Welding Curve Is Material node’s group to apply on UV based curves extracted from edge topology or created from scratch.
How to use it?
select the edges you want to be converted to bezier curve. Duplicate in place . Separate.
convert the new object to bezier curve.
set your curve interpolation type in the W menu Set Spline Type (Bezier)
Create another bezier Spline from scratch (on top view), to be used as bevel curve on the
extracted edge spline . it ll be used for profiling your welding joint
Apply the appended material from the file to your main curve or buid your own with “welding bourlet” node’s group
Once you have it applied as bevel curve on extracted edge’s curve. Play with Tilt to correctly orient the welding joint.
Push away curve’s vertices on there Normal axis to match closely as possible the welded’s surfaces. (Better use occlusion to see how far you are from surfaces)
An additional walk-through about normalizing curves.
blender doesn’t have normalized curves so if you generate it from different lengthened edges it ll result in a non uniform uv’s propagation.
Here is the trick to use based on grease pencil tools.
Both are working, closed or opened. But with the standard Blender’s curve (not GeoNode) you have to normalize the points on the curve’s length to obtain a constant UV’s repartition.(second video)
for a curved surface, as you guess, you have to edit the profile shape, so the external points pass under the origin.
I ll edit a new one soon based on Geometry node curve’s system, but my second graphic card, is dying on my 10 years XMG laptop… So i’m waiting for a brand new one to be able to use again Blender without Lags and crashes and infinite shader compilation…
