导弹飞行视景仿真中的碰撞检测算法

针对导弹飞行视景仿真中碰撞检测实时性与精确性的不足,提出了一种优化的混合包围盒碰撞检测算法.该算法在包围盒树的上层使用Sphere,下层使用OBB;将该算法在导弹飞行视景仿真系统中实现后,分别与相交矢量碰撞检测算法、OBB包围盒算法进行对比试验和分析.结果表明,这种混合包围盒算法能够有效地提高导弹飞行视景仿真中碰撞检测的实时性与精确性.

Collision detection algorithms of Missile Flight Scene Simulation

According to the timeliness and accuracy of collision detection in missile flight visual simulation, this article puts forward an optimization algorithm for collision detection based on mixed bounding box. This algorithm established bounding box tree beginning with the hierarchical structure. In this bounding box tree, Sphere is used in upper level, and OBB is chosen in the lower level. At the same time, the intermediate buffer layer is removed. Then after the realization of this algorithm in missile flight visual simulation system, its performance is analyzed and especially compared with intersect vector collision detection algorithm and OBB bounding box collision detection algorithm. The analysis and comparison show that, this mixed bounding box algorithm can effectively improve the accuracy and timeliness of collision detection in missile flight visual simulation.