I'm NOT showing that image to bash Bryce at all. I love it for what it does, and it's helped me learn many of the basics about 3D imaging and rendering, and THEN some! But I did want to point out what's possible, in reality. If you've ever taken a high-school physics class, you'll know (for FACT) that calculations for physical interactions are ALL possible, and can ALL be calculated given enough time and energy, and "operations per second", in terms of CPU's. Political Opinion So while Bryce and DAZ are "busy" wasting our time with pathetic updates like 5.5x, many users are busy forwarding their careers and their talents with infinitely more powerful solutions. Sure, Maya was pricey and we're still paying for the licensing and mental ray stuff. Sure, nobody can just buy it out-of-pocket... End of political propoganda I guess I'm trying to say, never settle for anything, or anyone. There's always a better way, and a better tool to be had/found/created! And, barring THAT, there's always workarounds! Technical Blabber There are 2 emitters in this scene, one shooting blobbies up (which then are affected by gravity) and one spreading them across the floor. Both emitters shoot at rates of 1,000 blobbies per second. This animation is 300 frames, or 10 seconds, meaning that in this shot (frame 240) there are 16,000 metaballs in the scene. Try doing THAT in Bryce!