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So, I've been unwrapping semi-circular objects and this happens:

bolt_uv

I wanted to know if it is a configuration setting that I'm screwing up or something like that. I can edit it but it is a huge pain, in some tutorials they just work. This is killing me slowly and surely.

Ray Mairlot
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Graudhir
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2 Answers2

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The solution is:

In Object Mode: Apply the scale first.

Now you can unwrap it.

See the image below:

enter image description here

Edit: It is a good practice to Apply any transformations (scale, rotaion...)before using any modifier or/and Unwrap.

LeoNas
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  • Oh my gawd, thank you so much, man! Now I will always keep that in my ocd checklist. You guys are freaking fast. I was aways afraid of seeking help in forums, but I loved it. Thanks to everyone again <3 – Graudhir Aug 16 '18 at 16:16
  • You need to choose one of these answers. – LeoNas Aug 16 '18 at 16:18
  • I think what LeoNas means is that if one of these answers has solved your question, you can 'accept' it. See: https://meta.stackexchange.com/questions/5234/how-does-accepting-an-answer-work – Ray Mairlot Aug 16 '18 at 16:21
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When I try and unwrap your model a message appears in my toolbar:

enter image description here

And when looking at your object's dimensions, I see, as the previous message indicated, that your object has non-uniform scale (not all values are '1'), meaning the object has been scaled in object mode:

enter image description here

The unwrap operation works on the vertices, essentialy ignoring any scaling in object mode you have done to the object (as I understand it). You need to 'apply' the scaling you did in object mode, to the underlying vertices. You can do this by pressing Ctrl+A and choosing Scale.

See Why is it important to apply transformation to an objects data? for more information.

Ray Mairlot
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  • Wow, I also never noticed error messages in blender, now I look for them, and aways apply transformation changes :D. Thank you very much. – Graudhir Aug 16 '18 at 16:20