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Upcoming feature: multifluid interaction!

25 Comments Published by Bart on December 27th, 2009 in Development

Farsthary writes:

I don’t know if it’s the same for you, but since the incredible inclusion of the Elbeem fluid simulator in Blender I track every release trying to make this simple set up: mixing realistically a red fluid with a blue one, sadly without success.

My ignorance about CFD (Computational Fluid Dynamics) at that time prevented me to know that for Euler based methods (array based, domain based) this is not straightfoward to implement multiple fluid interactions of fully different natures (different density,viscosity,elasticity,plasticity,materials,etc), so one of my initial targets when I started (and later joined Stephen) in the SPH fluid particles was to overcome that limitation since one of the strongest point of SPH methods is the ability to handle in a transparent way any kind of interactions and that will make a nice family of use cases different from the Elbeem fluid simulator.

Link

Killer feature – Multifluid interactions at last in Blender!!!

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25 Responses to “Upcoming feature: multifluid interaction!”

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1 Inlite Dec 27th, 2009 at 12:37 pm

Ok, now THATS cool. Ive only just started playing with fluid sims and its already getting better and better!! Thankyou so much for your work on this project :D
2 yoff Dec 27th, 2009 at 12:52 pm

Looks interesting :-)
3 rednelb Dec 27th, 2009 at 12:58 pm

OH, WOW!! That looks great – some time ago this was not even possible. Thanks for the hard work!
4 deee Dec 27th, 2009 at 1:18 pm

Farsthary always pushing the envelope for high-end features!

Thanks and congrats!
5 RNS Dec 27th, 2009 at 2:38 pm

let see it in final rendering.and than we celebrate.
6 txrx Dec 27th, 2009 at 3:48 pm

Farsthary, you rock buddy!! Awesome work!
7 sinistar Dec 27th, 2009 at 5:32 pm

Cool! :)
8 ccherrett Dec 27th, 2009 at 8:29 pm

RNS,

No thanks man I choose to celebrate now.

Great job!
9 RH2 Dec 27th, 2009 at 9:10 pm

awesome stuff :D
10 Kory Prince Dec 27th, 2009 at 11:18 pm

@Bart,
You posted the video that doesn’t actually mix the fluids… :)
This one does:
http://vimeo.com/8375353
Kory
11 Fire Angel Dec 28th, 2009 at 3:20 am

This is amazing work, I look forward to having a faster computer so I can play with features like this. My favourite of the three videos is the one that shows the partial mixing, because that’s the one most like real oil/water interactions and the one that could generate the most colourful interactions if you worked at setting it up.

Keep it up, this is superb.
12 Farsthary Dec 28th, 2009 at 5:20 am

Hi guys!

thanks a lot! I have updated my site with new videos, this time a wide variety of effects, hope you like them :)

cheers Farsthary
13 TonyM Dec 28th, 2009 at 6:02 am

Let’s celebrate now and then celebrate again when we render it!

Thanks for your efforts Farsthary!
14 Aden Dec 28th, 2009 at 6:19 am

Whoa whoa wait what? Is Blender fluidsim going particle-based now? The videos reminded me of RealFlow.
15 FishB8 Dec 28th, 2009 at 8:50 am

@Aden:

The algorithm that Farsthary is developing is based on particle calculations. It would be in addition to rather than in place of the current fluid sim. Each method has some very distinct advantages over the other. So which one you would use would depend on what you are trying to do.

@RNS

There is no means to do that (yet) Farsthary hasn’t written the code yet to take the particle based fluid data and translate that into a rendered output. What he’s already done is the hard part though.
16 3pointedit Dec 28th, 2009 at 9:03 am

Great effects, love the psuedo life video. What system will be used to generate a surface or volume? Will we be able to add a turbulent noise to vary the apparent size of the volume(as with smoke)?
17 Davis Dec 28th, 2009 at 9:37 am

This is awesome! I’ve been waiting for this. :D
18 Drew Dec 28th, 2009 at 9:41 am

simply amazing.

Progressive in just the right way!

I’ve found myself wanting to do just this…and have found fun using cloth with a glass material instead…but this…THIS,

is truly inspiring.

Please, for the love of creation, keep this going.

*bows in humble programming ignorance*
19 Ippo Dec 28th, 2009 at 10:24 am

Nice feature! But who will use it more than one time in his life??
Thats the weakness in Blenders developement:
More and more features which never will displace special software like Realflow (because of it’s complexity)!
On the other hand logical workflows and UI-doings are still missing in Blender.
There are still two node system for texture and material, skulpt-brushes on the right loaded and on the left are the sculpt-parameter, no fbx-import and so on!!
Please think about the very important things!
20 MmAaXx Dec 28th, 2009 at 10:43 am

@ippo

this feature is comes not from blender foundation, but from a single developer…

AWESOME useful feature for me :D
21 txrx Dec 28th, 2009 at 6:24 pm

Really excited about this.

Any builds about to play with just yet?

(aka is it on Graphicall or in the SVN?)
22 Minifig Dec 28th, 2009 at 6:49 pm

Woot!
Where can we get it?
23 jacob Dec 28th, 2009 at 8:49 pm

HOLY CRAP! i was just trying to do that yesterday!!!
24 mamoru Dec 29th, 2009 at 6:46 am

Looks fantastic, looking forward to playing around with this at some point.
Thanks Farsthary!
25 cmw Dec 29th, 2009 at 6:49 pm

Amazing!

I hope this makes it in to an official version of Blender someday …

Upcoming feature: multifluid interaction!

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