02-08-2022, 01:14 PM
Try a tySplineMesher in extrude mode on your splines, then add a shell on that. It will sort of do things in the reverse order (give them height and then give them shell, rather than give them shell and then given them height), but it should be more reliable because the height direction can be specified in the tySplineMesher rather than relying on face normals.