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I again started making some experiments with isosurfaces and radiosity,
now with a new faster computer that's much more fun than before, but still
quite slow.
The isosurface function is fairly simple, a 'blob' from a plane and a
sphere with an agate pigment function added.
The radiosity quality settings are quite high, probably could reduce count
to some extend without visible artefacts. The scene took 52 hours to
render at this size, statistics showed an incredible amount of 105 billion
DNoise calls, again a sign that current isosurface code is far from being
efficient with slow isosurface functions.
Christoph
--
Christoph Hormann <chr### [at] gmx de>
IsoWood include, radiosity tutorial, TransSkin and other
things on: http://www.schunter.etc.tu-bs.de/~chris/
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Download 'rad_iso_01.jpg' (86 KB)
Preview of image 'rad_iso_01.jpg'
![rad_iso_01.jpg](/povray.binaries.images/attachment/%3C3B4B6914.A2A00614%40gmx.de%3E/rad_iso_01.jpg?preview=1)
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Aww come on, no fair, your not supposed to post photos in here!:-)
"Christoph Hormann" <chr### [at] gmx de> wrote in message
news:3B4B6914.A2A00614@gmx.de...
>
> I again started making some experiments with isosurfaces and radiosity,
> now with a new faster computer that's much more fun than before, but still
> quite slow.
>
> The isosurface function is fairly simple, a 'blob' from a plane and a
> sphere with an agate pigment function added.
>
> The radiosity quality settings are quite high, probably could reduce count
> to some extend without visible artefacts. The scene took 52 hours to
> render at this size, statistics showed an incredible amount of 105 billion
> DNoise calls, again a sign that current isosurface code is far from being
> efficient with slow isosurface functions.
>
> Christoph
>
> --
> Christoph Hormann <chr### [at] gmx de>
> IsoWood include, radiosity tutorial, TransSkin and other
> things on: http://www.schunter.etc.tu-bs.de/~chris/
----------------------------------------------------------------------------
----
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That's very realistic! Looks like some sort of mineral deposit from a
hot spring.
--
David Fontaine <dav### [at] faricy net> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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Amazing results.. All 52 hours counted on this image!
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Very very impressive. It's amazing how good a "simple" isosurface can look :)
Can you post the source please? I'd love to have a look at the isosurface and
radiosity settings.
--
Tek
http://www.evilsuperbrain.com
Christoph Hormann <chr### [at] gmx de> wrote in message
news:3B4B6914.A2A00614@gmx.de...
>
> I again started making some experiments with isosurfaces and radiosity,
> now with a new faster computer that's much more fun than before, but still
> quite slow.
>
> The isosurface function is fairly simple, a 'blob' from a plane and a
> sphere with an agate pigment function added.
>
> The radiosity quality settings are quite high, probably could reduce count
> to some extend without visible artefacts. The scene took 52 hours to
> render at this size, statistics showed an incredible amount of 105 billion
> DNoise calls, again a sign that current isosurface code is far from being
> efficient with slow isosurface functions.
>
> Christoph
>
> --
> Christoph Hormann <chr### [at] gmx de>
> IsoWood include, radiosity tutorial, TransSkin and other
> things on: http://www.schunter.etc.tu-bs.de/~chris/
--------------------------------------------------------------------------------
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Yike!
source now dammit !!
--
Rick
Kitty5 WebDesign - http://Kitty5.com
Hi-Impact database driven web site design & e-commerce
TEL : +44 (01625) 266358 - FAX : +44 (01625) 611913 - ICQ : 15776037
POV-Ray News & Resources - http://Povray.co.uk
PGP Public Key
http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x231E1CEA
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David Fontaine wrote:
>
> That's very realistic!
Agreed.
> Looks like some sort of mineral deposit from a hot spring.
Except mineral deposits don't hover in mid-air!
--
Francois Labreque | Unfortunately, there's no such thing as a snooze
flabreque | button on a cat who wants breakfast.
@ | - Unattributed quote from rec.humor.funny
videotron.ca
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Download 'rad_iso_02.jpg' (49 KB)
Preview of image 'rad_iso_02.jpg'
![rad_iso_02.jpg](/povray.binaries.images/attachment/%3C3B4B9ECB.2C0D7F43%40videotron.ca%3E/rad_iso_02.jpg?preview=1)
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No less than incredible. A *real* beautiful render.
Bob H.
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"Francois Labreque" <fla### [at] videotron ca> wrote in message
news:3B4B9ECB.2C0D7F43@videotron.ca...
>
> Except mineral deposits don't hover in mid-air!
Who threw that rock?
Excellent btw.
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From: Christoph Hormann
Subject: Re: isosurface & radiosity test (86k)
Date: 11 Jul 2001 05:57:13
Message: <3B4C237A.61B78706@gmx.de>
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David Fontaine wrote:
>
> That's very realistic!
Thanks!
> Looks like some sort of mineral deposit from a
> hot spring.
>
Maybe, but there isn't any water around...
For rocks, it's much too smooth, probably. Will have to work on that...
Christoph
--
Christoph Hormann <chr### [at] gmx de>
IsoWood include, radiosity tutorial, TransSkin and other
things on: http://www.schunter.etc.tu-bs.de/~chris/
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