Ken wrote in message <37974054.E309C52B@pacbell.net>...
>
>
>Alan Kong wrote:
>
>>   Hi, Nathan. It's been many years but I once did an impromptu comparison
to
>> see how much difference manual bounding could make on simple shapes or
CSG
>> objects.
>> --
>> Alan
>
>  I have had signifigant success manualy bounding certain types of csg
>operations. Particularly an object or group of objects created within
>a loop and then a csg applied to the that or during the loop. I have
>seen as much as a 50% increase in rendering times depending upon the
>number of objects and how many are intersected by the csg'ing object.


However, if manual bounding of a CSG object is done wrong or unneccesarily,
it can result in an order of magnitude slowdown.

Mark

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