基于OSG与粒子系统的气候特效模拟研究

Research on the Climate Effects Simulastion Bases on OSG and Particle System

气候特效的模拟在视景仿真系统、计算机游戏、三维动画中有着广泛的应用,它可以大大提高三维场景的真实感。粒子系统是模拟气候特效的有效方法。介绍了粒子系统相关原理、粒子的数学模型以及自定义粒子系统的创建,并运用OSG技术与粒子系统,以雨雪雾为例模拟了自然景物中的气候特效。实验结果证明,基于OSG的自定义粒子系统能够更加真实地模拟气候特效,仿真效果逼真,适合在高仿真度的环境下使用。

Simulation of climate effects in fields of visual simulation system, computer games and 3D animation has a wide range of al）plications, it can greatly improve the realism of three-dimensional scene. Particle system is an effective way to simulate climate effects. In this paper, we introduce the the principle of particle system, mathematical model of particles as well as the creation of a custom particle system ,and then simulated the natural scene taking climate effects of rain and fog for example using technology of OSG and particle system. The experimental results show that custom particle system based on OSG can simulate more real climate effects, the simulation effect is clear,ideal for use in high-fidelity environ- ments.