You seem to know these built-in-functions well!

I've played with them, but never got anything to work. So I decided to give
your source-files a try. I fired up algbr015.pov (Duphin_Cyclid-thing), and
it worked fine! However, when I tried to make my own scene, I found that it
seems the behaviour of these bulit-in functions are somewhat erratic. For
example, when _removing_ the last four lines of algbr015.pov, the ones
placing the transparent container, the Isosurface only shows something like
a solid ball! And without affecting the code for the iso at all.

Du you know why such things happen (stuff like this happen to my isos all
the time), and mayby how to avoid/predict them?

Simen.


Mike Williams skrev i meldingen ...
>I've substantially updated my isosurface tutorial at
><http://www.econym.demon.co.uk/isotut>.
>
>There's now an almost[1] complete catalogue of the built in functions,
>and each page now contains a zip file of all the sources used for the
>images on that page. So pop by if you've ever wondered what the Kampyle
>of Eudoxus looks like, or want know what various parameters of the
>func_16 surface do.
>

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