24 lines
634 B
GLSL
24 lines
634 B
GLSL
uniform sampler2D tex;
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uniform float vignette_weight;
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out vec4 FragColor;
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#stk_include "utils/getCIEXYZ.frag"
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#stk_include "utils/getRGBfromCIEXxy.frag"
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void main()
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{
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vec2 uv = gl_FragCoord.xy / screen;
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vec4 col = texture(tex, uv);
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// Uncharted2 tonemap with Auria's custom coefficients
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vec4 perChannel = (col * (6.9 * col + .5)) / (col * (5.2 * col + 1.7) + 0.06);
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perChannel = pow(perChannel, vec4(2.2));
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vec2 inside = uv - 0.5;
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float vignette = 1. - dot(inside, inside) * vignette_weight;
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vignette = clamp(pow(vignette, 0.8), 0., 1.);
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FragColor = vec4(perChannel.xyz * vignette, col.a);
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}
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