这是一个三维变换程序，包括了几何变换和投影变换-This is a three-dimensional transformation process, including the geometric transformation and projection transformation

一个选修课时老师给留的作业,立方体几何变换和消隐程序,技术含量有限-an elective course at the teachers to stay the operation cube geometric transformation and blanking procedures, technical content limited

cg 2.0的buffer调度实例，程序包含了对材质、几何变换、以及高级光照的实现。-This Cg example demonstrates use of Cg 2.0 buffers to manage parameters for materials, transforms, and lights more efficiently.