<jbe### [at] tapasmailnet> wrote:

> 	Maybe, but OTOH you don't need to specify a color where the object is
> fully transparent, so their patterns are related. I've never felt the
> need to specify transparency independently from color...

Simplest case: a multicolored transparent ball which is evenly 
transparent and has a big color_map. You decide you want to change the 
amount of transparency...you have to change every color in the 
color_map. If you had it specified in a separate block, you would only 
have to change one value. It would also make specifying transparence for 
image_maps a lot easier.

It becomes an even better idea when you add blurred transparency, etc.
Other programs do it because they often use image maps that use the 
alpha channel to define transparency...but does *tranparency* really 
belong in a *color*? Especially in POV, where image maps are relatively 
rarely used.

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

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