I have a 2D polyline curve: enter image description here

On this curve I add these geometry nodes: enter image description here

My resulting geometry has these weird creases in it. What would be the simplest way to get rid of them? enter image description here

I have tried resampling the curve and that didn't quite work. Also if the solution is to add geometry it would be ideal to keep the increased geometry around the corners only because I'm going to have a few thousand of these curves in my project, so efficiency is key here.

  • $\begingroup$ You can try to add a fillet with Fillet Curve node (or Curve Fillet ?) $\endgroup$
    – Gorgious
    Jul 19, 2022 at 7:23
  • $\begingroup$ I am not quite clear what the result should be. Should it be sharp corners with uniform thickness, or rounded corners? And why do you use Geometry Nodes here at all, if you can achieve that with Curve Bevel as well? $\endgroup$
    – quellenform
    Jul 19, 2022 at 10:03
  • $\begingroup$ @Gorgious Thanks. That is a life saver. Helped me achieve exactly what I want to achieve. $\endgroup$ Jul 19, 2022 at 16:07
  • $\begingroup$ @Gorgious Are you going to write an answer or do you want me to do it? ;-) $\endgroup$
    – quellenform
    Jul 20, 2022 at 10:44
  • $\begingroup$ @quellenform Please do :) $\endgroup$
    – Gorgious
    Jul 20, 2022 at 12:15

1 Answer 1


From the comments, it appears that you want to extrude a profile and have the corners evenly rounded.

You can solve this relatively easily with the node Fillet Curve:

enter image description here

Note that the radius for the rounding must be the same as the radius of the profile curve and Poly must be selected.

PS: If you need instead a profile with constant thickness and peaked corners, you can solve it this way:
Solving Uneven Profile Curve Thickness with Mesh Extrusions?


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