POV-Ray : Newsgroups : povray.programming : Radiance HDR and the GAMMA header field : Re: Radiance HDR and the GAMMA header field Server Time
25 Apr 2024 06:38:30 EDT (-0400)
  Re: Radiance HDR and the GAMMA header field  
From: Ive
Date: 10 Sep 2009 13:05:37
Message: <4aa931e1$1@news.povray.org>
clipka wrote:
> Does anyone know *any* software that either reads or writes a GAMMA 
> field in the Radiance HDR file header (I mean, except for POV-Ray 3.7 
> betas), or even happens to know how to properly interpret the field?

There is no such thing like a GAMMA field in the Radiance HDR file 
header therefor any other software correctly assumes that the image data 
is in linear color space.
Anything that follows the #?RADIANCE signature besides the two possible 
strings:
"32-bit_rle_rgbe"
"32-bit_rle_xyze"
and the +X / +Y image size definition is nothing else but a comment and 
as such you can write there whatever you like but cannot expect that 
someone else will make use of it.


-Ive


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