Yup, that's about what I'm looking for.  Thing is, no one in that thread
posted any links to Pov source to achieve it.  Since I'm a total neophyte
to Pov, such source would be very helpful.  Do you know where I can get it?

"Bob Hughes" <bob### [at] charternet> wrote:
> "ZainAnak" <nomail@nomail> wrote in message
> news:web.42dc3438ea2831f43b6b98ba0@news.povray.org...
> >
> > I'm noticing, though, that there is a subtle element of glow I'm missing
>
> Your question reminds me of what Samuel Benge had done a while back so I
> searched for his post at the web view of binaries.images and found it.
>
> news:40D### [at] hotmailcom
>
> Or at the web view for the whole thread:
>
> http://news.povray.org/40DB67BE.1080608%40hotmail.com
>
> Summed up, his idea was to use the rendering applied over itself but with
> darker parts transparent so only bright parts could be diffused into the
> picture. Not a one-step process, but did what I think you're asking about.
> Unless you only wanted to get better illumination like that seen in the top
> of that left archway of your linked-to image.
>
> Other than that, maybe MegaPOV or another custom POV could do this sort of
> thing. I haven't used anything else but the official versions lately.
> Perhaps someone else might come along with suggestions anyway.
>
> Bob Hughes

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