| To create a harmonious human computer interaction eviroment based on multidimensional information space is a important goal of IT's development. And virtual reality technology is one of the major technologies which support the goal. Virtual scene navigation for architecture can be used for demonstratingN validating and evaluating the technologic productino of city planning, architecture designing and interior decorating. They will bring the innovatory development in relative fields.This paper studied the technologic points and implementation of virtual scene navigation , and confirmed the approach to realize the virtual architecture navigating system. Using the blueprint of new campus of DQPI to establish virtual environment, the paper researhed and implement a community navigating system with middle complexity and abundant functions on micro-computer platform.This paper first builded a database of the scene on high performance PC by MultiGenæ¢ software for 3D modeling. Then it accomplished mangement to the database on micro-computer platform. In this paper, major efforts have been focused on discussing the modeling and real-time rendering of a complicated 3D scene. This paper has summarized some frequently found questions on scene modeling. Then, a database hierarchical structure of a scene optimized has been provided. To duplicate the complexity of the scene database, a series of strategies such as redundant data simplification, texture mapping, instance, multiple LOD modles has been applied. And the paper has studied the scene paging technology , put forward corresponding real-time scene paging and controlling algorithms based on model 's complexity.Using a graphic'API-Open GVS and Visual C++6. 0, the paper has realized a general navigating engine which has abundant functions but nothing to do with models, and set forth realization methods to key techniques as input mapping, viewpoint controlling, collision detect and response, terrain following 2D map.
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