Invalid surface and "Surface With Edges" rendering of nonconvex VTK_POLYGON
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
0- Open merge.vtu file in attachment 1- Activate Surface or Surface With Edges renderning -> The rendering of nonconvex polygon cell #0 is invalid (see black part between convex hull of cell # 0 and real cell in SurfaceRenderOfNonConvexPolygon.png)
However on page 127 of 4th edition of VTK book in Cell Types section, it is written that : "The polygon may be nonconvex,...".