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Dear Fellow Scholars, this is Two Minute Papers with Károly Zsolnai-Fehér. This is a piece of elastic cloth modeled from more than a million tiny triangles and its interaction with seven million colored grains of sand.
亲爱的学霸们，这里是由 Károly Zsolnai-Fehér 为你们带来的两分钟论文。这是一块弹性布料，由超过一百万个小三角形组成，与七百万个彩色沙粒相互作用。
This is super challenging because of two things: one, we have to compute the elastic deformations when these millions of tiny elements collide, and two, all this, while maintaining two-way coupling. This means that the cloth has an effect on the sand, but the effect of the sand is also simulated on the cloth.
由于以下两个原因，要做到这个超级有难度：第一，当这些上百万的细小元素碰撞时，我们必须计算出弹性形变，第二，同时还要保持双向耦合。即布料对沙有一个作用效果，而沙的作用效果又必须在布料上模拟出来。
In elastic deformations, there are potential interactions between distant parts of the same material and self-collisions may also occur. Previous state of the art techniques were either lacking in these self-collision effects, or the ones that were able to process that also included the fracturing of the material.
在弹性形变中，潜在的相互作用存在于同件布料中相距较远的部分，并且也可能出现自碰撞。先前最顶尖的技术要么缺少这些自碰撞效果，要么就缺少处理包括布料断裂在内的能力。
With this novel work, it is possible to simulate both elastic deformations as you can see here, but, it also supports simulating plasticity as you can see here with the cloth pieces sliding off of each other. Beautiful!
如你所见，有了这个新奇的技术，模拟弹性形变就更有希望了，而且它还同时支持模拟塑性，你看，这里的布料相互之间滑落下去。太美了！
This new technique also supports simulating a variety of different types of materials, knitted cloth ponchos, shag carpets, twisting cloth, hair, tearing fiber and more. And it does all this with a typical execution time between 10 to 90 seconds per frame.
这项新技术也支持对多种不同类型材质的模拟，比如纺织布斗篷、粗毛地毯、捻布、毛发、撕裂纤维等等。所有这些通常的执行时间在每帧10到90秒之间。
In these black screens, you see the timing information and the number of particles and triangles used in these simulations. And you will see that there are many scenes where millions of triangles and particles are processed in very little time.
在这些黑屏中，你会看到时间信息以及在模拟中运用的微粒和三角形的数量。你会看到，在很多场景中，数以百万计的三角形和粒子在很短的时间内被处理。
It is very rare that we can implement only one technique that takes care of so many kinds of interactions while still obtaining results very quickly. This is insanity.
只用到一项技术就能实现这么多种相互作用，同时还快速得到结果，这是非常罕见的。简直太疯狂了。
This paper is absolutely top tier bang for the buck and I am really excited to see some more elastoplastic simulations in all kinds of digital media in the future. You know our motto: a couple more papers down the line and having something like this in real-time applications may become a reality.
这篇论文研究绝对是顶级的，我真的很期待在各种数字媒体中看到更多弹塑性模拟。你知道我们的格言：再多几篇论文，在实时应用中实现这样的东西就可能会成为现实。
Really cool! If you enjoyed this episode and you feel that 8 of these videos a month is worth a dollar, please consider supporting us on Patreon.
真酷！
如果你喜欢这期视频，觉得每月8个视频值一美元，就请考虑一下在 Patreon 平台上支持我们。
One dollar per month really doesn't break the bank but it is a great deal of help for us in keeping the series going. And your support has always been absolutely amazing and I am so grateful to have so many devoted Fellow Scholars like you in our ranks.
每月一美元也不贵，但这对于我们继续做下去是莫大的帮助。你们的支持一直以来都非常让我感叹，我非常感谢有你们这么多热心的学霸来支持我们。
Details are in the video description, have a look. Thanks for watching and for your generous support, and I'll see you next time!
视频简介中有详细内容，去看一下吧。感谢你的观看和慷慨支持，我们下期再见！
