Nathan Kopp wrote in message <382a420a@news.povray.org>...
>There is a bug in UVPov, but it's probably not exactly what you'd expect.
>I'll paste in a modified version of your code that does show photons in
>media.  The problem is that UVPov incorrectly handles cylinder lights.  It
>does not shoot parallel rays, so the photons coming out of cylinder lights
>act more like photons coming out of a spot light.  I thought I documented
>this, but I guess I didn't.  The moral of the story is to use spot lights,
>not cylinder lights.  I'll eventually fix cylinder lights.  Someday.
>


Thanks

Mark

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