Vahur Krouverk wrote:
> 
> Somewhat off-topic for this group my message will be, so I set followups
> to unofficial.patches (this is the very first time I use this feature,
> so probably I just make mess of it ;-)
> 
	Not at all, it worked :)

> With all this post processing I thought that for implementing it similar
> approach to my shader patch could be used: user writes post-processing
> filter in "shading language" (C-alike syntax with common graphical
> operations and types: color, point, normal, vector), compiles it into
> byte-code and it is "added" to scene in POV-Ray script for
> post-processing. 
	The advantage of having an external program to handle the post
processing is that you don't have to rerender the whole image just to
try a new post process effect. Another advantage I saw in the idea of
having one external program for each effect is that people who want to
write a post-process filter could do so in their favorite language
without having to learn a new one. Of course, somebody could always
program a "shader-like post-process filter" that works in the way you
describe...


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