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VSPLUS: A high-level multi-user extension library for interactive VRML worlds

In this paper, we introduce the design and implementation of VSPLUS, a high-level multi-user extension library to enable people to simultaneously manipulate interactive VRML worlds over networks. The key consideration of the VSPLUS design is the ease of creations of multi-user worlds from single-user standard VRML worlds without extensive programming efforts. The library is implemented on the Community Place system and evaluated with practical contents.