Reduce mesh size in Cloudcompare

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phamduysc
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Reduce mesh size in Cloudcompare

Post by phamduysc »

Hi everyone, I have quite big point clouds (27 mil points) then processing a mesh (around 10 mil surface) in Cloudcompare.
The problem is: I cannot read such big mesh in other software.
I tried to use Meshlab to reduce but it crash each time open the mesh (maybe due to big size).
Does anyone here know how to reduce size of mesh in CC ?
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Re: Reduce mesh size in Cloudcompare

Post by max72 »

27 millions for a point cloud is not much, but 10 million tris is quite a lot..
You could check Rhino (my preferred solution, very reliable even with high reductions factors, the free tial lets you save a handful of times), Meshmixer (free, not so intuitive but it works well), or gom inspect (free, but no textures or colours..)

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Re: Reduce mesh size in Cloudcompare

Post by danielgm »

Indeed, CloudCompare is not a real meshing tool, therefore it has no decimation algorithm.

I heard that the last version of Meshlab (Meshlab 2016) is much more stable than the previous one. Is it the one you tried?

Maybe Blender can do it otherwise? And last but not least if you save the mesh as an STL file, you can use the "3D Builder" tool of Windows 10. It has a very simple and efficient decimation function. I never tried it with such a big mesh however.
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phamduysc
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Re: Reduce mesh size in Cloudcompare

Post by phamduysc »

max72 wrote: Wed Aug 23, 2017 1:03 pm 27 millions for a point cloud is not much, but 10 million tris is quite a lot..
You could check Rhino (my preferred solution, very reliable even with high reductions factors, the free tial lets you save a handful of times), Meshmixer (free, not so intuitive but it works well), or gom inspect (free, but no textures or colours..)

Massimo
Thanks Massimo, let me try and see how.
danielgm wrote: Wed Aug 23, 2017 10:00 pm Indeed, CloudCompare is not a real meshing tool, therefore it has no decimation algorithm.

I heard that the last version of Meshlab (Meshlab 2016) is much more stable than the previous one. Is it the one you tried?

Maybe Blender can do it otherwise? And last but not least if you save the mesh as an STL file, you can use the "3D Builder" tool of Windows 10. It has a very simple and efficient decimation function. I never tried it with such a big mesh however.
Actually I used the latest Meshlab version. I've never try 3D builder before. Thanks for suggestion :D Let me try it.
Duy Pham | Surveyor
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