In article <QIIIcAALs+V$EwOz@econym.demon.co.uk>,
 Mike Williams <mik### [at] econymdemoncouk> wrote:

> POV automatic bounding works for unions, but it doesn't work for
> differences, which is basically the whole point of the holes tutorial
> page I mentioned.

It does work in most cases, but does not produce bounds that are as 
optimal as what a human looking at the involved shapes could come up 
with. The same goes for intersections...I think POV simply intersects 
the bounding boxes, which can result in very loose bounding. Your 
message implied that there was no bounding done at all.

-- 
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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