【作者】 刘立峰； 蔡世杰； 马惠敏；

【Author】 Liu Lifeng,Cai Shijie,Ma Huimin (Department of Electronic Engineering,Tsinghua University,Beijing 100086)

【机构】 清华大学电子工程系；

【摘要】 在视景仿真中,对云的建模和实时渲染是一份十分重要的工作。本文分别从粒子模型和贴图模型两个方面对云建模及仿真进行了研究,并在OpenGL上分别实现了粒子云建模和贴图版云建模,对于这两个模型应用于云建模及仿真的效果及可行性进行了探讨。在云模型中,实现了云初始粒子位置的设置,并在接下来的云动画效果中模拟了云的随机运动、风对云运动的影响和云消散过程,实现了很好的云渲染效果。更多还原

【Abstract】 In the scene simulation,the modeling and real-time rendering of cloud is a very important work.In this paper,the particle model and mapping model which are two kinds of modeling and simulation methods for clouds have been studied,and been achieved based on OpenGL.For these two models the effect of clouds and feasibility were discussed.In the cloud model,we achieved an initial particle cloud location settings,and in the next cloud animation,we added cloud random motion,effect of wind,and cloud dissipation to achieve a good rendering of the cloud.更多还原