In article <3e986b8b@news.povray.org>,
 "Tim Nikias v2.0" <tim### [at] gmxde> wrote:

> Make that disc-position - camera-position, then you
> get the normal pointing from the disc-position towards
> the camera.

Camera position - disc position, actually. Though the only situation I 
can think of where this makes a difference is when you give the disc 
media, which is pretty useless, or if you specify inside_texture for 
some reason.


> Additionally, put a "hollow" in the disc, in order not
> to screw up medias you might have placed.

Yes, I forgot to mention this in my message.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/

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