关键词: 多通道, 三维雨雪, 纹理滚动, 粒子系统

Abstract: Multi-channel technology is an important part of the real-time three-dimensional system.Simulation of rain and snow in multi-channel system requires high performance and synchronization between channels.A new algorithm is proposed based on the analysis of traditional methods of particle system.The basic idea of the algorithm is to scroll the rain and snow texture tiled on multiple cylindrical surfaces whose center is the view point，and to provide a three-dimensional sense of parallax based on the surfaces’ different depth.Experimental results indicate that the new solution produces realistic visual effect on multi-channel system and meets the requirements of both real-time and inter-channel synchronization.

Key words: multi-channel, rain and snow, texture scrolling, particle system