To the right is an interactive ray traced scene of four spheres (try dragging your mouse to see how they inter-reflect).

The camera viewpoint is right in the center of the four spheres, looking outward. and the result is meant to be projected onto a spherical dome. It looks distorted because your computer screen is not really dome shaped. If you projected onto a real dome, all the distortion would go away.

- Ken Perlin

Instructions: Drag the mouse around to change the view.