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I've been searching for an answer for how to unwrap curved objects (pipes specifically) in blender. Youtube throws out tones on how to do it in maya but nothing about it in blender. If I unwrap this ring with a cap on either side and a seam straight dow, the uv island is really pinched on one side. Any help?

The other question How to uv-unwrap a complex bent object? didnt exactly help massively.

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obloquy
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  • https://blender.stackexchange.com/questions/74041/how-to-perfectly-align-uv-coordinates-automatically/ and https://blender.stackexchange.com/questions/78358/how-to-straighten-curved-uvs-into-straight-belt and https://blender.stackexchange.com/questions/92812/how-can-i-assign-the-texture-on-saturns-rings/ – Duarte Farrajota Ramos Mar 21 '18 at 01:26
  • Also https://blender.stackexchange.com/questions/74515/how-do-i-unwrap-a-cylindrical-object/ and https://blender.stackexchange.com/questions/74772/uv-unwrap-cylinder-lightsaber-with-extrusions-insets or https://blender.stackexchange.com/questions/23133/unwrap-curved-flat-stripe – Duarte Farrajota Ramos Mar 21 '18 at 01:29
  • Hi, I've already tried the follow quads but that doesnt seem to work as my quads arent equal and therefore seems to produce alot of stretching and colour change. I also downloaded the Tube unwrap but that doesnt seem to be active on the list when i hit 'U' – obloquy Mar 21 '18 at 01:40
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    Might want to check out Tube UV Unwrap addon on this page. – batFINGER Mar 21 '18 at 13:07

1 Answers1

2

Final:

Final final_2

Overview:

Seems:

This is how I have placed them, not ideal. Seem should be marked along middle edge for a better result. Just count them and select right one.

seems

Unwrapping:

Use my answer from here and don't skip any step. This is crucial.

https://blender.stackexchange.com/a/78362/29370

Correcting UV:

Now you should have nice straight UV map.

  1. Select middle edge (or edges).

uv_1

  1. Turn on Proportional Editing and change Falloff type to Linear.

uv_1

  1. Move selected edges on X axis to minimise stretching. Don't forget to use Falloff scale - MouseWheel.

uv_3

cgslav
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  • Thank you so much LukeD! Im still a newbie to unwrapping and didnt realise about proportional editing! Thank you taking the time to help out :) – obloquy Mar 21 '18 at 14:54
  • @obloquy if my answer was good, please use accept button and up vote arrow. – cgslav Mar 21 '18 at 14:55