01216nas a2200157   4500008004100000245007300041210006900114260001600183300001500199520062400214100002100838700002700859700001800886700001700904856013700921       2003                        eng d00aMulti – User Layer in the EVE Distributed Virtual Reality Platform0 aMulti User Layer in the EVE Distributed Virtual Reality Platform  c19 - 22 May  a 602 - 6073 aIn this paper, we present the design and
implementation of a VRML97 multi-user layer, which is
introduced in the EVE distributed virtual reality platform.
Main consideration of our multi-user extension is the ease
of transforming single-user virtual worlds to multi-user
virtual worlds, as well as the conformity with any standard
VRML97 browser. Furthermore, we present the EVE' s
communication platform, which can be used in order to
support Collaborative Virtual Environments (CVEs). Main
issues regarding the effective network communication as
well as the initialization of the 3D scene are discussed in
this paper.1 aBouras, Christos1 aTsiatsos, Thrasivoulos1 aPsaltoulis, D1 aPsaroudis, C  uhttp://telematics.upatras.gr/telematics/publications/multi-%E2%80%93-user-layer-eve-distributed-virtual-reality-platform?language=el01209nas a2200157   4500008004100000245007000041210006700111260001900178300001500197520062400212100002100836700002700857700001800884700001700902856013200919       2002                        eng d00aAn Educational Community Using Collaborative Virtual Environments0 aEducational Community Using Collaborative Virtual Environments  c17 - 19 August  a 180 - 1913 aThe use of Collaborative Virtual Environments in e-learning is one of
the most promising uses of the virtual reality technology. While a lot of
research has been done in the area of collaborative virtual environments
corresponding to the sharing of events, very little research has been done on
specific services and functionality. However both the requirements and the kind
of the offered services affect significantly the design of a system. In this paper
we present an Educational Community to support e-learning services using
Collaborative Virtual Environments from both the technical and functional
point of view.1 aBouras, Christos1 aTsiatsos, Thrasivoulos1 aPsaltoulis, D1 aPsaroudis, C  uhttp://telematics.upatras.gr/telematics/publications/educational-community-using-collaborative-virtual-environments?language=el01380nas a2200157   4500008004100000245006000041210005800101260001900159300001500178520082700193100002101020700002701041700001801068700001701086856011901103       2001                        eng d00aA Platform for Sharing Educational Virtual Environments0 aPlatform for Sharing Educational Virtual Environments  c9 - 12 October  a 659 - 6663 aIn recent years, a lot of work has been done on multi-user virtual environments. This
work led to platforms that aim to support 3D virtual communities. However, little research has
been done on specific services and functionality, which affect significantly the design of a system.
The growing need for communication, visualisation and organisation technologies in the field of
e-learning environments, has led to the application of virtual reality and the use of multi-user
real-time communication platforms to support these needs. In this paper we present the design
and implementation of a platform, suitable for educational virtual environments. Apart from the
platform itself, we present the technological choices, a new method for sharing virtual
environments and a new protocol for educational virtual environments.1 aBouras, Christos1 aTsiatsos, Thrasivoulos1 aPsaltoulis, D1 aPsaroudis, C  uhttp://telematics.upatras.gr/telematics/publications/platform-sharing-educational-virtual-environments?language=el