I've spent the morning playing with ARToolKit and the port for processing NyARToolKit and I was struggling with the lighting conditions. After going through all the hoops of calibrating my camera, etc?, I was wondering how you could use Augmented Reality in the dark. So I took my good old 8×8 matrix pseudo shield, wrote 2/3 additional lines of code to my do-everything sketch, and I had a nice little “marker” made of light.
(Not so much infos here : http://melka.one.free.fr/blog/?p=233 )
k thx baï