In the 3D collaborative systems, 3D graphics rendering efficiency and transmission rate affect the overall efficiency of the system.In this paper, a distributed architecture is designed to ensure that the 3D graphics rendering and transmission efficiency in the collaborative system.The rendered 3D graphics are in the form of photographs to generate an image transporting on the network, breaking the limitations of traditional 3D graphics rendering on browsers as well as mobile terminals that consume enormous resources limitations.In addition, through the establishment of multi-threaded.TCP communications on the server, it not only ensures the reliability of user interaction, but also avoids the operations ambiguity of multiple users simultaneous operation of 3D graphics.Finally it achieves users real-time interaction with 3D graphics, thereby improves the users` experience.%在三维协同系统中,三维图形的渲染效率和传输速度影响到了系统的整体效率.本文采用分布式架构保证三维图形在协同系统中的渲染和传输效率.把渲染好的三维图形以拍照的形式生成图片在网络中传输,打破了传统三维图形渲染对浏览器的限制以及对移动终端消耗巨大资源的局限.服务器端通过建立多线程TCP通信,既保证了用户交互操作的可靠性,同时又避免了多个用户同时操作三维图形时出现的操作二义性.最终实现用户与三维图形的实时交互,从而提高用户体验.
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