An empty? Sounds intriguing and pretty cool, but I don't quite understand. I think Blender is getting very usable now. However, I will say this. I've been trying smoothing via catmull-clark, and I keep crashing my system when I get the numbers up towards 6 (which I'm thinking must be the max). At 1 and 2 and 3, which didn't crash the system after activating sub-d, I'm not noticing any difference in the faceting of the model. I had a bit better luck on a simpler model last night. I was able to see the mesh visably smooth, but most of my models aren't much simpler than this one, so I'm not sure how things are going to work. What methods do you guys use to antialias? I see gaussian function, but I can't see that it changes anything in the rendering, so I may not understand its purpose clearly. I could try for a bigger rendering and anti-alias by reducing the image, but that will increase render times. Just curious. Believe it or not, I'm wandering through what documentation I can, but I'm having difficulty finding answers to specific questions. Have a great day, all.