Communication Model for Internet-Oriented 2. 5D Virtual Environments
面向Internet的2．5维虚拟环境通信模型

Computer Supported Collaboration has not only changed the way people work, but also the way people live, the way people entertain and the way people get education. The development of the Internet provides digital en tertainments and distant-learning with a good network environment and in these applications, 2.5D virtual environ ments are widely used due to their good performances and the sense of realism. But the Internet's inherent problem of latency affects the real-time feature of the virtual envirorunents, in particular multi-server ones. Based on traditional multi-server communication models, a new multi-server one is brought out which extended the region managed by each server. The model was adopted in Zhejiang Tourism Expo'2003, and achieved a great success.