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I was looking through the blender 2.8 bees but I can't find anything, I've seen on some forums using the bmesh module, but I'm not sure it's the right way.

I could use the operator but I already know that on large scenes inserting the ops in a "for" loop would become very slow.

bpy.ops.mesh.uv_texture_add()

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  • $\begingroup$ You just want to add a UV map, not generating it in a particular way? $\endgroup$ – lemon Aug 28 '19 at 6:18
  • $\begingroup$ This is a good question, I noticed that by default it spreads the map on every single polygon, I would like to understand how to do this, it would also be good to understand how to simulate a "Smart uv" I didn't find much about it $\endgroup$ – Noob Cat Aug 28 '19 at 11:50
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    $\begingroup$ I don't think smart uv corresponds to API which is not bpy.ops (to verify). But just for texture_add, you can obj.data.uv_layers.new(name="UvMap") $\endgroup$ – lemon Aug 28 '19 at 11:57
  • $\begingroup$ @lemon This is exactly what I was looking for, you should enter it as an answer, thank you very much $\endgroup$ – Noob Cat Aug 28 '19 at 13:21
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An alternative to 'bpy.ops.mesh.uv_texture_add()' can be using 'obj.data.uv_layers.new(name="UvMap")' so that you don't need to be in an operator context.

Though, it will not allow complex unwrapping such as smart uv project.

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