UV-Unwrap face loop so that it's straight

Support Materials and Textures
1

Hi all,

Is it possible to UV unwrap a face loop automatically somehow so that to force the vertices at the top of the faces to all be aligned on the X-axis in the UV editor, and the bottom vertices also aligned on the X-axis, but lower down.

(Hard to explain… er…)

What I’m trying to do is repeat a UV texture around a loop of faces on a segment of a cone-shaped object. But when I unwrap, each face’s shape is more-or-less preserved, resulting in an arc, and then I have to manually drag all the UV points to align with each other and “straighten” it out. (because each face is a rhombus, not a square) Is there a method of doing this automatically, or is there a better way to achieve what I want that I’m missing entirely?

Does that make sense?

Anyway, thanks in advance for any help… this has been driving me nuts! :spin:

Jon.

2

Is this what you’re looking for

cone.png828×683 599 KB

3

Yes yes!

Now before you roll your eyes at me (!) I did read the docs & play around with “Follow Active Quads”, but it did not behave like that at all for me!

Thanks so much - now that I know it’s what I’m after, I’ll go have another look at how to use it to get the effect in your pic.

Thanks again. :slight_smile:

4

Hmmm… okay got it working after much kerfuffle!

Some gotchas for noobs:

  1. You must have an Active Face selected, otherwise an error occurs and you’re thrown out of Edit mode back into Object mode.

  2. You must select “UV Unrwap -> Reset” before using “Follow Active Quads” if there are existing UV mappings, otherwise the faces will unwrap in unpredictable ways.

  3. It only works on Quads!

5

On top of that, you probably want to experiment a bit selecting different ActiveFaces( first selected with grey marking). Makes a difference how unwraps. I keep Object Data tab UVs at hand and delete uv if unsuccessful.