You know in animated shows where a shadow moves n the floor and all the walls. How would you do that? http://www.dailymotion.com/video/x2bth6v_courage-the-cowardly-dog-1021-the-shadow-of-coura ge_fun 9:53-9:56 when the shadow is on the floor moving is what I mean.
this animated series was made with a dedicated traditional animation software. in this case Toon Boom. if you want to create a shadow in Ae you can either faking it with a 2d perspective effect such as CC Slant, or use a more complex setup with lights, shadows and shadow catchers with 3d layers.
I have toon boom too. Do you know how I would do it in toon boom?
The best way would be to ask on Toon Boom support/users forum.