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$checkuv is a QC command available in Source 2013. It checks the UVs of meshes and prints out messages if the checks fail.


$checkuv <0to1> <overlap> <inverse> <gutter [res] [min]>
Checks that all UVs are in the [0, 1] range
Checks that all polygons in UV do not overlap
Check that all polygons in UV have the correct winding, i.e. the cross product of edge AB x BC points the right direction
Checks that the distance between edges in UV islands is a minimum number of pixels for a given texture size
Note.png Note: gutter does not function as it has not been implemented