Surface U/V Directions
This function can be used to quickly display the U, V, and Normal directions of any given surface.
HINT: A normal is a vector perpendicular to a surface. When dealing with a solid, the normal always points out of the material.
Using the Function:
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Select Surface UV Directions from the Tools>Verify submenu.
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Select the surface to verify. A gnomon will appear on the surface indicating the U, V, and normal directions for that surface.