I am trying to create a conical pipe of a certain thickness.

enter image description here

But the combination I use leaves the inner walls of the pipe unfilled.

enter image description here

I need an analogue of the "Solidify" modifiers using geometry nodes to solve this problem and, for example, create a cavity in a regular cube or sphere. Example:

enter image description here


1 Answer 1


Your setup is good so far. What you need for the inner face is simply to join the original mesh before extrusion to the extruded one. Since the normals on the inside are facing in the wrong direction now, you need to also place a Flip Faces node after the Curve to Mesh before the Join Geometry node.

The problem with the Extrude Mesh node in GN is that there is no "Even Thickness" setting like in the Solidify modifier. So in some or more likely a lot of cases you will not get a similar result.

solidify GN

  • 3
    $\begingroup$ Too bad that various modifiers have not yet been translated into Geometry Nodes. However, there are positive developments in this direction (example: "Bevel Modifier"). $\endgroup$
    – quellenform
    Aug 11, 2022 at 9:54
  • $\begingroup$ You mean... Bevel is in the latest version? $\endgroup$
    – Robin Betts
    Aug 11, 2022 at 12:06
  • $\begingroup$ @RobinBetts I was wondering the same... I got 3.3.0 Beta and 3.4.0 Alpha but I didn't find it. $\endgroup$ Aug 11, 2022 at 13:05
  • $\begingroup$ @quellenform Where can we find the Bevel Modifier in GN? I'm really looking forward to that... $\endgroup$ Aug 11, 2022 at 13:06
  • 1
    $\begingroup$ @GordonBrinkmann Hans Goudey wrote in a post dated Thu, Jul 28, 18:42: "There is already work underway for a new bevel implementation as a node." Link $\endgroup$
    – quellenform
    Aug 11, 2022 at 13:17

You must log in to answer this question.

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