34 lines
1.2 KiB
HLSL
34 lines
1.2 KiB
HLSL
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#ifndef EDGE_FUSION_COMPARE_PASS_INCLUDED
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#define EDGE_FUSION_COMPARE_PASS_INCLUDED
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TEXTURE2D_X(_CompareTex);
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float4 _CompareParams; // x: cos(angle), y: sin(angle), z: panning or flag, w: line width
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float4 _CompareLineColor; // rgba line color
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float4 FragCompare(EFVaryings i) : SV_Target
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{
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);
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float2 uv = UnityStereoTransformScreenSpaceTex(i.texcoord);
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float2 dd = uv - 0.5.xx;
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float co = dot(_CompareParams.xy, dd);
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float dist = distance(_CompareParams.xy * co, dd);
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float aa = saturate((_CompareParams.w - dist) / abs(_SrcColorTexture_TexelSize.y));
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float sameSide = (_CompareParams.z > -5);
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float2 pixelUV = lerp(uv, float2(uv.x + _CompareParams.z, uv.y), sameSide);
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float2 pixelNiceUV = lerp(uv, float2(uv.x - 0.5 + _CompareParams.z, uv.y), sameSide);
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float4 original = SAMPLE_TEXTURE2D_X(_SrcColorTexture, sampler_PointClamp, pixelUV);
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float4 effected = SAMPLE_TEXTURE2D_X(_CompareTex, sampler_PointClamp, pixelNiceUV);
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float2 cp = float2(_CompareParams.y, -_CompareParams.x);
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float t = dot(dd, cp) > 0;
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float4 outCol = lerp(original, effected, t);
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outCol = lerp(outCol, _CompareLineColor, aa);
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return outCol;
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}
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#endif // EDGE_FUSION_COMPARE_PASS_INCLUDED
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