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Christopher James Huff wrote:
> In article <4081ceec$1@news.povray.org>,
> Dan P <dan### [at] yahoocom> wrote:
>
>
>>>The Earth doesn't really add anything by radiosity alone so I'll add a light
>>>source to it.
>>
>>Right; it's too far away.
>
> Distance has little to do with it, it is the area of sky covered and
> brightness per unit area that counts. The diameter is about 3.6 times
> that of the moon, the sky area covered is almost 13.5 times greater. The
> moon's albedo is less than Earth's, between 7% and 12% compared to 30%.
> (The lunar surface reflects light preferentially in the direction it
> came from, so it appears brighter when nearly full.)
I must be misunderstanding radiosity -- I figured because it was so far
away, it wasn't close enough to the moon to reflect any light to it
because of fall-off.
<snip/>
--
Respectfully,
Dan P
http://<broken link>
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