Blender Stack Exchange is a question and answer site for people who use Blender to create 3D graphics, animations, or games. It only takes a minute to sign up.
Sign up to join this community
Has anyone managed to make a generic "extrude" mesh surface operation in geometry nodes?
I want to do the equivalent of taking a flat grid, extruding it up 1000 units, and down 1000 units; such that Im left with three copies of the surface connected by faces.
The closes I've come is this; which works but isn't generic. This generates a mesh from curve (using a line profile), then makes a cube and rearranges the faces to fit.
With the node Extrude (Blender 3.1+) you should be able to get - after I rebuilt your nodes - exactly what you are looking for.
If you use the node twice in a row, and only use the selection Top from the first node for the second, your grid will first be extruded from 2D to a 3D mesh, and then only the top faces.
