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3D / 2D Illusion

Optical Illusions and Eye Tricks

View the image below:

bumps illusion

You are likely to see that the top row of circles appear as "bumps" followed by "holes" and so on in an alternating pattern.

Can you try and see the opposite? Have a good hard look and try to see the first row as holes and the second as bumps. Difficult?

Now hide the bottom row of circles from your field of vision (either with your hand, or scrolling your browser window appropriatly). Is it easier to see the first row as holes now?

More Optical Illusions:

shape illusion escher stairs escher elephant color word trick bump illusion mystery shape trick movement illusion wave illusion soothing illusion rotating warp illusion bent circles illusion impossible shapes optical art vanish light rings illusion eyes optical illusion twisted blobs illusion in out illusion swelling illusion flag illusion spins illusion grid illusion

 

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All comments
By: sarah - August 15th 2008  
this doesnt work b/c the lighter part of the circles are in different spots on the circles the 1st row the light spot is at the top and the light spot on the second row is on the bottom and vis versa
By: Trixter - July 25th 2008  
Nope its easy as pie. this one doesn't work.
By: :P - June 23rd 2008  
They shadow them differntly
By: mamma419 - January 25th 2008  
if you look at the add under the directions its for bumps on penis?? I dont think I came here to find info on that??? lol
By: Charlotte - October 20th 2007  
me dont get it. me sad. me cry! oh well, :¦
By: weeee - November 03rd 2006  
its like a lego!
By: Omnichaotic - October 22nd 2006  
i saw it backwards to begin with... though it kept switching on me after :( I was imagining a kid climbing a hill and sliding down it into holes :-P
By: White_ninja - October 20th 2006  
No t really!
By: kerry - August 20th 2006  
All because of the light drawn on the 'holes' and 'bumps' is what makes them appesr like that!!
By: kerry - August 20th 2006  
U know, just save da pic, open it as a pic, click rotate right, then again hide the top row which USED TO BE the bottom row and the holes have become bumps!!!
LOL
By: PINKY - August 16th 2006  
nfzkudgh -plz dun say such rude things
By: pinky - August 14th 2006  
it doesnt work!!
By: jAyRgwapo2684 - August 11th 2006  
nice 0ne hahahah!
By: blah - August 06th 2006  
well duh its juust blah!
By: boxy - June 10th 2006  
the different shades of the circles give it away its just circles on a square
By: DANO - May 13th 2006  
if u tilt your head to the right and stare at it for 5 seconds u can c the second row as bumps. cool uh? all about OAK CLIFF DALLAS TEXAS!!!
By: doodi - May 08th 2006  
I like eggs with bacon. YUM
By: brittany - May 08th 2006  
this one isn't that hard its just the white part of it that makes it looks like holes and bumps
By: Amy - May 08th 2006  
omg it turns into a pizza!!!!!!!!!!!!!
By: Paranormal Wolf - April 16th 2006  
They kind of remind me of those pill-holder things...And if you turn your head upside-down, they reverse in which way they look. (The in ones look like theyre out and vice-versa)
By: Denise E lockhart, ohio - April 08th 2006  
too hard the way they shade it!!!
By: tnj - April 05th 2006  
oh btw, i cant do it as they ask..huhuhu how stupid i am...
By: tnj - April 05th 2006  
whitey101 is right. and if you're using laptop, just turn it upside-down and you'll see the top row will be the holes. :p hehe
By: dolfin gal - March 25th 2006  
that is my fav illusion
By: whitey101 - February 22nd 2006  
its very simple actually the way they shade the circles is how they create the illusion. look at where the white area is.
By: ANGELA - February 11th 2006  
wow thats pretty cool! if you put your face close to the screen and then slowly move your head away, it feels like the bumps are following you!
By: Well Travled Roxi - February 01st 2006  
It is too easy for me.
When I first see this I see holes on top.
Instead of bumps. But I can see either.
As I said.. its to easy. but its pretty cool.
By: Amy - January 24th 2006  
This site is very intriguing.I like the way the illusions are lop-sided and extrordinary!
Love u all,Amy
By: Kyo - January 19th 2006  
gah!! i had to turn my head to the side for it to work! D:< I hate this
By: Carol - December 29th 2005  
Whoooooo ps! What I wrote in the bottom was the opposite. 1 row, out, 2 row, in, 3 row out, 4 row in, 5 row out. Just correcting so you don't get confused! :P
By: Carol - December 29th 2005  
First row sticks in, second row sticks out. Third row sticks in, fourth row stick out, fifth row sticks in.
By: steph - December 24th 2005  
turn ur head 2 the side then u can see it
By: Kan1990 - November 30th 2005  
This is cool!! So cool!
Yes I can see the holes on top!
And the bumps on top!
By: Pip - November 09th 2005  
turn it upside down
By: johnzy - October 31st 2005  
weird one..
By: Sarah - October 23rd 2005  
yay i can do it i can make the top row look like holes yayayayayayayayayayay!!(i1m normally really bad at this stuff
By: eljo - September 19th 2005  
vry nice illusions
By: maniac - July 20th 2005  
if those circles werent hiding in my closet now, id thank the creater of that illusion for relaxing me. too bad.
By: Linda - May 20th 2005  
The key I found was to relax your eyes. Great exercise to focus and relax.Thanks!
By: Elkdog - May 01st 2005  
Its a bit tougher picturing the sunken in dots than the buldging out dots because the human mind is used to light sources coming from above.
By: jatinder - March 07th 2005  
move the light source from the top left corner
to the bottom right corner and visualise the bottom row as 'holes' and then move up alternating between holes and bumps
By: bubbles - February 28th 2005  
cant do it aaaaaaaaahhhhhhhhh
By: Jack - February 10th 2005  
It's about lighting. If you put a lamp next to this, the light would hit the top of the top row, which is why there's white. But the second row, if it's a hole, it would hit the bottom,which is whi
By: Anon - February 09th 2005  
Thats an easy one
By: Chris - January 23rd 2005  
OK..This is weird...
By: sarah - August 15th 2008  
this doesnt work b/c the lighter part of the circles are in different spots on the circles the 1st row the light spot is at the top and the light spot on the second row is on the bottom and vis versa
By: Trixter - July 25th 2008  
Nope its easy as pie. this one doesn't work.
By: :P - June 23rd 2008  
They shadow them differntly
By: mamma419 - January 25th 2008  
if you look at the add under the directions its for bumps on penis?? I dont think I came here to find info on that??? lol
By: Charlotte - October 20th 2007  
me dont get it. me sad. me cry! oh well, :¦
By: weeee - November 03rd 2006  
its like a lego!
By: Omnichaotic - October 22nd 2006  
i saw it backwards to begin with... though it kept switching on me after :( I was imagining a kid climbing a hill and sliding down it into holes :-P
By: White_ninja - October 20th 2006  
No t really!
By: kerry - August 20th 2006  
All because of the light drawn on the 'holes' and 'bumps' is what makes them appesr like that!!
By: kerry - August 20th 2006  
U know, just save da pic, open it as a pic, click rotate right, then again hide the top row which USED TO BE the bottom row and the holes have become bumps!!!
LOL
By: PINKY - August 16th 2006  
nfzkudgh -plz dun say such rude things
By: pinky - August 14th 2006  
it doesnt work!!
By: jAyRgwapo2684 - August 11th 2006  
nice 0ne hahahah!
By: blah - August 06th 2006  
well duh its juust blah!
By: boxy - June 10th 2006  
the different shades of the circles give it away its just circles on a square
By: DANO - May 13th 2006  
if u tilt your head to the right and stare at it for 5 seconds u can c the second row as bumps. cool uh? all about OAK CLIFF DALLAS TEXAS!!!
By: doodi - May 08th 2006  
I like eggs with bacon. YUM
By: brittany - May 08th 2006  
this one isn't that hard its just the white part of it that makes it looks like holes and bumps
By: Amy - May 08th 2006  
omg it turns into a pizza!!!!!!!!!!!!!
By: Paranormal Wolf - April 16th 2006  
They kind of remind me of those pill-holder things...And if you turn your head upside-down, they reverse in which way they look. (The in ones look like theyre out and vice-versa)
By: Denise E lockhart, ohio - April 08th 2006  
too hard the way they shade it!!!
By: tnj - April 05th 2006  
oh btw, i cant do it as they ask..huhuhu how stupid i am...
By: tnj - April 05th 2006  
whitey101 is right. and if you're using laptop, just turn it upside-down and you'll see the top row will be the holes. :p hehe
By: dolfin gal - March 25th 2006  
that is my fav illusion
By: whitey101 - February 22nd 2006  
its very simple actually the way they shade the circles is how they create the illusion. look at where the white area is.
By: ANGELA - February 11th 2006  
wow thats pretty cool! if you put your face close to the screen and then slowly move your head away, it feels like the bumps are following you!
By: Well Travled Roxi - February 01st 2006  
It is too easy for me.
When I first see this I see holes on top.
Instead of bumps. But I can see either.
As I said.. its to easy. but its pretty cool.
By: Amy - January 24th 2006  
This site is very intriguing.I like the way the illusions are lop-sided and extrordinary!
Love u all,Amy
By: Kyo - January 19th 2006  
gah!! i had to turn my head to the side for it to work! D:< I hate this
By: Carol - December 29th 2005  
Whoooooo ps! What I wrote in the bottom was the opposite. 1 row, out, 2 row, in, 3 row out, 4 row in, 5 row out. Just correcting so you don't get confused! :P
By: Carol - December 29th 2005  
First row sticks in, second row sticks out. Third row sticks in, fourth row stick out, fifth row sticks in.
By: steph - December 24th 2005  
turn ur head 2 the side then u can see it
By: Kan1990 - November 30th 2005  
This is cool!! So cool!
Yes I can see the holes on top!
And the bumps on top!
By: Pip - November 09th 2005  
turn it upside down
By: johnzy - October 31st 2005  
weird one..
By: Sarah - October 23rd 2005  
yay i can do it i can make the top row look like holes yayayayayayayayayayay!!(i1m normally really bad at this stuff
By: eljo - September 19th 2005  
vry nice illusions
By: maniac - July 20th 2005  
if those circles werent hiding in my closet now, id thank the creater of that illusion for relaxing me. too bad.
By: Linda - May 20th 2005  
The key I found was to relax your eyes. Great exercise to focus and relax.Thanks!
By: Elkdog - May 01st 2005  
Its a bit tougher picturing the sunken in dots than the buldging out dots because the human mind is used to light sources coming from above.
By: jatinder - March 07th 2005  
move the light source from the top left corner
to the bottom right corner and visualise the bottom row as 'holes' and then move up alternating between holes and bumps
By: bubbles - February 28th 2005  
cant do it aaaaaaaaahhhhhhhhh
By: Jack - February 10th 2005  
It's about lighting. If you put a lamp next to this, the light would hit the top of the top row, which is why there's white. But the second row, if it's a hole, it would hit the bottom,which is whi
By: Anon - February 09th 2005  
Thats an easy one
By: Chris - January 23rd 2005  
OK..This is weird...
By: Blifaloo - January 07th 2005  
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