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View Full Version : Fluid as field for particles - how to set magnitude?

StefanAlbertz
11-25-2008, 04:00 PM
This is the first time iīm using a fluid container as field for particles. I lowered my particles conserve to 0.3 just to keep them stick to the fluid motion which works fine. For my effect i need them a bit more "loose", just being pushed a bit by the fluid motion and not fully dragged by it. On a standard field, i would lower the fields magnitude, but after checking through all the attributes of the fluid, i donīt find one that would allow me something like this. I missed it for sure - could anyone help me on this?


(besides: using the fluid container like this is simply awesome - such nice and rich particle movement can only be done by some bigger multiple turbulence field setup. Really a nice addition)
Aikiman
11-25-2008, 06:40 PM
Depends on what type of force is giving you the velocity vectors. It is most likely the bouyency on your density attribute. You can always hook up a field to your fluid and get velocity that way if you like and make bouyency zero, up to you.
StefanAlbertz
11-25-2008, 10:52 PM
Depends on what type of force is giving you the velocity vectors. It is most likely the bouyency on your density attribute. You can always hook up a field to your fluid and get velocity that way if you like and make bouyency zero, up to you.

no this isnīt what i meant - the fluid itself does good motion, as i want it to do. but using it as a field for my particles (the fluid driving the motion of the particles) i would like the dependency a bit more loose (like pushing the particles but not with full fluid drag .. just a bit). Somehow like a drag field with not too much magnitude.
Iīm using that fluid to get the swirling motion effect that only fluid has - much better field than a simple turbulence
Aikiman
11-25-2008, 11:08 PM
no this isnīt what i meant - the fluid itself does good motion, as i want it to do. but using it as a field for my particles (the fluid driving the motion of the particles) i would like the dependency a bit more loose (like pushing the particles but not with full fluid drag .. just a bit). Somehow like a drag field with not too much magnitude.
Iīm using that fluid to get the swirling motion effect that only fluid has - much better field than a simple turbulence

Are you saying that you like the fluid motion but not liking the underwater slowmotion effect that comes with it? Maybe increase the simulation rate scale will help you. What are you using to make your velocity?
StefanAlbertz
11-26-2008, 10:31 AM
Are you saying that you like the fluid motion but not liking the underwater slowmotion effect that comes with it? Maybe increase the simulation rate scale will help you. What are you using to make your velocity?

The fluid container is ok as it is. What i need is that the container has not that much influence (better: controllable influence) on my particles. They are currently in complete control by the fluids, but i have other fields that should control them too. In short word, i would need a magnitude slider on the fluid-field ;)
ChaosBlackMagician
11-26-2008, 01:49 PM
that slider is the conserve of the particles.
if you decrease it, the particles will flow perfectly along the vectors of the fluid.
If you increase it, it will still "loosely" partake in the fluids direction as well as other included fields inside or outside of your fluid container.
gl
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