Building and Supporting a Large-Scale Collaborative Virtual Environment

The COVEN project's London Travel application demonstrates several techniques that enable large-scale virtual environments. By large-scale we mean both geometrically complex environments and support for many simultaneous participants in the world. The demonstrator is concerned with travel to a virtual model of London, where participants can plan routes, investigate tourist information and meet with fellow travellers or guides. In this paper we discuss how the Distributed Interactive Virtual Environment (DIVE) platform has been extended to meet the application requirements. In particular we shall discuss the technical problems involved in maintaining and rendering a scene database many times larger than one might usually encounter.

[1]  Emmanuel Frécon,et al.  Semantic Behaviours in Collaborative Virtual Environments , 1999, EGVE.

[2]  Jon Louis Bentley,et al.  Multidimensional binary search trees used for associative searching , 1975, CACM.

[3]  Carlo H. Séquin,et al.  Management of large amounts of data in interactive building walkthroughs , 1992, I3D '92.

[4]  Thomas A. Funkhouser,et al.  Database Management for Interactive Display of Large Architectural Models , 1996, Graphics Interface.

[5]  Seth J. Teller,et al.  Real-time occlusion culling for models with large occluders , 1997, SI3D.

[6]  Carl Machover,et al.  Virtual reality , 1994, IEEE Computer Graphics and Applications.

[7]  Vassilis Bourdakis The Future of VRML on Large Urban Models , 2007 .

[8]  Daniel G. Aliaga,et al.  MMR: an interactive massive model rendering system using geometric and image-based acceleration , 1999, SI3D.

[9]  Gareth Smith,et al.  Using subjective views to enhance 3D applications , 1997, VRST '97.

[10]  Steve Benford,et al.  The COVEN Project: Exploring Applicative, Technical, and Usage Dimensions of Collaborative Virtual Environments , 1999, Presence: Teleoperators & Virtual Environments.

[11]  Emmanuel Frécon,et al.  Building distributed virtual environments to support collaborative work , 1998, VRST '98.

[12]  Mel Slater,et al.  A market model for level of detail control , 1999, VRST '99.

[13]  Emmanuel Frécon,et al.  DIVE: a scaleable network architecture for distributed virtual environments , 1998, Distributed Syst. Eng..