The room is Dark Star by Stonemason. An exercise for indoor lighting. 8 round and 14 square spots, 19 radials and a parallel light. A mirror closes the open side and makes the corridor longer. Through the windows are galaxies and star fields from the Space Construction Kit visible. The camera looks through the GWL (gigantic wide-angle fisheye lens) from the Lenses and Filters set (everything available at Daz 3D) and covers a horizontal angle of 260 deg and a vertical one of 160 deg. A passage connects two rooms.