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Schurik
Sep 13, 2008


Here are a couple in the same vein to get started.

Feel free to check these in paint.


The cross-sections of both crosses are the same color:



The green and blue spirals are the same color:



A and B are the same color:

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social vegan
Nov 7, 2014



there's a bear on the tolblerone bar logo in the mountain if you look closely

aas Bandit
Sep 28, 2001
Oompa Loompa
Nap Ghost

Schurik posted:

The green and blue spirals are the same color:



That one's excellent, and I hadn't seen it before. :)

I always liked this one:



Also, the ones that seem to be moving are cool:





Fatkraken
Jun 23, 2005

Fun-time is over.

aas Bandit posted:

Also, the ones that seem to be moving are cool:







seeing them as moving is not exclusive to humans, which is cool

https://www.youtube.com/watch?v=Cxtc9pMF1lQ

Thirteen Orphans
Dec 2, 2012

I am a writer, a doctor, a nuclear physicist and a theoretical philosopher. But above all, I am a man, a hopelessly inquisitive man, just like you.
With thanks to John Hick:

aas Bandit
Sep 28, 2001
Oompa Loompa
Nap Ghost

Fatkraken posted:

seeing them as moving is not exclusive to humans, which is cool

https://www.youtube.com/watch?v=Cxtc9pMF1lQ

That's hilarious. Confuse your pets!

Schurik
Sep 13, 2008


aas Bandit posted:

Also, the ones that seem to be moving are cool:

A couple more in that vein:





Zulily Zoetrope
Jun 1, 2011

Muldoon

Thirteen Orphans posted:

With thanks to John Hick:



https://m.youtube.com/watch?v=GLEW3V3QW1I

Vorpal Cat
Mar 19, 2009

Oh god what did I just post?

aas Bandit posted:


Also, the ones that seem to be moving are cool:







Does anyone have a concise explanation for how these work?

I assume it has something to do with how your peripheral vision detects movement, as the apparent motion increases if you unfocused your eyes but disappears if you concentrate on the right part of picture.

Hakkesshu
Nov 4, 2009


I always liked this one because you can tell the exact moment where your brain just wigs out and changes direction

By popular demand
Jul 17, 2007

IT *BZZT* WASP ME--
IT WASP ME ALL *BZZT* ALONG!


^Beaten

Somfin
Oct 25, 2010

In my🦚 experience🛠️ the big things🌑 don't teach you anything🤷‍♀️.

Nap Ghost

Hakkesshu posted:

I always liked this one because you can tell the exact moment where your brain just wigs out and changes direction



This one just straight-up does not work for me- I always, always, always see the rotation as clockwise.

Admiral Bosch
Apr 19, 2007
Who is Admiral Aken Bosch, and what is that old scoundrel up to?

Somfin posted:

This one just straight-up does not work for me- I always, always, always see the rotation as clockwise.

I am the complete opposite. Anyone got the one with the diagram?

Das Boo
Jun 9, 2011

There was a GHOST here.
It's gone now.

Somfin posted:

This one just straight-up does not work for me- I always, always, always see the rotation as clockwise.

Try covering her up above the knees. That's the only thing that works for me.

Gyro Zeppeli
Jul 19, 2012

sure hope no-one throws me off a bridge

Das Boo posted:

Try covering her up above the knees. That's the only thing that works for me.

I find looking at the reflection of her foot helps to change her direction too.

Schurik
Sep 13, 2008


Just use this:

Fatkraken
Jun 23, 2005

Fun-time is over.

Schurik posted:

Just use this:



:O holy poo poo THANK YOU! (I can usually make it flip but not reliably, this is like an exorcism of too long spent starting at stupid gifs)

BurnBlackJay
May 31, 2011

by Lowtax

Schurik posted:

Just use this:



WHAT THE gently caress

Oxyclean
Sep 23, 2007


Haha, holy poo poo that's wild. I was watching the one without the guides and could only see it clockwise, I looked counter-clockwise one with the guides and went back up, and then I could only see it counter-clockwise, and then flipped it back again by looking at the guided one again. Like it takes the shortest glance at the guided one to flip how my brain sees it. This is nuts. :psyduck:

Nostradingus
Jul 13, 2009


I don't get this one. Is it that two of them appear to be concave and two appear to be convex, but they actually aren't?

aas Bandit
Sep 28, 2001
Oompa Loompa
Nap Ghost

Nostradingus posted:

I don't get this one. Is it that two of them appear to be concave and two appear to be convex, but they actually aren't?

Um...not sure what you're asking, I guess? "Don't get" meaning what? Are you saying that they don't seem like they're moving to you (just kinda slowly swimming slightly back and forth), or that you're not sure what's causing it?
Yeah, they're shaded differently to make it look like you're seeing them from slightly different angles...

Schurik
Sep 13, 2008


Here are another two I like, these work by increasing your eyes' distance to your screen (may take a foot or two), or, for some people, by squinting.

Here's Marilyn/Einstein:



These two switch places:




This is not really an illusion, but have you ever seen an animated magic eye?

Schurik has a new favorite as of 21:26 on Aug 27, 2015

Debunk This!
Apr 12, 2011




This elephant has too many legs. :mad:

pookerbug
Jan 21, 2006

the vitreous humourist

I think I need to go lie down.

Frostwerks
Sep 24, 2007

by Lowtax

Rare Collectable posted:



This elephant has too many legs. :mad:

It's called a dick, you dork.

snucks
Nov 3, 2008

Try again. Fail again. Fail better.
The perfect balance between immensely satisfying and infuriating:
https://www.youtube.com/watch?v=5VR1zGlXIlw

soundsection
May 10, 2010
http://www.ritsumei.ac.jp/~akitaoka/index-e.html

Ride The Gravitron
May 2, 2008

by FactsAreUseless

Schurik posted:



This is not really an illusion, but have you ever seen an animated magic eye?



holy poo poo please tell me there's more

Toys For Ass Bum
Feb 1, 2015

Magic eye stuff counts, right?


This one's my favourite since it's a proper textured 3D model thing and not just "random flat static poo poo floating off the screen"

Shneak
Mar 6, 2015

A sad Professor Plum
sitting on a toilet.


Good ol' Jesus. Stare at it for 30 seconds without blinking and then look at something blank.

My mind always interprets it as some terrifying zombie.

SulfurMonoxideCute
Feb 9, 2008

I was under direct orders not to die
🐵❌💀

Nostradingus posted:

I don't get this one. Is it that two of them appear to be concave and two appear to be convex, but they actually aren't?

That one did nothing on my phone, but when I looked at it on my laptop, the circles all started wandering around slowly.

Frostwerks
Sep 24, 2007

by Lowtax

Shneak posted:



Good ol' Jesus. Stare at it for 30 seconds without blinking and then look at something blank.

My mind always interprets it as some terrifying zombie.

If you want to see something actually creepy, do this with your likeness in a mirror.

Frostwerks
Sep 24, 2007

by Lowtax
Er, that came out wrong wow

Schurik
Sep 13, 2008


Volume posted:

holy poo poo please tell me there's more

Forgall
Oct 16, 2012

by Azathoth
I never see anything in those magic eye things. What's the deal with them?

Schurik
Sep 13, 2008


Forgall posted:

I never see anything in those magic eye things. What's the deal with them?

You see how the pattern repeats horizontally? Unfocus your eyes (look past your screen) until the pattern overlaps once. A part of the image should bulge out to form a separate image. Try it on a non-moving one first though.

Here's a kinda-sorta demonstration of what it should look like (without the movement of course), which is the hangup for most people I think.

Cumslut1895
Feb 18, 2015

by FactsAreUseless


Holy crap, I just learned how to see magic eye images. I can unfocus my eyes at will, and if I do that I see three discrete depth layers in this image, none of which are an interesting shape. If I refocus my eyes a little they suddenly form into two depth layers that form a dolphin

Thanks, Schurik!


edit: if I unfocus super hard I can see four layers

KongGeorgeVII
Feb 17, 2009

Flow like a
harpoon
daily and nightly.

snucks posted:

The perfect balance between immensely satisfying and infuriating:
https://www.youtube.com/watch?v=5VR1zGlXIlw

It is late and I am easily confused. Can someone explain how this was done?

Somfin
Oct 25, 2010

In my🦚 experience🛠️ the big things🌑 don't teach you anything🤷‍♀️.

Nap Ghost

Schurik posted:

Just use this:



YA DONE FIXED ME BRAIN

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Schurik
Sep 13, 2008


Shneak posted:



Good ol' Jesus. Stare at it for 30 seconds without blinking and then look at something blank.

My mind always interprets it as some terrifying zombie.

Same principle, crazier effect:

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