MeshSplitOptionsCompleteOpenCuts Property

Gets or sets whether cuts that stop inside the mesh are completed.

An intersection curve that stops inside the mesh does not separate one side from the other, so the mesh is returned whole. When this is enabled, each such open end is joined to the nearest border of the mesh, or to another cut, by the shortest path along existing edges or straight across a quad or an n-gon between two of its vertices.

This yields a best-effort cut where the intersection alone leaves the answer undetermined: the added stretch follows the mesh rather than the cutter, so it is not an intersection result. No vertex is added or moved; faces crossed straight are re-tiled from their own vertices. Cuts that already close, or that already run from border to border, are unaffected.