Water flow ?

[bernhard]

Who know's what's wrong with this ?

https://youtu.be/ornB6QitYBI

Using: Max2016
Phoenix FD: 22050_max2016_vray_30_x64_26561

File for download:
https://www.wetransfer.com/downloads...7005456/5beb6e


sent to the support team, but didn't get any feedback.

Thx for any little help,
Bernhard

[Neilg]

Is this like a puzzle and we have to figure out what's wrong?

[Paul Oblomov]

To match phx flip to anything near like water in rf of bifrost houdini naiad - you have to use at least spf5. Better 10 or smth like that. Also maybe a bit of tension and viscosity. Feels weird, but at least it starts to look like water

[Ivaylo Katev]

as paul said - increase the spf, and perhaps some tension can be added. not viscosity, this is water.

[bernhard]

I tried now multiple options... and nothing looks like a "real flow" of the water.
uff.... do I need to add Splashes, Particles, and Foam so that the behavior changes ?

Do you mind downloading my max file and setup the water "features" so that the water looks real ?
Totally lost at this point. I would be happy to download your setup and file, that shows how you made it work !!!!

A feature, I am missing:
- Why not creating a bunch of presets and water sims, that is needed all the time ?
- including scene files with specific unit setups

That would help many artists struggling in testing all the different parameters - and yes, it would save tones of time too.

Thank you so much for any little help,
and like always,
keep rocking !

[squintnic]

the comment on your youtube video about making complaint videos rather than watching tutorials is spot on!

[Ivaylo Katev]

do I need to add Splashes, Particles, and Foam so that the behavior changes

i don't think so, as i understand you need only water, and closeup splash, with low count of droplets. would be helpfull if you give us a reference video, i can give more helpful advices then.

A feature, I am missing:
- Why not creating a bunch of presets and water sims, that is needed all the time ?
- including scene files with specific unit setups

every official release includes several sample scenes with the idea to help the users to start using phoenix, but this is still nightly build, there samples are the old ones, not using the particle based liquid solver. of course we will prepare new samples, for now the forum is the place where you can get help.
just shot i nthe dark - do you need something like this in the attachment?

[bernhard]

Well... did you read my first post on this thread ?

I posted the sample video. Water should splash on a bottle.
As simple as that.

Here again the reference video plus my Audio Comments describing the issue very clearly:
https://www.youtube.com/watch?v=ornB6QitYBI


It's important that the water flow feels physically correct.
I pointed out the problem.

I also provided teh MAX2016 SCENE FILE for Download.
I saw that the link did expire. Will upload the file again.

But in general... it's nothing special.. just water splashes down from the top.. should hit the bottle... and just feel like real water splashes.
If it's the bottle, or a teapot doesn't really matter for the start.

However.. Unit Setup... 1 unit is 1cm.
And I am running all animations with 24fps.

Your shot into the dark... lol; again referring to the video I prepared for you... yes....

thank you man for any little help getting this done,
appreciate it !

[Paul Oblomov]

Can you save to max 2014 ? Just maybe I can help somehow...

[bernhard]

Here we go. Max16 is zipped... max2014 just the maxfile...

Max2016 file:
http://www.mediafire.com/download/de...Splash_002.zip


Max2014 file:
http://www.mediafire.com/download/yx...2_Max_2014.max

[flipbook]

Had a little play, got this so far.. got to move onto starting a new project though!

https://www.youtube.com/watch?v=iAJjUFhcNeI

Didn't change settings drastically, a lot higher resolution and tension.

https://www.dropbox.com/s/cr4yo2guse...tings.JPG?dl=0

[bernhard]

After continuing testing I got an official response from the Phoenix Dev Team:
"The fast flying particles issue is considered as a bug and we'll do our best to fix it as soon as possible."

That means... I'll have to wait until the bug is fixed.
Need a new nightly built I guess.

Thx a lot for your hard work .... and yes, I'll keep you posted !

[bernhard]

@Flipbook:
Thx for your test flipbook. appreciate it. Your water looks to sticky for me. But after testing, it looks like it's impossible to have a real water flow simulated at this point. At least not with the nightly built and max2016 I am running. See the feedback from the Chaosgroup Dev Team regarding a bug in the core water simulation.

[Svetlin.Nikolov]

Hey bernhard,

I wouldn't say the fast flying particles I mentioned to Support regarding the questions in your second video are an obstacle to getting a realistic water behavior with a current nightly. They will be damped by using surface tension like in flipbook's example. Real life water does have surface tension, so if surface tension of 0.7 looks too sticky to you, please try a lower value, but still not as low as 0.002 as in your second video. Please keep us posted on how your tests are going.

Cheers!