devoted to game / 3D graphics programming with DirectX / OpenGL using C++. Contains downloadable source code for several small and very specific sample programs that I think will be very helpful to anyone trying to learn both 2D and 3D game programming.
a non-profit public service built on providing help via live interaction with developers and hobbyists experienced with the OpenGL API as well as other areas of development.
The OpenGL graphics system is a software interface to graphics hardware. (The GL stands for Graphics Library.) It allows you to create interactive programs that produce color images of moving three-dimensional objects.
As complements to the core set of OpenGL functions, the OpenGL Utility Library (GLU) and the OpenGL Extension to the X Window System[tm] (GLX) provide useful supporting features.