I've never used culling, I didn't know it would make a difference, I am interested what you find.
There is also occlusion culling from ancient times, also I've never used it. But it's possible it will make your SWF slower because of more calculations. See the 5 or 6th slide in this demo: http://away.kiev.ua/away3d/techdemos/engine/ -Pete -- ___________________ Actionscript 3.0 Flash 3D Graphics Engine HTTP://AWAY3D.COM
