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"Kenneth" <kdw### [at] earthlink net> wrote:
> "Stephen" <mcavoys_AT_aolDOT.com> wrote:
>
> >
> > realistic. It looks like hydrocarbons flaring off. The burning town is so
> >
> Thanks!! (And I like that description--'flaring hydrocarbons'. Great!)
flares. I made it my job to tell someone if they went out.
> The "halo" above the rising gasoline fire in the center is one of the few
> things in the scene that's not 3-D. I didn't want to use media to get that
> effect, so I rendered the 3-D gas fire just by itself, against blue (like a
> bluescreen), then took that into Photoshop, made high-contrast B&W artwork
> of it, blurred that, turned it into an alpha-channel, then re-applied it in
> POV-Ray to a thin box, as an image_map. The box is placed behind
> the real gas fire in the scene, and lit only with colored ambient light.
> Kind of a cheat, eh? :-)
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