POV-Ray : Newsgroups : povray.windows : POV and AMD's 3DNow instructions Server Time
24 Nov 2024 10:56:50 EST (-0500)
  POV and AMD's 3DNow instructions (Message 1 to 6 of 6)  
From: Duncan Webb
Subject: POV and AMD's 3DNow instructions
Date: 18 Sep 1999 09:13:54
Message: <37e39012@news.povray.org>
Does anyone know of a build of POV 3.1 that uses the 3DNow floating point
support on AMD K6-2 & K6-3 processors?

Many thanks,

Duncan Webb


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From: Ken
Subject: Re: POV and AMD's 3DNow instructions
Date: 18 Sep 1999 10:20:08
Message: <37E39F19.1E5B98B9@pacbell.net>
Duncan Webb wrote:
> 
> Does anyone know of a build of POV 3.1 that uses the 3DNow floating point
> support on AMD K6-2 & K6-3 processors?
> 
> Many thanks,
> 
> Duncan Webb

  I have heard a lot of people ask about it but I have never heard of anyone
actualy doing anything about it.

-- 
Ken Tyler

See my 1000+ Povray and 3D Rendering and Raytracing Links at:
http://home.pacbell.net/tylereng/index.html


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From: TonyB
Subject: Re: POV and AMD's 3DNow instructions
Date: 18 Sep 1999 11:48:54
Message: <37e3b466@news.povray.org>
AFAIK, no support for any of this has been added. Apparently, it is because
the FP that these processors (like the Pentium III) add is single-precision,
not double-precision like POV uses, so it doesn't benefit from it. I believe
I've heard some mention that small parts of POV might be able to be
accelerated, but nothing substantial. Another alternative was to compile
with a compiler that optimizes the compiled executable for these processors.


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From: Duncan Webb
Subject: Re: POV and AMD's 3DNow instructions
Date: 19 Sep 1999 05:05:21
Message: <37e4a751@news.povray.org>
OK, no problem. I'm tempted to download the AMD SDK (a mere 28Mbytes - time
to get a faster modem then!) and have a look at the POV sources.

Thanks for responding,

Duncan

TonyB wrote in message <37e3b466@news.povray.org>...
>AFAIK, no support for any of this has been added. Apparently, it is because
>the FP that these processors (like the Pentium III) add is
single-precision,
>not double-precision like POV uses, so it doesn't benefit from it. I
believe
>I've heard some mention that small parts of POV might be able to be
>accelerated, but nothing substantial. Another alternative was to compile
>with a compiler that optimizes the compiled executable for these
processors.
>
>


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From: John M  Dlugosz
Subject: Re: POV and AMD's 3DNow instructions
Date: 27 Sep 1999 22:19:33
Message: <37f025b5@news.povray.org>
It might be good for low-quality test renders...?

TonyB <ben### [at] panamaphoenixnet> wrote in message
news:37e3b466@news.povray.org...
> AFAIK, no support for any of this has been added. Apparently, it is
because
> the FP that these processors (like the Pentium III) add is
single-precision,
> not double-precision like POV uses, so it doesn't benefit from it. I
believe
> I've heard some mention that small parts of POV might be able to be
> accelerated, but nothing substantial. Another alternative was to compile
> with a compiler that optimizes the compiled executable for these
processors.
>
>


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From: TonyB
Subject: Re: POV and AMD's 3DNow instructions
Date: 27 Sep 1999 23:30:43
Message: <37f03663@news.povray.org>
>It might be good for low-quality test renders...?


God willing... maybe yes... I've not programmed in a long time, and even
then, only for DOS with DJGPP and Allegro.


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