Hi.

I want to do it. There are things out there, the Wiimote and many
others. But I want to do it with usb webcams or analog video input.

I see Video Capture in the Pyglet Wishlist. I'm praying for that.
But in the meantime, I have only found a VideoCapture module for
win32, that gives me a PIL image.
I need help, how can I get multiplatform video capture for python?

Theory is very easy: You have a cam that only sees infrared light, and
then you put infrared light dots in front. A black image with small
white lights. An IR-cam is easy to make at home, you have only to
remove the anti-ir filter and replace it with an only-ir filter.

The first step would be to get a list of (x,y) coords, where the
center of each light is.
Then we can start playing, depending of the number of points, we can
get:
1.- Mouse coords 2D
2.- Position 3D
3.- Position and Pan
4.- Position Pan and Tilt
5.- Position Pan Tilt and 1 "finger-mouse"

References:
http://www.youtube.com/v/Jd3-eiid-Uw&rel=1
http://www.free-track.net/english/
http://www.discovercircuits.com/H-Corner/color-neg.htm
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