18 lines
464 B
Forth
18 lines
464 B
Forth
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// https://knarkowicz.wordpress.com/2016/01/06/aces-filmic-tone-mapping-curve/
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vec3 acesFilm(const vec3 x) {
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const float a = 2.51;
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const float b = 0.03;
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const float c = 2.43;
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const float d = 0.59;
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const float e = 0.14;
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return clamp((x * (a * x + b)) / (x * (c * x + d ) + e), 0.0, 1.0);
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}
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out vec4 color;
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void main(void) {
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vec2 uv = TEXCOORD.st;
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vec4 src = texture2D(iChannel0, uv);
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color = vec4( acesFilm(src.xyz), src.a);
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}
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