text: """
  Render a depth image
  ~~~~~~~~~~~~~~~~~~~~
  
  Plot a depth image as viewed from a camera overlooking the "hills"
  example mesh.
  """
  # sphinx_gallery_thumbnail_number = 2
  import pyvista as pv
  import matplotlib.pyplot as plt
  from pyvista import examples
  
  # Load an interesting example of geometry
  mesh = examples.load_random_hills()
  
  # Establish geometry within a pv.Plotter()
  p = pv.Plotter()
  p.add_mesh(mesh, color=True)
  p.store_image = True  # permit image caching after plotter is closed
  p.show()
  
  ###############################################################################
  # Record depth image without and with a custom fill value
  zval = p.get_image_depth()
  zval_filled_by_42s = p.get_image_depth(fill_value=42.0)
  
  ###############################################################################
  # Visualize depth images
  plt.figure()
  plt.imshow(zval)
  plt.colorbar(label='Distance to Camera')
  plt.title('Depth image')
  plt.xlabel('X Pixel')
  plt.ylabel('Y Pixel')
  plt.show()
  
  ###############################################################################
  plt.figure()
  plt.imshow(zval_filled_by_42s)
  plt.title('Depth image (custom fill_value)')
  plt.colorbar(label='Distance to Camera')
  plt.xlabel('X Pixel')
  plt.ylabel('Y Pixel')
  plt.show()
  