基于MFC和OpenGl三维图形开发::介绍OpenGL基本概念，详细讨论了利用OPGEL库，在MFC下进行三维图形的绘制。（有具体实现源码）-MFC and OpenGL-based three-dimensional graphical development:: Introduce the basic concepts of OpenGL to discuss in detail the use of OPGEL library, in the MFC under the three-di