POV-Ray : Newsgroups : povray.binaries.images : Explanation [153KiB] Server Time
14 Oct 2026 02:58:08 EDT (-0400)
  Explanation [153KiB] (Message 1 to 15 of 15)  
From: Eero Ahonen
Subject: Explanation [153KiB]
Date: 24 Oct 2005 17:01:26
Message: <435d4ba6@news.povray.org>
Who can guess, what is this? Image has been scaled down with Gimp
(original 1024x768), but I'm NOT going to render it again for 800x600 or
smaller (maybe 1600x1200 for background usage), while rendering this one
took over 173 hours...

-- 
Eero "Aero" Ahonen
   http://www.zbxt.net
      aer### [at] removethiszbxtnetinvalid


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image.jpg


 

From: Jim Henderson
Subject: Re: Explanation [153KiB]
Date: 24 Oct 2005 17:26:05
Message: <pan.2005.10.24.21.26.04.866834@nospam.com>
Looks kinda like a wormhole as shown in the Stargate TV series...

Jim


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From: Kenneth Hutson
Subject: Re: Explanation [153KiB]
Date: 24 Oct 2005 18:51:38
Message: <435d657a$1@news.povray.org>
"Eero Ahonen" <aer### [at] removethiszbxtnetinvalid> wrote in message 
news:435d4ba6@news.povray.org...
> Who can guess, what is this? Image has been scaled down with Gimp
> (original 1024x768), but I'm NOT going to render it again for 800x600 or
> smaller (maybe 1600x1200 for background usage), while rendering this one
> took over 173 hours...
>
> -- 
> Eero "Aero" Ahonen
>   http://www.zbxt.net
>      aer### [at] removethiszbxtnetinvalid
>

Could be a chromatograph of force interactions between a high velocity BB 
and the gun barrel....
-or-
Could be a REAL fancy marble!

Is this gonna be another really long thread??
Kenneth Hutson


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From: Joanne Simpson
Subject: Re: Explanation [153KiB]
Date: 24 Oct 2005 21:10:01
Message: <web.435d8554de6d2996dc45bc820@news.povray.org>
> Is this gonna be another really long thread??

It's the view from Thistledown! Or possibly a straw descending into lime
cordial...


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From: Daniel Hulme
Subject: Re: Explanation [153KiB]
Date: 25 Oct 2005 04:19:31
Message: <20051025091933.423acc51@dh286.pem.cam.ac.uk>
> Who can guess, what is this? Image has been scaled down with Gimp
> (original 1024x768), but I'm NOT going to render it again for 800x600
> or smaller (maybe 1600x1200 for background usage), while rendering
> this one took over 173 hours...
I don't care what it is, it's pretty. Could it be animated?

-- 
There was a young man from Japan,    . o O ( http://surreal.istic.org/ )
Who wrote verse that just wouldn't scan;   ( It's like a DEATH CIRCUS! )
When they said, "But the thing Has to go with a swing,"     GPG 885b170d
He said, "Yes, but I like to make the final line last as long as I can."


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From: Bill Pragnell
Subject: Re: Explanation [153KiB]
Date: 25 Oct 2005 06:50:00
Message: <web.435e0d53de6d2996731f01d10@news.povray.org>
I think it's a spider's eye view of being flushed down a bath plughole.
On drugs.

Very pretty! I think an animation might be illegal, however...

Bill


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From: Mike Raiford
Subject: Re: Explanation [153KiB]
Date: 25 Oct 2005 08:03:30
Message: <435e1f12$1@news.povray.org>
Daniel Hulme wrote:
>> Who can guess, what is this? Image has been scaled down with Gimp
>> (original 1024x768), but I'm NOT going to render it again for 800x600
>> or smaller (maybe 1600x1200 for background usage), while rendering
>> this one took over 173 hours...
> I don't care what it is, it's pretty. Could it be animated?
> 

At over 173 hours a frame, what century would the animation be done in?

-- 
~Mike

Things! Billions of them!


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From: Eero Ahonen
Subject: Re: Explanation [153KiB]
Date: 25 Oct 2005 14:27:14
Message: <435e7902$1@news.povray.org>
Bill Pragnell wrote:
> I think it's a spider's eye view of being flushed down a bath plughole.
> On drugs.

:)

It's actually an empty glasstube inside reflective chrometube, you know

difference {
 { cylinder } //outside limits
 { cylinder } //inside limits
 { sphere }   //rounding at one end
 { sphere }   //rounding at other end
}

-style, with glass one the radiuses are set to a bit littler than on the
chrome one. The glasstube's pigment is a greenish, bozo'd color_map.
Besides that, there's 4 different colour spotlight aimed to cross at the
front of the camera. Naturally there's media and radiosity involved
also. It's still lacking focal blur, which I think I'd like (focused at
the visible end of the tube).

> Very pretty! I think an animation might be illegal, however...

Not illegal, but extremely timetaking. With smaller resolution, without
antialiasing etc. rendering time would surely be possible to drop under
100 hours/frame (I'm not giving off the radiosity - it makes MUCH at
this image), but still, 100 hours is over 4 days and nights, with 25fps
(PAL) the first second would take 100 days...

I shall see what I can do for the rendering time. While rendering this
image my workstation was not a single second dedicated to Pov, so it
might also help "a bit".

> Bill

-- 
Eero "Aero" Ahonen
   http://www.zbxt.net
      aer### [at] removethiszbxtnetinvalid


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From: Ken Hutson
Subject: Re: Explanation [153KiB]
Date: 25 Oct 2005 23:42:12
Message: <435efb14@news.povray.org>
Perhaps render time could be reduced by eliminating the unseen sphere.
Kenneth Hutson


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From: Eero Ahonen
Subject: Re: Explanation [153KiB]
Date: 26 Oct 2005 00:36:09
Message: <435f07b9$1@news.povray.org>
Ken Hutson wrote:
> Perhaps render time could be reduced by eliminating the unseen sphere.
> Kenneth Hutson 
> 
> 

I wouldn't say it's unseen (especially while animated) - one of the
scene bases is reflection. But I'll try that, too. I'm now rendering
1600x1200 with focal blur for my desktop background, so it'll take a while.

 10:02:45 Rendering line 163 of 1200, 15846 rad. samples

-- 
Eero "Aero" Ahonen
   http://www.zbxt.net
      aer### [at] removethiszbxtnetinvalid


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From: Dave Matthews
Subject: Re: Explanation [153KiB]
Date: 18 Nov 2005 13:25:01
Message: <web.437e1bf3de6d29968c7259570@news.povray.org>
Eero Ahonen <aer### [at] removethiszbxtnetinvalid> wrote:

>  10:02:45 Rendering line 163 of 1200, 15846 rad. samples
>

In the time it takes to render, you could go out and purchase oil paints and
canvas, take several painting lessons, and then create it freehand ;-)

(And then you could make it even larger than 1500x1200, and some day, long
after you're dead, it would sell for millions....)

Cool image, by the way.

Dave Matthews


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From: Eero Ahonen
Subject: Re: Explanation [153KiB]
Date: 18 Nov 2005 18:21:18
Message: <437e61ee@news.povray.org>
Dave Matthews wrote:
> 
> In the time it takes to render, you could go out and purchase oil paints and
> canvas, take several painting lessons, and then create it freehand ;-)

You surely have no idea of my freehand. The hell will freeze AND warm up
before I can paint freehand.

> (And then you could make it even larger than 1500x1200, and some day, long
> after you're dead, it would sell for millions....)

And at 1100 lines, some nice conflict with my MoBo and kernel hanged my
PCI-slots (so the 3c905 NIC...) while using USB, and while my homedir is
over NFS, the rendering practically stopped there. I still haven't
actually traced the image perfectly for 1600x1200 :p.

> Cool image, by the way.

Thanks.

> Dave Matthews

-- 
Eero "Aero" Ahonen
   http://www.zbxt.net
      aer### [at] removethiszbxtnetinvalid


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From: Eero Ahonen
Subject: Re: Explanation [153KiB]
Date: 22 Nov 2005 12:56:08
Message: <43835bb8@news.povray.org>
Eero Ahonen wrote:
> over NFS, the rendering practically stopped there. I still haven't
> actually traced the image perfectly for 1600x1200 :p.
>

But now I have.

http://www.zbxt.net/misc_images/plasmtube.png (slow line, big image - be
patient).

http://www.zbxt.net/misc_images/plasmtube.jpg (smaller in size, but jpg;)

Render Statistics
Image Resolution 1600 x 1200
----------------------------------------------------------------------------
Pixels:          1950000   Samples:        15389403   Smpls/Pxl: 7.89
Rays:         5984298582   Saved:        2172775467   Max Level: 20/20
----------------------------------------------------------------------------
Ray->Shape Intersection          Tests       Succeeded  Percentage
----------------------------------------------------------------------------
Cone/Cylinder              39582340276     36289404212     91.68
CSG Intersection           19791170138     19791120795    100.00
Sphere                     39582340276     23032303047     58.19
----------------------------------------------------------------------------
Calls to Noise:          4277627656   Calls to DNoise:     11432731645
----------------------------------------------------------------------------
Shadow Ray Tests:       12169348354   Succeeded:            2268454348
Reflected Rays:          3810910545   Total Internal:        527618536
Refracted Rays:          2157441184
----------------------------------------------------------------------------
Radiosity samples calculated:            16863 (-0.00 %)
Radiosity samples reused:           -503868929
----------------------------------------------------------------------------
Number of photons shot:           47610
----------------------------------------------------------------------------
Smallest Alloc:                   9 bytes
Largest  Alloc:             7680008 bytes
Peak memory used:          10913875 bytes
Total Scene Processing Times
  Parse Time:    0 hours  0 minutes  1 seconds (1 seconds)
  Photon Time:   0 hours  0 minutes  0 seconds (0 seconds)
  Render Time:  81 hours  2 minutes 35 seconds (291755 seconds)
  Total Time:   81 hours  2 minutes 36 seconds (291756 seconds)



-- 
Eero "Aero" Ahonen
   http://www.zbxt.net
      aer### [at] removethiszbxtnetinvalid


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Preview of image 'plasmtube_small.jpg'
plasmtube_small.jpg


 

From: Alain
Subject: Re: Explanation [153KiB]
Date: 22 Nov 2005 19:33:30
Message: <4383b8da$1@news.povray.org>
Eero Ahonen nous apporta ses lumieres en ce 2005-11-22 12:56:
> Eero Ahonen wrote:
> 
>>over NFS, the rendering practically stopped there. I still haven't
>>actually traced the image perfectly for 1600x1200 :p.
>>
> 
> 
> But now I have.
> 
> http://www.zbxt.net/misc_images/plasmtube.png (slow line, big image - be
> patient).
> 
> http://www.zbxt.net/misc_images/plasmtube.jpg (smaller in size, but jpg;)
> 
Huge difference between PNG and JPG! JPG is prety dark while PNG is bright. Great
example of the 
gamma information included in PNGs.
Nice

-- 
Alain
-------------------------------------------------
WARNING: The consumption of alcohol may lead you to think people are laughing WITH
you.


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From: Eero Ahonen
Subject: Re: Explanation [153KiB]
Date: 23 Nov 2005 00:44:28
Message: <438401bc@news.povray.org>
Alain wrote:
> 
> Huge difference between PNG and JPG! JPG is prety dark while PNG is
> bright. Great example of the gamma information included in PNGs.
> Nice
> 

Yep.

The JPG is made by simply opening the file in the Gimp and saving it to
JPG. Personally, I like the darker one better, but gamma can be modified
with the PNG pretty easily, so I didn't modify it anyhow, if someone is
intrested in the most original version by Pov.

-- 
Eero "Aero" Ahonen
   http://www.zbxt.net
      aer### [at] removethiszbxtnetinvalid


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