Originally posted by mphanke: Or your Camera is in front of the line!
Well then he would also be in front of the near clip plane, now wouldn’t he?
Anyway, just as a FYI, sroy e-mailed me some of his setup code, and I think his problem is that he is actually going outside the viewing frustum to the top right. He originally had an Orthographic view that had a left & right clip area of 0-500, and he’s now trying to use a perspective view. You’ll note above that his x/y coordinates are 400, 100, which would need to be pushed WAY back in order to be in a typical frustum viewing volume. Hopefully some of the code I mailed him helps explain where the viewing volume is with a perspective view.