free implementation of the OpenGL Character Renderer
3D Software Renderer in 700 Lines
non-trivial OpenGL project for research purpose
Short C++/Java/C#/Python benchmark
Perl bindings to the Modern OpenGL API
Utility application to obtain data about your OpenGL implementation.
https://github.com/horde3d/Horde3D
Multi-Language Wrapper Collection for the Irrlicht Engine
Free vector,quaternion,matrix math library
Megalui: 2D/3D OpenGL & C/C++ Library for Scientific Visualizations
Displays your photos on the walls of a maze
A 3D rendering / entity engine
Quick project: Phong, Gouraud, Flat shading program (wire-frame also)