Research on Key Technologies for Virtual Environment Oriented Scene Management and Their Implementation

In this paper, several key technologies on virtual environment oriented scene management and their implementation are addressed. Adopting the strategy of managing and rendering scene respectively, a new scene graph that can effectively describe large-scale virtual environment and a Scene graph based Binary Space Partition tree (SBSP) are proposed. Multiple thread technology based portal is used to load universe at real time according to the motion of avatar, and this method can avoid complex multiple thread control and communication of traditional scene schedule means. Based on above techniques, a prototype system named InteVR 1.0 has been developed, which uses OpenGL as graphic interface, to support the scene management and real time navigation of large-scale virtual environment.