>         Very very positive (as in more than what a long can contain) and very
> negative (as in less than -10000) numbers. Of course I can do it the
> same way it's done in pov now (in fact that's what I do). But I was just
> suggesting that I could add an option that would allow people to get the
> whole range at the cost of speed if they need it (of course I intend to
> use the fast noise as the default).
> 
I wonder, why this clamping reduces performance in such degree (almost
50 %)? Noise calculation does much more and requires only twice as much
time? This seems really strange.

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