<h2>Optical illusion</h2>

<p>According to <a href="https://en.wikipedia.org/wiki/Optical_illusion" rel="nofollow noreferrer">Wikipedia</a>, this is</p>

<blockquote>
  <p>an illusion caused by the visual system and characterized by a visual percept that arguably appears to differ from reality.</p>
</blockquote>

<p>In the first two photographs (making it '(optical) illusion photography'), this 'visual percept' is a flag. Here the 'illusion' is caused by the (careful) positioning of objects in alignment relative to the point of view.</p>

<p>Another term often used is for this is '<a href="https://en.wikipedia.org/wiki/Forced_perspective" rel="nofollow noreferrer">forced perspective</a>', which is a type of optical illusion.</p>

<p>Though the illusion is not as monumental as the word suggests, it functions basically the same as works like this one, the <em>Triumph of the Name of Jesus</em> by Giovanni Battista Gaulli:</p>

<p><a href="https://i.sstatic.net/AP2fw.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/AP2fw.jpg" alt="Triumph of the Name of Jesus by Giovanni Battista Gaulli - from Wikipedia"></a></p>

<p>This example is another sub-category of those optical illusions, referred to as <em><a href="https://en.wikipedia.org/wiki/Trompe-l%27%C5%93il" rel="nofollow noreferrer">trompe l'œil</a></em> (from French, meaning 'fooling the eye'), a term which is almost exclusively to paintings. It is often used in conjunction with architectural forced perspective.</p>

<p><strong>Our perception tricks us into seeing more than the sum of the parts (like depth, light, &amp;c.).</strong><br>
The construction of (linear) perspective is also based on this principle. </p>

CC BY-SA 4.0
2019-11-18T01:10:08.627Z
I can't really figure out what the second set of photographs is about. If it is another optical illusion, I don't see it - if not, I think it should be posted as a separate question.
Joachim
CC BY-SA 4.0
2019-11-18T01:09:47.203Z
2019-11-18T15:34:20.510Z
2019-11-18T15:34:20.510Z
Joachim
<p>I think the title is the most proper question that could come up in my mind, as for an example - take a look at 2014 ESC postcards:</p>

<p><a href="https://i.sstatic.net/eIa2W.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/eIa2W.jpg" alt="Danish flag"></a>
<a href="https://i.sstatic.net/GHVOa.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/GHVOa.jpg" alt="Swedish flag"></a></p>

<p>or this:</p>

<p><a href="https://i.sstatic.net/j5ySH.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/j5ySH.jpg" alt="Tennis racket"></a>
<a href="https://i.sstatic.net/LEmlH.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/LEmlH.jpg" alt="Tennis racket represented by a pool and a rubber duck"></a></p>

<p>Thanks in advance!</p>

CC BY-SA 4.0
2019-11-18T09:08:28.300Z
These use the shape, color, and arrangement of familiar objects to simulate the appearance of something unrelated.  Would you consider this kind of "food art" in the same category: https://allthatsinteresting.com/food-art?
fixer1234
CC BY-SA 4.0
2019-11-26T19:41:42.287Z
@fixer1234, I would probably say so, yeah.
Remarken
<technique-identification>
What's the name of a concept where objects take on forms out of different things?
Remarken
# What's the name of a concept where objects take on forms out of different things?

(Asked by: username_0 on 2019-11-17)

I think the title is the most proper question that could come up in my mind, as for an example - take a look at 2014 ESC postcards:

[![Danish flag](https://i.sstatic.net/eIa2W.jpg)](https://i.sstatic.net/eIa2W.jpg)
[![Swedish flag](https://i.sstatic.net/GHVOa.jpg)](https://i.sstatic.net/GHVOa.jpg)

or this:

[![Tennis racket](https://i.sstatic.net/j5ySH.jpg)](https://i.sstatic.net/j5ySH.jpg)
[![Tennis racket represented by a pool and a rubber duck](https://i.sstatic.net/LEmlH.jpg)](https://i.sstatic.net/LEmlH.jpg)

Thanks in advance!

**Tags:** technique-identification

> **Comments:**
> **username_1**: These use the shape, color, and arrangement of familiar objects to simulate the appearance of something unrelated.  Would you consider this kind of "food art" in the same category: https://allthatsinteresting.com/food-art?  
> **username_0**: @username_1, I would probably say so, yeah.  

---

## 1 answers

### Answer by username_2 on 2019-11-18. Score: 2 | Accepted answer

## Optical illusion

According to [Wikipedia](https://en.wikipedia.org/wiki/Optical_illusion), this is

> an illusion caused by the visual system and characterized by a visual percept that arguably appears to differ from reality.

In the first two photographs (making it '(optical) illusion photography'), this 'visual percept' is a flag. Here the 'illusion' is caused by the (careful) positioning of objects in alignment relative to the point of view.

Another term often used is for this is '[forced perspective](https://en.wikipedia.org/wiki/Forced_perspective)', which is a type of optical illusion.

Though the illusion is not as monumental as the word suggests, it functions basically the same as works like this one, the *Triumph of the Name of Jesus* by Giovanni Battista Gaulli:

[![Triumph of the Name of Jesus by Giovanni Battista Gaulli - from Wikipedia](https://i.sstatic.net/AP2fw.jpg)](https://i.sstatic.net/AP2fw.jpg)

This example is another sub-category of those optical illusions, referred to as *[trompe l'œil](https://en.wikipedia.org/wiki/Trompe-l%27%C5%93il)* (from French, meaning 'fooling the eye'), a term which is almost exclusively to paintings. It is often used in conjunction with architectural forced perspective.

**Our perception tricks us into seeing more than the sum of the parts (like depth, light, &c.).**  
The construction of (linear) perspective is also based on this principle.

> **Comments:**
> **username_2**: I can't really figure out what the second set of photographs is about. If it is another optical illusion, I don't see it - if not, I think it should be posted as a separate question.  

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