Options for the simplify function.
Limit on error, as a fraction of mesh radius. Default: 0.0001 (0.01%).
Whether to lock topological borders of the mesh. May be necessary when adjacent 'chunks' of a large mesh (e.g. terrain) share a border, helping to ensure no seams appear.
Target ratio (0–1) of vertices to keep. Default: 0.0 (0%).