If you look around you will find lots of generators better than the one used
in POV. By the way (and this is an official request to POVTeam) even without
switching to the best currently known even the Park-Miller minimal standard
is better ...and YES, they are not significantly slower.

Some URLs:
*) A place to start: http://csrc.nist.gov/rng/
*) Park Miller Minimal Standard
http://htm4.ee.queensu.ca:8000/ling/minrng.html
*) Mersenne Twister, currently the best known
http://www.math.keio.ac.jp/~matumoto/emt.html,  period is 2**19937-1 it's
not a typo... about 10**6000!!!

Alessandro Coppo
a.c### [at] iolit

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