<div dir="ltr"><p class="MsoNormal"><span lang="EN-US">I have a question regarding the </span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:darkslategray">VTK_POLYHEDRON</span><span lang="EN-US">. When all the faces are convex faces the rendering is ok.<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US">When one of the faces is non-convex the result is wrong <u></u></span></p><p class="MsoNormal"><span lang="EN-US"></span></p><div><img src="cid:ii_jpwdexbk0" alt="image.png" width="542" height="278"><br></div><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US">The corresponding code is this<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:rgb(43,145,175)">vtkSmartPointer</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black"><</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:rgb(43,145,175)">vtkUnstructuredGrid</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">> ugrid = </span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:rgb(43,145,175)">vtkSmartPointer</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black"><</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:rgb(43,145,175)">vtkUnstructuredGrid</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">>::New();</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black"><u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">       ugrid</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:teal">-></span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">SetPoints(points);<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">       ugrid</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:teal">-></span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">InsertNextCell(</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:darkslategray">VTK_POLYHEDRON</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">, 10, dodechedronPointsIds, 6, Faces</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:teal">-></span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">GetPointer());<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US">When I use wireframe representation for both convex and non-convex polygons the results are ok (the second attached file)<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">SetRepresentationToWireframe();<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US">When I use rendering  representation for convex faces is ok but for non-convex the representation is wrong</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black"><u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">tmpCustomActor->GetProperty()->SetRepresentationToSurface()</span><span lang="EN-US"><u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black"><br></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black"><span style="font-family:Verdana,Geneva,Helvetica,Arial,sans-serif;font-size:13.44px">Thanks</span> </span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black"> <br></span></p><p class="MsoNormal"><span lang="EN-US"><u></u> </span></p></div>