In article <3ebc71a5@news.povray.org>, Tim Cook <z99### [at] bellsouthnet> 
wrote:

> Christopher James Huff wrote:
> > Why? It's more work, possibly slower...what possible reason is there for 
> > doing this?
> 
> See my media wheel I posted a few ago in p.b.i ...negative absorption
> and positive scattering give a scene that, if you don't have any
> media-interacting lights, looks the same as (and afaict renders as
> quickly as) the same scene without media, but you can turn on a media
> interacting light and have it interact.

Have you actually tried setting extinction to 0?

-- 
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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