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https://github.com/RetroDECK/Duckstation.git
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81 lines
2.6 KiB
HLSL
81 lines
2.6 KiB
HLSL
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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// ReShade effect file
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// visit facebook.com/MartyMcModding for news/updates
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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// Marty's LUT shader 1.0 for ReShade 3.0
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// Copyright © 2008-2016 Marty McFly
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//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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#ifndef fLUT_TextureName
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#define fLUT_TextureName "lut.png"
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#endif
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#ifndef fLUT_TileSizeXY
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#define fLUT_TileSizeXY 32
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#endif
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#ifndef fLUT_TileAmount
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#define fLUT_TileAmount 32
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#endif
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//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//
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//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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#include "ReShadeUI.fxh"
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uniform float fLUT_AmountChroma < __UNIFORM_SLIDER_FLOAT1
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ui_min = 0.00; ui_max = 1.00;
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ui_label = "LUT chroma amount";
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ui_tooltip = "Intensity of color/chroma change of the LUT.";
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> = 1.00;
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uniform float fLUT_AmountLuma < __UNIFORM_SLIDER_FLOAT1
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ui_min = 0.00; ui_max = 1.00;
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ui_label = "LUT luma amount";
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ui_tooltip = "Intensity of luma change of the LUT.";
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> = 1.00;
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//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//
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//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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#include "ReShade.fxh"
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texture texLUT < source = fLUT_TextureName; > { Width = fLUT_TileSizeXY*fLUT_TileAmount; Height = fLUT_TileSizeXY; Format = RGBA8; };
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sampler SamplerLUT { Texture = texLUT; };
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//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//
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//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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void PS_LUT_Apply(float4 vpos : SV_Position, float2 texcoord : TEXCOORD, out float4 res : SV_Target0)
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{
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float4 color = tex2D(ReShade::BackBuffer, texcoord.xy);
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float2 texelsize = 1.0 / fLUT_TileSizeXY;
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texelsize.x /= fLUT_TileAmount;
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float3 lutcoord = float3((color.xy*fLUT_TileSizeXY-color.xy+0.5)*texelsize.xy,color.z*fLUT_TileSizeXY-color.z);
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float lerpfact = frac(lutcoord.z);
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lutcoord.x += (lutcoord.z-lerpfact)*texelsize.y;
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float3 lutcolor = lerp(tex2D(SamplerLUT, lutcoord.xy).xyz, tex2D(SamplerLUT, float2(lutcoord.x+texelsize.y,lutcoord.y)).xyz,lerpfact);
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color.xyz = lerp(normalize(color.xyz), normalize(lutcolor.xyz), fLUT_AmountChroma) *
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lerp(length(color.xyz), length(lutcolor.xyz), fLUT_AmountLuma);
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res.xyz = color.xyz;
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res.w = 1.0;
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}
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//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//
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//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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technique LUT
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{
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pass LUT_Apply
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{
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VertexShader = PostProcessVS;
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PixelShader = PS_LUT_Apply;
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}
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}
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