2
$\begingroup$

I am trying to unwrap a basic cylinder to a picture wich has a size of 4096x1080px.

open cylinder

The UV map is supposed to look like the 64 faces side by side within the boundaries of the image.

Whatever I try - it never comes to that point. I tried to reset first and than unwrap, to reset and to follow active faces, to pack islands, etc.

There is one weird (I guess) thing: In pretty much every case the faces are rotated by 90° in the UV map. I don't know if this is related to something...

This is the standard map when I start from scratch and hit 2xU (All 64 faces are vertically squeezed into the boundaries) - I want exactly this - just horizontally:

standart UV map

Any help is appreciated!

Thanks and best.

Stefan

$\endgroup$
  • $\begingroup$ Can't reproduce, I get the expected result, try again on a clean file after factory reset, please. $\endgroup$ – Leander Jul 8 '19 at 22:08
  • 1
    $\begingroup$ Try to apply scale for the object (Object mode > object selected > Ctrl+A), then unwrap. Try also in Edit mode unpin all vertices on UV map and then unwrap again (though looks like they aren't pinned) $\endgroup$ – Mr Zak Jul 8 '19 at 22:27
  • $\begingroup$ Thanks to the both of you. I did all that. I even tried to start from scratch (with default settings) - always with the same result. I also modified my cylinder (less faces, e.g.) - always the same: vertically aligned faces squeezed into boundaries of my picture. Is there an option to give one quad a pixel size? That could be a workaround: define the size (pixel perfect!) of one and than "follow quads"... $\endgroup$ – Stefan Jul 8 '19 at 22:38
1
$\begingroup$

If you want to do this manually then mark a seam across the cylinder.

Select all the faces (A), and press U to unwrap.

Select Cylinder Projection.

Set the Direction to Align to Object.

To have the UV align with the Image (or the UV space) use Scale to Bounds

enter image description here

$\endgroup$
  • $\begingroup$ Awesome! That is exactly what I was looking for! Thank you. $\endgroup$ – Stefan Jul 9 '19 at 6:24
2
$\begingroup$

The simplest way is to generate the UVs at the same time as you create your object. Just enable the Generate UVs box.

enter image description here

$\endgroup$
  • $\begingroup$ Thank you! That solved the actual problem! Anyways - it would be helpful to have the possibility to do that later in the workflow. $\endgroup$ – Stefan Jul 8 '19 at 23:02

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.