That is so cool. Drawing on a building would be so much fun.
There's a writeup about it at Graffiti Research Lab too. For some more info about how it's done, check out this post by Theo Watson with the whole story including source code.
On a semi-related note, the building they're drawing on is the KPN building in Rotterdam. It's pretty cool architecturally in its own right. The really awesome thing though is that the opposite side is a giant 22 x 41 pixel screen facing a residential district.
That is so cool. Drawing on a building would be so much fun.
There's a writeup about it at Graffiti Research Lab too. For some more info about how it's done, check out this post by Theo Watson with the whole story including source code.
On a semi-related note, the building they're drawing on is the KPN building in Rotterdam. It's pretty cool architecturally in its own right. The really awesome thing though is that the opposite side is a giant 22 x 41 pixel screen facing a residential district.