Distributed Virtual Reality Systems

Joslin, C. and Molet, T. and Magnenat-Thalmann, N.

Abstract: In this paper we present our Networked Virtual Environment (NVE) System, called WVLNET (Windows Virtual Life Network), which has been developed on the Windows NT Operating System (OS). This paper emphasizes the Real-Time aspect of this NVE system, the advanced interactivity that the system provides and its ability to transfer data across the Internet so that geographically distant users can collaborate with each other. Techniques for communication, scene management, facial and body animation, and general user interaction modules are detailed in this paper. The use of VRML97 and MPEG4 SHNC is overviewed to stress the compatibility of the system with other similar Virtual Reality systems. The software provides realistic virtual actors as well as sets of applicable high-level actions in real-time. Related issues on obtaining actor models and animating them in realtime are presented. We also introduce a case study to show an example of how the system can be used.

  booktitle = {Speed Up Workshop, Bern},
  author = {Joslin, C. and Molet, T. and Magnenat-Thalmann, N.},
  title = {Distributed Virtual Reality Systems},
  year = {2001},
  topic = {Networked Collaborative Virtual Environments}