一个从3D MAX中到处场景数据的插件程序框架，此框架程序采用递归遍历场景中的节点的思想，为导出插件的开发提供了便利-Everywhere in a scene from the data on 3D MAX plug-ins fr a mework, this fr a mework, the program uses a recursive traversal of the nodes in the scene thought, for the development of export p