Bloom

vec3 blurWhitening(){
	vec3 outc = vec3(0);
	for(float g = 0; g < mPI2; g+=0.6){ 
		for(float g2 = 0; g2 < 14.0; g2+=2.0){ 
			vec2 gauss = vec2(sin(g)*ratio, cos(g)) * (g2 * 0.001);
			vec3 color = fetchColor(UV + gauss);
			float luminance = length(color); // luminance from 1.4 to 1.7320
			if(luminance > 1.0){
				luminance = (luminance - 1.0) / 0.320;
				outc += 0.042857142 * luminance;
			}
		}
	}
	return outc;
}