Can't Add Outline on vtk Bezier

Development
,
1

Hello I tried to add the outline on my vtk bezier hexahedron

 vtkActor actor= new vtkActor();
  vtkActor actorBorder= new vtkActor(); 


  vtkUnstructuredGrid ugrid= new vtkUnstructuredGrid();
  ugrid.SetPoints(points);
  ugrid.GetPointData().SetRationalWeights(rationalWeights);
  ugrid.InsertNextCell(new vtkBezierHexahedron().GetCellType()/*
                                                               * VTK_BEZIER_HEXAHEDRON
                                                               */, pointIds);
  vtkDataSetMapper mapper= new vtkDataSetMapper();
  vtkPolyDataMapper mapper1= new vtkPolyDataMapper();


 vtkTessellatorFilter tessellator= new vtkTessellatorFilter();
  tessellator.SetInputData(ugrid);
  tessellator.SetChordError(0.005);
  tessellator.SetMaximumNumberOfSubdivisions(5);
  tessellator.Update();

   vtkOutlineFilter outlineFilter= new vtkOutlineFilter();
  outlineFilter.SetInputConnection(tessellator.GetOutputPort());

  vtkPolyDataNormals normalsFilter= new vtkPolyDataNormals();
     normalsFilter.SetInputConnection(outlineFilter.GetOutputPort());
     normalsFilter.SplittingOff();

     mapper1.SetInputConnection(normalsFilter.GetOutputPort());
     mapper.SetInputConnection(tessellator.GetOutputPort());


     actor.SetMapper(mapper);
     actorBorder.SetMapper(mapper1);

   actor.GetProperty().SetColor(0, 1, 0);
  actorBorder.GetProperty().SetColor(1.0, 0, 0);

ren.AddActor(actor);
ren.AddActor(actorBorder);

  ren.SetGradientBackground(true);
  ren.SetBackground(Bgcolor);
  ren.SetBackground2(Bgcolor2);

Thank you for your feedback.