Last December I went to see the lightwaves exhibition in MediaCity. In this exhibition there were lots of installations that were very intriguing.
One installation that stuck in my mind was this light tree. It was a metal tree lit up with LEDs and it also lit up the floor around it. The images that showed on the floor were dependant on how people were stood on the floor, at one point it showed the life cycle of a tree.
The tree was fitted with 3 motion capture cameras. These cameras could identify the people walking around the tree, and that data would be fed into the software which would then change the floor graphics where they were stood.