The Research Of Virtual Campus Modeling Based On VRML

As one of the newest information technology which has been booming at the end of 20th,Virtual Reality is widely used in many different fields and will have a bright future.Nowadays the Desktop Virtual Reality System is being reserched in many university of China,however,the problems of model complexity,facticity and the interaction with the system existed.Smoothly touring and the interaction with the system will be considered as the standards of a perfect Desktop Virtual Reality System.Virtual 3D Campus System which is considered as one typical application of Desktop Virtual Reality System plays an important role in the fields of campus planning and management and remote network education.The purpose of this thesis is to discuss the modeling technology of Virtual Campus.By reading a great deal of correlated document,analyzing and comparing many different 3D modeling tools,the schem of building the Desktop 3D Virtual Campus Touring System is adopt by the author which is based on the technonlogy of VRML and Java.In the meanwhile,3D Max is also used in order to build a 3D campus to the user who can.tour and interact with the system.Firstly,by analyzing and comparing the 3D modeling tools,the modeling scheme of building the system is fixed on.Secondly,the modeling method is detailedly discussed. Additionally, model textureditmapping,LOD technology, code-reusing (DEF/USE), antitype-concealing(PROTO) and favorable scene technology for exchange and formulation of scenes are also discussed. Thirdly,the thesis discusses the programming interactive and non-programming interactive technology, find out ways of object controlling based on VRML sensor and JavaScript, relying on these technology, ways of multi-interacton modeling are brought forward based on 3D object, JavaScript, JavaApplet.Fourthly,the designing method of the database is detailed discussed. Basing on these,a 3D Virtual CampusTouring System is built, and the browsing effect is also tested. The result implies that every part of the system goes well except some of the enrichment and the complexity of the 3D Scenery, the system testifies that the building of Virtual Campus based on VRML and Java in the scheme is feasible to a certain degree.