Is there a fast and easy way -- or any way, come to think of it -- to make a one-sided object two-sided? Say I've made something by subtracting stuff from a closed mesh. Now you can see inside, and that inside is invisible to Poser. Okay, I realized it will render okay, with the inside taking the color of the outside, but I'd love to be able to assign a different color to the lining. Something to do with normals, he asked cluelessly?