src/shaders/addHeightShader.comp

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#version 430

layout(local_size_x = 16, local_size_y = 16) in; 

layout (std430,binding = 4) readonly buffer height0 
{
    float u0[];
    
};

layout (std430,binding = 10) readonly buffer Terrain 
{   
    float terr[];
    
};

layout (std430,binding = 11) writeonly buffer Model 
{   
    float outHeight[];
    
};



uniform ivec2 size; 
uniform float dt; 

void main(){
    //determine where to sample
    ivec2 storePos = ivec2(gl_GlobalInvocationID.xy);
    int i = storePos.x;
    int j = storePos.y;
    int offset = i+j*size.x;

    if(i < size.x && j < size.y) {
        
        outHeight[offset] = u0[offset] +terr[offset];
    }
}