In Episode 2 of Prototype This!, Joe Grand and Zoz Brooks used a library called ARToolKit to track the motion of a player in order to control a robot relative to the player’s body movement.
ARToolKit uses what Prototype This! calls optical glyph tracking, where the library will scour a live video feed for a particular glyph that it can recognise, and determine the location of the point relative to the camera.
The ARToolKit examples that ship with the source can project a 3D object off your glyph:
That’s my hand holding a piece of paper with a glyph that I printed out. ARToolKit is projecting the cube off the glyph.
All I need now is to model Princess Leia in VRML and say “Obi-Wan, you’re my only hope!”



pretty cool, i`ve been trying to, but i can`t get artoolkit working, can you help with a site or tips?
If you told me about your problem I might be able to help you.
i don`t really know what to install and download.
You can download the file for your platform from the download page.
I should mention that ARToolKit is not designed for non-technical people to set up. If you can’t figure out the downloading part by yourself then there is not a chance you will be able to set the rest of it up. (I am happy to answer constructive questions, but I am not happy to teach skills you could learn or figure out yourself.)
yeah thanx…I have the awnser now, And i`m not a non-technical because i`ve a lot programming experience in Delphi and PHP(SQL)
thanx marijn
Sorry, it just didn’t come across that way. It’s cool that you do Delphi — I did a lot of Delphi until I was 14 or so. Very fun.
And from then, I’ve done mostly PHP since then.
So did you get ARToolKit working?
I get it pretty good working, and its pretty funny what you say, i`m 15 years old right now…lol
grtz marijn