In article <3da89baa@news.povray.org> , "Rune" <run### [at] mobilixnetdk>
wrote:

> I don't know exponential functions very well, but I agree that it
> shouldn't be that difficult to get smooth blobs, and that it would only
> require the individual blob components to use functions whose second
> derivatives match up.

I am probably misunderstanding you here because you seem to suggest blobs
are _not_ based on exponential functions?  They are [1]...

    Thorsten


[1] An Introduction to Ray Tracing, page 97/98

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

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