I usually set ambient_light to rgb 1 and then go through and make sure that
all objects in the scene that I do not specifically wanted to emit light are
set to ambient 0.  For things like the sky, I ramp up the ambient value as
high as the scene will permit (for example, 1.5 or 2).  Yes, the sky or
whatever looks overexposed, but it would also probably look like that in a
photo.

At least this is my theory.

Aaron




"Bryan Valencia" <bry### [at] 209softwarecom> wrote in message
news:406b003f@news.povray.org...
> I'm trying an outside scene on a cloudy day... it's the grass scene I have
> been posting.
>
> But the sky_sphere is always beautifully lit, while the rest of the scene
is
> essentially black.
>
> Here are my settings, what's wrong?
> global_settings {
>  assumed_gamma .8
>  ambient_light rgb .3
>
>     radiosity {
>       pretrace_start 0.08
>       pretrace_end   0.01
>       count 500
>
>       nearest_count 10
>       error_bound 0.02
>       recursion_limit 1
>
>       low_error_factor 0.2
>       gray_threshold 0.0
>       minimum_reuse 0.015
>       brightness 1
>
>       adc_bailout 0.01/2
>     }
>
>
>
>

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