Research Of Virtual Reality Technology Based On VEGA

In recent years, Virtual Reality (VR) technology has been paid extensive attention in computer field. Virtual reality technology is designing a lifelike virtual environment based on the computer technology, which can access interaction between the user and the environment by use of the essential device.In this paper, we mainly discussed the theory of virtual reality technology, for example, the 3D modeling technology of virtual scene and scene optimizing, the rendering of 3D scene, the stereo rendering technology, distributed virtual simulation technology, the interactive technology of virtual reality walkthrough system (such as motion model, collision detection, object picking, input device control) and the virtual environment building technology.Based on the theory of virtual reality technology, we use multigen creator and VEGA to implement the virtual campus walkthrough system. The virtual campus walkthrough system is rendered as stereo mode. The users can virtual walk through in it, and the users can pick the object in virtual campus scene. The implementation of the virtual campus walkthrough system provides references and methods for implementation of other virtual reality system, such as virtual natural scenery system, virtual city simulation system.