openscad/openscad — pull request #189 by donbright (2012-08-22 10:26:28+00:00)
Title: Issue188

stop crash bug of issue #188 reported by Giles Bathgate

now, personally, I think that it might be entirely possible to construct a hull from a non-manifold CGAL_Nef_polyhedron3, by pulling the points out of it, but that's another story for another time.