0a1431aed5
git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14604 178a84e3-b1eb-0310-8ba1-8eac791a3b58
28 lines
475 B
GLSL
28 lines
475 B
GLSL
uniform sampler2D tex;
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void main()
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{
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vec2 texc = gl_TexCoord[0].xy;
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texc.y = 1.0 - texc.y;
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vec4 col = texture2D(tex, texc);
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//col = col / (1 - col);
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float inBlack = 0.0;
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float inWhite = 137.0;
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float inGamma = 0.65;
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float outWhite = 255.0;
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float outBlack = 0.0;
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col.rgb = (pow(((col.rgb * 255.0) - inBlack) / (inWhite - inBlack),
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vec3(1.0 / inGamma)) * (outWhite - outBlack) + outBlack) / 255.0;
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gl_FragColor = vec4(col.rgb, 1.0);
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}
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