    iso_smoothed = vtkImageMarchingCubes()
    iso_smoothed.SetInputConnection(smooth.GetOutputPort())
    iso_smoothed.SetValue(0, 1150)

    iso_smoothed_mapper = vtkPolyDataMapper()
    iso_smoothed_mapper.SetInputConnection(iso_smoothed.GetOutputPort())
--
    iso = vtkImageMarchingCubes()
    iso.SetInputConnection(subsample.GetOutputPort())
    iso.SetValue(0, 1150)

    iso_mapper = vtkPolyDataMapper()
    iso_mapper.SetInputConnection(iso.GetOutputPort())
