>   No, the true answer is that the farther away the light source, the
longer
> it takes to reach the object (why do you think that it takes about 8
> minutes for light to travel the distance from the Sun to the Earth?).

LOL !

>   The most probable answer to your question has something to do with light
> buffers. The light buffer algorithm works best when the objects are about
> equally distributed all around the light source. If all the objects are
> inside a very small area from the point of view of the light source, the
> less efficient the light buffer algorithm is.

Thanks, this was new to me.
That's probably the reason... Good to know.  :o)

Regards,
Hugo

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