NURBS surfaces should be called NURBS membranes

[wim (Wim Dekeyser)]

@DavidRutten

Vipers and insects would disagree with us as to exactly which iso-surface represents the boundary between visible and invisible, as would almost any mechanical camera.

Oh, the irony - Rhino disagrees as well…

How to select visible (front) faces only?

As far as I can see SelVisible is completely broken… [image] https://mcneel.myjetbrains.com/youtrack/issue/RH-44001 -Pascal