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Unfortunately for many, who are not math inclined, even to this extent,
the first is easier.
Chris Huff wrote:
> In article <3A0A0986.10DA189E@mail.com>, Ben Birdsey
> <cla### [at] mail com> wrote:
>
> > Try using a quartic is oriented along the z-axis.
>
> I prefer isosurfaces myself, though they currently require a patched
> version of POV. I mean, which is easier? This:
>
> quartic{
> < 0, 0, 0, 0, 0, 0, 0,
> xxzz, 0, 0, 0, 0, 0, 0,
> 0, 0, 0, 0, 0, 0, 0,
> 0, 0, yyzz, 0, 0, 0, 0,
> 0, 0, 0, 0, zz, 0, const >
> ...
>
> or this:(Not exactly the same as your function, but it should give you
> the general idea)
> isosurface {
> function {z - 1/sqrt(sqr(x) + sqr(y) + 0.01)}
> threshold 0
> ...
>
> --
> Christopher James Huff
> Personal: chr### [at] mac com, http://homepage.mac.com/chrishuff/
> TAG: chr### [at] tag povray org, http://tag.povray.org/
>
> <><
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