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模拟弹塑性材质的物品

Elastoplastic Hair and Cloth Simulations | Two Minute Papers #176

亲爱的学霸们 这里是由Károly Zsolnai-Fehér带来的两分钟论文
Dear Fellow Scholars, this is Two Minute Papers with Károly Zsolnai-Fehér.
这是一片由超过一百万微小的三角形模拟形成的弹性布料
This is a piece of elastic cloth modeled from more than a million tiny triangles
及其与七百万颗彩色沙粒的相互作用
and its interaction with 7 million colored grains of sand.
由于以下两个原因 要做到这个超级有难度
This is super challenging because of two things:
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
one, we have to compute the elastic deformations when these millions of tiny elements collide,
第二 同时保持双向耦合
and two, all this, while maintaining two-way coupling.
这意味着布料对沙有一个作用效果
This means that the cloth has an effect on the sand,
而沙的作用效果又必须在布料上模拟出来
but the effect of the sand is also simulated on the cloth.
在弹性形变中 潜在的相互作用
In elastic deformations, there are potential interactions
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
between distant parts of the same material and self-collisions may also occur.
先前最顶尖技术要么缺少这些自碰撞效果
Previous state of the art techniques were either lacking in these self-collision effects,
要么缺少处理包括布料断裂在内的能力
or the ones that were able to process that also included the fracturing of the material.
有了这个新奇的技术 如你所见 模拟弹性形变更有希望了
With this novel work, it is possible to simulate both elastic deformations as you can see here,
而且 它同时支持模拟塑性
but, it also supports simulating plasticity
如你所见 这里的布料相互之间滑落下去
as you can see here with the cloth pieces sliding off of each other.
太美了
Beautiful!
这项新技术也支持对多种不同类型材质的模拟
This new technique also supports simulating a variety of different types of materials,
纺织布斗篷 粗毛地毯 捻布 毛发 撕裂纤维等等
knitted cloth ponchos, shag carpets, twisting cloth, hair, tearing fiber and more.
所有这些的通常执行时间在每帧10到90秒之间
And it does all this with a typical execution time between 10 to 90 seconds per frame.
在这些黑屏中 你会看到时间信息
In these black screens, you see the timing information
以及在模拟中运用的微粒和三角形的数量
and the number of particles and triangles used in these simulations.
你会看到有许多场景
And you will see that there are many scenes
在这些场景中 数百万的三角形和微粒在极短时间内被处理
where millions of triangles and particles are processed in very little time.
只用到一项技术来实现这么多种相互作用
It is very rare that we can implement only one technique
同时还快速得到结果 这是非常罕见的
that takes care of so many kinds of interactions while still obtaining results very quickly.
简直太疯狂了
This is insanity.
这篇论文绝对是顶级的
This paper is absolutely top tier bang for the buck
我真的很期待将来在各种数字媒体中
and I am really excited to see some more elastoplastic simulations
看到更多弹塑性模拟
in all kinds of digital media in the future.
你知道我们的格言接下来再多几篇论文
You know our motto, a couple more papers down the line
像这样的实时应用就可能成为现实
and having something like this in real-time applications may become a reality.
真酷
Really cool!
如果你喜欢这期视频觉得每月8个视频值一美元
If you enjoyed this episode and you feel that 8 of these videos a month is worth a dollar,
请考虑一下在Patreon平台上支持我们
please consider supporting us on Patreon.
每月一美元也不贵
One dollar per month really doesn’t break the bank
但这对于我们继续做下去是莫大的帮助
but it is a great deal of help for us in keeping the series going.
你们的支持一直以来都非常让我感叹
And your support has always been absolutely amazing
我非常感谢有你们这么多热心的学霸来支持我们
and I am so grateful to have so many devoted Fellow Scholars like you in our ranks.
视频简介中有详细内容请看一下吧
Details are in the video description, have a look.
感谢你的观看和慷慨支持下期再见
Thanks for watching and for your generous support, and I’ll see you next time!

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视频概述

今天要介绍一种快速模拟弹塑性材质的技术,它不仅能模拟其与其他物品的相互作用,还能模拟自碰撞效果

听录译者

收集自网络

翻译译者

One静茹

审核员

审核团O

视频来源

https://www.youtube.com/watch?v=RygQnpQMdPI

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