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From: Frenchy Pilou (PILOU)
You must have installed all 5 "Plugins" first of course! ;)
https://moiscript.weebly.com/la-subdivision.html
(SubDivide, SSplit, SBridge, Sscale)
https://moi3d.com/wiki/MaxScriptArchive
From: Metin (METIN_SEVEN)
Ah, thanks. Because of the included SubD section and button, I thought subdivision had been natively implemented in MoI in the mean time. :-)
From: Frenchy Pilou (PILOU)
Yes this internal Subdiv is made for an object yet made somewhere as a file! (OBJ or FBX)
But not use as real subdiv from zero! :)
And you can't continue the subD modeling (or with many big difficulties) with the imported volume from a file! :)
From: Metin (METIN_SEVEN)
Got it, thanks Pilou!
Fiddling around a bit. It actually works quite well, reasonably comparable to poly subdivision modeling in Blender. Nice!
It also works pretty nicely together with the new MoI V5 beta ACIS functions to move and rotate faces in a solid.
─ Metin
visualizer • illustrator • 3D designer — metinseven.nl
Image Attachments:
Screenshot 2025-09-22 at 15.41.39.png
From: Metin (METIN_SEVEN)
I made a short MoI subdivision modeling recap…
Command downloads:
https://moi3d.com/wiki/MaxScriptArchive
! Quad or triangle faces are necessary !
1. Use _SubdivClassic to subdivide a solid, such as a box. You can choose between Catmull-Clark and Planar (Simple in Blender).
2. If you select an edge, then use _sSplit, you can interactively add an edge loop. Alternatively, use Trim to cut edges into a solid. Make sure the faces remain quadrangular or triangular.
3. Select a face and use _sSplit to inset faces in the proper quad way (MoI's Inset produces an n-gon).
4. Show points, and use _sScale to scale a selection of points.
5. Use Extrude to extrude faces. You can use Extrude SetDirection to immediately activate Extrude's Set Direction mode.
6. Use _sBridge to bridge two faces.
7. Make a copy and use _Subdiv_beta9 to create the final subdivided solid.
● If your model is fully symmetrical, work on one half and mirror it, then join into a solid before using _Subdiv_beta9.
● Select faces, separate them, then select everything and run _Subdiv_beta9 to subdivide into a solid with sharp creases where the surfaces were separated. Make sure the Preserve Corners option is deactivated, or the corners will not be rounded, and the result will still be two patches instead of a solid.
● You can apply _SubdivClassic multiple times to smooth out the overall shape.
● You can convert a solid that has been rounded by _Subdiv_beta9 back to a quad-face cage using _SubdivClassic, although the shape will be a bit rounder because of the _Subdiv_beta9 subdivision.
─ Metin
visualizer • illustrator • 3D designer — metinseven.nl
From: Frenchy Pilou (PILOU)
Cool recap!
Yep it's some rustic but sufficient for any little things... and if you use after something like free Nano Banana or free Vizcom no need render engine and take care of any export polygons problems! :)
Of course with Metin image above! ;)
From: Metin (METIN_SEVEN)
Hahahaha, you're the AI wizard, Pilou! :-D
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