1
$\begingroup$

I encoutered the same problem asked by @Travis here, and I applied the solution proposed by @Moog.

I tried thus to convert NURBS Sphere to MESH and delete Vertex, but when I tried to perform the reverse operation, I loose the object (see below).

enter image description here

Is there a solution for this ?

Thanks a lot in advance for your answer.

Improve this question
$\endgroup$

2 Answers 2

Reset to default
0
$\begingroup$

I think it doesn't work because in Blender curves control points can't be linked to more than 2 other control points. This is a limitation and I don't think you can do much about it, the software can't guess which edges you want to keep. What you can do is extract the vertical and horizontal edge rings, and then convert to a curve.

Illustration :

enter image description here

Improve this answer
$\endgroup$
4
  • $\begingroup$ Thanks for the .gif but it's too quick for me. I don't succed to apply what you did. How do you move the selected vertical and horizontal Edges ? Is there several copies of the inital MESH ? Please, could you also send me a link to better understand this : "control points can't be linked to more than 2 other control points." Thanks again. $\endgroup$
    – arum
    May 17, 2021 at 5:38
  • $\begingroup$ For information, I found this : blender.stackexchange.com/questions/65061/… $\endgroup$
    – arum
    May 17, 2021 at 5:47
  • $\begingroup$ @arum ALT + Click on Edge ring, then Select > Select Loops > Edge Rings then SHIFT D to duplicate and H to hide. Then do the same for the horizontal rings, duplicate, hide, delete the base meshj and you only have unconnected edges. You won't go back to NURBS though, only regular curves $\endgroup$
    – Gorgious
    May 17, 2021 at 6:21
  • $\begingroup$ Thanks a lot for your reply. $\endgroup$
    – arum
    May 17, 2021 at 9:28
0
$\begingroup$

You cannot convert a surface to a curve without losing data AFAIK. I think you meant to convert to mesh.

Improve this answer
$\endgroup$

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .