[neppo]

Many years ago I did a just for fun project with vvvv, a virtual graffiti wall.

This involved a webcam that captured the graffiti input in form of infrared beacons and two outputs that were projected onto large projector screens - one for drawing and one to show the resulting grafitti to spectators.

I've been a text based coder all my life and had no experience with graphical programming before, but the ease of use and stability of vvvv was just incredible.

I would encourage anyone to try it.