8.5 Million Particle Meshing Problem

bobbbyyy1
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8.5 Million Particle Meshing Problem

Postby bobbbyyy1 » Tue Sep 20, 2011 9:59 pm

I've been working on high resolution fluid simulations. For this particular sim, there were a lot of meshing problems once the particle count got too high.
Here is a link to the video: http://youtu.be/RolbMDrDF60?hd=1

Is there anyway to prevent the mesh from those defects?

Thanks


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Otuama
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8.5 Million Particle Meshing Problem

Postby Otuama » Tue Sep 20, 2011 10:14 pm

I've never seen a problem like this. At first I couldn't see the problem. I could only see what I thought were codec issues. Then realised they were errors in the mesh itself.

Can you post a few images of the frames with the problem? Saves trying to pause Youtube.

-Sean
iCreate Ltd
'Strength does not come from physical capacity. It comes from an indomitable will.' - Gandhi
'What Does Success Look Like?' - iCreate Ltd


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Otuama
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8.5 Million Particle Meshing Problem

Postby Otuama » Tue Sep 20, 2011 11:03 pm

Each of the defects seem to be in straight lines which is strange.

In Rf, on a frame with a screwed up mesh, if you right click on the mesh node and press build, does it build correctly or the same way?

Did you use hybrido (with hybrido mesher) for this sim or standard particles?
iCreate Ltd
'Strength does not come from physical capacity. It comes from an indomitable will.' - Gandhi
'What Does Success Look Like?' - iCreate Ltd

bobbbyyy1
Posts: 10
Joined: Sun Dec 21, 2008 9:38 am

8.5 Million Particle Meshing Problem

Postby bobbbyyy1 » Wed Sep 21, 2011 7:10 am

If you try to rebuild the mesh, the same defect will happen. If you look at the particles for that frame, no defect is visible. The only way I've been able to get rid of them is to rerun the simulation for that frame and build the mesh using the new particles. But clearly this isn't a practical way since there are way to many frames to fix.

To answer your other question, this was simulated using hybrido.

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bitSeq
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8.5 Million Particle Meshing Problem

Postby bitSeq » Wed Sep 21, 2011 8:42 am

Are you using any smooth value on the RKmesh?

Fish4fluids
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8.5 Million Particle Meshing Problem

Postby Fish4fluids » Wed Sep 21, 2011 9:28 am

Hi,

What RealFlow version are you exactly using?
This was supposed to be solved a while back, I believe even in the last RF5 patch.

g-)
--------------------------------
RealFlow Product Manager
--------------------------------

bobbbyyy1
Posts: 10
Joined: Sun Dec 21, 2008 9:38 am

8.5 Million Particle Meshing Problem

Postby bobbbyyy1 » Wed Sep 21, 2011 9:14 pm

I think the mesh had a smooth value of about 40.
As far as I know, I haven't installed any patches to RF since I got it, so it should be version 5.0. It could be that it got patched a long time ago and I never bothered to update RF.


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