Convert to subd?
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 From:  Michael Gibson
11863.17 In reply to 11863.16 
Hi Phiro, the part that is tricky is that sub-d smoothing does not produce good results on just any type of mesh that could be good for rendering.

A mesh being used for sub-d smoothing needs to have certain characteristics to it and the MOI mesher does not produce those particular things.

It is very good at producing other things like clean wireframes using n-gons but that is not what you need for sub-d smoothing.

The main difference is on planar surfaces like this:


The ideal mesh for that planar surface for rendering and having a clean wireframe that looks like the original CAD model is to have just one n-gon polygon for that face, like this:



But an n-gon like that does not behave well for sub-d smoothing. Sub-d smoothing needs the big n-gon to be divided up and not just in any way it needs many interior points to be added (which is not good for the "clean wireframe" style) and arranged in quads.

There is no way to configure MOI's mesher to produce the interior quads for this case which is needed for proper sub-d smoothing. MOI's mesher is just not designed for generating sub-d control cages. It can do other things nicely but not that.

As I mentioned above, there are quad remesher tools in several polygon modeling programs that do produce sub-d type mesh structures but they will tend to work best on all smooth organic models.

- Michael

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 From:  Frenchy Pilou (PILOU)
11863.18 
In case to make maximum of quads inside an OBJ file
this free one can be also a cool solution! ;)

---
Pilou
Is beautiful that please without concept!
My Moi French Site
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 From:  Frenchy Pilou (PILOU)
11863.19 
So for input this image inside Moi with SubD



Free Sparc3D calculate an OBJ
file from the image!


Then free Instant Mesh (some automatic repairs can be made with the free MeshMixer not made here )
If you want more detail just explore the video above about Instant mesh https://moi3d.com/forum/index.php?webtag=MOI&msg=11863.18


Then Moi SubD create from File


or by SUbDiv beta 9 (byMax Smirnov) some funny results can be made in taking different % ! Don't take Preserve corners !




With automatic repairs from Mesh Mixer (scale is maybe 1/10)
then Moid SUbD from create file... we can see there no more holes or other disagreaments (alone faces etc) but drawing of patches are also changed! :)


Not sure that SubDive beta9 can play! :)



Works with Subdiv9 ! ;)


Load the Subdiv then Subdiv beta 9 but cant't make some faces but keep the impossible faces selected so delete et voila! :)



EDITED: 14 Dec 2025 by PILOU

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 From:  Matadem
11863.20 
Ok so If I understand this right....
The options I have is
1. remesh the object and then try to subD it or the remesher can create a smoother surface? Maybe Rhino shrinkwrap can accomplish something similar?https://www.youtube.com/watch?v=ETeytCD7HTA at 4:06 or is this basically the same as the quaremesher?
2. Try to redraw the result in a polygon based software so I can subd it
3. Attached I try to recreate the shape with Moi3d subd tools.

If I 3d print it which is going to be my first choice it does not have to be abnormally smooth.
however I would like to machine a version of it which the result needed would be the smooth surface of the attached pic.

In the end what ever I use it needs to come back in Moi for the mounting points.

Tnx!
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