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Hi !
Does anybody know anything about PovRay support for AMD
K6-2 fancy addons called 3DNow! or something..
I upgraded recently from P120 to K6-2 266 and would like to get most
of it (although the speed difference is already some 3-4 times).
Tried to look for a patch or something, but K6-2 is nowhere mentioned.
(Haven't downloaded 3.1 yet, so please don't hit me if 3DNow! support
is included there, at least I didn't found it in description)
UL
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Tere, Urmas!
Sorry, kirjutan inglise keeles, muidu teised ei saa aru...
As far as I know, 3DNow technology does not (and cannot) have any effect on
raytracers like POV (just like 3D accelerator cards). It only affects 3D games,
(possibly) VRML and other such stuff. These things are very different from
raytracing.
Btw. I would be happy with 266Mhz even without 3DNow - my 120Mhz486 kinda sucks
;)
Margus
Urmas Lipso wrote:
>
> Hi !
> Does anybody know anything about PovRay support for AMD
> K6-2 fancy addons called 3DNow! or something..
> I upgraded recently from P120 to K6-2 266 and would like to get most
> of it (although the speed difference is already some 3-4 times).
> Tried to look for a patch or something, but K6-2 is nowhere mentioned.
> (Haven't downloaded 3.1 yet, so please don't hit me if 3DNow! support
> is included there, at least I didn't found it in description)
> UL
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On Sun, 01 Nov 1998 03:31:21 +0200, Margus Ramst <mar### [at] peak eduee>
wrote:
>As far as I know, 3DNow technology does not (and cannot) have any effect on
>raytracers like POV (just like 3D accelerator cards). It only affects 3D games,
>(possibly) VRML and other such stuff. These things are very different from
>raytracing.
Actually, 3DNow could help POV-Ray in a few places. 3DNow is just
floating point operations on more than one operand at a time, it's not
hardware acceleration of triangle drawing as found on a video card.
However, to get any real use out of it you'd have to really tweak the
POV code, at the expense of portability. On top of that, no
mainstream compilers currently support the 3DNow instruction set.
Optimizing for the K6-2's specific architecture would probably gain
you more performance than supporting 3DNow. But again, finding a
compiler that knows how to optimize for a K6-2 would be a real chore.
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Sorry 'bout the misinformation... Sth. I read at the net gave me the wrong
impression.
But if, like your post seems to suggest, 3DNow technology involves float
operations, shouldn't it help in more than just a few places? Is it sth. like an
advanced FPU?
Just curious...
Margus
Ronald L. Parker wrote:
> Actually, 3DNow could help POV-Ray in a few places. 3DNow is just
> floating point operations on more than one operand at a time, it's not
> hardware acceleration of triangle drawing as found on a video card.
> However, to get any real use out of it you'd have to really tweak the
> POV code, at the expense of portability. On top of that, no
> mainstream compilers currently support the 3DNow instruction set.
>
> Optimizing for the K6-2's specific architecture would probably gain
> you more performance than supporting 3DNow. But again, finding a
> compiler that knows how to optimize for a K6-2 would be a real chore.
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Ronald L. Parker wrote:
>
> Actually, 3DNow could help POV-Ray in a few places. 3DNow is just
> floating point operations on more than one operand at a time, it's not
> hardware acceleration of triangle drawing as found on a video card.
That's not quite right. It's a SIMD architecture (Single Instruction,
Multiple, Data) that is similar to the MMX by Intel. It's right
that you can handle several floats at once, but with a limited
precision.
Markus
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On Mon, 02 Nov 1998 11:46:46 +0100, Markus Becker
<bec### [at] zessuni-siegende> wrote:
>Ronald L. Parker wrote:
>>
>> Actually, 3DNow could help POV-Ray in a few places. 3DNow is just
>> floating point operations on more than one operand at a time, it's not
>> hardware acceleration of triangle drawing as found on a video card.
>
>That's not quite right. It's a SIMD architecture (Single Instruction,
>Multiple, Data) that is similar to the MMX by Intel. It's right
>that you can handle several floats at once, but with a limited
>precision.
So what about what I said is inaccurate? ISTR that at least the
2-operand form allows you to work with two 32-bit floats, which
are equivalent in precision to the floats that are used with, for
example, colours. And overriding the colour functions, such as
adding, scaling, and inverse-scaling colours, might not be such
a difficult task. However, again, I don't think one would gain
much for one's labour.
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Margus Ramst wrote:
> Tere, Urmas!
> Sorry, kirjutan inglise keeles, muidu teised ei saa aru...
Could you enlighten me and tell me in what language is the above text.
Please accept my apologies for my ignorance.
Regards,
Al.
--
ANTI SPAM / ANTI ARROSAGE COMMERCIAL :
Pour me répondre, veuillez enlever le Z de mon adresse.
To answer me, please take out the Z from my address.
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From: Nieminen Mika
Subject: Re: (Off-topic) - was [Re: AMD K6-2 and PovRay]
Date: 3 Nov 1998 04:15:46
Message: <363ec9c2.0@news.povray.org>
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Alain CULOS <ZAl### [at] bigfootcom> wrote:
: Margus Ramst wrote:
:> Tere, Urmas!
:> Sorry, kirjutan inglise keeles, muidu teised ei saa aru...
: Could you enlighten me and tell me in what language is the above text.
: Please accept my apologies for my ignorance.
It looks Estonian or something like that. Looks a bit like finnish, but
I still can't understand it completely. I think it says something like
"I write in english language, ..." (in finnish it's "kirjoitan englannin
kielellä, ...")
--
- Warp. -
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The text is in Estonian (I forgive you for not recognizing the language,
but I sure hope you have heard about Estonia ;))
I wrote this because Urmas Lipso is the only fellow Estonian I have seen
on this news server.
I hope there will be more, though...
Ärge kunagi avage purki vihmaussidega, kui teil ei ole kavas kalale
minna.
(hehe, guess what I just said... I should put this in my signature)
Margus
Alain CULOS wrote:
>
> Margus Ramst wrote:
>
> > Tere, Urmas!
> > Sorry, kirjutan inglise keeles, muidu teised ei saa aru...
>
> Could you enlighten me and tell me in what language is the above text.
> Please accept my apologies for my ignorance.
>
> Regards,
> Al.
>
> --
> ANTI SPAM / ANTI ARROSAGE COMMERCIAL :
> Pour me répondre, veuillez enlever le Z de mon adresse.
> To answer me, please take out the Z from my address.
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Nieminen Mika wrote:
>It looks Estonian or something like that.
Bingo!
"I write in English, or else the others don't understand" or:
"Kirjoitan englanniksi, muuten toiset eivät tajua"
My Finnish isn't that great, but I believe this is pretty close...
Margus
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Ron Parker wrote:
>
> On Mon, 02 Nov 1998 11:46:46 +0100, Markus Becker
> <bec### [at] zessuni-siegende> wrote:
> >That's not quite right. It's a SIMD architecture (Single Instruction,
> >Multiple, Data) that is similar to the MMX by Intel. It's right
> >that you can handle several floats at once, but with a limited
> >precision.
>
> So what about what I said is inaccurate? ISTR that at least the
Not what you said is inaccurate. It's just that I thought the
results of the SIMD calculations would be more inaccurate.
> 2-operand form allows you to work with two 32-bit floats, which
> are equivalent in precision to the floats that are used with, for
> example, colours. And overriding the colour functions, such as
> adding, scaling, and inverse-scaling colours, might not be such
> a difficult task. However, again, I don't think one would gain
> much for one's labour.
Right.
Markus
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From: Urmas Lipso
Subject: Re: (Off-topic) - was [Re: AMD K6-2 and PovRay]
Date: 4 Nov 1998 11:23:15
Message: <36407F59.7234@online.ee>
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Margus Ramst wrote:
>
>
> Ärge kunagi avage purki vihmaussidega, kui teil ei ole kavas kalale
> minna.
> (hehe, guess what I just said... I should put this in my signature)
>
Yeah right... next thing some fellow around South-Kongo Republic or
North-Tscukotka will write something in his language too. Actually,
it suck when you have to guess what someone has said in a message,
OK estonian is too different, but most of European languages have
some legacy from latin, so you sometimes get a clue. Luckily, I read
mostly binary porn NG, so the text doesn't matter :)
I'll probably have some stupid questions about halos soon, so see ya
folks later
UL
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If it's something I want everybody to understand, I'll write it in English. If
not, rest assured that it's not important and you won't miss a thing anyway
(btw. I din't really mean to put this crap in my signature, if that disturbs
you)
I'm sure you insulted all the POV-ers from North-Tscukota now...
Margus
Urmas Lipso wrote:
>
> Margus Ramst wrote:
> >
> >
> > Ärge kunagi avage purki vihmaussidega, kui teil ei ole kavas kalale
> > minna.
> > (hehe, guess what I just said... I should put this in my signature)
> >
> Yeah right... next thing some fellow around South-Kongo Republic or
> North-Tscukotka will write something in his language too. Actually,
> it suck when you have to guess what someone has said in a message,
> OK estonian is too different, but most of European languages have
> some legacy from latin, so you sometimes get a clue. Luckily, I read
> mostly binary porn NG, so the text doesn't matter :)
> I'll probably have some stupid questions about halos soon, so see ya
> folks later
> UL
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Margus Ramst wrote:
> I'm sure you insulted all the POV-ers from North-Tscukota now...
>
> Margus
Both of them ;)
Ken Tyler
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>I'm sure you insulted all the POV-ers from North-Tscukota now...
>
>Margus
>
Istha eansma arwa!!!!
Andgra Ubapa
North-Tscukota
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From: Urmas Lipso
Subject: Re: (Off-topic) - was [Re: AMD K6-2 and PovRay]
Date: 7 Nov 1998 11:22:37
Message: <3644739C.574F@online.ee>
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Margus Ramst wrote:
>
>
> I'm sure you insulted all the POV-ers from North-Tscukota now...
>
Cool! The percentage of mankind wanting to kill me is ever-growing! :)
BTW, managed to upgrade K6-2 266 to 333, ( hint Margus, its *** cheap
now in Estonia, mail me in case of serious interest ...)
so benchmarked it, skyvase.pov etc. The time was 2.10 - no optimization
top score on single '86 CPU . And what's best, it was running on 32 MB
of slow EDO RAM, 68 MHz, instead of max 112 MHz memory bus speed.
If running on low speed it beats the *** out of older ALPHAS :)
can't dream of it's full power. Sadly enough, scorched my MB an hour
later, luckily not my fault. Will try guarantee.
So good luck to ya all, try upgrading :)
UL
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