Support Concave Polygon？

[RPG3D]

No description provided.

[bl4ckb0ne]

No idea, but the algorithm is processing triangles, so I guess it could work.

I'm not on my computer so I can try it, but I'll give you a feedback soon

[jondo]

I guess that @RPG3D was looking for a Constrained Delaunay triangulation, which is not supported here.

[MauriceGit]

For a non-constrained (normal) Delaunay triangulation, there is per definition no concave version. A Delaunay triangulation will always result in a convex polygon with a corresponding convex hull.
(Just to clarify)