3f1545be@news.povray.org...
> from Gilles Tran (hm, come to think about it, I realize
> that I haven't mentioned that on my website yet...).

Don't mention me. It has been around for a while. All the following is IIRC
(the posts are buried in p.b.i) : Kari Kivisalo came up with the 2-pass
method because JRG was stuck with a rad scene involving glass. Jaime Vives
Piqueres discovered that having a first pass at a smaller resolution didn't
harm. Ingo also played with this for creative purposes etc.

G.

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