now. But it sounds interesting. thanks!

A big disadvantage is the fact that only two colors can be used. The
"metallic" looking insects have a nanostructured chitin hull and the effect
comes not from a pigment but from structures between interference pigments
and photonic crystals.
So some beetles show many colors dependent on the angle of the surface to
your point if view.

Norbert


> Have you seen:
>
> Subject: insect shader (50ko bu)
> Date: Mon, 15 Jan 2001 09:59:57 +0100
> Newsgroups: povray.binaries.images
> From: gemelli david <d.g### [at] xlstudiocom>
> news://news.povray.org/3A62BC0D.C65F3E08@xlstudio.com
> http://news.povray.org/3A62BC0D.C65F3E08@xlstudio.com
>
> Subject: Exoskeleton 1.5 (61 ko bu)
> Date: Tue, 16 Jan 2001 09:04:53 +0100
> Newsgroups: povray.binaries.images
> From: gemelli david <d.g### [at] xlstudiocom>
> news://news.povray.org/3A6400A5.98BB433A@xlstudio.com
> http://news.povray.org/3A6400A5.98BB433A@xlstudio.com
>
> Christoph
>
> --
> POV-Ray tutorials, include files, Sim-POV,
> HCR-Edit and more: http://www.tu-bs.de/~y0013390/
> Last updated 02 Nov. 2002 _____./\/^>_*_<^\/\.______

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