24 lines
541 B
GLSL
24 lines
541 B
GLSL
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#version 330 core
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out vec3 fragColor;
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in vec2 texCoord;
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uniform sampler2D hdr_tex;
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uniform sampler2D lum_tex;
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void main()
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{
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vec3 hdrColor = texture(hdr_tex, texCoord).rgb;
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float avgLuminance = texture(lum_tex, texCoord).r;
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// XXX: Maybe we should actually control the EV compensation value itself
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// instead of hardcoding a factor?
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float exposure = 1.0 / (200.0 * avgLuminance);
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hdrColor *= exposure;
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if (dot(hdrColor, vec3(0.333)) <= 0.001)
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fragColor = vec3(0.0);
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else
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fragColor = hdrColor;
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}
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