Laser Graffiti - WICKED

Yeah, this 'might' already have been posted but for some reason searching takes over 30min...
so, 'eh.

http://au.youtube.com/watch?v=DKbtTPYZEig

what i want to know is how powerful that laser is, it's so fat and bright. and they seem to just 'show up', isnt that a but dangerous for anyone in the buildings who look out the window... or teh reflections off the windows into the croud.

plus, its awesome how it even has the dripping paint... and wate man, how do they get the green laser to act as the pen. i have seen projectors that can project on a screen and draw when you touch the screen. but i dont know aobut this...

This has been posted a thousand times but i'l quickly explain it for you.

Equipment :
Average green laser
Camera connected to computer
Computer
Very good projector

How it works:
The projector is set up so it is shining onto the building, The computer has a special program on it so that when it sees the green dot on the camera it will project it up onto the building in the exact same location, hence the look of painting it on.

There was a website somewhere which explained it all in detail and you could even download the software to do it yourself.

Hope this helps a bit

check out my web site under other i think, details are there

Good video indeed. I saw it a while back.

so is it a laser projector or is it a normal pc projector??
scanner... :-?

the projector does not use a laser. it uses RGB bulbs in combination to make different colors of light.

they are not shinning massive lasers on the buildings, just small 30mW ones (or whatever power those are)

sk8er4514 said:

the projector does not use a laser. it uses RGB bulbs in combination to make different colors of light.

they are not shinning massive lasers on the buildings, just small 30mW ones (or whatever power those are)

Click to expand...

Nah they just use a single bulb, which is split up into 3 beams, projected through red green and blue colour filters, and sent through tiny little LCD screens, then recombined with a beam cube.

And yes, they use a laser pointer to guide just a normal PC projector.

Thats awesome!

Never seen that before, cheers for the link.

Went and brought a massive projector after seing this., gonna tag the city tonite. ;D