mirror of
https://github.com/tanema/light_world.lua.git
synced 2024-12-24 20:24:19 +00:00
45be0c56fa
taking out unused variables and redundant code, also took out debug variables. also moved the shaders in to the lib folder for better portablility of the library
13 lines
511 B
GLSL
13 lines
511 B
GLSL
extern float time = 0.0;
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extern vec3 tint = vec3(1.0, 1.0, 1.0);
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extern float fudge = 0.1;
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float rand(vec2 position, float seed) {
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return fract(sin(dot(position.xy,vec2(12.9898, 78.233))) * seed);
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}
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vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords){
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vec4 pixel = Texel(texture, texture_coords);
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float intensity = (pixel.r + pixel.g + pixel.b) / 3.0 + (rand(texture_coords, time) - 0.5) * fudge;
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return vec4(intensity * tint.r, intensity * tint.g, intensity * tint.b, 1.0);
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} |