28 lines
828 B
GLSL
28 lines
828 B
GLSL
/*
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Vignette filter from MariENB
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(C)2012-2019 Marisa Kirisame
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*/
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void main()
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{
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vec2 coord = TexCoord;
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vec4 res = texture(InputTexture,coord);
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vec2 bresl = textureSize(InputTexture,0);
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vec4 vigdata = vec4(0.0);
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if ( vigshape == 0 )
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{
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vec2 uv = ((coord-0.5)*vec2(1.0,bresl.y/bresl.x))*2.0;
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vigdata = vec4(vigcolor,clamp(pow(dot(uv,uv),vigpow)*vigmul+vigbump,0.0,1.0));
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}
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else if ( vigshape == 1 )
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{
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vec2 uv = coord.xy*(1.0-coord.yx)*4.0;
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vigdata = vec4(vigcolor,clamp(pow(max(1.0-(uv.x*uv.y),0.0),vigpow)*vigmul+vigbump,0.0,1.0));
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}
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else vigdata = texture(VignetteTexture,coord);
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vec3 outcol;
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if ( vigmode == 0 ) outcol = vigdata.rgb;
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else if ( vigmode == 1 ) outcol = res.rgb+vigdata.rgb;
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else outcol = res.rgb*vigdata.rgb;
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res.rgb = mix(res.rgb,clamp(outcol,0.0,1.0),vigdata.a);
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FragColor = res;
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}
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