8aa365745a
This applies patch D14343 from Aras Pranckevicius, with a description: The new 3.1+ OBJ exporter did not have correct logic when faced with non-uniform & mirrored (negative on odd number of axes) object scale: - Normals were not transformed correctly (should use inverse transpose of the matrix), and were not normalized, - Face order was not "flipped" when transform has negative scale on odd number of axes (visible when using "face orientation" viewport overlay).
Sphinx Warnings
: WARNING: Could not obtain image size. :scale: option is ignored.
Note the preview is not accurate and warnings may not indicate real issues.
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