light_world.lua/lib/shaders/postshaders/contrast.glsl

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2014-03-04 13:52:51 +00:00
vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords)
{
vec3 col = Texel(texture, texture_coords).rgb * 2.0;
col *= col;
return vec4(col, 1.0);
}