本文将继续介绍虚拟校园场景，用于对本系列前面的文章进行阐述，说明如何通过EAz实现复杂的授权模型。
This article continues with the virtual campus scenario, used to illustrate the earlier articles in the series, to show how a complex authorization model can be implemented through EAz.
在虚拟校园系统漫游过程中，虚拟场景漫游的动态物体与静态物体之间或者动态物体与动态物体之间的交互基础就是碰撞检测。
During the process of virtual campus walkthrough, collision detection is the vital interaction base between dynamic object and static object or among the dynamic objects.
虚拟校园打破了时空的限制，真实、直观地展现交互式三维校园场景。
Virtual campus can show interactive 3d campus scene factually, there is no time and space restriction.
虚拟校园打破了时空的限制，真实、直观地展现交互式三维校园场景。
Virtual campus can show interactive 3d campus scene factually, there is no time and space restriction.
应用推荐