[vtkusers] disabling lights

[Fabio De Pascalis]

Hi,all

I'm new to vtk...and i'm trying to develop the first pipelines.

Is it possible to disable the default lights in a RenderWindow. I'd like have only a ambient light...

I'm trying with this:


 lc=renderer->GetLights();
 vtkLight *light;
     
  renWin->Render();
  int ln=lc->GetNumberOfItems();

 std::cout<<" n° lights: "<<ln; output=1
  
 for(i=0;i<ln;i++)
    {
         light=(vtkLight*)lc->GetItemAsObject(i);
         light->SwitchOff();
    
    }

but don't change anything in my scene

Thanks
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