Ive schrieb:
> 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.

That's what I suspected after googling arund. Interestingly, not even 
POV-Ray 3.7 betas make any use of that field when encountering it in 
input images.

Ah, I guess I did open one or two cans of worms when deciding to try and 
improve the gamma handling of input files...

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