In article <3C6AE046.5D095B2C@scifi-fantasy.com>,
 "Timothy R. Cook" <tim### [at] scifi-fantasycom> wrote:

> So because it can't be done for everything, it isn't done at all.

It would be very difficult, probably requiring a rewrite, and about the 
only thing it would work for would be triangles and polygons. Even 
spheres would probably be too difficult...where's the edge of an 
unevenly scaled and rotated sphere? And then you have things like the 
different camera types, camera normals, etc, which would make it 
unuseable for any object...
It is simply not worth implementing for the few cases it would actually 
be any help.

POV is a raytracer, it only knows where the surface of an object is by 
intersections with rays, it is not aware of the "edges". The only way to 
do it for most objects is to take samples, which is exactly what is done 
now.

-- 
Christopher James Huff <chr### [at] maccom>
POV-Ray TAG e-mail: chr### [at] tagpovrayorg
TAG web site: http://tag.povray.org/

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