Adam Wiggins wrote:
>
> > PIII optimizations for Mesa would be great. I have a few contacts at
> > Intel so getting technical information shouldn't be too hard. I think
> > we just need to find someone with (1) Intel assembly experience, (2)
> > a PIII system, and (3) free time.
>
> For what it's worth, we put Katmai optimizations into our game
> (which had a custom renderer based on Glide) last year. Now, we had
> a pretty good reason (Intel bribed us with lots of $ and a dozen or so
> pre-release Katmai systems), but we found that the speedup to the overall
> app was in the range of 1-2%, and required massive reworking of our
> renderer data formats. In the end we didn't bother - the difference in
> framerate between a PII-450 and a PIII-450 w/ SIMD assembly optimizations
> was so minor as to be pointless, considering the cost difference.
>
> Of course, that's not to say you *shouldn't* put them in - just that
> the gain is very minimal compared to, say, 3DNow!, and unless the person
> that's going to do it simply has nothing better to do (or are specifically
> interested in it for some reason), then I would probably not bother.
(Adam meant to reply to the list)
I haven't studied them but I expected the Katmai instructions to be
comparable to the 3DNow! instructions (which seem worthwhile). Does
anyone else have similar/different experience in Katmai vs 3DNow!?
-Brian
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Brian Paul Avid Technology / Softimage [EMAIL PROTECTED]
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