Problem with Poligonal Path Extrusion (Geometry Nodes)

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1

Hello. I can’t find a solution how to stretch a profile along a curve. At sharp corners the profile shrinks. Who knows how to solve this problem. There is a special checkbox Even thickness in the solidify modifier that solves this problem. Please help with geonodes.
I found a video that can solve this problem, but I automatically fall into the following trap, the video was recorded in an old version, since then the nodes have changed a lot and some are no longer there. I apologize for my English.
Problem with Poligonal Path Extrusion (Geometry Nodes).blend (540.5 KB)

Problem with Poligonal Path Extrusion (Geometry Nodes)
Problem with Poligonal Path Extrusion (Geometry Nodes)1585×1032 189 KB

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2

I can suggest two alternatives (there are certainly more);

  1. Can insert a SET CURVE RADIUS between the GROUP INPUT and your CURVE TO MESH nodes.

Shift + A >>> Curve >>> Write >>> Set Curve Radius ^-^

  1. The manual solution can be found here : Is there a way to clean or assign a radius for the entire curve? - #2 by tomjk

Happy blending :slight_smile:

3

Thank you very much.

  1. does not solve the problem(
  2. i am looking for more of a mathematical approach solution.

4:10
it is ok, but he work in old version blender. I don`t have transfer attribute. I don’t know how to replace it in the new version, and the way they write on the forums I don’t work for some reason…

2. Problem with Poligonal Path Extrusion (Geometry Nodes)
2. Problem with Poligonal Path Extrusion (Geometry Nodes)1587×961 144 KB

4

Pardon me, I didn’t consider you needed the tilt / normals aligned as well. You can find the workaround for the transfer attribute here : (https://blender.stackexchange.com/questions/276087/where-is-transfer-attribute-in-3-4)

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5

I can reccomend you these two links:
@zeroskilz Curve-To-Mesh with Even-Thickness Node-Group (Geometry Nodes, Blender 3.0) - Tutorials, Tips and Tricks - Blender Artists Community
or
@higgsas Curves — Higgsas Geo Nodes Manual 0.1 documentation
both are great learning source as well

2 Likes
6

oh my god. I am very grateful to you for such information. It completely solved my problem.
Do you have any more useful information on studying geonodes? I really want to learn it, but there is so little useful information on them.
Thank you very much in advance.

7

Thank you very much. Very useful information.