Lowering 'gray_threshold' nearer to zero helps to blend more color
from objects than the default of 0.5, that can sometimes help to show
more radiosity than would otherwise be seen (doesn't brighten it
though).  Also reducing 'distance_maximum' will tighten the blending
closer and thus seems to make it brighter if a lower 'count' is used.

Bob

John M. Dlugosz <joh### [at] dlugoszcom> wrote in message
news:37d091a5@news.povray.org...
>
> Xplo Eristotle <inq### [at] unforgettablecom> wrote in message
> news:37D### [at] unforgettablecom...
>
> > If you're having light coming in through a large aperture, such as
a
> > window or a skylight, using an area light roughly the size of the
> > aperture (preferably a fairly complex one, if you have the power
to
> > render it) is probably the right way to go. Then, just render it
with
> > the radiosity and see what happens.. it's entirely possible that
the
> > objects in the room (most notably the walls.. real walls reflect a
LOT
> > of light) will provide all the fill light you need/want. Then, if
you
> > still need spot lighting, you can go and add that back in without
> > changing the overall lighting model very much.
>
>
> I don't think so -- the sun casts sharp shadows.  Ah! at least
that's what
> it looks like in Dallas, with a clear sky and no clouds at all.  On
an
> overcast day, you get even illumination from the sky.
>
> As for using radiosity, I'll have to play with the numbers to see if
I can
> get it to "work".  I suppose varying the distance_maximum is enough
to get
> it working, or will I have to explore more degrees of freedom?  My
earlier
> try basically didn't work.
>
> --John
>
>

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