Straightening

The UV Flow add-on allows you to straighten UV islands quickly in both the 3D View (Cut UV tool settings) and the UV Editor (UV menu). The operation performed is context-sensitive, depending on your selection, and you can straighten multiple islands simultaneously.

Straightening Operations

• Single Edge Selection: If you select a single edge, straightening will rotate the island so that the edge aligns with the nearest axis.

• Quad or Patch Selection: If you select a quad or a patch of quads, straightening will align the quads to the grid and unwrap the remainder of the island around the straightened section. If the quads form a continuous ring, straightening will automatically add a split to unwrap it as a straight line.

• Triangle or N-gon Selection: If your selection contains a triangle or an n-gon, straightening will align the bounds of the selection to the grid and unwrap the remainder of the island around the aligned section.