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#version 430 core
in vec2 uv;
out vec3 color;
layout(std430, binding=2) restrict readonly buffer renderedDataRed
{
restrict readonly uint counts_SSBO[];
};
layout(std430, binding=3) restrict readonly buffer brightnessData
{
restrict readonly uint brightness;
};
uniform uint width;
uniform uint height;
uniform float gamma;
uniform float colorScale;
uvec3 getColorAt(vec2 fragCoord)
{
uint xIndex = uint(max(0.0,(fragCoord.x+1.0)*0.5*width));
uint yIndex = uint(max(0.0,abs(fragCoord.y+1.0)*0.5*height));
uint firstIndex = 3*(xIndex + yIndex * width);
uvec3 c1=uvec3(counts_SSBO[firstIndex],counts_SSBO[firstIndex+1],counts_SSBO[firstIndex+2]);
firstIndex = 3*(xIndex +(height-1 - yIndex) * width);
uvec3 c2=uvec3(counts_SSBO[firstIndex],counts_SSBO[firstIndex+1],counts_SSBO[firstIndex+2]);
return c1+c2;
}
void main(){
uvec3 totalCount = getColorAt(uv);
vec3 scaled = pow(min(vec3(1.0),colorScale*0.5*vec3(totalCount)/max(float(brightness),1.0)),vec3(gamma));
color = scaled;
}
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