毕 业 论 文
竹炭工艺品| 铝合金框架 题 目 | |
专 业 | 地理信息系统 |
学生姓名 | |
扩管机班级学号 | |
指导教师 | |
指导单位 | 地理与生物信息学院 |
| |
日期：2010年3月15日至 2010年6月18日
摘 公交车 诗洁要
虚拟现实，或虚拟实境（Virtual Reality），简称VR技术，也称灵境技术或人工环境，是利用电脑模拟产生一个三度空间的虚拟世界，提供使用者关于视觉、听觉、触觉等感官的模拟，让使用者如同身历其境一般，可以及时、没有限制地观察三度空间内的事物。使用者进行位置移动时，电脑可以立即进行复杂的运算，将精确的3D世界影像传回产生临场感。该技术集成了计算机图形（CG）技术、计算机仿真技术、人工智能、传感技术、显示技术、网络并行处理等技术的最新发展成果，是一种由计算机技术辅助生成的高技术模拟系统。随着现代科技与信息的发展，这项技术逐渐成为人们关注的热点之一。 本文基于南京邮电大学的仙林校区教学区及其主要生活区域，利用CAD、3Ds Max以及VRP软件，建立了其校园虚拟现实平台，完成了校园的可视、漫游等功能的实现。
首先，对于虚拟现实有一个概念性的介绍，然后围绕着南京邮电大学的虚拟演示及三维互动这个课题，讲述了三维建模技术、渲染技术、烘培技术和人机交互技术。介绍了其中所涉及的相关软件，以及其中所涉及到的技术。对于课题的完成过程作了比较详尽的描述，包括其中注意的细节，遇到的困难以及解决方法。 其次，通过南京邮电大学校园场景的模型建立、渲染、烘焙、交互等技术的结合，构造建
立出了一个较为生动的三维校园。人们可以通过方向键盘在运行界面中进行校园漫游，展示了南京邮电大学的校园风貌，让更多的人了解南京邮电大学。这是地理信息系统在虚拟现实技术中的一个典型应用。
最后，对于此项课题进行总结和相关后续发展的论述，例如网络平台的发布，相关技术的现实应用等，结合本专业的知识论述了此项技术在各个领域的应用。
关键词：虚拟现实，3Ds Max，VRP，建模，渲染，烘焙
ABSTRACT
Virtual reality (VR) is a term that applies to computer-simulated environments that can simulate places in the real world as well as in imaginary worlds. Most current virtual reality environments are primarily visual experiences, displayed either on a computer screen or through special stereoscopic displays, but some simulations include additional sensory information, such as sound through speakers or headphones. Some advanced s
ystems now include tactile information, generally known as force feedback, in medical and gaming applications. With the development of knowledge economy, information technology and modernization of national defense, virtual reality technique has become one of the hot issues currently.
电磁炉茶盘
Based on the Nanjing University of Posts and Telecommunications Xianlin campus teaching areas and the main living area, this paper takes use of the software such as CAD, 3Ds Max, VRP to build the campus virtual reality platforms, realize visual campus, roaming and other functions.
First of all, the concept of virtual reality technology is introduced firstly. Nanjing University of Posts and Telecommunications is taken as the test virtual space, the 3D modeling technology, rendering, bake and virtual wandering skills have been discussed respectively. Then the paper introduces which involves software, and in which the technology involved. It completes the process for the subject made a more detailed description, including the attention to details the difficulties encountered and the solutions.
Furthermore, with the adoption of kinds of technology such as modeling, rending, baking, a vivid 3D campus of Nanjing University of Posts and Telecommunications has been set up. People can ramble in the virtual campus atmosphere with the help of the control keyboard or the mouse, and the mien of Nanjing University of Posts and Telecommunications is revealed. This successful case can be looked as a typical application system of virtual reality technology.
