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Why are there so many little holes in my mesh?

Posted: Tue Mar 13, 2018 1:33 pm
by heisenberg
Hi all,

I've been doing a test with RealFlow 10 (Hybrido). The simulation in question used around 10 million particles. I then meshed it using a fairly high particle size but I'm still getting little holes appearing everywhere in the mesh, as seen in the renders.

Any ideas? 10 million particles not enough for a simulation like this?

Here are some samples uploaded to my OneDrive account (seems there are problems uploading files to the forum):

https://1drv.ms/u/s!AsMqJZPHhEARiy02s9pCvU2pdOFs
https://1drv.ms/u/s!AsMqJZPHhEARiywDQMy59GtecxzM
https://1drv.ms/u/s!AsMqJZPHhEARiyssjc8mKBI3xk1p

Sincere thanks.

Re: Why are there so many little holes in my mesh?

Posted: Wed Mar 14, 2018 4:47 pm
by ChristianZ
Hi

the large amount of particles does not avoid holes in the mesh, but it provides more detail to the fluid.
Have you used the "Hybrido mesh" or the VDB-version of the Hybrido mesh? You are not obliged to use those. You can also choose the "Particle Mesh" and manually insert (right-click) the hybrido particle emitter. This is my favorite mesh type because you have many options such as the smoothing. Then use a fairly high radius in the mesh field settings. That should help to close the holes.

Re: Why are there so many little holes in my mesh?

Posted: Wed Mar 14, 2018 5:00 pm
by heisenberg
ChristianZ wrote:Hi

the large amount of particles does not avoid holes in the mesh, but it provides more detail to the fluid.
Have you used the "Hybrido mesh" or the VDB-version of the Hybrido mesh? You are not obliged to use those. You can also choose the "Particle Mesh" and manually insert (right-click) the hybrido particle emitter. This is my favorite mesh type because you have many options such as the smoothing. Then use a fairly high radius in the mesh field settings. That should help to close the holes.


Hi there,

Yes, it was the "Hybrido Mesh". I used the "Core Smoothing Filter" with a lot of steps to try and smooth the mesh.

Thanks for the tip. I will definitely use the "Particle Mesh" in future.

Many thanks. 8-)