Abstract
In many virtual reality applications it is necessary to simulate the interaction among objects. One of the basic requirements is to ensure a non-penetration of bodies. We show a novel algorithm for detecting collisions between camera and terrain. After collisions are detected we propose a fancy collision response. Our collision detection algorithm doesn't need precomputation and reduces memory requirement comparing to the collision detection algorithm using sphere trees. In a virtual global terrain environment application, our collision detection and response algorithm easily runs at real-time rate. Our collision detection algorithm runs faster about dozens of times than the collision detection algorithm using sphere trees.
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