#version 430

//rbc render shader
//Just renders data in ssbo @1 to screen

//Input vertex attributes from vertex shader
in vec2 fragTexCoord;

//output fragment color
out vec4 finalColor;

// Input rbc data
layout(std430, binding = 0)  buffer rbcData
{
    float rbcBuffer[]; //not currently being passed in
};

layout(std430, binding = 1) buffer rbcLayout{
   float rbcBufferDest;
};

 
uniform vec2 resolution;
 
void main(){
   ivec2 coords = ivec2(fragTexCoord*resolution);
   vec4 pixel = vec4(0.0, 0.0, 0.0, 1.0);   
rbcBufferDest = 0.25;

   pixel = vec4(rbcBuffer[4*(coords.x+coords.y*1200)],\
                     rbcBuffer[4*(coords.x+coords.y*1200) + 1],\
                     rbcBuffer[4*(coords.x+coords.y*1200) + 2],\
                     rbcBuffer[4*(coords.x+coords.y*1200) + 3]);
   finalColor = pixel;
   finalColor = vec4(fragTexCoord.x, fragTexCoord.y, 0.0, 1.0);
 }