Hi there,

Sorry to butt in so late, but !
IMHO this should really be handled at C level. I know programming is
not that easy. But really what you are talking about is just an iso
surface function. So why not benefit of what the isosurface has to
offer to you.
It's there, already programmed, accessible for whatever purpose : not
just tracing, but evaluating the value at any point you wish.
I hope I'm not wrong in my assumptions, but I really think the answer
is there at your finger tips : use the superpatch.

Cheers,
Al.


Peter Popov wrote:

> Greetings all.
>
> Suppose I have a sphere that is electrostatically charged. The
> intensity of its field at any point in space is proportional to the
> reciprocal squared distance, and the vector points away from the
> sphere. For a plane, it's easy. I think I can manage torii, cylinders,
> and cones. Even non-smoothed meshes.
>
> How about a smoothed mesh? OK, I have all the vertices and
> corresponding normals stored in two arrays, but then what? How should
> I proceed to calculate the field vector and intensity at an arbitrary
> point in space?
>
> And yeah, I am talking about POV script here, not C :)
>
> Thanks in advance for any help.
>
> Peter Popov
> ICQ: 15002700

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