Learn More
This paper explores the issues involved in designing and developing network softrarare architectures for large-scale virtual environments. We present our ideas in the context of NPSNET-IV, the first 3-D virtual environment that incorDorates both the IEEE 1278 distributed interactive simulation (DlS) application protocol and the lP multicast network protocol(More)
During the past decades, the virtual reality community has based its development on a synthesis of earlier work in interactive 3D graphics, user interfaces, and visual simulation. Currently, the VR field is transitioning into work influenced by video games. Because much of the research and development being conducted in the games community parallels the VR(More)
ultiuser networked virtual worlds have M generated intense interest in the graphics community. High-bandwidth wide area communications, the success of World Wide Web applications such as the National Center for Supercomputing Application’s Mosaic browser, and government funding of Distributed Interactive Simulation (DIS) have fueled the desire to expand(More)
We describe a network software architecture for solving the problem of scaling very large distributed simulations. The fundamental idea is to logically partition virtual environments by associating spatial, temporal, and functionally related entity classes with network multicast groups. We exploit the actual characteristics of the real-world large-scale(More)
3D visual simulation systems must present a world, including terrain, cultural features and 3D icons, in real-time at a level of detail which supports the use for which the system is intended. A “simple” world lends itself to blasting all the polygons through the workstation’s existing graphics pipeline. However, a “simple” world is not very realistic(More)
The development of multi-user networked virtual worlds has become a major area of interest to the graphics community. The realization of high bandwidth wide area communications. the success of World Wide Web applications such as the National Center for Supercomputing Application’s Mosaic browser, and government funding of Distributed Interactive Simulation(More)
Bamboo is a portable system supporting real-time, networked, virtual environments. Unlike previous efforts, this design focuses on the ability for the system to dynamically configure itself without explicit user interaction, allowing applications to take on new functionality after execution. In particular, this framework facilitates the discovery of virtual(More)
The capabilities of the Virtual Reality Modeling Language (VRML) permit building large-scale virtual environments (LSVEs) using the Internet and the World Wide Web. However the underlying network support provided by the hypertext transfer protocol (http) is insufficient for LSVEs. Additional capabilities for lightweight peer-to-peer communications and(More)