gluLookAt:
<a href="http://blog.csdn.net/ivan_ljf/article/details/8764737" target="_blank">http://blog.csdn.net/ivan_ljf/article/details/8764737</a>
glOrtho:
http://blog.csdn.net/ivan_ljf/article/details/8726672
本文转自fengyuzaitu 51CTO博客,原文链接:http://blog.51cto.com/fengyuzaitu/1879663,如需转载请自行联系原作者