# Simulating Cuts On Virtual Bodies | Two Minute Papers #164

## Метаданные

- **Канал:** Two Minute Papers
- **YouTube:** https://www.youtube.com/watch?v=R5t74AC6I0A
- **Дата:** 21.06.2017
- **Длительность:** 2:58
- **Просмотры:** 25,214

## Описание

The paper "Robust eXtended Finite Elements for Complex Cutting of Deformables" is available here:
https://www.animation.rwth-aachen.de/publication/0551/
https://animation.rwth-aachen.de/media/papers/2017-SIGGRAPH-XFEM.pdf

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## Содержание

### [0:00](https://www.youtube.com/watch?v=R5t74AC6I0A) Segment 1 (00:00 - 02:00)

dear fellow Scholars this is two minute papers with Caro this paper is about the absolute favorite thing of computer Graphics researchers destroying virtual objects in the most creative ways this is the only place on Earth where words like deformable bodies and cutting can be used in the same sentence and be delighted about it this time around we are going to cut and dismember every virtual object that stands in our way and then some more in these animations we have complex 3D geometry and the objective is to change these geometries in a way that remains physically correct even in the presence of complex cut surfaces when such a cut happens traditional techniques typically delete and duplicate parts of the geometry close to the cut this is a heavily simplified solution that leads to inaccurate results other techniques try to rebuild parts of the geometry that are affected by the cut this is what computer Graphics researchers like to call remeshing and it works quite well but it takes ages to perform also it still has drawbacks for instance quantities like temperature and deformations also have to be transferred to the new geometry which is non-trivial to execute properly in this work a new technique is proposed that is able to process really complex Cuts without creating no geometry no remeshing takes place but the mass and stiffness properties of the materials are retained correctly also the fact that it minimizes the geometric processing overhead leads to a not only simpler but a more efficient solution there is so much visual detail in the results that I could watch this video 10 times and still find something new in there are also some horrifying Game of Thrones kind of experiments in this footage watch out ouch the presentation of the results and the part of the video that compares against the previous technique is absolutely brilliant you have to see it the paper is also remarkably well written make sure to have a look at that too the link is available in the video description I am really itching to make some longer videos where we can go into some of these derivations and build a strong intuitive understanding of them that sounds like a ton of fun and if this could ever become a full-time Endeavor I am more than enthused to start doing more and work on bonus videos like that if you enjoyed this episode don't forget to hit the like button and subscribe to the series normally it's up to YouTube to decide whether you get a notific or not so make sure to click the Bell icon as well to never miss a two-minute papers episode thanks for watching and for your generous support and I see you next time

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*Источник: https://ekstraktznaniy.ru/video/14639*