Originally posted by c4c
The short answer is that PowerVR does this on the fly and it's what make their architecture cool. Nvidia's architecture does NOT do this on the fly, so by putting in clip planes they make it seem that their card performs better than it does.
Actually all 3d video cards do that to an extent, and they also do it for the Z plane, withc is objects behind a wall etc, just not as efficnet as a static one.
But PowerVR's idea is they can do a better job of clipping in real time, and they actually did.
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