Hi

>If I have three torus functions, on the x-y, x-z, and y-z planes, then a
>point p might be 3 units from one circle and 1 unit from another and 6
units
>from another and have a value of 10 and that doesn't do what I want it to,
>combine functions like they were unioned or isoblobbed.
To blob them together you could try this:
Sum up for all your functions f : 1/f(x,y,z)
To bound the values and gradients you might have to use min
(sum,someconstant). Also you will have to negate the sign-value and adjust
the threshold-value.

Well, I hope that was what I've tried lately. Can't look it up now, sorry.

Have fun

                   Bjoern

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