# Interactive 3d art work - how'd they do some of these tricks?

**URL:** <https://boards.straightdope.com/t/interactive-3d-art-work-howd-they-do-some-of-these-tricks/627093>\
**Category:** Miscellaneous and Personal Stuff I Must Share\
**Created:** [July 3, 2012, 1:27pm UTC](https://boards.straightdope.com/t/interactive-3d-art-work-howd-they-do-some-of-these-tricks/627093 "2012-07-03T13:27:48Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![aceplace57](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/aceplace57/32/3500_2.png) [@aceplace57](https://boards.straightdope.com/u/aceplace57)\
**Post date:** [July 3, 2012, 1:27pm UTC](https://boards.straightdope.com/t/interactive-3d-art-work-howd-they-do-some-of-these-tricks/627093/1 "2012-07-03T13:27:48Z")

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I’ve been studying these photos trying to imagine what the art work looks like without the tourists.

I wonder how they knew where to stand and get such perfect effects? How in the heck did the tourist mount the horse and hold the spear? Is there a stuffed prop next to the painting? 😕 These can’t be just flat paintings with 3d art. The tourist is behind the chariot the girl in red is riding. That has to be a painting with a prop in front.

> **[Old masters of illusion: The Korean art galleries that add eye-popping...](https://www.dailymail.co.uk/news/article-2167648/The-Korean-art-galleries-add-eye-popping-optical-tricks-tourists-holiday-snaps.html)**
>
> Not content with simply looking at works of art, visitors to this bizarre museum in Busan, South Korea are able to 'interact' with the pieces thanks to mind-bending optical illusions.

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**Author:** ![PlainJain](https://avatars.discourse-cdn.com/v4/letter/p/5daacb/32.png) [@PlainJain](https://boards.straightdope.com/u/PlainJain)\
**Post date:** [July 3, 2012, 1:52pm UTC](https://boards.straightdope.com/t/interactive-3d-art-work-howd-they-do-some-of-these-tricks/627093/2 "2012-07-03T13:52:40Z")

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It all looks like flat painting and camera angles to me. I believe in the horse one she has her other leg behind the wall through the cut out.

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**Author:** ![Zebra](https://avatars.discourse-cdn.com/v4/letter/z/c0e974/32.png) [@Zebra](https://boards.straightdope.com/u/Zebra)\
**Post date:** [July 3, 2012, 2:03pm UTC](https://boards.straightdope.com/t/interactive-3d-art-work-howd-they-do-some-of-these-tricks/627093/3 "2012-07-03T14:03:01Z")

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Some of it sticks out of the wall. Some does not. The tourists were very good at getting just the right camera angle to make the effect work. If the camera was in just a little different spot, you wouldn’t see the effect.

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**Author:** ![Hampshire](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/hampshire/32/4887_2.png) [@Hampshire](https://boards.straightdope.com/u/Hampshire)\
**Post date:** [July 3, 2012, 7:19pm UTC](https://boards.straightdope.com/t/interactive-3d-art-work-howd-they-do-some-of-these-tricks/627093/4 "2012-07-03T19:19:54Z")

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Most are flat surfaces but a few have cutouts in the wall (girl on horse), or a flat prop elsewhere in the room (guy on horse, guy behind coiled snakes).  
To get in the right position they probably are taking cues from the photographer; “move you hand a little higher, a little higher, now to the leeeeft, and freeze!”

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**Author:** ![postcards](https://avatars.discourse-cdn.com/v4/letter/p/8e8cbc/32.png) [@postcards](https://boards.straightdope.com/u/postcards)\
**Post date:** [July 3, 2012, 9:53pm UTC](https://boards.straightdope.com/t/interactive-3d-art-work-howd-they-do-some-of-these-tricks/627093/5 "2012-07-03T21:53:03Z")

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The toenail painting and Asian torture seem to be trompe l’oeil; both are painted directly on the wall (including the frame).

Note in the toenail painting how there’s a shadow of the foot and brush, but no shadow of the woman’s hand holding the brush.

In the Asian torture there’s a shadow below the paddle and to the right and below the frame, but the person holding the paddle has a shadow falling to the viewer’s left.

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**Author:** ![AaronX](https://avatars.discourse-cdn.com/v4/letter/a/7bcc69/32.png) [@AaronX](https://boards.straightdope.com/u/AaronX)\
**Post date:** [July 4, 2012, 8:57am UTC](https://boards.straightdope.com/t/interactive-3d-art-work-howd-they-do-some-of-these-tricks/627093/6 "2012-07-04T08:57:01Z")

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Actually, I think these are quite disappointing in real life, because they look weird from any other point besides the one where the picture was taken. With 3D vision, they look weird even from that point.
