Research of Three Dimension Collision Technique in VRML Interactive Simulation Environment

Paper discussed collision detection techniques theoretically, including polygon and non-polygon expression of collision model, collision model´s bounding box tree optimization, and query of collision. Then introduced VRML´s collision sensing technique and its Collision node´s syntax and application, mainly about speeding collision detection by using a simple model substitute. Finally virtual simulated an auto-door collision sensing application, trigged by Collision grouping node.