迪斯尼的积雪模拟软件实用指南 - Disney’s Practical Guide to Snow Simulation

迪斯尼的积雪模拟软件实用指南 - Disney’s Practical Guide to Snow Simulation

What is simulation? Originally, animated movies were created using traditional hand-drawn animation techniques. Teams of animators would draw all characters and the surroundings frame by frame which would be assembled to compose the final film. But there is only so much a person can draw! Things like water, smoke and fire have extreme amounts of richness and degrees of freedom to their composition and movement, which makes them nearly impossible to animate “by hand” in any reasonable amount of time. That is where technology and physically-based algorithms come in: environmental effects like water, smoke and fire are governed by physical equations, so why not let computers do all the heavy computation to solve those equations. The programs that do this computation are called simulators.
什么是Simulation？最初，动画电影是使用传统的手绘动画技术创作的。团队的动画师将所有角色的框架，将组合构成最终的电影环境框架。但只有这么多的人可以画！像水，烟和火的东西，有极端的丰富程度和自由度，他们的组成和运动，这使得他们几乎不可能的动画“手”在任何合理的时间量。这是技术和基于物理的算法来：环境的影响，如水，烟雾和火灾是由物理方程组，所以为什么不让电脑做所有的沉重的计算来解决这些方程。做这种计算的程序被称为模拟器。

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