用opengl编写的演示小程序，参考nehe第二节，一个圆锥一个立方体旋转。-a demo project of opengl，referring to lesson 2 of nehe,a cone of a cube rotating.

本人精心挑选的6个最典型的OpenGL精彩的入门培训小程序，适用于Windows,MAC，Ubuntu的C/C++编译环境。-6 typical small OpenGL demo programs which was deliberately picked by me for primary users to get a wonderful training experience. They all can be compiled and run under Windows, MAC and

一个展现太阳系的小程序，行星围绕太阳旋转，卫星围绕行星旋转(A small program that shows the solar system, planets revolve around the sun, and satellites revolve around planets)