[vtkusers] Fw: point rendering

[Jan Fransens]

Hi,

I am trying to render a point cloud of 3d coordinates with associated normals. However, during rendering, points with a normal facing away are rendered completely black. Points with front facing normals are rendered fine.

pActor1->GetProperty()->SetPointSize(2.0);
pActor1->GetProperty()->SetColor(1.0,1.0,1.0);
pActor1->GetProperty()->SetRepresentationToPoints();   // |_rendering behaviour doesn't change
pActor1->SetBackfaceProperty(pActor1->GetProperty());// |

pRenWin->GetRenderer()->TwoSidedLightingOn(); // same result
pRenWin->GetRenderer()->AddActor(pActor1);
pRenWin->GetRenderer()->ResetCamera();
pRenWin->show();

Does anyone know what causes this problem (I'm using Vtk 4.2)

Many thanks,

Jan
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