# Real-Time Oil Painting on Mobile | Two Minute Papers #143

## Метаданные

- **Канал:** Two Minute Papers
- **YouTube:** https://www.youtube.com/watch?v=1SHW1-qKKpY
- **Дата:** 09.04.2017
- **Длительность:** 2:42
- **Просмотры:** 11,318
- **Источник:** https://ekstraktznaniy.ru/video/14680

## Описание

The paper "Real-Time Oil Painting on Mobile Hardware" is available here:
http://graphics.cs.kuleuven.be/publications/SD2016RTOPOMH/index.html

In addition:
It is mentioned that mobile devices typically have a lower resolution display than desktop computers. While this is true, a more important limiting factor is screen real estate, and the fact that a resolution of the simulation is significantly lower on a phone given the vast differences in processing power. These are challenging limitations that are difficult to overcome.

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## Транскрипт

### Introduction []

Dear Fellow Scholars, this is Two Minute Papers with Károly Zsolnai-Fehér. It's been quite a while since we've talked about a paper on fluid simulations. Since my withdrawal symptoms are already kicking in, today, I simply have to talk to you about this amazing paint simulator program that runs in real time and on our mobile devices. These handheld devices typically have a lower image resolution compared to desktop computers, therefore it is indeed a challenge to put together a solution that artists can use to create detailed paintings with. And to accomplish this, this piece of work offers several killer features: for instance, the paint pigment concentration can be adjusted. The direction of the brush strokes is also controllable. And third, this technique is powered by a viscoelastic shallow water simulator that also supports simulating multiple layers of paint. This is particularly challenging as the inner paint layers may have already dried when adding a new wet layer on top of them. This all has to be simulated in a way that is physically plausible.

### Intuitive Feature [1:05]

But we're not done yet! With many different kinds of paint types that we're using, the overall outlook of our paintings are dramatically different depending on the lighting conditions around them. To take this effect into consideration, this technique also has an intuitive feature where the effect of virtual light sources is also simulated, and the output is changed interactively as we tilt the tablet around.

### Visual Comparison [1:28]

And get this, gravity is also simulated, and the paint trickles down depending on the orientation of our tablet according to the laws of physics. Really cool! The paper also shows visual comparisons against similar algorithms.

### Conclusion [1:42]

And clearly, artists who work with these substances all day know exactly how they should behave in reality, so the ultimate challenge is always to give it to them and ask them whether they have enjoyed the workflow and found the simulation faithful to reality. Let the artists be the judge! The user study presented in the paper revealed that the artists loved the user experience and they expressed that it's second to none for testing ideas. I am sure that with a few improvements, this could be the ultimate tool for artists to unleash their creative potential while sitting outside and getting inspired by nature. Thanks for watching and for your generous support, and I'll see you next time!