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Hello,
This is my latest desktop wallpaper attempt. Is are 110592 cubes, placed my
an algoritm. This image has an "recursion-level"of 3, and i am currently
rendering one with level 4, which has 48 times as much cubes.
a large .jpg version [1600x1200] of both images will be available at
home.student.utwente.nl/j.w.a.vaandrager/background_L3g.jpg
change the L3g to L4g to view the "level-4" image when it's done.
Comments and critisism is welcome as usual.
Greetings,
JWV
Post a reply to this message
Attachments:
Download 'background_L3.jpg' (73 KB)
Preview of image 'background_L3.jpg'
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The level-4 render was to much for my laptop :-(. It used 2GB of memory
while parsing, and it wasn't finished jet.
I will post the source in p.b.sf if someone wants to give it a try on a
machine with a LOT of memory :-).
Greetings JWV
"JWV" <jwv|at|planet.nl> wrote in message news:408027c5@news.povray.org...
> Hello,
>
> This is my latest desktop wallpaper attempt. Is are 110592 cubes, placed
my
> an algoritm. This image has an "recursion-level"of 3, and i am currently
> rendering one with level 4, which has 48 times as much cubes.
>
> a large .jpg version [1600x1200] of both images will be available at
>
> home.student.utwente.nl/j.w.a.vaandrager/background_L3g.jpg
>
> change the L3g to L4g to view the "level-4" image when it's done.
>
> Comments and critisism is welcome as usual.
>
> Greetings,
>
> JWV
>
>
>
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"JWV" <jwv|at|planet.nl> wrote:
> The level-4 render was to much for my laptop :-(. It used 2GB of memory
> while parsing, and it wasn't finished jet.
>
> I will post the source in p.b.sf if someone wants to give it a try on a
> machine with a LOT of memory :-).
>
> Greetings JWV
That looks cool! I might give it a try if you post the source.
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the source has been posted. You can change the recusion level by changing :
#while(cnt<4)
in line 19, into cnt<????
I is set to 4, which means recursion level 4, which was to much for my
laptop. So you might give it a try with level 3 first.
Greets,
JWV
"SunTzu2" <sun### [at] hotmail com> wrote in message
news:web.408037669e31cbafeba257cf0@news.povray.org...
> "JWV" <jwv|at|planet.nl> wrote:
> > The level-4 render was to much for my laptop :-(. It used 2GB of memory
> > while parsing, and it wasn't finished jet.
> >
> > I will post the source in p.b.sf if someone wants to give it a try on a
> > machine with a LOT of memory :-).
> >
> > Greetings JWV
>
>
> That looks cool! I might give it a try if you post the source.
>
Post a reply to this message
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JWV wrote:
>>
>>>The level-4 render was to much for my laptop :-(. It used 2GB of memory
>>>while parsing, and it wasn't finished jet.
>>>
>>>I will post the source in p.b.sf if someone wants to give it a try on a
>>>machine with a LOT of memory :-).
>>>
>>>Greetings JWV
>>
>>
>>That looks cool! I might give it a try if you post the source.
>>
>
>
>
i'm peeved / tee'd off
dual 2.8 xeon, 2gb ram, explicitly added 2gb of swap space above its
norm of 1gb and still ran out of space with recursion level of 4
anyone got a machine that can render it ?
stephen
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Thanks for trying it! The level 4 scene should have about 48^4=5.308.416
cubes. I am not sure how much memory is used for this amount, but it apears
to be quite a lot.
Greetings,
JWV
"stephen parkinson" <ste### [at] zmemw16demoncouk> wrote in message
news:4081644e$1@news.povray.org...
> JWV wrote:
> >>
> >>>The level-4 render was to much for my laptop :-(. It used 2GB of memory
> >>>while parsing, and it wasn't finished jet.
> >>>
> >>>I will post the source in p.b.sf if someone wants to give it a try on a
> >>>machine with a LOT of memory :-).
> >>>
> >>>Greetings JWV
> >>
> >>
> >>That looks cool! I might give it a try if you post the source.
> >>
> >
> >
> >
>
> i'm peeved / tee'd off
>
> dual 2.8 xeon, 2gb ram, explicitly added 2gb of swap space above its
> norm of 1gb and still ran out of space with recursion level of 4
>
> anyone got a machine that can render it ?
>
> stephen
Post a reply to this message
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"stephen parkinson" <ste### [at] zmemw16demoncouk> wrote in message
news:4081644e$1@news.povray.org...
> JWV wrote:
> >>
> >>>The level-4 render was to much for my laptop :-(. It used 2GB of memory
> >>>while parsing, and it wasn't finished jet.
> >>>
> >>>I will post the source in p.b.sf if someone wants to give it a try on a
> >>>machine with a LOT of memory :-).
> >>>
> >>>Greetings JWV
> >>
> >>
> >>That looks cool! I might give it a try if you post the source.
> >>
> >
> >
> >
>
> i'm peeved / tee'd off
>
> dual 2.8 xeon, 2gb ram, explicitly added 2gb of swap space above its
> norm of 1gb and still ran out of space with recursion level of 4
>
> anyone got a machine that can render it ?
I've got 1 gig RAM and 6 gig of page file. I was watching the memory usage
and it claimed out of memory at 2gig. I seem to recall hearing something
about a 2gig maximum of memory for an application regardless of the total
amount available (Windows). Does anyone else know something about that?
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JWV wrote:
> the source has been posted. You can change the recusion level by changing :
> #while(cnt<4)
> in line 19, into cnt<????
>
> I is set to 4, which means recursion level 4, which was to much for my
> laptop. So you might give it a try with level 3 first.
>
> Greets,
>
> JWV
>
>
>
> "SunTzu2" <sun### [at] hotmailcom> wrote in message
> news:web.408037669e31cbafeba257cf0@news.povray.org...
>
>>"JWV" <jwv|at|planet.nl> wrote:
>>
>>>The level-4 render was to much for my laptop :-(. It used 2GB of memory
>>>while parsing, and it wasn't finished jet.
>>>
>>>I will post the source in p.b.sf if someone wants to give it a try on a
>>>machine with a LOT of memory :-).
>>>
>>>Greetings JWV
>>
>>
>>That looks cool! I might give it a try if you post the source.
>>
>
>
>
having read replies so far, is there a question of OS lurking ?
if so, linux originally libranet 2.8.1, now tracking sid istr, kernel 2.6.4
stephen
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On Sat, 17 Apr 2004 10:57:27 -0700, Sun Tzu <sun### [at] nospamhotmailcom>
wrote:
> I've got 1 gig RAM and 6 gig of page file. I was watching the memory
> usage
> and it claimed out of memory at 2gig. I seem to recall hearing something
> about a 2gig maximum of memory for an application regardless of the total
> amount available (Windows). Does anyone else know something about that?
Win32 applications are limited to using approximately 2GB of memory. "Out
of memory" in this case really means "out of address space". The total
address space is 4GB, but applications are only allowed to use half of it.
Applications that work with data sets larger than that must take special
measures in order to do so.
---
FE
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
JWV wrote:
| The level-4 render was to much for my laptop :-(. It used 2GB of memory
| while parsing, and it wasn't finished jet.
|
| I will post the source in p.b.sf if someone wants to give it a try on a
| machine with a LOT of memory :-).
|
It should be possible to decrease the amount of memory required
(divide it by 4). At the first iteration, since blok is a simple cube,
balk is equivalent to a box { <0, 0, 0>, <5, 1, 1> } although it is
done with 4 boxes. Even with that I don't have enough RAM to give it a
try from what you're all saying ("only" 512M) but some of you might
want to try it.
Of course, this is only true so long as f is set to 1, with higher
values the results won't look the same...
Jerome
- --
******************************
* Jerome M. Berger *
* mailto:jbe### [at] ifrancecom *
* http://jeberger.free.fr/ *
******************************
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> It should be possible to decrease the amount of memory required
> (divide it by 4). At the first iteration, since blok is a simple cube,
> balk is equivalent to a box { <0, 0, 0>, <5, 1, 1> } although it is
> done with 4 boxes.
I tried to make the code work like that, but it was more complex.
> Of course, this is only true so long as f is set to 1, with higher
> values the results won't look the same...
That is the problem indeed.
I might try to make it work anyway. It should be possible by making the
first "blok" a union of 8 box{0, <5,1,1>}. Then setting the level to 3
will - should :-) - have the same effect as the level 4 in the old file.
But I will do that tommorow since i need some sleep now.
Greetings,
JWV
BTW, thanks to all of you for all the replies!
"Jérôme M. Berger" <jbe### [at] ifrancecom> wrote in message
news:40818b8d$1@news.povray.org...
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> JWV wrote:
> | The level-4 render was to much for my laptop :-(. It used 2GB of memory
> | while parsing, and it wasn't finished jet.
> |
> | I will post the source in p.b.sf if someone wants to give it a try on a
> | machine with a LOT of memory :-).
> |
> It should be possible to decrease the amount of memory required
> (divide it by 4). At the first iteration, since blok is a simple cube,
> balk is equivalent to a box { <0, 0, 0>, <5, 1, 1> } although it is
> done with 4 boxes. Even with that I don't have enough RAM to give it a
> try from what you're all saying ("only" 512M) but some of you might
> want to try it.
>
> Of course, this is only true so long as f is set to 1, with higher
> values the results won't look the same...
>
> Jerome
> - --
> ******************************
> * Jerome M. Berger *
> * mailto:jbe### [at] ifrancecom *
> * http://jeberger.free.fr/ *
> ******************************
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Here it is at recursion 4...
Jerome
- --
******************************
* Jerome M. Berger *
* mailto:jbe### [at] ifrancecom *
* http://jeberger.free.fr/ *
******************************
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kVlZLwukg0ibNBmTNU1xEMQ=
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Post a reply to this message
Attachments:
Download 'blok.jpg' (45 KB)
Preview of image 'blok.jpg'
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very cool!, but you turned of the reflection of the ground plane didn't you?
How long did it take to parse/render?
Greetings,
JWV
"Jérôme M. Berger" <jbe### [at] ifrancecom> wrote in message
news:40826d9b@news.povray.org...
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Here it is at recursion 4...
>
> Jerome
>
> - --
> ******************************
> * Jerome M. Berger *
> * mailto:jbe### [at] ifrancecom *
> * http://jeberger.free.fr/ *
> ******************************
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>
----------------------------------------------------------------------------
----
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JWV wrote:
| How long did it take to parse/render?
|
Parse time: 19s
Render time: 3236s (~55mn)
The computer used is an Athlon XP 2700+ with 2x256M of RAM in dual
channel mode and 1GB of swap running linux mandrake 9.1 (kernel
upgraded to 2.4.22)
Jerome
- --
******************************
* Jerome M. Berger *
* mailto:jbe### [at] ifrancecom *
* http://jeberger.free.fr/ *
******************************
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Higher resolution version (1152x864) is at
http://jeberger.free.fr/tmp/blok.jpg
Render time was 28min????
Jerome
- --
******************************
* Jerome M. Berger *
* mailto:jbe### [at] ifrancecom *
* http://jeberger.free.fr/ *
******************************
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On Sat, 17 Apr 2004 19:27:53 +0200, JWV <jwv|at|planet.nl> wrote:
> Thanks for trying it! The level 4 scene should have about 48^4=5.308.416
> cubes. I am not sure how much memory is used for this amount, but it
> apears
> to be quite a lot.
There are ways to overcome such limitations and render fractals with
greater recursion depth. The most effective (in my experience) is to
generate a mesh (either externally or in POV-SDL) of the fractal at a
convenient depth, and then use that mesh as the low level building block
in the bigger fractal. The reduction in memory usage can be quite
dramatic. The important thing is to keep the total number of objects
within reasonable bounds. 48^4 cubes is a little much for POV-Ray to
handle; 48^2 or 48^3 mesh instances might work better. Unfortunately,
POV-Ray doesn't handle huge meshes very well, but you might be able to
reach level 5 (or more) that way.
---
FE
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On Mon, 19 Apr 2004 21:26:42 +0200, Fredrik Eriksson <noo### [at] nowherecom>
wrote:
> There are ways to overcome such limitations and render fractals with
> greater recursion depth. The most effective (in my experience) is to
> generate a mesh (either externally or in POV-SDL) of the fractal at a
> convenient depth, and then use that mesh as the low level building block
> in the bigger fractal. The reduction in memory usage can be quite
> dramatic. The important thing is to keep the total number of objects
> within reasonable bounds. 48^4 cubes is a little much for POV-Ray to
> handle; 48^2 or 48^3 mesh instances might work better. Unfortunately,
> POV-Ray doesn't handle huge meshes very well, but you might be able to
> reach level 5 (or more) that way.
Just to show that it's possible:
http://hem.bredband.net/b230591/povray/cubefractal5_2048.jpg (828 kB)
http://hem.bredband.net/b230591/povray/cubefractal6_4096.jpg (2.69 MB)
---
FE
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> Higher resolution version (1152x864) is at
> http://jeberger.free.fr/tmp/blok.jpg
>
> Render time was 28min????
Is that POV or Pixie?
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Fredrik Eriksson wrote:
> On Mon, 19 Apr 2004 21:26:42 +0200, Fredrik Eriksson <noo### [at] nowherecom>
> wrote:
<snip />
> Just to show that it's possible:
>
> http://hem.bredband.net/b230591/povray/cubefractal5_2048.jpg (828 kB)
> http://hem.bredband.net/b230591/povray/cubefractal6_4096.jpg (2.69 MB)
God bless recursion, every one in a one in a one in a one...
--
Respectfully,
Dan P
http://<broken link>
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
| Is that POV or Pixie?
|
Both my renders were done with pixie...
Jerome
- --
******************************
* Jerome M. Berger *
* mailto:jbe### [at] ifrancecom *
* http://jeberger.free.fr/ *
******************************
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Sorry to be coming late to this, but I'm willing to try it...I have a G5
with 4 gig of RAM and would be interested to see how it goes.
Zesty
"JWV" <jwv|at|planet.nl> wrote:
> The level-4 render was to much for my laptop :-(. It used 2GB of memory
> while parsing, and it wasn't finished jet.
>
> I will post the source in p.b.sf if someone wants to give it a try on a
> machine with a LOT of memory :-).
>
> Greetings JWV
>
>
>
> "JWV" <jwv|at|planet.nl> wrote in message news:408027c5@news.povray.org...
> > Hello,
> >
> > This is my latest desktop wallpaper attempt. Is are 110592 cubes, placed
> my
> > an algoritm. This image has an "recursion-level"of 3, and i am currently
> > rendering one with level 4, which has 48 times as much cubes.
> >
> > a large .jpg version [1600x1200] of both images will be available at
> >
> > home.student.utwente.nl/j.w.a.vaandrager/background_L3g.jpg
> >
> > change the L3g to L4g to view the "level-4" image when it's done.
> >
> > Comments and critisism is welcome as usual.
> >
> > Greetings,
> >
> > JWV
> >
> >
> >
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