利用VC++和opengl来绘制立体图形，采用顶点数组和面的法向量来构造。-Using VC++ and opengl to draw the three-dimensional graphics, using vertex arrays and the surface normal vector to construct.

This submission contains a function that computes face normal data for the VertexNormals property of the surface that fixes the lighting (facenorm.m) as well as a workaround function that you can just use in place of surf (surfo.m). Only use th

opengl的一个小例子，关于表面法线的使用，可以实现物体真实感-an opengl code for opengl , about using normal for object surface