Building Virtual Tour Technology Research

Technology of Real Time Walkthrough System in Virtual Architecture Environment is very promising in the fields of Computer Game Design, Architecture Design, Interior Decoration and Real Estate Development. Compared with the traditional plane pictures and computer animation, it can present both real time and interactive scene.At the very beginning some important theories on Virtual Reality Walkthrough and 3D Graphics are introduced in this paper. On the base of MFC and openGL I design the Walkthrough System in Virtual Architecture Environment. This System provide friendly windows and the selected view& move mode for users. The test proves that the system is efficiently realtime and convenient, the main achievements of this paper include:1. The new method of collide detection is presented in the paper. On the base of dynamic sorted method and space partition technique the paper present a new collide detection methode. By reducing the compution time and improvint the precision of collide detection in Virtual Environmen, this method get a better effect in test.2. the techniques of reading muti-format files modeling of Virtual Architecture and I/O controlling are studied and realized in program. Based on key techniques of walking in virtual scence, the class of cameraK reading model of scene and model data are built. All of these make the program perfect and optimize the syetem.3. On the base of MFC and OpenGL the basic system of the Walkthrough System in Virtual is designed. Through the friendly windows dialog, it supplies users different choices of visual angle walking mode and lighting mode, which could satisfy users' diverse requirement .