I'm trying to create a cave like structure using a normal mountain-like terrain and a lattice made negative. For some reason nothing will ever show up negative. I've tried several different models. Is there something that I'm doing wrong? I have a terrian, I create a lattice that intersects the side of the terrain, and in the attributes options, select it as a negative. Thus, it should cut a "hole" in the side of the terrain, shouldn't it? Please, any help would be greatly appreciated.