POV-Ray : Newsgroups : povray.binaries.animations : CIELCHuv D65 gamut sphere : Re: CIELCHuv D65 gamut sphere Server Time
7 Jun 2023 21:04:01 EDT (-0400)
  Re: CIELCHuv D65 gamut sphere  
From: clipka
Date: 25 Mar 2017 18:14:31
Message: <58d6ebc7$1@news.povray.org>
Am 25.03.2017 um 22:38 schrieb Mike Horvath:
> On 3/25/2017 4:19 PM, clipka wrote:
>> Am 25.03.2017 um 18:36 schrieb Mike Horvath:
>>> On 3/25/2017 11:38 AM, clipka wrote:
>>>> In this HSL solid, S
>>>> is quite clearly measured radially from the vertical axis.
>>>>
>>>
>>> Nope. It is from the center point too.
>>
>> Just read up on HSL, and you are right: In your spherical HSL diagram,
>> the distance from the center of the spehere does indeed correspond to
>> the parameter called "Saturation" in the HSL model.
>>
> 
> https://commons.wikimedia.org/wiki/File:HSLSphere.svg
> 
> Is this image easier to understand? It is missing the "donut hole" in
> the middle, however. So all the grays collapse to a point, unfortunately.

No, it's the HSL model's definition of "Saturation" in general that I
find counter-intuitive, not your visual representations of the HSL
colour solids.


> I labeled all the images as "original research", and nothing links to
> them except a user page.

Fair enough.


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