POV-Ray : Newsgroups : povray.unofficial.patches : New possibilities with MegaPOV 1.0 & Multi-CPU Rendering ? Server Time
1 Jul 2024 05:45:17 EDT (-0400)
  New possibilities with MegaPOV 1.0 & Multi-CPU Rendering ? (Message 1 to 8 of 8)  
From: Theo Gottwald *
Subject: New possibilities with MegaPOV 1.0 & Multi-CPU Rendering ?
Date: 14 Jan 2003 05:42:56
Message: <3e23e9b0$1@news.povray.org>
I've just done the Mega-Pov-Installation.

Now I am just reading the MegaPOV-Turtorial trying to find out
about the new possibilities about "SMP-rendering".

>> In POV-RayT 3.5 and earlier temporary files with cache of radiosity were
named the same for every frame in the animation rendering. Since MegaPOV 1.0
the name of this file is concatenated from the name of the currently
rendered image. Together with Frame_Step (see Section 2.1.1) and this
addition it is finally possible to start two parallel processes with
radiosity rendering over one source.

So far I understand, I can render on one machine frames 1,3,5 ...
and the second machine would render at the same time frames 2,4,6 ...

Still what is not yet clear to me:

Is there anything new about rendering ONE picture in many instances without
getting "radiosity-stripes" after putting the tiles together ?

>> "... to start two parallel processes with radiosity rendering over one
source"

Or does the above sentence simply say "you can now start the same POV-Ray
two times
for rendering animations however NOT on the same picture." ?

--Theo

PS: I like those mechsim's :-).
----------------------------------------------------------------------------
---------------------------------Distributed Network-Rendering or Local
SMP-Rendering on all CPU's you have.
With SMPOV und POV-Ray 3.5. * Download free at:
http://www.it-berater.org/smpov.htm


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From: ABX
Subject: Re: New possibilities with MegaPOV 1.0 & Multi-CPU Rendering ?
Date: 14 Jan 2003 05:59:26
Message: <n4r72v841ruk78h88rji8v35afjpovp3ht@4ax.com>
On Tue, 14 Jan 2003 11:43:13 +0100, "Theo Gottwald *"
<The### [at] t-onlinede> wrote:
> Is there anything new about rendering ONE picture in many instances without
> getting "radiosity-stripes" after putting the tiles together ?

No. As you mentioned introduced changes gives possibility to split radiosity
animation to "one image per process". Still you can't split it to "sub-region
per process".

> Or does the above sentence simply say "you can now start the same POV-Ray
> two times
> for rendering animations however NOT on the same picture." ?

Rather: "at the same time you can run POV-Ray two times for rendering the same
animation however NOT on the same frame."

I hope this helps.

ABX


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From: Theo Gottwald *
Subject: Re: New possibilities with MegaPOV 1.0 & Multi-CPU Rendering ?
Date: 14 Jan 2003 06:06:30
Message: <3e23ef36@news.povray.org>
Yes, thanks for explanation.

A good idea. So you can distribute on several PC's each rendering a full
frame with radiosity
and without artifacts. Or render it on the same PC with several CPU's.
Just use each time another Frame_Step.

--Theo

----------------------------------------------------------------------------
---------------------------------Distributed Network-Rendering or Local
SMP-Rendering on all CPU's you have.
With SMPOV und POV-Ray 3.5. * Download free at:
http://www.it-berater.org/smpov.htm
"ABX" <abx### [at] abxartpl> schrieb im Newsbeitrag
news:n4r72v841ruk78h88rji8v35afjpovp3ht@4ax.com...
> On Tue, 14 Jan 2003 11:43:13 +0100, "Theo Gottwald *"
> <The### [at] t-onlinede> wrote:
> > Is there anything new about rendering ONE picture in many instances
without
> > getting "radiosity-stripes" after putting the tiles together ?
>
> No. As you mentioned introduced changes gives possibility to split
radiosity
> animation to "one image per process". Still you can't split it to
"sub-region
> per process".
>
> > Or does the above sentence simply say "you can now start the same
POV-Ray
> > two times
> > for rendering animations however NOT on the same picture." ?
>
> Rather: "at the same time you can run POV-Ray two times for rendering the
same
> animation however NOT on the same frame."
>
> I hope this helps.
>
> ABX


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From: ABX
Subject: Re: New possibilities with MegaPOV 1.0 & Multi-CPU Rendering ?
Date: 14 Jan 2003 06:17:35
Message: <crr72vsdtuk4ic78rhiae98u1i177k5esp@4ax.com>
On Tue, 14 Jan 2003 12:06:46 +0100, "Theo Gottwald *"
<The### [at] t-onlinede> wrote:
> Yes, thanks for explanation.
>
> A good idea. So you can distribute on several PC's each rendering a full
> frame with radiosity and without artifacts.

Distribute on several PC's was already possible with 3.1 as long as it used
own working directory. Since MegaPOV 1.0 several PC's and CPU's can _share_
the same working directory.

Removing artifacts from radiosity animation is different issue rather not
connected with introduced features.

> Or render it on the same PC with several CPU's.
> Just use each time another Frame_Step.

Yes.

Do you plan to add Frame_Step to your tool? Then it will be probably the first
tool adjusted to reworked MegaPOV :-)
The first scripts (except attached samples) adjusted to MegaPOV were probably
released within IsoCSG library.

ABX


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From: Theo Gottwald *
Subject: Re: New possibilities with MegaPOV 1.0 & Multi-CPU Rendering ?
Date: 14 Jan 2003 06:39:22
Message: <3e23f6ea@news.povray.org>
I am thinking about the consequences.
Trying to understand which changes would have to be made.

If you have an idea which buttons to include and where, give me a hint.

So I could render all those nice mechsim-animations here with my CPU's. :-)

We had >450 Downloads from SMPOV til today.
From all those people I got just 3 Mails as response, one cause he had
trouble with the download.

Maybe someone has errors to report we can fix with the new release as well ?

~~~
One other thing I think could be improved with the MegaPOV itself:
After installing the MegaPOV 1.0 (by copying the folders over the POV 3.5
folders)
I was really waiting to render one of those mechsims.

"Cannot find iso_csg.inc"

It still missed the iso_csg-includes so it could not render its own (great
!)
mechsim-examples like "bar.pov".

Had to search for it myself first.

I would suggest:
a) a normal Setup which takes the POV-path from registry (Could give you one
if you dont mind it has 300 kb :-) +Mega POV).
b) all files included to render the examples. ( Then I found the iso_csg.inc
and several versions. Seemed to be ascience by itself to choose the right
once for non-mathematicians :-) ...).

automatically installed.

Thanks however
--Theo

----------------------------------------------------------------------------
---------------------------------Distributed Network-Rendering or Local
SMP-Rendering on all CPU's you have.
With SMPOV und POV-Ray 3.5. * Download free at:
http://www.it-berater.org/smpov.htm


Post a reply to this message

From: ABX
Subject: Re: New possibilities with MegaPOV 1.0 & Multi-CPU Rendering ?
Date: 14 Jan 2003 07:03:44
Message: <iju72vgg3p9ovlhaehma23b7t3mr4av9eu@4ax.com>
On Tue, 14 Jan 2003 12:39:38 +0100, "Theo Gottwald *"
<The### [at] t-onlinede> wrote:
> I am thinking about the consequences.
> Trying to understand which changes would have to be made.
> If you have an idea which buttons to include and where, give me a hint.

to TO DO

> One other thing I think could be improved with the MegaPOV itself:
> After installing the MegaPOV 1.0 (by copying the folders over the POV 3.5
> folders)
> I was really waiting to render one of those mechsims.
>
> "Cannot find iso_csg.inc"

iso_csg is not distributed with MegaPOV becouse it is independant project.
Having it separated makes it easier to make better and extended versions of
IsoCSG library later. There is MegaPOV dedicated version of IsoCSG at its
page: http://www.google.com/search?q=isocsg+megapov . Perhaps some links to
IsoCSG could be included on downloading pages.

ABX


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From: Christoph Hormann
Subject: Re: New possibilities with MegaPOV 1.0 & Multi-CPU Rendering ?
Date: 14 Jan 2003 10:52:59
Message: <3E243257.F7A86D@gmx.de>
ABX wrote:
> 
> iso_csg is not distributed with MegaPOV becouse it is independant project.
> Having it separated makes it easier to make better and extended versions of
> IsoCSG library later. There is MegaPOV dedicated version of IsoCSG at its
> page: http://www.google.com/search?q=isocsg+megapov . Perhaps some links to
> IsoCSG could be included on downloading pages.

The link is in the comment of all scene files requiring it.  It was also
in 'suggested reading' in the documentation which we have scratched for
this version because it was not ready yet.

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 31 Dec. 2002 _____./\/^>_*_<^\/\.______


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From: Theo Gottwald *
Subject: Re: New possibilities with MegaPOV 1.0 & Multi-CPU Rendering ?
Date: 16 Jan 2003 08:02:24
Message: <3e26ad60$1@news.povray.org>
> The link is in the comment of all scene files requiring it.  It was also
> in 'suggested reading' in the documentation which we have scratched for
> this version because it was not ready yet.

Its not been a big problem for me to find it finally.
My comment was from the view of a "new-user" who
(as most new-users do not read any manuals :-).

After all I have even taken some time and read here:
http://www-public.tu-bs.de:8080/~y0013390/pov/ic/index.html
to get an slight idea about what "iso_csg" is (for non-mathematicians like
me :-).

--Theo

----------------------------------------------------------------------------
---------------------------------
Distributed Network-Rendering or Local SMP-Rendering on all CPU's you have.
With SMPOV und POV-Ray 3.5. * Download free at:
http://www.it-berater.org/smpov.htm


"Christoph Hormann" <chr### [at] gmxde> schrieb im Newsbeitrag
news:3E2### [at] gmxde...
>
>
> ABX wrote:
> >
> > iso_csg is not distributed with MegaPOV becouse it is independant
project.
> > Having it separated makes it easier to make better and extended versions
of
> > IsoCSG library later. There is MegaPOV dedicated version of IsoCSG at
its
> > page: http://www.google.com/search?q=isocsg+megapov . Perhaps some links
to
> > IsoCSG could be included on downloading pages.
>
> The link is in the comment of all scene files requiring it.  It was also
> in 'suggested reading' in the documentation which we have scratched for
> this version because it was not ready yet.
>
> Christoph
>
> --
> POV-Ray tutorials, include files, Sim-POV,
> HCR-Edit and more: http://www.tu-bs.de/~y0013390/
> Last updated 31 Dec. 2002 _____./\/^>_*_<^\/\.______


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