clipka wrote:

> Thinking about it, I'd suggest to go for File_Gamma: Usually the user 
> will not only expect the input files to look in the render preview as 
> they did in his image viewer, but he will also expect the output file to 
> look in his image viewer as it did in the preview, so he will typically 
> set both Display_Gamma and File_Gamma to the same value anyway. However, 
> in case the user is viewing files on a different machine (having a 
> different gamma) that he is running POV-Ray on, or if his display 
> hardware and OS have an awkward gamma but his viewing software is well 
> calibrated, the user would set the two parameters differently, and in 
> this case File_Gamma would be the better bet for input files.

I really do not see why not simply respecting the W3C/PNG recommendation 
as every contemporary browser (meanwhile even including IE) and every 
not totally brain-dead image viewer does.

-Ive

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