Wasn't it Slime who wrote:
>Nice.
>
>A while ago I did something similar, but instead of relying on photons
>(which have the problem you mention with large numbers of facets), I
>manually calculated the shapes of the reflected rays. The beams of light are
>meshes filled with media, and the lights on the floor are actually polygons.

Your beams seem to rotate at the same speed, as if the ball were a light
source rather than mirrors.

-- 
Mike Williams
Gentleman of Leisure

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