"Nicolas Alvarez" <nic### [at] gmailrockscom> wrote:
> "Eric Buddington" <ebu### [at] wesleyanedu> wrote:
> > I am having trouble rendering scenes on a large scale, where the distances
> > and sizes are millions of units.
> >
> Problem is probably floating-point number accuracy.
>
> http://tag.povray.org/povQandT/languageQandT.html#largescaleproblems

If you replace the sphere object with an equivalent 'isosurface sphere'
the scene from Eric and the demo scene from
http://tag.povray.org/povQandT/languageQandT.html#largescaleproblems
do not show any problems.

Is there a problem with sphere objects?

(I would like HUGE_VAL to be removed from the source code too, because
it seems to be an arbitrary limit, and _relative_ precision should be
looked at instead IMHO).

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