In article <cja### [at] netplexaussieorg>,
 Christopher James Huff <cja### [at] earthlinknet> wrote:

> > By the way, isn't this kind of like the proximity pattern? (I never used 
> > it, so I don't know).
> 
> Not really, though it can resemble it in shape. The proximity pattern 
> was based on distance to the surface. This is based on the proportion of 
> nearby space taken up by the volume of the object. It is basically a 
> blurred object pattern.

BTW, the "sub-surface scattering" pattern using the projection pattern 
is quite similar to a "visibility" pattern I was working on, which was a 
very close relative of the proximity pattern and was intended to be used 
for patinas. It could be a bit closer to a proximity pattern if the 
projection pattern depended on distance...

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/

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