- Screen to World coordinate: help needed - OpenGL.org Discussion and Help Forums
- GDC2003 OpenGL Game Programming and Stencil Volumes Slides - OpenGL API-based Code Details
- UBB Message - OpenGL.org Discussion and Help Forums
- UBB Message - OpenGL.org Discussion and Help Forums
- OpenGL ARB Meeting Notes - June 8-9, 2004
- OpenGL News Comments - OpenGL developers - tell NVIDIA how they can improve their OpenGL tools

