Joining two separate curves smoothly using geometry nodes

I'm trying to join two separate curves "smoothly" using geometry nodes. When the two curves are joined at the endpoint it creates a "harsh" angle where they are connected. How can I smooth this out?


I tried Resample Curve and I tried Fillet Curve in different places but the sharp angle still persists.

I'm trying to get something somewhat seamless that will gradually / smoothly go straight up. Like this.



1 Answer 1


Something like this seems to work:

Realize Instances, then Convert to Mesh, Merge by Distance (with All selected) and convert back to Curve.

enter image description here

To answer Robin Betts' question:

No, it isn't necessary, but I think it has a nicer finish. This is the same without the "Set Spline Type" and with both curves set to the same resolution (80).

enter image description here

  • $\begingroup$ The important bit being: Set Spline Type ? $\endgroup$
    – Robin Betts
    Mar 11, 2023 at 8:54
  • 2
    $\begingroup$ I replied to your question and added another screenshot. Please feel free to let me know if there is anything wrong or if anything is missing. $\endgroup$
    – Vagabonk
    Mar 11, 2023 at 11:06
  • 1
    $\begingroup$ Thanks! For once, I didn't check for myself :) Looks fine! $\endgroup$
    – Robin Betts
    Mar 11, 2023 at 11:11

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