.. _bpy.types.Object.track_axis:
.. _bpy.types.Object.up_axis:
.. _bpy.types.Object.use_extra:

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Relations Extras
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Tracking Axes
   TODO.

   Applies to *Instance Verts* when *Align to Vertex Normal* is enabled.

   Axis
      Axis that points in the "forward" direction.
   Up Axis
      Axis that points in the "upward" direction.