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In article <3d8edcda$1@news.povray.org>,
"Tom Melly" <tom### [at] tomandlu couk> wrote:
> Also, I was surprised to read that changing the camera position was okay. This
> implies that photons are mapped to objects rather than positions. Is there an
> idiot's explanation as to how photons work in Pov?
It just means that the camera position doesn't matter. Why should it?
The camera doesn't emit photons and doesn't interact with them. As for
position vs. object: a photon at < 1, 2, 3> is a photon at < 1, 2, 3> no
matter where the camera is. POV might keep track of which photons hit
which surfaces (I don't know, I haven't looked at the source), but that
has no effect on whether or not you can move the camera.
--
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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