Lets you interactively unfold or relax UVs. Select a group of UVs, and then drag the Unfold or Relax controls to the right.
To open the Smooth UV Tool, select from the UV Editor menus.
The following options appear in the
Tool Settings window when you select
Tools > Smooth > 
.
Smooth Settings
- Pin Borders
-
When on, the border UVs of the selected UV set will not move when the Unfold or Relax controls are moved.
- Space
-
Allows you to adjust whether you Unfold or Relax the UVs in UV Space or World space.