从Code Sampler网下载的其公开发布的OpenGL所有老版（1.2-2.0）例程，绝大多数程序适用Windows VC++环境编译，少数Linux专用版也经我在Ubuntu和MAC上验证可用。-A download collection of all published old OpenGL(1.2-2.0) samples the Code Sampler web site. Most of the codes are for Windows VC++ only, some of t