we do not have many tools to change SubD Typology. One way is to triangulate Faces with _insertPoint and then delete unwanted Edges to quadrangulate the typology again. restart / new edge But: calling _insertPoint does not allow to restart a new series of edge insert a simple example of triangul…

yep, I get that- my only counter argument would be that it would be very easy to make a mess if you weren’t paying attention. Having points that are close but not stitched make for weird pinchy bits. but…typically we allow folks the leeway to do what they want and reserve judgement about if it’s a…

for me the first aspect was more import - allow a option to start a new series of edge. (edit / added paragraphs to the initial post …) maybe the “insert point on a face” might be an option, that is turned of by default. would be cool if standard Osnap would handle this… similar to the (ugly/mess…

[333] I think it’s necessary to be able to achieve functions like this

Xkdsofa,This is great. Does this work in Rhino? How did you achieve that?

What I want to ask is, how did he manage to draw the inner points?

[image] Ryun_C: What I want to ask is, how did he manage to draw the inner points? What he is showing, is drawing a polyline on a regular (poly)surface, followed by SubObject Selection and pulling the surface with the Gumball

It is obvious that _InsertPoint can only be interpolated on the boundary, i.e. (a,d,e,f,). And what he does is he inserts points (b,c) into the SUBD plane. I want to know how these two points are achieved? Clearly there is no boundary at point (b,c) [5]

[image] Ryun_C: And what he does is he inserts points (b,c) into the SUBD plane No, that’s not what’s happening: [image] Gijs de Zwart: What he is showing, is drawing a polyline on a regular (poly)surface

I was mistaken. I thought he had already implemented this feature. It turned out to be drawing multiple lines, thank you for your answer

(papercut/wish) InsertPoint (SubD)

Rhino SubD

brian (Brian Gillespie) May 20, 2026, 3:12pm 23

RH-92736 is fixed in Rhino WIP

Topic		Replies	Views
(Wish) _insertPoint start new Edge/Chain option Rhino mac	3	77	September 27, 2025
Insert point to SubD Rhino 8 SubD windows , subd , rhino-8	1	407	November 27, 2023
InsertPoint does not work for subd SubD	7	1222	October 19, 2019
InsertPoint Subd Bug SubD windows	1	446	April 3, 2023
BUG, Regression Rhino 8. SubD insertpoint SubD windows , subd	1	242	March 19, 2024

(papercut/wish) InsertPoint (SubD)

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