Slime wrote:
 
> Does this idea make sense to everyone? Am I clear enough?
>

I can understand it...
 
> Mainly I'm bringing this up because it seems like it could be very powerful.
> The regular expression syntax could be simplified somehow to make it easier
> for new users, perhaps. Does this seem *possible* to implement? Worthwhile?

Possible : probably with a little tracking of the succession of rays,
           problems I foresee might be the possible infinite length of the string
           and the infinite number of strings for one object (because a single regex
           is far too limited until you introduced the |.

Worthwhile: what is the current percentage of use of no_shadow / no_image /
no_reflection
?
            what would be the usage of such extension ?
            probably none, at least for most of the realistic render, and
            only causualy for very few thematic scenes.
        
> I also bring it up because I may not have the ambition to actually implement
> it, but perhaps there is someone else who is excited by the idea and might
> want to implement it. I don't say this out of laziness, but for the good of
> the community.

I'm not excited... at least not by that... :->

> So... what are your thoughts?

Read my previous answers (too much complexity for nothing).

-- 
Non Sine Numine
http://grimbert.cjb.net/
Etiquette is for those with no breeding;
fashion for those with no taste.

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