Not sure how much color switching (or what kind) you mean but I've got
both a sample image and script I used to make it with. I'll post to the
images group and text files group shortly.
Maybe it'll help explain.

Ron Parker wrote:
> 
> On Tue, 09 Feb 1999 02:02:13 -0600, Bob Hughes <inv### [at] aolcom> wrote:
> >There seems no doubt this must be wrong. Since if the rgb 0 is showing
> >in one reflection yet none of the other multiples, and you would expect
> >it to not show at all if it is a case of "non-contributable color" or
> >some such.
> >I can't see how this effect has been overlooked before so it's probably
> >been encountered before and maybe ignored.
> >Using the Windows version 3.1 r1
> 
> I assume you've tried switching the pigments around to make sure it's
> a color problem and not just a trick of geometry.  If that is the case,
> and it's still broken, can you show us a simple scene that demonstrates
> the problem?

-- 
 omniVERSE: beyond the universe
  http://members.aol.com/inversez/POVring.htm
=Bob

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