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https://git.sr.ht/~eliasnaur/gio
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Elias Naur
25 lines
553 B
GLSL
25 lines
553 B
GLSL
#version 310 es
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// SPDX-License-Identifier: Unlicense OR MIT
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precision highp float;
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layout(location = 0) out vec4 fragColor;
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layout(binding = 0) uniform sampler2D tex;
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precision mediump float;
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vec3 sRGBtoRGB(vec3 rgb) {
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bvec3 cutoff = greaterThanEqual(rgb, vec3(0.04045));
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vec3 below = rgb/vec3(12.92);
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vec3 above = pow((rgb + vec3(0.055))/vec3(1.055), vec3(2.4));
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return mix(below, above, cutoff);
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}
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void main() {
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vec4 texel = texelFetch(tex, ivec2(gl_FragCoord.xy), 0);
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vec3 rgb = sRGBtoRGB(texel.rgb);
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fragColor = vec4(rgb, texel.a);
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}
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