这是我在网上找了很久的资料，有一些程序运行时报错，说没装directx，安上这个就行-This is what I look for a long time on-line information, there are some program is running Baocuo, that it does not install directx, the placement of the on-line

利用Direc技术先实现一个虚拟场景，在利用安置摄像头，并让其移动来实现场景的变换-The use of Direc achieve a virtual technology first scene change in the use of placement of the camera and let it move to realize the scene