3e0d620d@news.povray.org...
> How this is done? Simply using the regular radiosity algorithm in
POV-Ray?
> Or is there a new algorithm for this as well?
From what I've understood, there's nothing really new in the way POV-Ray
handles radiosity itself, it's the map that does all the work and that's the
real beauty of it. The radiosity itself is traditional but because light
intensity has a much wider range in the HDR map than in a usual map (like in
the real world) it makes the results much more natural-looking, even in the
absence of specular highlights. This becomes clearer if you load HDR maps in
HDRShop (at Paul Debevec's page http://www.debevec.org) and play with the
exposure settings. The maps then reveal themselves in their 2 dimensions
(color and light intensity).
G.
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