Warp wrote:
> Orchid XP v3 <voi### [at] devnull> wrote:
>> So even though you get uniformly distrubuted numbers in 0 .. 1,
>> POV-Ray is actually generating integers and converting them?
>> Presumably that means no two random numbers can differ by less than
>> 2^-32?
>
>  That's correct.
>
>  There are also other side-effects. For example, you can have two
> random seeds, each one creating random numbers independently of each
> other, and suddenly one of them may start giving the exact same values
> the other one gave when it started.
>  This is because every seed is just going through the exact same
> sequence of numbers, simply starting at different places. Advance
> one seed enough and it will eventually reach the starting point of
> the other seed.

And I presume it's a bad idea to choose different LCG coefficients for each 
seed?

Rune
-- 
http://runevision.com

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