Merges two subdivision surfaces to create a new subdivision surface.
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Merges the UVs shared by the edges that you attach. If turned off, the UVs are not merged and can be manipulated and edited
independent of each other.
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Any vertices further apart than this distance will not be attached. Set this value carefully. If it’s too small, no vertices
will attach. If it’s too large, the operation may attach vertices that you do not want attached.
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Controls whether Maya keeps the original surfaces you are attaching.
