Re: Help for pfDCS class !

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Sharon Clay (src++at++rose.asd.sgi.com)
Sun, 18 May 1997 00:38:42 -0700

+>---- On May 16, 3:04pm, Jeremy Friesner wrote:
> Subject: Re: Help for pfDCS class !
->
->Just out of curiosity, is calling pfDCS::setCoord() more efficient
->then calling pfDCS::setTrans() followed immediately by pfDCS::setRot() ?
->It seems to me that calling setCoord() might mean only one bounding
->volume recalculation, as opposed to two the other way.

Actually, they'll be the same if after setCoord you also call
pfDCS::setMatType(). setRot and setTrans set the matTypes automatically
and for known mat types we can do various optimizations.

We do the volume re-calcs once a frame as part of the clean
operation in pfSync() (unless you do an explicity get of
a volume that is dirtied by the above set).

src.

-- 
-----{-----{---++at++   -----{----{---++at++   -----{----{---++at++   -----{----{---++at++
Sharon Rose Clay (Fischler) - Silicon Graphics, Advanced Systems Dev.
src++at++sgi.com  (415) 933 - 1002  FAX: (415) 965 - 2658  MS 8U-590
-----{-----{---++at++   -----{----{---++at++   -----{----{---++at++   -----{----{---++at++
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