Mike Williams wrote:

> If you remove the y, then your surface will always be only a series of x
> planes. Typing [snip]

But that's what I want. I'm saying I want f(x) to be a sawtooth wave, not the
surface itself. (Actually, all values below zero would be considered inside the
object too.) Problem was I got an *extra* plane; see the original picture.


--
David Fontaine  <dav### [at] faricynet>  ICQ 55354965
My raytracing gallery:  http://davidf.faricy.net/

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