POV-Ray : Newsgroups : povray.off-topic : Sky : Re: Sky Server Time
29 Jul 2024 08:12:43 EDT (-0400)
  Re: Sky  
From: Patrick Elliott
Date: 15 Jun 2012 23:01:55
Message: <4fdbf723$1@news.povray.org>
On 6/15/2012 10:48 AM, clipka wrote:
> Am 15.06.2012 17:14, schrieb Warp:
>> Le_Forgeron<jgr### [at] freefr> wrote:
>>> If the sky is "blue", why do you see a yellow sun ?
>>
>> The sun is not yellow. It's white.
>
> That depends on the color space.
>
> In sRGB (whitepoint = D65 = ~6500K), the sun is a pale yellow.
>
> In Wide Gamut RGB (Whitepoint = D50 = ~5000K), the sun is actually a
> pale blue.
>
> If you use a color space with the equal-energy point (E) as whitepoint,
> the sun is even a pale green.
>
>
> That's both for the sun's /actual/ color (without atmospheric effects,
> i.e. as seen from space) of ~5900K, as well as the sun's apparent color
> on earth at daytime of ~5500K.
Umm. So which color space is this one: 
http://www.vendian.org/mncharity/dir3/starcolor/ lol

Though, it appears to be the D65, but with the color actually being 
"slightly off" that value, enough that it gets more.. peach colored.


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