I haven't played with the toon shader yet. Having worked in the traditional animation realm all of this time, the LAST thing I want to do is emulate 2D in a 3D program! :-)

I am very intrigued as to using the toon shader as a fill light (assuming I got that right). Have you a technique for that, Mirek? If so, care to share?

At some point I intend to play with it as well. The excellent book "Stop Staring" devotes equal time to lip-synching "toon shaded" characters and the usual 3D models...