Action Script: Drawing on video

Question

I was wondering how to draw over a video like this.

http://www.bannerblog.com.au/2009/06/burger_king_sharpie.php

Answer 1

I'm not sure that in the example is drawing process over video. As for me It's a 3d model with video background. And you could sync prerecorded states with 3d object transformations (position, rotation, mesh transformations), or create well textured object.

Here for your tutorial how to draw over the 3D objects

Answer 2

Easy! Use Adobe After Effects (or any number of other compositing programs).