def METHOD_NAME(self):
    dd = self.ds.sphere(self.ds.domain_center, self.ds.domain_width[0] / 10)
    sc = Scene()
    cam = sc.add_camera(dd, lens_type="plane-parallel")
    cam.set_width(self.ds.domain_width * 1e-2)
    v, c = self.ds.find_max(("gas", "density"))
    vol = create_volume_source(dd, field=self.field)
    tf = vol.transfer_function
    tf.grey_opacity = True
    sc.add_source(vol)
    sc.save(f"test_plane_{self.field[1]}.png", sigma_clip=6.0)