On Sat, 31 Mar 2001 23:03:49 +0200, Peter J. Holzer wrote:
[lots of reasons why precision can be nonintuitive in POV]

There's another reason you might have missed: the actual number that
POV uses to determine whether and where an intersection took place might
be much larger or smaller than the dimensions of the object.  Some 
surprisingly common objects might use the square of a dimension, which
has of course roughly double the exponent and can be a lot larger or
a lot smaller than the primary dimension of the object.

-- 
Ron Parker   http://www2.fwi.com/~parkerr/traces.html
My opinions.  Mine.  Not anyone else's.

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