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in the official Docs it says that I could import a UV Layout that I have previously exported (https://docs.blender.org/manual/en/latest/addons/import_export/mesh_uv_layout.html) However I struggle with that... First, I can not export the layout in .tga format Second, when I try to open the image as described, .svg and .eps files are not considered valid

What I need to do is consistently unwrap a certain topology: It will always be the same mesh (generated externally) with same stats, but when using the same config for the Smart UV Unwrap, it creates slightly different layout each time I try. But in order to have one consistent texture, I need to transfer one standardized UV Map onto the mesh.

Thanks for your help!

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I can not export the layout in .tga format

You can't, it's either PNG, SVG or EPS:

formats

 when I try to open the image as described, .svg and .eps files are not considered valid

I can open them fine on Glimpse/Gimp, so they are definitely valid. But figuring out what's going on with a different software would be out of subject on this website.

If you are trying to open them in Blender, I don't think Blender support these formats to begin with.

As explained in the addon's manual:

Using your favorite image painting program, you could use an exported UV layout to create a texture.

This is really meant to help you paint your textures on your UVs externally. PNGs can work in Blender, but not vectorial picture formats.

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  • $\begingroup$ Thanks for the comment, I really appreciate you trying to help :) Yeah, but in the docs it says "Then save your changes, and back in Blender, use the Image ‣ Open to load it as your UV image for the mesh in Edit Mode for the desired (and active) UV map." So how can I import the .svg and .eps when Blender doesn't support these formats? Opening the image in .png just loads the texture and doesn't apply the UV grid, it still remains the previous one in Blender... $\endgroup$ Nov 12, 2022 at 12:54
  • $\begingroup$ Either you want to paint in Blender and you use the PNG export, or you want to paint elsewhere and use either of the three format as you like. And yes, it's just an image. It doesn't alter the UV themselves, it's just a guide for you when painting. $\endgroup$
    – Lauloque
    Nov 12, 2022 at 16:38
  • $\begingroup$ Yes, and thats the problem. I want to create an addon that loads this particular UV Map onto any asset with matching topology. Therefore I want to store the UV Information somewhere where Blender can access it across multiple projects $\endgroup$ Nov 12, 2022 at 17:05
  • $\begingroup$ You should have started from there maybe x) No need for an addon, just Select your object to copy to, then Shift select the object with the UV to copy, and press Ctrl L > Copy UV Maps $\endgroup$
    – Lauloque
    Nov 12, 2022 at 18:54
  • $\begingroup$ Copy UV Maps — Blender Manual $\endgroup$
    – Lauloque
    Nov 12, 2022 at 18:54

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