基于OpenGL的虚拟校园漫游系统

发布时间：2018-03-19 12:31

本文选题：虚拟现实技术　切入点：三维建模　出处：《西安工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着数字化校园建设的逐渐流行,被作为信息化校园的重要内容一虚拟校园已开始建设,原始的文字加照片的模式已被摒弃掉,利用虚拟现实技术(VRML)、三维全景技术和计算机网络技术建设虚拟校园,力求使现实校园能够进行虚拟漫游,无论用户从哪个角度入手,都可立体了解校园环境,领略校园的文化风情,为学校发展和对外宣传发挥重要的作用,同时也为校园规划、管理提供了最直观的表现形式,为数字大学建设提供一个重要的平台。本文以工业大学未央校区为虚拟环境,研究了基于几何建模的虚拟现实漫游技术。本设计的最终目标是希望实现一个逼真的、立体化的,能给人视觉、听觉、触觉感受的仿真校园场景,以及在此场景基础上的漫游功能。本系统通过运用OpenGL编程、3D max建模以及SQL数据库技术的应用,建立与楼群建筑属性数据库的连接等处理。本文较为全面地介绍了 OpenGL和虚拟现实技术,系统的开发工具及系统运行环境等。通过比较采用LOD算法,图像建模技术,分析并给出了虚拟校园场景模型的建立及优化方案,其中主要研究了地面模型、天空模型、建筑物模型、树木模型的建立方案。通过整体拼接,最后完成了虚拟校园的建设。在已建的校园模型基础上,为提高虚拟校园逼真程度,重点研究了虚拟校园漫游系统的三维交互功能的实现,包括交互漫游功能、自动导航功能、碰撞检测技术等,并给出了具体的流程和实现算法。最后对系统进行了测试与分析改进。此系统可以为用户提供友好、逼真的虚拟环境,使人有身临其境的感觉。本系统的研究与实现有助于校园规划管理,也为有关三维建模,场景漫游,交互方式起试验作用。虚拟校园场景的设计与实现完成后,用户在三维虚拟校园场景中漫游时可以借助诸如鼠标、键盘等外部设备,实现碰撞检测。为学校后续的招生和发展等奠定了一定的基础。
[Abstract]:With the gradual popularity of digital campus construction, virtual campus, which is regarded as an important content of information campus, has been built, and the original model of text and photo has been abandoned. Virtual campus is constructed by using virtual reality technology, 3D panoramic technology and computer network technology. The virtual campus can be virtual roaming, no matter from which point of view, users can understand the campus environment stereoscopically. Learning about campus culture plays an important role in school development and publicity, and it also provides the most intuitive form of expression for campus planning and management. This paper studies the virtual reality roaming technology based on geometric modeling. The ultimate goal of this design is to realize a realistic and three-dimensional design. This system can give people visual, auditory, tactile feeling of the simulation campus scene, as well as the roaming function based on this scene. This system uses OpenGL programming to model 3D max and the application of SQL database technology. This paper introduces OpenGL and virtual reality technology, system development tools and system running environment, etc. By comparing LOD algorithm, image modeling technology, and so on. This paper analyzes and gives the establishment and optimization scheme of virtual campus scene model, which mainly studies the building scheme of ground model, sky model, building model and tree model. Finally, the construction of virtual campus is completed. In order to improve the lifelike degree of virtual campus, the realization of 3D interactive function of virtual campus roaming system is studied, including interactive roaming function and automatic navigation function. Finally, the system is tested and improved. The system can provide a friendly and realistic virtual environment for users. The research and implementation of this system is helpful to the campus planning management, and also plays an experimental role in 3D modeling, scene roaming and interactive mode. After the design and implementation of the virtual campus scene, the design and implementation of the virtual campus scene, When users roam in the 3D virtual campus scene, they can realize collision detection with the help of external devices such as mouse, keyboard and so on, which lays a certain foundation for the subsequent enrollment and development of the school.
【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP391.9

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