使用OpenGL画3D图形的简单例子，通过此代码可以很直接的学习画3D图形，用中文注释-3D graphics using OpenGL drawing of a simple example, the passage of this code can be very straightforward to learn painting 3D graphics, use of Chinese Notes

一个简单的虚拟漫游实例。对初学OPenGL非常有帮助-A simple example of virtual roaming. OpenGL on the beginner very helpful