Modeling And Walkthrough Technology Of Studying And Practiseing In Virtual Campus

Since 1990s virtual reality technique has been one of the hot spots in IT field. Itcreates a living virtual environment by using computer and allows the userscommunicate with it freely. Now VR is widely used in the military, medicine, education, virtual travel, shopping, interactive entertainment etc.Roaming System is a virtual environment in specific ranges which includes vivid vision, hearing and feeling in one. Using some necessary equipments, users can walkthrough in this virtual world or observe virtual objects from any angle and they will feel themselves in the scene. They can also operate the objects inside virtual environment. Virtual walkthrough system is the integrated application of virtual reality skills, which has a promising future.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. The following is the content of this paper: .Chapter 1 brief introduction meaning, method and content of our project.Chapter 2 introduction to the basic concept of virtual reality and characteristic of it etc.Chapter 3 discuss virtual modeling technique, analyze and compare the four virtual modeling technique.Chapter 4 describe a designing and implementation of virtual campus walkthrough system, introduce two technique methods.Chapter 5 discuss virtual walkthrough technique. First of all introduce the concept of walkthrough system, then analyze and compare the three techniques of how to implement virtual walkthrough, describe a implementation of virtual walkthrough in Open Inventor,at last probe into optimizing algorithm, and show " the walkthrough system of chong qing normal university".Chapter 6 conclusion of the result of experiments and looking forward to the next task.