ImageRoughness.Sample(texSampler, psInput.texCoord).r,1) : 0.5f;
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float metallic = (IsMetallicConnected > 0.5) ? ImageMetallic.Sample(texSampler, psInput.texCoord).g : 0.0f;
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float occlusion = (IsOcclusionConnected > 0.5) ? ImageOcclusion.Sample(texSampler, psInput.texCoord).r : 1.0f;
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roughness = RemapCurves.Sample(clampedSampler, float2(roughness,0.25f)).r;
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return float4(roughness,metallic,occlusion,1);
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}
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