White water problems

[kruasan05]

Hi guys!

How to make the particles are only on the surface as in this example .

 

 

In my case most of the particles are under water . 
https://dl.dropbox.com/s/o1j4oqns3wdt3l7/Снимок7777.PNG?dl=0
It bubbles, but in the example they are all on the surface
https://dl.dropbox.com/s/6vffkjuv3xyzxfk/Снимок123654.PNG?dl=0
which the author uses to do so. 
I cuts flipsurface, by bounding volume for top surface field, but most of the particles is still under water . 
Foam is not enough. I need more foam above the surface.

Edited July 18, 2016 by kruasan05

[cudarsjanis]

You can check this tutorial.

http://www.cgsociety.org/training/course/fluids-fx-using-houdini

 

Following this tutorial You can add extra foam with using vops.

 

Also you can increase buoyancy in Y for bubbles, so they reach surface faster and turn into foam.

[kruasan05]

19 hours ago, cudarsjanis said:

You can check this tutorial.

http://www.cgsociety.org/training/course/fluids-fx-using-houdini

 

Following this tutorial You can add extra foam with using vops.

 

Also you can increase buoyancy in Y for bubbles, so they reach surface faster and turn into foam.

Thank you very much Janis.

[cudarsjanis]

Also what I did once, I just wrote out .bgeo with all particles and before rendering used transform to lift it up on y axes a bit. Also one way to fake it a bit.

Shame that for getting more foam if you increase particle count, you get more bubbles as well. and I got to a point where my system couldn`t handle it. and crashed. cant afford 64 Gb RAM, That`s why I used this vops for adding foam. But Graham`s simulations are all great and something to look up to and reach to

[kruasan05]

6 minutes ago, cudarsjanis said:

Also what I did once, I just wrote out .bgeo with all particles and before rendering used transform to lift it up on y axes a bit. Also one way to fake it a bit.

Shame that for getting more foam if you increase particle count, you get more bubbles as well. and I got to a point where my system couldn`t handle it. and crashed. cant afford 64 Gb RAM, That`s why I used this vops for adding foam. But Graham`s simulations are all great and something to look up to and reach to

Graham was used 32 gb in this sim. In my case 80 mln core. 60 in WW. Ram 32 gb