14 lines
233 B
GLSL
14 lines
233 B
GLSL
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#version 330 core
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out float luminance;
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in vec2 texCoord;
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uniform sampler2D hdr_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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luminance = log2(max(dot(hdrColor, vec3(0.299, 0.587, 0.114)), 0.0001));
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}
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