OpenGL基础图形编程电子教程中的多个程序源码，在VC6.0下均测试通过，非常适合opengl初学者学习，涵盖了基本的内容和操作。-OpenGL graphics programming based electronic tutorial more than the program source code, in all the tests pass under VC6.0, very suitable for beginners OpenGL, covers the basic conten