    shadows = vtkShadowMapPass()

    seq = vtkSequencePass()

    passes = vtkRenderPassCollection()
    passes.AddItem(shadows.GetShadowMapBakerPass())
--
    shadows = vtkShadowMapPass()
    passes.AddItem(shadows.GetShadowMapBakerPass())
    passes.AddItem(shadows)

    opaque = vtkOpaquePass()
    passes.AddItem(opaque)
