text: import yt
  
  import yt_idv
  
  ds = yt.load_sample("IsolatedGalaxy")
  dd = ds.all_data()
  
  rc = yt_idv.render_context("osmesa", width=1024, height=1024)
  rc.add_scene(dd, "density", no_ghost=True)
  
  image = rc.run()
  yt.write_bitmap(image, "step1.png")
  
  rc.scene.camera.move_forward(1.5)
  
  image = rc.run()
  yt.write_bitmap(image, "step2.png")
  