If one uses blobs in  povray to make a hand or a body with legs, one can
run into one of several problems:

1. The fingers or legs may web together when they get close if the two
limbs are in the same "blob;"  OR

2. The joint may not look that natural if the two limbs are in different
blobs.

I have heard that more advanced modelling packages have a way to set up
hierarchical relationships between the limbs. For example, the elements
that make up the fingers may blob with the wrist and elements of the
same finger, but not elements of other fingers.

_________________
Greg M. Johnson
"The program I just wrote is a patentable, new technology," said the CS
to the Fellow of the Materials Research Society.

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