Viewable in 2D, 3D, and 360° Virtual Reality.
Look at this Blender alien with your VR viewer (Google Cardboard, Gear VR, etc), and see if this much depth hurts your eyes.
The alien has twice as much depth (net deviation) as I typically use in my cubic illusions. Look at that belly!
Everything else in this 360° view looks totally flat. Turn your head all the way around and up and down to see the totally flat universe.