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View Full Version : Sloshing in Glass?


nickej
10-16-2003, 09:12 PM
I'm trying to do the hypervoxels-water-sloshing-in-a-glass trick, and while I've gotten it to work (I think), it seems glacially slow to calculate. I've got a dual-AMD 2200 and a gig of RAM, and it's well into taking several days to calculate anything over a hundred or so particles. Part of it seemed to be the sub-d object they were sloshing in, but even in a cube, they aren't exactly zippy. Not casting aspersions or starting a flame war or anything, but I did see Maya handle a similar type scene, on a slower machine, with near-real-time speed. I figure I must be doing something wrong, 'cause I can't imagine the difference is that great.....

VWTornado
10-17-2003, 12:35 PM
I've tried using Motion Designer and HVs before and both are really slow at calculating there respective areas. I've also had a chance to play with Maya 4.5 Unlimited and the dynamics and particles in that were MUCH faster. I hope LW [8] takes care of those issues...or at least speeds them up quite a bit. Motion Designer is so tedious and slow I don't even bother with it.

InsomniacZx
10-20-2003, 10:42 PM
have you increased your multithread to 8? I found in some rendering conditions, I could get 40mins+ improvement over 2 multithread renderings.

nickej
10-21-2003, 06:32 AM
I've got a dual-processor machine, so I generally work at 4 threads, but I'll see whether 8 does anything for me. I've got a decent simulation going, but only by dint of using the sphere object, rather than the glass I'd made in modeller, and by using voxels that are about twice the size I wanted....

HowardM
10-21-2003, 09:09 AM
hmm, how much sloshing is needed?

MD isnt slow once you get the right settings...
try throwing THIS (http://vbulletin.newtek.com/showthread.php?s=&threadid=5812&highlight=taffy) MD water into a MD glass (make it fixed) and see if this could work to get the overall mass of water sloshing around, then you could add emitters to do some splashing....