POV-Ray : Newsgroups : povray.binaries.images : Brute force octree space partitioning Server Time
8 Nov 2024 16:33:14 EST (-0500)
  Brute force octree space partitioning (Message 1 to 7 of 7)  
From: Robert McGregor
Subject: Brute force octree space partitioning
Date: 29 Jan 2012 20:05:01
Message: <web.4f25ebe37ec913dc94d713cc0@news.povray.org>
I knew I was going to be out of town for several days this week and wanted to
make sure my PC's processor time wasn't squandered while I was away. So, I set
up an experimental scene to do a series of progressively more detailed brute
force octree space partitioning renders, using sparse voxels to fill a Julia
fractal with spheres (just because). Here's a "contact sheet" of the resulting
frames.

I also made a full-res video of the various iteration levels and posted it on
Vimeo here: http://vimeo.com/35855241

Cheers,
Rob
-------------------------------------------------
www.McGregorFineArt.com


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From: nemesis
Subject: Re: Brute force octree space partitioning
Date: 30 Jan 2012 14:08:18
Message: <4f26eaa2$1@news.povray.org>
Robert McGregor escreveu:
> I knew I was going to be out of town for several days this week and wanted to
> make sure my PC's processor time wasn't squandered while I was away. So, I set
> up an experimental scene to do a series of progressively more detailed brute
> force octree space partitioning renders, using sparse voxels to fill a Julia
> fractal with spheres (just because). Here's a "contact sheet" of the resulting
> frames.

any word on render time?

-- 
a game sig: http://tinyurl.com/d3rxz9


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From: Robert McGregor
Subject: Re: Brute force octree space partitioning
Date: 30 Jan 2012 19:10:00
Message: <web.4f2731399d8d970f94d713cc0@news.povray.org>
nemesis <nam### [at] gmailcom> wrote:
> Robert McGregor escreveu:
> > I knew I was going to be out of town for several days this week and wanted to
> > make sure my PC's processor time wasn't squandered while I was away. So, I set
> > up an experimental scene to do a series of progressively more detailed brute
> > force octree space partitioning renders, using sparse voxels to fill a Julia
> > fractal with spheres (just because). Here's a "contact sheet" of the resulting
> > frames.
>
> any word on render time?
>
> --
> a game sig: http://tinyurl.com/d3rxz9

Well, actual /render/ time wasn't that bad, it was about 4 hours total for all
frames, and then only because I had radiosity settings cranked WAY up.

But the /parse/ time was murder (brute force and all, which is I why I waited
until I was out of town for several days ;). It was about 10 hours parsing for
the first 9 frames, and 70 hours parsing the final one (ouch!).

But, since I wrote the position & radius of each sphere to include files, the
parsing only had to be done once :)

-------------------------------------------------
www.McGregorFineArt.com


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From: Paolo Gibellini
Subject: Re: Brute force octree space partitioning
Date: 31 Jan 2012 04:10:44
Message: <4f27b014$1@news.povray.org>
>Robert McGregor  on date 30/01/2012 02:04 wrote:
> I knew I was going to be out of town for several days this week and wanted to
> make sure my PC's processor time wasn't squandered while I was away. So, I set
> up an experimental scene to do a series of progressively more detailed brute
> force octree space partitioning renders, using sparse voxels to fill a Julia
> fractal with spheres (just because). Here's a "contact sheet" of the resulting
> frames.
>
> I also made a full-res video of the various iteration levels and posted it on
> Vimeo here: http://vimeo.com/35855241
>
> Cheers,
> Rob
> -------------------------------------------------
> www.McGregorFineArt.com
>
>
It's very elegant.
Paolo


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From: [GDS|Entropy]
Subject: Re: Brute force octree space partitioning
Date: 1 Feb 2012 16:45:01
Message: <web.4f29b16d9d8d970f77e50e540@news.povray.org>
Oh man, that is really neat!

Any chance you would be willing to post the source for that?

THanks,
Ian

"Robert McGregor" <rob### [at] mcgregorfineartcom> wrote:
> I knew I was going to be out of town for several days this week and wanted to
> make sure my PC's processor time wasn't squandered while I was away. So, I set
> up an experimental scene to do a series of progressively more detailed brute
> force octree space partitioning renders, using sparse voxels to fill a Julia
> fractal with spheres (just because). Here's a "contact sheet" of the resulting
> frames.
>
> I also made a full-res video of the various iteration levels and posted it on
> Vimeo here: http://vimeo.com/35855241
>
> Cheers,
> Rob
> -------------------------------------------------
> www.McGregorFineArt.com


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From: Robert McGregor
Subject: Re: Brute force octree space partitioning
Date: 1 Feb 2012 23:00:00
Message: <web.4f2a08ce9d8d970f94d713cc0@news.povray.org>
"[GDS|Entropy]" <nomail@nomail> wrote:
> Oh man, that is really neat!
>
> Any chance you would be willing to post the source for that?

Grrrr, my hard disk crashed last night, but here's what I have from my last
backup, from my first experiments a couple of weeks ago...

http://news.povray.org/povray.text.scene-files/message/%3Cweb.4f2a0580cf27ae8a94d713cc0%40news.povray.org%3E/#%3Cweb.4f
2a0580cf27ae8a94d713cc0%40news.povray.org%3E

Note to self: "Start backing up your data every night!!!!!"

/grrr
-------------------------------------------------
www.McGregorFineArt.com


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From: Jaime Vives Piqueres
Subject: Re: Brute force octree space partitioning
Date: 2 Feb 2012 04:23:13
Message: <4f2a5601$1@news.povray.org>
On 02/02/12 04:54, Robert McGregor wrote:
> "[GDS|Entropy]"<nomail@nomail>  wrote:
>> Oh man, that is really neat!
>>
>> Any chance you would be willing to post the source for that?
>
> Grrrr, my hard disk crashed last night,

   Did you try putting it as slave into another computer? ...in my
experience, most of the times it is a boot sector problem, and the data
can be retrieved easily this way.

--
Jaime


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