Comment 94 for bug 726033

@Pavel: If you are saying that the problem is in the way the driver handles the clipping, I agree. The same OpenGL code is working fine on GPUs other than the R300/400/500 series. Yet it may not just be the clipping itself. I think it is a combination of different things: frame buffer object, view port, scissoring, texture modes...
I have no way right now to reproduce the problem in a simple test sample outside of Nux, and I think a simple test case that only involves opengl scissoring may not expose the problem. It is really specific to Unity's Dash right now.