基于粒子系统的烟雾模拟

在计算机图形学领域，最热门的一个研究课题就是如何模拟自然景物，它的应用非常之广，但是，很多自然景物的外观是非常不规则的，而且又是随机变化的，所以模拟起来会有很大的难度。到目前为止，粒子系统技术一直被大家认为是模拟像自然景物这类不规则物体的最成功最有效的一个图形生成算法．在深入研究国内各种烟雾模拟方法的基础上，采用粒子系统和纹理贴图技术并结合烟雾运动的基本物理公式实现对烟雾的有效模拟。通过汽车尾气随风飘散的效果，来满足视觉上对烟雾浓度渐变的要求，能够真实地模拟出不断运动变化的烟团。最后．对研究工作进行总结．并对下一步的研究工作进行展望。

Smoke Simulation Based on Particle System

The simulation of natural scenery has always been a popular research topic in the field of computer graphics and is used widely. However, most natural objects changes randomly in their shapes. It＇s difficult to describe them. So far, the particle system is regarded as the most successful simulation of a pattern generation algorithm used to irregular features. Based on a deep study of various methods of simulation smog at home, the effective simulation of smog can be achieved by using particle system and texture mapping technology,combined with the basic physical equations of smog. The real motion of the smoke can be successfully simulated through the effects of vehicle exhaust to meet the visual requirements of the smoke concentration gradient. Finally, summarizes the research work and prospects the further re- search work.