Wasn't it JRG who wrote:

>This is the Lightflow version. The glass looks better but the box itself
>looks badly illuminated IMO.
>The caustics are completely different here.

There's something strange about the Lightflow floor. It seems to produce
an elliptical reflection of the sphere. I can imagine a gently curved
shape that would do that, but the reflections of the edges of the walls
would be curved.

-- 
Mike Williams
Gentleman of Leisure

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