Does anyone know how to do boolean operations in Bryce 5? Specifically, I am trying to "cut" one shape out of another. I looked at the tutorial, and it said if you intersect a "positive" object with a "negative" one, the area where the neg intersects the pos will be removed; I tried this several times, but when I rendered the scene looked exactly the same as it did when both objects were neutral (ie solids). What am I doing wrong?