POV-Ray : Newsgroups : povray.pov4.discussion.general : Dithered output : Re: Dithered output Server Time
27 Feb 2024 18:23:55 EST (-0500)
  Re: Dithered output  
From: Dan Connelly
Date: 22 Oct 2008 11:18:25
Message: <48ff4441@news.povray.org>
scott wrote:
> Does anyone else think it would be a good idea to have an option to 
> produce dithered output?  If your scene consists of colour gradients 
> between two close colours, or two greys, even in 24bpp format you can 
> often still see "banding".  Using some sort of dithering scheme in the 
> output would vastly improve images like this, and would be quite simple 
> to implement.  I just wonder how the dithering would be handled across 
> block borders between different threads, maybe the thread stores 
> float/double precision pixels and then the final "block assembler/file 
> writer" code will perform the dithering on the whole image?
> Just an idea.

I think crand can accomplish this, although it isn't applied scene-wide, but to
specific textures.

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