View Full Version : Fluid Jitters

06 June 2008, 12:34 PM
I've got a still cloud thats effected by something flying thru it.
So I animated a radial field and a turb thru the fluid.
But I'm getting weird jittering in my fluids.
Any help or advise you guys could offer would be golden
I uploaded a small .mov of the problem

06 June 2008, 05:18 PM
It could be that the fluid is becoming unstable in the region of fast moving clouds. This is particularily a problem if you use highDetailSolve(also if you have lots of swirl). One solution is to cache with oversample... this makes the timestep smaller(if you are forced to use cache per frame you could instead temporarily change the frame rate, then set it back when done). However you might also try a little damp, or as well disabling highDetailSolve.

Making the opacity graph smoother with less of a cutoff will also help hide the problem, but would perhaps make the look too soft.


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06 June 2008, 05:18 PM
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