POV-Ray : Newsgroups : povray.binaries.images : assumed_gamma makes a lemon out of U and my orange : Re: assumed_gamma makes a lemon out of U and my orange Server Time
8 Aug 2024 06:21:48 EDT (-0400)
  Re: assumed_gamma makes a lemon out of U and my orange  
From: Patrick Elliott
Date: 15 Nov 2005 21:04:44
Message: <MPG.1de44179a6dd9d45989e5c@news.povray.org>
In article <437a37a8$1@news.povray.org>, spa### [at] spamcom says...
> > Note of doom 1: chances are, the source image will probably be
> > converted from a PNG to a JPEG by a news server or blog site.
> > Doing that will either adjust it for a 2.2 display or drop the
> > gamma altogether, leaving it suitable only for the creator's
> > display.  To test this, I have attached a POV render of the
> > following scene.  The image gamma is an obscene 30, which has
> > caused all the 128/255 colour values to be elevated to 249/255.
> > When viewed in a gamma-aware viewer, the "outside" three squares
> > are much darker than the inside three, and the bottom right
> > quadrant is more orange than yellow.
> 
> Rather amusingly, Outlook Express displays it as intended, and PaintShopPro 
> screws it up :-)
> 
Was noticing that myself, at least about PSP. Figured maybe its just that 
I am using 6.0, and later ones work right. Spent an hour trying to figure 
out how, or even 'if', you could get it to work right. :(

-- 
void main () {

    call functional_code()
  else
    call crash_windows();
}


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