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So, how does povray perform on a mac anyway?
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In article <3a9981ee@news.povray.org>, "Ed Kaiser"
<eka### [at] camden tdsnet> wrote:
> So, how does povray perform on a mac anyway?
Well, could you be more specific?
The images are the same, of course. As I understand it, the PowerPC
processors used in modern Macs aren't as strong on the FPU side as some
other processors, so a G3 Mac will render more slowly than an Athlon and
probably a Pentium III, if all else is equal (which is, of course, not
possible). I don't know how much slower, though...I'm pretty happy with
my computers. (a 266MHz and a 350MHz G3 Power Mac)
I don't know about the new G4's, they've apparently improved the FPU
performance with the latest version, along with the AltiVec (Velocity
Engine) SIMD stuff (which won't help any current version of POV).
System performance while rendering? If I have POV set to hog the CPU,
things get very sluggish on both my 266MHz G3 and my 350MHz G3 when
running Mac OS 9. If I set it to normal or very light usage, there is
barely any noticeable impact. I haven't done anything with the Carbon
version of MacMegaPOV under OS X, so I don't know how much of a
difference that makes for either rendering speed or system performance.
However, you should be able to disable the GUI in OS X, to squeeze out
every cycle of processor power.
In the "Classic" Mac OS (versions 9.1 and lower), the memory system has
you specify the amount of memory to allocate for POV, and the virtual
memory is not very good. OS X is a huge improvement in this area,
programs can grab more memory as needed, and things should go a lot
faster if they have to use virtual memory, so this is another factor if
you often render memory-consuming scenes.
--
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/
<><
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The G4 has *greatly* improved FPU speed. Also, if your comparing CPU speeds,
don't forget to take the OS into account. Linux, for exaple, is many times
faster then Windows (I know).
______
David McCabe
mcc### [at] yahoocom
http://homepage.mac.com/davidmccabe/
Jesus loves you!
> I don't know about the new G4's, they've apparently improved the FPU
> performance with the latest version,
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In article <B6BFE2D7.4246%mcc### [at] yahoocom>, David <mcc### [at] yahoocom>
wrote:
> The G4 has *greatly* improved FPU speed.
Over the G3. I was speaking of the most recent G4 machines compared to
earlier G4's, sorry if that wasn't clear. The recent G4's apparently
have a better FPU, and I don't know how it compares to the processors
used in PC's.
> Also, if your comparing CPU speeds, don't forget to take the OS into
> account. Linux, for exaple, is many times faster then Windows (I
> know).
I took OS into account, though I didn't mention Linux. He said a Mac, so
I only mentioned differences between Mac OS 9 and earlier and Mac OS X.
--
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/
<><
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Chris Huff wrote:
>
> In article <B6BFE2D7.4246%mcc### [at] yahoocom>, David <mcc### [at] yahoocom>
> wrote:
>
> > The G4 has *greatly* improved FPU speed.
>
> Over the G3.
Really? I have tried myself to render with LightWave 5.6 on a G3/400 B&W and on my
G/400 and I noticed a raw 10% increment in rendering speed.
Wich I should not state as "*greatly* improved"...
As well, my G4/400 is only a bit slower than a Athlon 600. With LW 5.6...
*** to answer by mail remove "X" from my address ***
\--------------------------------------------------------\
\ Diego Krota http://www.geocities.com/dkrota \
\-------\------------------------------------------------\-------\
\ Never do anything you wouldn't be caught dead doing \
\--------------------------------------------------------\
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Diego Krota <Xdk### [at] yahoocom> wrote:
> Really? I have tried myself to render with LightWave 5.6 on a G3/400 B&W and on my
G/400 and I noticed a raw 10% increment in rendering speed.
> Wich I should not state as "*greatly* improved"...
An increase in FPU speed does not translate to an equal increase
in rendering speed...for more information:
http://mac.povray.org/support/faq.html#what_aboutg4
--
Christopher James Huff - chr### [at] maccom
Home Page: http://homepage.mac.com/chrishuff/
POV-Ray TAG e-mail: chr### [at] povrayorg
POV-Ray TAG web site: http://tag.povray.org/
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