POV-Ray : Newsgroups : povray.unofficial.patches : Color space conversion? : Re: Color space conversion? Server Time
2 Sep 2024 06:15:31 EDT (-0400)
  Re: Color space conversion?  
From: Vahur Krouverk
Date: 4 May 2000 06:26:06
Message: <391150A8.6774FDF8@aetec.ee>
Ron Parker wrote:
> 
>On Wed, 03 May 2000 08:10:44 +0200, Vahur Krouverk wrote:
>>I think that in order to limit number of functions, "orthogonal"
>>approach should be used, i.e. conversion functions only from/to rgb
>>should be implemented (this is how my conversion currently works).
> This limits the range of colors to the gamut that's supported by RGB.
> I suppose that shouldn't be a problem, since output is in RGB anyway,
> but it's worth thinking about.
> 
This shortcut allows me to get away with 10 conversions instead of 30. 

> Also, how do you propose to wedge, say, a CMYK color into a COLOUR?
> Or are you just planning to not implement CMYK?
> 
No, I'm not going to support CMYK. There is number of reasons:
Firstly, because RM SL does not support it (it supports 6 above
mentioned color spaces, AFAIK) and I want to make this patch as
compatible with RM as it would be possible.
Secondly, I don't think, that CMYK is needed for POV-Ray. If someone
wants to print picture, then it would be better to leave this process to
dedicated software, I don't want to see POV-Ray as bloatware, supporting
42.
In total there is dozens of different color spaces and I don't think,
that they all should be supported. Color conversion is tricky thing and
I don't want to spend too much time on this. I don't think, that this
color conversion is used very much anyway, perhaps sometimes
RGB<->HSL(HSV), but no more.


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