Unwrap UVs Using LSCM
Default Shortcut: U
Menu Path: UVs/Materials > Unwrap UVs Using LSCM
Unwraps selected UVs using the LSCM (Least-Squares Conformal Mapping) algorithm, which attempts to optimally flatten islands of UVs based on seam edges and pinned vertices marked by the user. The flattened object is cut along marked seams (think of them as seams in clothing), while pinned vertices are used to denote which UV vertices should not be changed by the algorithm.
This command is very similar to Recreate UVs Using LSCM Unwrapping. The difference is most apparent when only some components of an object are selected. This command will unwrap the UVs in place, while that command will treat the selection as a new island or set of islands, and scale the results to fill the 0-1 UV tile.
- This command can be applied to component selections (such as selected faces) if you only want to unwrap UVs for part of the object.
- See Mark UV Seams, Unmark UV Seams, Mark UV Seams Toggle, Pin UV Vertices, Unpin UV Vertices, and Pin UV Vertices Toggle for more information on marking seams and pinning vertices.