Me too. That's why I mention it so much. The more people I can send to WJS's site asking 'does it exist yet?', the better the odds are that it will... O:) The -down- side of it will be the time hit that generating the metaflow mesh (and all the collision tests) will cause on rendering an animation. Even if it works, it may bog things to the point where you have to get creative in rendering with it (possibly being forced to render the flow and immediate deflector, then the rest of the scene in a second session, then compositing them in something like Premiere or After Effects). If they can though, all that would leave would be a particle based weather system for things like rain, snow, and blowing dust, and we =would= have a world generator of incredible capability. I wish I had the twist of mind to for Python... Vue really needs the equivalent of an Ockham....