In this paper,a method is proposed to realize real-time simulation of dust behavior,which is based on the physical model of the dust behavior and the principle of particle system.First,define an applicable dust behavior particle system,next draw the system by OpenGL functions such as texture mapping and blending,especially,improve the real-time performance of the traditional particle system.Finally,the result shows the vivid appearance, and also meets the real-time requirement of the system when the method ...