Building Virtual Roaming System Technology Research

Virtual Reality Walkthrough System is the application of Virtual Reality Technology in Architecture Design, Realty Development, Industrial Design. It has a very beautiful foreground. The system offers both real time 3D scenes and brand-new GUIs of the information communication.This thesis is based on 3D Graphics Technology and includes three parts .The first part describes the purpose, significance of the research work, the development and theory of Virtual Reality Technology and 3D Graphics Technology.The second part analyses the principle, development and foreground of VR Walkthrough System At the same time, it discusses the key technologies which are needed in the design of the system.The third part debates the realization of the scene models and the Walkthrough System, and some methods of the performance optimization.The author developed this system by using Delphi computer programming language. The system is based on PC platform, and it is a demo system of Virtual Reality Walkthrough and an OpenGL application. OpenGL is a widely used 3D graphics industrial standard.Firstly, 3DSVIZ is used in modeling because it is good at scene modeling. Then OpenGL is used in controlling and translating the models.