SubDs on Rhino 8

Hi all.
I tried to work with SubDs in Rhino 8 for a couple of minutes:

  1. '_SubDDisplayToggle or hitting TAB key or
    2025-02-20 14_20_32-SubD Tools 01
    … now register on the undo/redo “history” … this never happened on 7 and I can only see this as a regression. How to fix this?

  2. Soft creases and Hard creases are handled together width-wise. I would set a 2 pixel width for the hard ones but not for the soft ones… A different color would be best.
    It’s difficult to keep track of them! there is a way?

  3. Extruding edges with gumball or by holding CTRL key now sometime gave me a soft crease. I couldn’t manage to replicate this.
    There is a way to fully prevent Rhino from creating soft creases by its own? Because of point 2 above I would prefer to just create them myself when I know I want them.

Thanks in advance!

It currently registers as a repeateable command, but should not; I logged the bug here: https://mcneel.myjetbrains.com/youtrack/issue/RH-86156/SubDDisplayToggle-Never-repeat-this-command.
Adding SubDDisplayToggle to the list of Never repeat these commands should fix the issue immediately.

However, I could not reproduce it registering in the Undo list. If I make a SubDBox, then run SubDDisplayToggle, then Undo, the SubDBox command is undone, as it should. Do you have a procedure to reproduce that?

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Agreed: RH-86159 SubD Display: Have a setting to change display of soft crease edges.

For now the only way to check if edges of a SubD are soft creases, is to select these edges (potentially select all edges of a SubD), then run SubDCrease. Post-selection works too, and the command will not modify anything before it is confirmed (escaping durign the command will not modify anything). Then click on a vertex in the SubD, and the labels will only stay on hard crease and soft crease edges.

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Rhino should not make soft creases on its own, without running the SubDCrease command. So a setting is not needed and would not fix a bug where Rhino is creating a soft crease ex-nihilo. If you can reproduce this bug, let us know and we’ll fix it.

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That works, I didn’t know about that options section.

I did a _Reset, now it doesn’t “Undo”.


I will.

Thanks, Pierre.

RH-86156 is fixed in Rhino 8 Service Release 17 Release Candidate

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