Purpose and Functionality of Locking SubD Sub-Objects

Rhino SubD
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Hello,

Could someone help me understand the purpose of locking SubD edges and faces in Rhino? When I try to lock a SubD edge or face to keep it in place, it doesn’t seem to work as expected (it also doesn’t make much sense, right?). After locking, I can no longer select the edge or face, and the “Unlock Selected” command indicates that there are no locked objects. However, the “Unlock” command works, indicating it unlocks one object.

Locked sub-objects also appear identical to unlocked ones, making it difficult to distinguish between them.

Is there a specific use or benefit to locking SubD sub-objects? How should this feature be properly used?

Thank you!

2

I think id can be a helpful feature and make selection easier since it allows window selection but ignores what is locked.

There’s a color settting in the advanced Rhino options but it doesn’t seem to work on SubD sub-objects

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The faces to the right of the selected edge are locked. The edge can be selected but not modified. Blue color shows when dragging the scale handle…

Something seems a little off :slight_smile:

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