脆性物体破碎效果实时仿真研究  

Research on Real Time Simulation of Brittle Objects Fracturing

作　　者：王全玉[1] 米庆[1] 刘昕[1] 

机构地区：[1]北京理工大学计算机学院,北京100081

出　　处：《系统仿真学报》2012年第1期30-34,共5页Journal of System Simulation

摘　　要：通过对现实世界中脆性物体破碎现象的分析,实现了一种在虚拟场景中实时模拟物体破碎效果的方法。该方法采用三角面片模型对破碎物体进行建模,采用BSP树结构存储以实现三角面片的快速分类及检索。对模型进行预处理并使用平面进行切割,对切割所产生的多边形进行三维重建,得到新的完整的三角面片模型。对预处理所得的各个三角面片设置其初始位置、速度、角度等以实现物体破碎过程的实时仿真,引入碰撞检测以免碎片相互贯穿。Based on the analysis of brittle objects fragmentation in the real world, a new approach was proposed to simulate realtime fracturing effect in the virtual environment. Brittle objects were represented by triangular surface mesh model and the triangles were stored in a BSP tree structure in order to achieve rapid classification and retrieval. Plane was used to cut the model, then the polygons were reconstructed and a new complete triangular model was generated. Position, speed and angle of each preprocessed triangle were initialized in order to achieve real-time simulation, and collision detection was hired to avoid penetration of each fragment.

关 键 词：破碎 多边形切割 碰撞检测 BSP树 仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]