This parameter and menu item indicate how the Morphing algorithm should search to find the points to use for morphing.
The values are additive:
1 : Leaves un-triangled point stationary 2 : Searches all the closest points 4 : Uses a squaring algorithm to find close points 8 : Uses a Delaunay algorithm to find triangles 16: Precalculate close points
Default value is 0.