

"Bald Eagle" <cre### [at] netscapenet> wrote:
> Alain <kua### [at] videotronca> wrote:
>
> > All values are equally possible, including 0 and 1. The mantissa for a
> > float is about 52 bits IIRC, so, you have a 1 in 2^52 chances of getting
> > a 0 and the same of getting a 1. Very small but not zero chance.
>
> So then maybe round to the nearest Q decimal place to "compress" the range and
> increase the likelihood of getting a 1 or a 0.
>
Compressing the range is an interesting concept, that I wasn't aware of. I'll
give some thought to the formula presented there. But I would suspect that
POVRay's internal rounding would be *either* 'round up' OR 'round down', but
not both (?) In other words, a 1.0 (but never a 0.0), OR a 0.0 (but never a
1.0).
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