In article <3a06cab1@news.povray.org>, "Zeger Knaepen" 
<zeg### [at] studentkuleuvenacbe> wrote:

> Why per-object?  Why not per-pigment or even per-color!  Much more 
> flexible, I think...

Objects are on/off, it is there or it isn't, which means POV only has to 
decide whether or not to do a filter. Pigments can blend, which would be 
difficult get right, if it even makes sense. Even if something like this 
is done, I think controlling it with the pigment would be a very bad 
idea...some kind of post_process_map texture element would be better.

As for colors...that would probably be useless in nearly all cases, 
since you may hit that same color somewhere in your image where you 
don't want that post process filter done, and once you do anything like 
fog, media, or anything that alters the appearance of an ambient 1 
texture, it will no longer be recognized.

Object controlled filters would be easier to use, lower in memory 
use(you only need one object map instead of a bunch of alpha maps), 
easier to code, and just make more sense.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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