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.

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。

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In this paper, we briefly introduce some relevant techniques of VR virtual modeling and virtual walkthrough, and we design and implement a virtual campus walkthrough system based on PC.

本文在对虚拟现实、虚拟建模、虚拟漫游等相关技术作了介绍，并设计与实现一个基于PC机的桌面式校园虚拟漫游系统。

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