The SubDCrease command makes so called “soft crease.” The crease can be adjusted from 0% and 100%. Can these percentages be translated into radiuses of curvature? Are they more accurate than edge softening (render mesh modifier)?
How accurate is Rhino: Rhino - How accurate is Rhino?
Hello- SubD do not lend themselves at all to the sort of precision I think you are asking about.I.e. use surfaces if you need specific radii…
-Pascal
if you need precise radii, crease the subd edge, finish your subd edits, then convert to nurbs and add a fillet of your desired size.
I was thinking about transition from the smallest fillet of the SubDCrease (100%) to an edge as sharp as a knife. Your solution will work - I can make this transition with VariableFilletSrf.