Well, time to get the torches and pitchforks.

So your telling me whenever I look into a mirror, I'm not actually ugly?

Don't bend spacetime like that.

When I was a kid, I would try to make the square peg fit into the round hole. This explains it.

I love displays like this that constantly remind me of how limited human perception really is and how easily our brains can be fooled, keeps me humble... and open minded.

Wow, Captain Disillusion's musical approximation is quite accurate.

For those who are wondering, the shape of the object is not what you think it is. It's slanted and curved in a way that looks like it has angular corners from some perspective. Remember the mirror is simply presenting you another perspective to the shape. You can see some hints of the actual shape when he rotates the shape at the beginning.

I was like, "Yeah, sure, this makes sense." And then they brought on the fourth and fifth ones and my nogging started throbbin.

I thought we banned sorcery and black magic what gives

oneside is shorter than the other. when you look at it perpindicular to the top surface which is cut at an angle, you see the rectangles, but when you look with the direction of the slope it looks like circles. i love this

It's the shape of the objects + perspective. Simple, yet awesome!

man that angle and work to tone the objects must be immense

Pause the video at 0:15. The top edges of the shapes are such that from a rear-facing 45-degree angle, they appear circular. but if you view the shapes from the front-facing 45-degree angle, the top edges present a rectangle shape.

Dude, the music is so good. I'll watch the whole video just to hear it.

for those wondering how the illusion is done the magic words are, perspective angle. The object is designed in such a way that from two different perspectives it looks different. Artists used the same trick in paintings for centuries to make painted eyes look like they are following you.

Missed the perfect opportunity to do the Olympic Rings with this. So close.

Pause the video after he turns the first object 90 degrees.

The top is cut to make the shapes seen in the mirror. The sides are different heights. You can see it at 0:23

There are 2 things to keep in mind here. The original is slanted either towards the mirror and then rotated so it is slanted away from the mirror to give the impression that there are angles in the reflection. That's why at one point the original and the reflection look the same midway through rotation because of no slant. BUT the big giveaway is the shadow. If you look at the shadow the shadow shows that the shape is always cylindrical no matter how it's turned. So, while our brains are seeing angles there are in fact none. The shadow never lies.

wtf...I can't even..... well at least I'm here before a million views :p

The key to the illusion is the point of view. I imagine that it is possible to do that by taking a paper folded in the shape of a rectangle. Then, cut it by looking in a mirror to make it appear round. Do it both sides ( up and down) and finally the edge facing the mirror must be rounded.

Id love to model these in CAD and 3d print them!

Its a hybrid circle and square with two raised edges and two lowered edges, then just a matter of perspective.

That is absolutely beautiful!

It's perspective. Both sides are at different heights. See his finger is under it a 0:43

It pobably does this only at 45 viewing angle, but really interesting.

I love illusions like these! its all about the way it's shaped

It's annoying to see the amount of ignorant people saying "It's the mirror" or "It's two different people" No it's neither it's a circular object that has has been cut to make one side of it rise and one side of it sink to resemble a different shape all together. But when it's on the high cut side it looks circular on the low cut side you see the high cut side poking out this making it look like a diamond.

Stop at 0:15. There you can see the actual shape of the "box". Our brain sticks the unusual form together regarding from different perspectives. Thus the mirror shows always the opposite. (Circle, Box) Imagine this illusion without the mirror, it will lead you to understand the illusion properly.

If you removed the mirror and another person was sitting on the other side, would that make a difference? I ask because there are married couples I would like to break up with this clever device.

The "smart" part of me knows how this is done, but the direct, visually dominated part of me still blew up. Yup. Half of my head just exploded.

They are cylinders in fact, but they are cut in such a way you see a rectangle profile from a certain angle. The light is frontal so you don't see any side shadow on the cylinders.

I just had Mac and cheese for dinner tonight

Omg I'm waaaayyy too high for this shit...ugh....my hands!! Where shiqijbwb$$$🙂😁👉🏿😑👌🏼😊👌🏼👌🏼😊👌🏼🍁🔥

So I know this video is 5 years old, but I just gotta point out that the Japanese at ~0:40 says "Captain Disillusion, the sad clown from space" And at ~3:06 it says "magic shape"

if you look at the bottom you can see it's not flat, it's shaped in a way that it looks different depending on your perspective. very cool

Can you do that with my beer belly?

"Your eyes can deceive you, don't trust them" ~Obi Wan Kenobi

when he set down the 2nd object, all i could focus on the WHOLE time was "PUSH THE TWO TOGETHER! I want to see what that would look like in the reflection..."

it's simple: these cylinders have height differences on the perimeter, and there's specific angle of the mirror

Pause at 0:15. That's how it works.

nice application of anamorphosis! This is actually pretty straightforward if you think hard enough about it... the camera angle is VERY deliberate..

If you watch closely at the beginning of the video, he turns the shape to reveal that it is cut at an angle to produce the illusion

Two mime artists who are good at doing the same exact movements!

What kind of sorcery is this?

Wow, how everybody assumes it's fake only because they can't explain it :D

More fluid and changing than people's genders.

このトリックを活かした推理ドラマとか作れそう

0:44 lool at his right thumb irl and the mirror

:15 you can clearly see the real shape of the cylinders. Everything else is just the viewing angles of the mirror and camera.

GUYS I FIGURED IT OUT... PHOTOSHOP "_"

Simple. 2 frog leg, fang of serpent, bat wing, all in a cooking pot, and on fire for 1 hour. Place de liquid allover the mirror and done.

I'm cringing at all of these people spewing all of these CGI theories when there's a video of a guy showing it in the 'Trending' section of KZfaq

Come on eyes, you are supposed to work

the angle is looking down on the shapes.the top of the shapes have grooves that make it look different from an opposite angle.

What is this sorcery!! you're a wizard harry!

DONT MESS WITH MY BRAIN!!!!DONT MESS WITH MY BRAIN!!!!

No wonder some people think they're beautiful when they look into a mirror "Don't trust mirrors"" XD

I'm supertired at the moment, watching this is making my head explode!!!

Kokichi Sugihara is a doctor of engineering. His specialty is Mathematical Engineering.

timmy timmy timmy turner

*phones the Vatican* Hello, could you put me through to the Inquisition department, please? Yes, it's an emergency.

We did it, we found the shape of Bluey characters.

*Should also be Finalist of the Best Music of the Year Contest 2016*

What kind of Shia Labeouf is this?

А если туда поставить фaлоимитaтop, то отобразится искуcственная вaгинa.

I'm laughing my ass of how some of the comments are blaming CGI or green screen! :D

Wow, impressive Kokichi!

They didn't teach me this in Hogwarts??

Ok, for everyone whose mind is about to blow, just google some 3D art, and you'll be able to figure how they do the shapechanging trick (here's a tip: If you change the angle of the camera it doesn't work).

They are actually Round, but the Round pieces of tubes have a certain lenght that makes them look like retangles from one and like circles from the other direction

Its legit, if you notice the triangle shaped shadows on the mirror's reflection , its just you can't see the rough edges due to the camera angles and lighting

We need vsauce to explain this shit!

I can't believe people are jumping on the 'cgi' bandwagon so easily. It's shown in the video how it's done. It's not cgi, it's how they've been sculpted on the top. Damm good illusion though.

It's already green screened...I expect silly video effects in the reddit comments

i think i got it, the "mirror" is actually a video of him doing it previously. and the bottom ones are him mimic-ing the movements with different pieces. if you watch his hands and shadows very carefully youll see that they down match up perfectly. hes essentially recorded himself and painstakingly recreating it with different objects for the illusion. its well done but not perfect as when he tries to recreate the subtle movements of his hand from the video you can see variations he cant simply account for. nicely done

Вот шайтан!

Proof that the earth is flat!

The way this works is that the tops of the objects are not flat. Very clever, though I bet a computer was needed to work out all the angles and shapes to this precision. These look like objects that came out of a 3D printer, in fact.

Mindblown.

Its not a mirror, its just two guys and two types of objects :)

I don't buy this bullshit, It is obviously a paid actor.

It looks like the illusion is created primarily by the curvature of the inside wall of the tubes. I think the actual shape of these things in your hand is mostly like what you see midway through the "spin" when he rotates the object. Depending on what side you view from, and due to the inner wall of the tube and a cut out angle/slope of the top of the tube, a viewer will see either a circular object or a squared off object. This is just a guess, but regardless, I think the key to understanding the illusion is to observe how it transforms when rotated.

Simple and brilliant.

There is no mirror. It's simple another man. Motion is slightly distorted, shadows are the same.

Photoshop

That's some incredible CGI!

Professor Kokichi Sugihara would be a nice guy if he would share this files with us. So we can 3D print it at home.

I thought this illusion that everyone was raving about would be hard to decipher... It's nothing more than a cylinder cut with a wavy pattern on top so that the position you view the cylinders at shows a different shape based on the viewer's angle.

I have no idea what this is and it’s so freaking cool✨

This is so simple it fucking hurts... And this won! Bloody hell. You telling me that no one has not noticed the design of the items being moved! Round circles with square tops, with the mirror at the right position. Bloody hell to many sheeple!

where we can find yoko sugihara's work? the music is awesome.

Simple but awesome!

В 2016 году прошел конкурс «Лучшая иллюзия года». Одна из целей проекта - помощь в обнаружении основ иллюзорного восприятия, которое интересует офтальмологов, неврологов и художников, работающих с иллюзиями. Судьями выступают врачи и преподаватели университетов. Мероприятие проводится некоммерческой организацией Neural Correlate Society ежегодно уже 12 раз. Одним из финалистов стал японский математик Кокичи Сугихара из университета Мэйдзи, показавший фокус с геометрическими фигурами. Сугихара в своей иллюзии превратил круг в квадрат (но не только). Автор работы занял второе место. Эта неоднозначная цилиндрическая иллюзия может всерьез запутать ваш мозг. Если вы видите квадраты поверх цилиндров, в зеркале будут отражаться окружности и наоборот. В данном случае все дело в углах, под которыми мы смотрим, а у самих цилиндров неровный, а не плоский верх. emosurf.com/post/7070

For some reason, it seems like the movement in the mirror lags behind by like 1/5 of a second.

HELP! I THINK MY EYES ARE BROKEN!

It's just how they're cut and shaped, and the angle of the reflection plus the profile based on the reflection angle. Very cool though.

That's pretty cool :) They should make statue with something like this! :D

Its all about perspective kids, its all about the perspective...

how does it work ,,that is just amazing