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creating spitlike slime

Posted: Thu Jan 25, 2018 1:47 pm
by BaumschulenElrik
Hi,
my name is erik and I'm new to realflow, so sorry for potentially asking dumb questions. My goal is to create spit or slime, flowing out of an animated mesh that tracks my characters jaw. I've come across two difficulties and figured asking someone with expertise could be the best way, since reading the manual didn't quite help.

1. I read that Dyverso is normally the way to go when creating small scale simulations (inflow object is thin walled and ~30x20x10cm)

My Problem is that slime needs to have a rather high viscosity and foremost a low entrance speed. Unfortunately the "speed" value in the emitter settings for dyverso controls normal inflow velocity and particle rate at the same time. Lowering it resulted in chunks of fluid spawning with visible gaps. Is there a settings value I missed to avoid that and increase the "spawnrate" (comparable to the "stream" option for hybrido)? Which particle type is suited best to create cohesive streams of sticky fluid anyway?

2. My second question regards object tracking. I figuered that it would be handy to have certain bounded forcefields following my emitter object.

Is there a way to track object position automatically and make my forcefield stay with it? The object is an alembic import, so I can't copy a position curve from it.

I'm grateful for any help. Hope you can turn my :?: into :idea: without too much :shock:, :roll: or :twisted:

Re: creating spitlike slime

Posted: Fri Jan 26, 2018 12:05 pm
by ChriFF
Hi ;)

2) Yes, it's possible: select the force field and in the same "Node" window where you set the Position/Rotation/Scale etc, there is a button "Parent to" right below the "Pivot" settings... Parent it to the alembic object, then set the Position to 0 0 0 or move it wherever you want...

1) Yes, it's an annoying bahviour....You could try to parent a bounded and very strong drag force to the emitter.

Re: creating spitlike slime

Posted: Fri Jan 26, 2018 7:35 pm
by BaumschulenElrik
Thanks so much for your answer, ChriFF, you helped me an awful lot.

I actually had the very same idea of using drag but stumbled about the tracking issue. :lol: It still seems to be difficult to actually make the fluid stick together but the results are much better now. If anyone else has tips or practical advice on slimy fluids I'm obviously happy to hear them. Elsewise I consinder my qustions answered^^