基于OSG和粒子系统的雪效仿真  

Simulation of snow effect based on OSG and particle system

作　　者：张颖超[1] 邹丽萍[1] 刘佳[1] 

机构地区：[1]南京信息工程大学信息与系统科学研究院,南京210044

出　　处：《南京信息工程大学学报（自然科学版）》2010年第2期107-112,共6页Journal of Nanjing University of Information Science & Technology（Natural Science Edition）

基　　金：公益性行业(气象)科研专项资金(200806050);江苏省"六大人才高峰"高层次人才资助项目(06-A-027)

摘　　要：对自然现象的模拟,可以大大提高三维场景的真实感,在视景仿真系统、三维动画、影视广告等领域有着广泛的应用.粒子系统是一种实时模拟天气的有效方法.在分析粒子系统实现原理的基础上,利用MicrosoftVisualStudio2005提供的高度集成的软件开发环境,基于OSG(OpenSceneGraph)2.6建立粒子模型.试验结果表明,该方法能够有效地再现三维场景中的降雾、降雪场景.Simulation of natural phenomena can greatly improve the fidelity of 3D scene, which has been used widely in visual simulation system,3D animation, film TV and advertising. Particle system is an effective method in real-time natural phenomena simulation. Based on analyzing the realizing principle of the particle system, this paper makes use of the highly integrated software development environment provided by Microsoft Visual Studio 2005, and establishes the particle model based on OSG （OpenSceneGraph） 2.6. The results of experimentation have proved that this method can effectively represent fog and snow effect scenes in the three-dimensional scene.

关 键 词：虚拟现实 粒子系统 OSG 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]