V-COLLIDE: Accelerated Collision Detection for VRML* Thomas C. Hudson Ming C. Lint Jonathan Cohen Stefan Gottschalk Department of Computer Science University of North Carolina$ http: //www.cs.unc .edtigeom/collide .html Dinesh Manocha Abstract Collision detection is essential for many applications involving simulation, behavior and animation. However, it has been regarded as a computationally demanding task and is often treated as an advanced feature. Most commonly used commercial CAD/CAM packages and high performance graphics libraries, such as SGI Performer, provide limited support for collision detection. As users continue to stretch the capabilities of VRML, collision detection will soon become an indispensable capability for many applications. In this paper, we present a system for accelerated and robust collision detection and describe its interface to VRML browsers. We demonstrate that it is possible to small subset of the collision detection functionality useful to VRML applications. In addition to aiding navigation, collision detection is pivotal to simulating physics in virtual environments or avatar behaviors in cyberspace [8, 13]. Applications currently under investigation, such as collaborative design of CAD/CAM models in distributed virtual environments, require a realistic simulation that couples collision detection and dynamic response. The problem of collision detection has been explored in the
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