The Design And Implement Of Virtual Demonstration In Island Computer Room

Virtual Reality technology has been widely applied in many different fields, it has large development potentiality and good prospect. At present, the Virtual Reality System in Internet exists three problems to some extend including model complexity, realistic representation of drawing and real time. A relatively perfect model is : when entering the Virtual Reality System, users can be provided a virtual environment with intensive realistic representative, and users can interact with system.The purpose of this study is to discuss the scene modeling, interaction, walkthrough and information search technology in virtual desktop system. The author studied Virtual Reality technology deeply, analyzed and compared various sorts of modeling technology by reading a great deal of correlated document from home and aboard. Basing on this, the construction scheme of Virtual Reality system, which adopts the technology of VRML and Browser's plug-in, is proposed.First, according to the clues of virtual environment construction flow, the author studies the shape node and group node technology, puts forward ways of orderly proceeding for complicated scene data, adoption the 3DS Max and VRMLPad realization conjecture completes the scene object modeling, node adding, emendation and testing, and proposes ways of quadratic modeling according to the complication and anthenticity of modeling.Secondly, at according to the method foundation of the collision examination of the rectangle boundary up, the article discusses the programming interactive and non-programming interactive technology, finds out ways of object controlling based on VRML sensor and Java Script, relying on these technology, ways of multi interaction modeling are brought forward based on 3D object, VRMLScript , JavaApplet.Thirdly, the seizing methods of 3D objects are researched in this article, model texture bitmapping, LOD technology, code-reusing (DEF/USE), antitype-concealing(PROTO)and favorable scene technologies based on Anchor and Inline for exchanges and formulation of scenes are discussed.Finally,basing on this, the article proposes the construction demonstration of Virtual Reality System, and as to it's actual application carried on analysis.