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
20 lines
574 B
GLSL
20 lines
574 B
GLSL
extern Image glowImage;
|
|
|
|
extern float glowTime;
|
|
|
|
vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
|
|
vec3 glowInfo = Texel(glowImage, texture_coords).rgb;
|
|
|
|
if(glowInfo.r != glowInfo.g) {
|
|
float glowStrength = glowTime + glowInfo.b;
|
|
if(mod(glowStrength, 2.0) < 1.0) {
|
|
glowInfo.b = mod(glowStrength, 1.0);
|
|
} else {
|
|
glowInfo.b = 1.0 - mod(glowStrength, 1.0);
|
|
}
|
|
|
|
return Texel(texture, texture_coords) * (glowInfo.g + glowInfo.b * (glowInfo.r - glowInfo.g));
|
|
}
|
|
|
|
return vec4(Texel(texture, texture_coords).rgb * glowInfo.r, 1.0);
|
|
} |