The Peeler Tool is used for manually fixing UV maps. User 'cuts' a seam of edges in a well-behaved quad mesh, the Peeler Tool spreads UVs out perpendicular to the seam, trying to loop back to the cut from the other side. The region of UVs produced can be controlled. This tool can be useful for tedious, manual-style atlas mapping, or other cylindrical unwrapping tasks.
Tool attributes include:
Min/Max UV: Normally 0,0,1,1, these define a box in UV space where all the grids will be positioned.
Uniformity: Controls the size of the UV polygons in proportion to the size of the 3D space polygons. At 0% every polygon's size in UV space is proportional to its size in 3D space. At 100% the polygons all have the same size, making a nice regular UV grid.
The Peeler tool can work well on meshes that have uniform quadrangular polygons organized with adequate edge loop flow. For meshes that have more complex topology it is recommended to use the UV Unwrap tool which provides a far more sophisticated algorithm to untangle the UVs.
