01300nas a2200133   4500008004100000245007800041210006900119260001000188300001400198520078300212100002100995700002701016856012301043       2004                        eng d00aDistributed Virtual Reality:Building a Multi - User Layer in EVE Platform0 aDistributed Virtual RealityBuilding a Multi User Layer in EVE Pl  cApril  a 91 - 1113 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. Though other approaches use a VRML
node insertion mechanism, such as VSPLUS, or a substitution mechanism, such as SPIN-3D, our
approach uses a removal mechanism. Main consideration of our multi-user extension is the ease of
transforming single-user virtual worlds into 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. 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, Thrasivoulos  uhttp://telematics.upatras.gr/telematics/publications/distributed-virtual-realitybuilding-multi-user-layer-eve-platform