Meshing small hybrido pool in large pool of water

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  02 February 2013
Meshing small hybrido pool in large pool of water

I have some shots with crocodiles in a pool. To get more resolution in my Realflow sim I thought I could make a smaller Hybrido grid and hopefully later on "stitch" it together with the rest of the pool (which is jus a plane..In my water shader I have some VrayWater which make some smaller pool waves...).

I mesh using Frost in Max.

Are there any good workflow doing this?
i guess its the same if you have a shark jumping out of water in a big ocean...

Thanks in advance
 
  02 February 2013
If you're meshing with frost, you can make some particles on the plane surface (pflow or PRTVolume), cache these and add them to the Frost, this way you'll get a continuous surface as long as the edges of your sim are flat.
 
  02 February 2013
Thanks alot for you fast reply and your right its failry easy to add more particles to the Frost.

The problem is that usually there are always som small movement in the hybrido .bin particles. So my sudes arenīt flat.. I guess I have to make the sides bigger to avoid that..But I donīt know if I can avoid it even if i have a compression on 0.05 in Realflow. The water volume will always move if there are some movement in the water..

maybe I can use some deamon in realflow...

Cheers and please come with suggestions if the sides arenīt flat...
 
  02 February 2013
You can come up with a KCM setup to average out the position of the particles on the edge, which would remove the discontinuity. There is a very nice weighted average operator in magmaflow that could allow you to do that. So you can just select the particles in a strip along the border and use the weighted average to average out their position with their neighbours.
 
  02 February 2013
You could use a realwave object along with your hybrido sim too. The realwave can inheret hybrido motion just parent it. Then mesh both with frost.
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  02 February 2013
Originally Posted by JohnnyRandom: You could use a realwave object along with your hybrido sim too. The realwave can inheret hybrido motion just parent it. Then mesh both with frost.


Thanks for your answers! How should i connect my hybrido to realwave?
I canīt get this to work... Could you explain a little it more how to do it..

Cheers
Daniel
 
  02 February 2013
You would use a bin loader and have the bin loader interact with realwave.

Also the shark object can interact with the realwave object too.

EDIT:
1. open the scene and simulate
2. flip the grid and emitter to cache when sim is complete
3. enable the Bin Loader and path to the emitter cache files
4. run another sim with the bin loader and realwave

Sample Scene
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Last edited by JohnnyRandom : 02 February 2013 at 06:04 PM.
 
  02 February 2013
In fact you could also bring the base hybrido back in to max, cull unwanted negative z-axis particles and bin those back out back into realfow for a realwave interactive layer. I think you could get a lot better performance out of the system by removing unnecessary particles.
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  02 February 2013
Thanks a bunch for taking time to explain that for me.. .I have never used the Bin Loader...
Opens up alot of possibilities for me...

Cheers
Daniel
 
  02 February 2013
np

Bin loader is uber userful, nBinLoader even lets you load multiple streams. IIRC this is why Krakatoa can write to .bin.
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  02 February 2013
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