From rthorvald's tutorial this is what I'm talking about.
2. Fill the hole under your top mesh!
Make sure the normals of the bottom point outwards. This we do
to minimize depht-sorting issues in Celestia.
![Image](http://www.celestialmatters.org/users/monalisa/images/meshfill.jpg)
How do you fill a mesh like that? I've been trying to figure out how to do this in anim8tor for a long time but with no luck. I tried the "fill hole" feature but the rules on being able to do this are so restrictive that it's impossible to do it on the bottom of a complex mesh such as a mountain or hill. Does anybody know how to fill the base of mesh?
![Question :?:](./images/smilies/icon_question.gif)