

"Chris R" <car### [at] comcastnet> wrote:
the problem area. contained_by{ sphere{0,5*Radius scale<1, 1000, 1>} }
>
> Sorry, I should have been clearer in labeling the variables. For any given
> object, Radius and Height are fixed values, while x, y, and z vary over the
> isosurface boundaries. So, pow(y/Height,2) and sqrt(y/Height) both range
> between 0 at y=0 and 1 at y=Height.
I'd say that it's likely a math problem rather than an isosurface problem.
Best bet is to post a sample scene so we can render it and play with the
equations.
Also, what I would do in debugging my own code would be to graph the values of
the terms and the overall expression in a spreadsheet, and see if anything is
revealed.
 Bill
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