数字化校园虚拟漫游系统是数字化校园建设计划的核心平台。本文首先对目前主流的虚拟可视化开发工具作了介绍，并结合当今最流行的游戏引擎UDK（Unreal Development Kit）和三维设计软件3ads Max的虚拟现实技术问题进行了研究，以无锡城市职业技术学院校区为原型，运用三维设计软件3ads Max仿真技术建立了的虚拟校园三维模型。采用游戏引擎UDK（Unreal Development Kit）与SQL server后台数据库连接、实景拍摄与虚拟建筑相结合的方式，设计并实现了实时三维虚拟校园漫游系统的路径自动漫游、自主漫游、楼宇查询和鹰眼鸟瞰等功能。设计并实际运用结果表明，使用三维场景中烘焙贴图的制作运用UDK引擎技术改进的场景优化技术，系统运行效率得以很好的提高，甚至在普通PC机上实时运行时也很流畅和稳定。%The virtual roaming system of digital campus is the core platform of digital campus construction. This essay mainly introduces the mainstream development tool of virtual visualization and studies the problems of virtual reality technology, combined with today's most popular game engine UDK (Unreal Development Kit) and 3ads Max. The essay takes the Wuxi City College of Vocational Technology as the prototype and use the simulation technology of 3Ds Max to build a 3D model of virtual campus. Through the connection of game engine UDK (Unreal Development Kit) with database of SQL server and photographing combined with virtual architecture, it designs and realizes several functions of roaming systems of real time 3D viral campus, such as the function of automatically roaming path, the function of autonomous navigation, the function of building inquiry and the function of hawkeyed bird view. The results of designs and application represent the use of the baking and mapping technology of 3D scene and the improved scene optimization technology of UDK engine can increase the efficiency of the system operation, and even the fluency and stability of PC operation.
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