Yes, it is more to do with the Shadow Catching concept that I’m going for, so that when exported using an alpha channel, it doesn’t have a white layer bouncing on it.
To answer Steve Roberts question:
I am trying to create a flying logo, of sorts and I want there to be a floor but I don’t want the floor to be visible because I have objects that I am using using a reflective technique talked about in Creative cow, Create a Reflection. But then I want my floor, to be transparent to be composited into FCP for a wipe of sorts to transition into the show. So I will look into the shadow catching as well.
Daniel Elder
Associate Producer
http://www.luminair.com