GLubyte screenImage[screenImageHeight][screenImageWidth][3];

// array is filled with zeros


glDrawPixels(screenImageWidth, screenImageHeight, GL_RGB,GL_UNSIGNED_BYTE, screenImage);
 

GLubyte ***screenImage;

// array is initialized dynamically; 

// because this code is taken out of context, I am omittting

// the initializtion for the sake of clarity;

// I am very confident in the correctness of the initialization;


// array is filled with zeros


glDrawPixels(screenImageWidth, screenImageHeight, GL_RGB,GL_UNSIGNED_BYTE, screenImage);
  

y = screenImageHeight;x = screenImageWidth;GLubyte* screenImage = new GLubyte[x*y*3];screenImage[sImgCY + sImgCX*y + y*x*1] = (GLubyte)intens;    

screenImage[sImgCY][sImgCX][1]     

unsigned int index = 0; //pixelindexGLubyte* pixel = screenImage[ (x + y*sImgCX) * index*3 ];pixel++ = r;pixel++ = g;pixel++ = b;