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I'm trying to create a procedural power line generator with Geometry Nodes.

I have a single pole which I instance across a plane. The pole object has separate materials on the faces where wires are allowed to start and end.

I then instance curves on all the green faces. I use geometry proximity to snap the other ends to the red faces.

The problem is that they connect in straight lines. I'd like to have them hang realistically between the poles.

I've tried a lot of crazy stuff with the curve handles, but that doesn't seem to work:

Power line mess

My reference/inspiration is @sozap's great power line generator in this thread on Blenderartists.org.

Here's the pole:

Simple pole mesh

And the node tree in 3 parts:

p1

p2

p3

Thanks for your time!

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  • $\begingroup$ I would look for the yt channel of Johnny matthews. He is one of the developers of GN. He explains exactly that in a good tutorial. $\endgroup$
    – Chris
    Jun 25, 2022 at 16:45
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    $\begingroup$ Thanks @Chris! That solved the problem. $\endgroup$
    – Samuel
    Jun 25, 2022 at 19:23
  • $\begingroup$ you are welcome ‼️ $\endgroup$
    – Chris
    Jun 25, 2022 at 20:13

1 Answer 1

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Set the Handle Type to Vector and then use two Set Handle Position nodes to adjust the Z positions of the handles.

Powerlines in Blender

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