PolyUnwrapper is a complete set of professional tools designed for the texture artists, especially for the architectural and game industries.

It contains plenty of features that will greatly help you improve your unwrapping workflow. Main Features Features
Multi Stitch. Stitch Multiple Shells at once Custom Packing algorithm and tools Tool for matching the Shells Width and Height Easy Grid Spacing Render UV Tiles (UDIM) Cycle Checker map PolyUnwrapper Toolbar now keeps on top of the Unwrap Editor Render Open Edges
 
Home Page – http://www.polytools3d.com/polyunwrapper/