I want to create a mountain with a shape kinda cut out of it (in Bryce3d or Bryce4). I tried to make the shape negative and a mountain positive, but it does not "deduct" the shape out of the mountain. I tried to do it with just shapes, like cubes, balls, etc. It just does not work. Also I wonder if its possible to make mountain filled inside (not empty). Please, help me, I've spent like 10 days trying to learn the prog, cant find this anywhere. I'm giving all the points I've got after filling out all questionnaires, etc. Please reply ASAP. Thanks in advance.