> I am probably misunderstanding you here because you seem to suggest blobs
> are _not_ based on exponential functions?

They're based on the function

density = strength * (1-(distance/radius)^2)^2

which, I believe, is a "power" function, not an exponential one. A
non-constant would have to be in one of the powers for it to be exponential.

 - Slime
[ http://www.slimeland.com/ ]

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