POV-Ray : Newsgroups : povray.binaries.images : Stock colors and assumed_gamma 1 in POV-Ray 3.6 : Re: Stock colors and assumed_gamma 1 in POV-Ray 3.6 Server Time
3 May 2024 03:46:25 EDT (-0400)
  Re: Stock colors and assumed_gamma 1 in POV-Ray 3.6  
From: Kenneth
Date: 30 Oct 2020 18:30:01
Message: <web.5f9c938576c60ba8d98418910@news.povray.org>
Ive <ive### [at] lilysoftorg> wrote:
> Am 10/28/2020 um 12:05 schrieb Bald Eagle:
> >
> > But let's say someone borrows a nice texture that has srgb keywords
> > sprinkled throughout its declaration.  The color that pigment color values
> > that get "exposed" to the other elements in the scene are still just - rgb,
> > correct?
> >
> Absolutely...[snip]
> As long one is aware that rgb has to be followed by an linear color
> expression everything is fine while on the other hand an expression like
> rgb <220, 32, 80>/255 together with assumed_gammma 1.0 cries out to
> produce an unwanted result.

Sorry, I was just re-reading the posts here. Did you mean to say
    srgb <220, 32, 80>/255  there?

I assume from what's been said that  rgb <220, 32, 80>/255 is the same as
rgb <0.8627,0.1255,0.3137> -- simple division in 'linear' rgb space.

Whereas SRGB <220, 32, 80>/255 would be the one that "cries out to produce an
unwanted result".

Correct?

(or perhaps I was reading your comment somewhat out-of-context, and that you did
mean  rgb <220, 32, 80>/255 as *turned into*  SRGB <220, 32, 80>/255, with the
warning.)

Just wanted to make sure :-)


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