Warp wrote:
>  Perhaps you could post a small piece of SDL demonstrating the effect?

Here:

#declare SeedNr = 0;
#while (SeedNr<50)
   #declare Seed = seed(SeedNr);
   #declare RandNr = 0;
   #while (RandNr<10)
      #declare Rand = rand(Seed);
      sphere {0, 0.1 translate <SeedNr/5-5,Rand-RandNr*2+10,25>}
      #declare RandNr = RandNr+1;
   #end
   #declare SeedNr = SeedNr+1;
#end
background {rgb 1}

As can easily be seen, any sequence generated from the n'th random number 
from seeds 1...m is be completely linear.

And as previously stated, this is a feature, not a bug. I've been told 
earlier when I asked myself.

Rune
-- 
http://runevision.com

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