POV-Ray : Newsgroups : povray.bugreports : Grayscale_Output=yes doesn't work : Re: Grayscale_Output=yes doesn't work Server Time
3 Oct 2023 07:04:32 EDT (-0400)
  Re: Grayscale_Output=yes doesn't work  
From: clipka
Date: 16 Mar 2015 15:43:37
Message: <55073269$1@news.povray.org>
Am 16.03.2015 um 19:01 schrieb Leroy:

>> Making the preview exactly reflect the output image in every respect
>> would be excessively difficult. (As an extreme example, reproducing
>> jpeg artifacts according to the quality settings chosen would require
>> to actually generate the jpeg image and then convert it back.
>> Obviously that can only happen once the image is completely rendered.
>> The same goes for some dithering options at low bit depths.)
>> For consistency, it
>> is therefore the current policy to always preview the render at
>> maximum quality regardless of the output file format and quality
>> parameters.
> So does that means the display option +Dxy have deprecated functions too?

Um... actually, no: In the Windows version they don't have any functions 
at all :P (Don't know about Unix off the top of my hat, but there it 
either does something non-deprecated, or nothing at all either.)

Those options certainly date back to the DOS versions (or even earlier).

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