VRML data sharing in the spin-3D CVE

Stéphane Louis Dit Picard , Samuel Degrande (1) , Christophe Gransart (2) , Christophe Chaillou (3) , Grégory Saugis

1 CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189
2 INRETS/LEOST - Laboratoire Electronique, Ondes et Signaux pour les Transports
3 LIFL - Laboratoire d'Informatique Fondamentale de Lille

In this paper, we present the design and implementation of a VRML97 multi-user layer introduced in SPIN-3D, our Distributed Collaborative Virtual Environment. The main consideration of our multi-user extension is the ease of design of multi-user objects from single-user standard VRML97 objects. Any standard VRML97 browser must at least display the single-user content without taking account of the multi-user description. Whereas other approaches use a VRML node insertion mechanism, such as in Living Worlds, our approach uses a substitution mechanism. And beneath our multi-user extension, we use the Common Object Request Broker Architecture to provide a network communication layer for supporting the virtual meetings.

Mots clés: I37 [Computer Graphics]: 3D Graphics and Realism- Virtual Reality; H53 [Information Interfaces and Pre- sentation]: Group and Organization Interfaces-collabora- tive computing; computer-supported cooperative work; C24 [Computer Communication Networks]: Distributed Systems-distributed applications Keywords Virtual Reality Modeling Language (VRML); Collaborative Virtual Environment (CVE); Multi-User Technology; Common Object Request Broker Architecture (CORBA); Multicast Communication Platform

Domaines: Synthèse d'image et réalité virtuelle [cs.GR]; Interface homme-machine [cs.HC]; Génie logiciel [cs.SE]

Stéphane Louis Dit Picard, Samuel Degrande, Christophe Gransart, Christophe Chaillou, Grégory Saugis. VRML data sharing in the spin-3D CVE. Seventh international conference on 3D Web technology, Feb 2002, Tempe, United States. pp.165-172, ⟨10.1145/504502.504529⟩. ⟨hal-02492253⟩