Willber, I agree, the ball does kind of look like the back side shining through to the front. I think it has a lot to do with the gray line across the top, even though I'm not sure where it came from! Stewer, your image is the ideal illustration of this concept. That looks just like you would expect a sheet or something to look in that situation. I could see myself using this technique on curtains, trees, and yes... stained glass windows! And all it took was plugging a diffuse node into the translucence color channel. Very interesting. Did you use ray traced or depth mapped shadows for that image, by the way? The Poser manual says that translucence is "the color of the light passing through the object." That's about all it says! I don't know how you folks figured it out, but I would not have guessed. There are a lot of things in the Poser manual that get this minimalist (or copy and paste) description. Oh well!