code: def render(n_frames=1, axis=np.array([0.,0.,1.]), clf=True, **kwargs):
          
          v = SceneViewer(Visualizer3D._scene,
                          size=Visualizer3D._init_size,
                          animate=(n_frames > 1),
                          animate_axis=axis,
                          max_frames=n_frames,
                          **kwargs)
  
          if clf:
              Visualizer3D.clf()
  
          return v.saved_frames
docs: Render frames from the viewer.
  
          Parameters
          ----------
          n_frames : int
              Number of frames to render. If more than one, the scene will animate.
          axis : (3,) float or None
              If present, the animation will rotate about the given axis in world coordinates.
              Otherwise, the animation will rotate in azimuth.
          clf : bool
              If true, the Visualizer is cleared after rendering the figure.
          kwargs : dict
              Other keyword arguments for the SceneViewer instance.
  
          Returns
          -------
          list of perception.ColorImage
              A list of ColorImages rendered from the viewer.