《3D游戏编程》随书光盘 12章: 设计阴影的多种技巧, 有详细源代码， 包括平面阴影， 投影阴影及阴影体技巧。-" 3D Game Programming" book with CD-ROM Chapter 12: Design a shadow of a wide range of skills, there is a detailed source code, including the plane the shadow of the shadow and the sha