Design patterns: elements of reusable object-oriented software
Design patterns: elements of reusable object-oriented software
VRML data sharing in the spin-3D CVE
Proceedings of the seventh international conference on 3D Web technology
Proceedings of the seventh international conference on 3D Web technology
A CORBA based platform as communication support for synchronous Collaborative Virtual Environment
M3W Proceedings of the 2001 international workshop on Multimedia middleware
Adding a fourth dimension to three dimensional virtual spaces
Proceedings of the ninth international conference on 3D Web technology
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In this paper, we present the design and implementation of the VRML97 Distributed Authoring Interface (DAI) introduced in Spin-3D, a distributed Collaborative Virtual Environment (CVE). Our proposal is a powerful interface, very close to the classical VRML97 External Authoring Interface (EAI). The DAI allows the connection of any external application with the Spin-3D CVE platform. With the Spin-3D CVE platform and the DAI, it will be easy to develop collaborative applications. We use the Common Object Request Broker Architecture (CORBA) to support distributed authoring applications. Complex collaborative applications and remote interaction introduce new considerations in the design of the DAI: we enhance the standard VRML97 EAI with new interfaces in order to easily traverse the VRML97 scene graph and limit the network overhead introduced by the remote interaction. Moreover, taking advantage of the CORBA middleware, external applications can be written with any programming language for which the OMG de ned an IDL mapping.