I’m trying to use them with glCopyTexImage2D to copy for my 800x600 frame buffer to a 256x256 texture. I was under the impression that pack and unpack worked for reading and writing to the frame buffer or is this just a bad way to copy the frame buffer. I’m trying to avoid rendering the scene twice, because my biggest bottleneck is the volume of vertex data being sent to the video card.
Thanks…
John.