Thanks Relic, now it works.

http://www.opengl.org/discussion_boards/ubb/cool.gif

How to maintain the coordinates of the six aditional clipping planes in world coordinates, in a way that permits rotations and translations to be multiplied to the modelview matrix without moving the...

There is a possible problem with Quake II running on Windows 2000. When I try to use it with the default OpenGL option it gives the message "GLimp_EndFrame() - SwapBuffers Failed !".

My system is...