The Researching Of Real-time Technology In Virtual Reality System

Virtual reality is an immersed interactive environment based on the calculable information. It is the most important feature in the Virtual reality system that participant can use an interactive communication spontaneously between the nature technology and apperception of human beings and the virtual environment made by the computer. Therefore, it is required that system must give the real-time responses for the varied inputs.That establish the real and vivid virtual environment is the core problem of the virtual reality technology. It is very important to make research on developing the virtual environment and showing, and syncretism the arithmetic based on the research result into the varied virtual and emulation environments, for achieving more real and field feeling.In the paper, we introduce the researching status of real-time technology in virtual reality system, and analyze the problem of the real-time in virtual reality. How to establish and show the scene in real-time; And we designed a system for users' interaction and browsing in VRML scenes, By extracting the scene graph, users can choose the parts he interested for transfering, therefore the communication data is reduced, and the interaction between the user and the system is enhanced; And the distributing virtual reality system scene compression, real-time transmitting and displaying and so on. And we also give the solving method for each problem.