High immersive system aiming at the collaboration working over the Japan Gigabit Network II (JGNII)

Virtual reality technology performs very important role to design and construct desired buildings houses. In this paper, we introduce an extended virtual Japanese traditional crafting system to collaborate by many users such as end consumers, craftsmen, coordinator and salesperson each other. The high immersive system in consideration of the collaboration support over the next-generation network (JGNII) is proposed. We are building the presentation system which takes sensitivity into consideration to virtual reality environment. It has so far mounted by proposing three systems of an Internet version (Java+VRML and Java+Java3D) and a CAVE version. We think that collaboration support in share space is required of remote users. Multiple CAVE systems in different locations are interconnected to organize a collaborative virtual reality environment over Japan Gigabit Network (JGNII) which is a testbed network in Japan with several ten gigabit/sec. A larger number of traditional Japanese fittings in several local cities are redesigned by 3DCG computes into CAD data and stored in 3D database systems over JGN II. Users can share the virtual space, interactively collaborate and retrieve from the distributed DBs to realize the desired interior space in the house for consumers. We implemented a 3D presentation system by OpenGL and IRIS Performer in CAVE environment on JGN II and built a prototype system. As a result, we could verify the usefulness of the suggested system since it provided not only higher potential on design capability and productive efficiency but also made user´s satisfaction much better on build a new house.