What’s the overall workflow for trying this out? I don’t frankly know anything about them from other programs, I want to try out some upholstery that would be good for it, but what do I do? Make a mesh cage and convert it? I made a SubD surface from a regular surface and what I seemed to actually be able to do with it was pretty limited, trying to subdivide a face didn’t do anything.
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This is the workflow as much as I figured it out.
- create a closed solid (surface if you will)
- use command
ToSubD - select the solid (surface)
- use command
SubDivideon the result. - pick number of divisions count (weirdly counter intuitive it’s a number between 1 and 2)
- show points or select sub-elements and start pulling
I think we need to wait a bit longer. Most tools don’t work well, or don’t work at all. Also simple stuff like subselection of faces of a mesh is very erratic; it fails more often that it works.
You know, I think implementation of control point grouping will be easier/faster than SubD.
I’d suggest leave SubD for Rhino8 and implement control point goups for Rhino7. 
What are “control point groups”?
Control points groups = faster horses.
Take a look at how Maxsurf groups control points.
Sorry for the delayed answer but apparently I haven’t marked this thread as Watching and you didn’t quote or reply to my post. Discourse being pretentious 
Hi, Jim,
Honestly, Rhino SubD needs a more creation and editing tools to be “minimum viable product” useful for starting a SubD from scratch. These tools include bridging, better joining, and better editing. All are being worked on actively and none are ready for prime time.
If you happen to have a course mesh of an object and wish you had something smoother, you can do something like the following.
- Use ToSubD to make a SubD from the mesh.
- Use Crease and RemoveCrease on the SubD to adjust edges as needed.
- Use ToNurbs to convert the SubD to a polysurface and then continue with whatever processes you typically use with NURBS based objects.
– Dale Lear
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