读取3D模型文件的雪地源程序，运行效率比较高，结构清楚，相信一定有帮助。-read 3D model snowmobiles source documents, the relatively high operating efficiency, structure clearly, there must be some help.

读取3D模型文件的雪地源程序，运行效率比较高，结构清楚，相信一定有帮助。-read 3D model snowmobiles source documents, the relatively high operating efficiency, structure clearly, there must be some help.