Hello,

Video:
http://youtu.be/ui6j-j1jXcE

From one angle everything looks perfectly normally until you see the balls rolling uphill. When you change the angle
of the camera you see that the roof are not as they appeared.

Template:

Last edited by anri1 at May 16, 2014,
Pretty cool man.
That's some pretty cool stuff you got goin' on there.
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Like the club tie, and the firm handshake,
A certain look in the eye and an easy smile.'

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So that when they turn their backs on you,
You'll get the chance to put the knife in.'
Was it mathematicaly worked out or was it worked out by trial and error?
It is not mathematically. I tried many times and I had many errors. I worked on that about five days. On the end I am done.

Sorry of my english.
Cool you made a house, but can you live in it?
Quote by KingChris90
Cool you made a house, but can you live in it?

What is this, an illusion for ANTS?!
Quote by SlackerBabbath
Was it mathematicaly worked out or was it worked out by trial and error?

if you're familiar with some basic linear algebra then the mathematics for perspective is pretty simple. idk about deriving this illusion though. if i feel compelled i might write up a solution.
i don't know why i feel so dry
That's pretty sweet. For some reason it reminds me of these awesome ground illusion paintings I see on facebook a lot now, like this one:

Quote by Hardlycore
That's pretty sweet. For some reason it reminds me of these awesome ground illusion paintings I see on facebook a lot now, like this one:

That's because it works in a very similar way. It relies on one parrticular perspective to see the illusion.
Quote by SlackerBabbath
That's because it works in a very similar way. It relies on one parrticular perspective to see the illusion.

I'm just appalled that people can nail that angle so well though. Like, I can't imagine creating one from the start.
Dino fun.

That...was actually really cool. I want to make one of those now.
Quote by Hardlycore
I'm just appalled that people can nail that angle so well though. Like, I can't imagine creating one from the start.

It's actualy pretty easy.
People who create that kind of street art, (Julian Beever is probably the best known for it) use a projection technique called 'anamorphosis' to achieve it.
Quote by SlackerBabbath
It's actualy pretty easy.
People who create that kind of street art, (Julian Beever is probably the best known for it) use a projection technique called 'anamorphosis' to achieve it.

It's easy if your talented and practiced for years to be able to paint like that... xD
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Epiphone Goth G-400 SG
Line 6 Spider IV (Don't judge me, I was young and stupid)
Stagg SW203N
Yamaha APX500
Quote by BjarnedeGraaf
It's easy if your talented and practiced for years to be able to paint like that... xD

If you can trace an image, then you can create that kind of art using a projector.
Quote by SlackerBabbath
If you can trace an image, then you can create that kind of art using a projector.

Yeah, this is how I'd do it.

Project the image from the POV you want to end up with on any non-flat surface and just paint over what's projected.
I doubt that's how street artists do it, but it would be pretty easy.