Automatically generates explicit texture UV coordinates. The UVs created in this way are evenly spaced according to the number
of segments (edges or knot curves) in each direction.
The UV generation is "live". If you change the number of subdivisions set in the generator operator, the UV coordinates are
automatically updated. If you change the number of subdivisions after you have manually edited the UVs, you probably won't
get desirable results because the UV indices have changed. If you freeze the UV coordinates, the generator operator is frozen
as well.
Clicking this button multiple times does not generate multiple UV projections.
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