I have an imported mesh which is a bent metal tube. I would like to add anisotropy to the material, so I need to UV unwrap it where V goes along the tube. The accuracy of the U mapping doesn't matter.
I already added a seam along the tube on the side that won't be visible, but the unwrapping produces this:
Obviously the 17,000 faces are a bit difficult to handle, plus they are not really as regular as you would like. I don't know how to approach this.