本文对计算机图形学中三维云的建模和绘制技术进行了概述，主要介绍目前比较典型的基于个体生长的云建模技术和基于物理过程的云建模技术。
The methods of cloud modeling and rendering in computer graphics are summed up. The succeeding and typical genetic technology and physically based technology at present are summarized.
烟雾和云的模拟广泛应用于电脑游戏、影视特技、科学计算可视化以及军事模拟和训练等领域，是计算机图形学的一个热点问题。
Smoke and cloud simulation is a hotspot in computer Graphics. It is widely used in computer games, film and TV special effects, scientific computing visualization and military simulating.
用计算机真实地再现水、云、烟为代表的流体在自然界中的运动过程和运动规律，即流体模拟是计算机图形学中的一个重要研究领域。
Building animation tools for fluid motions by computer on many natural phenomena such as water, cloud and smoke, which is one of the most important problems in computer graphics.
云是一种常见、普遍的自然现象，云的建模和渲染是计算机图形学领域的一个难点问题。
Cloud is a common, widespread natural phenomenon, cloud modeling and rending are a difficult problem in the field of computer graphics.
云是一种常见、普遍的自然现象，云的建模和渲染是计算机图形学领域的一个难点问题。
Cloud is a common, widespread natural phenomenon, cloud modeling and rending are a difficult problem in the field of computer graphics.
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