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This took quite a lot of time to render (20 h for trace, 29 min for
photons) and i'm still not really satisfied. Guess i will have to do some
real world studies with a pot of water in the garden...
Some grainy artefacts are visible on the upper parts of the arches on the
left side of the picture. I'm not sure if they are caused by the photons
or by something else.
What i would really like to try is using an isosurface for the water
instead of the normal, but i'm a bit afraid of the render time.
Comments are welcome of course.
Christoph
--
Christoph Hormann <chr### [at] gmx de>
IsoWood include, radiosity tutorial, TransSkin and other
things on: http://www.schunter.etc.tu-bs.de/~chris/
Post a reply to this message
Attachments:
Download 'photons_a01.jpg' (103 KB)
Preview of image 'photons_a01.jpg'
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In article <3AC76B05.2FF7A4E6@gmx.de>, Christoph Hormann
<chr### [at] gmxde> wrote:
> This took quite a lot of time to render (20 h for trace, 29 min for
> photons) and i'm still not really satisfied. Guess i will have to do some
> real world studies with a pot of water in the garden...
It looks good, but judging from the scale of the water ripples and
caustics, the structure is a very small scale model, maybe 5 feet long.
Much smaller than expected, anyway...
> What i would really like to try is using an isosurface for the water
> instead of the normal, but i'm a bit afraid of the render time.
I'm not sure if it would make much of a difference in appearance, but
the render time shouldn't be to bad if you don't use pigment functions.
--
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/
<><
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Very cool! I too find the water pattern takes away. Looks like ridged
multi-fractal I say to myself, but the recursive structure holds my interest
bigtime. Seems like you're just a twist and a turn away from something very
good indeed!
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On Sun, 01 Apr 2001 19:53:09 +0200, Christoph Hormann
<chr### [at] gmxde> wrote:
>This took quite a lot of time to render (20 h for trace, 29 min for
>photons) and i'm still not really satisfied. Guess i will have to do some
>real world studies with a pot of water in the garden...
Yeah, about the only reason to leave the computer room is to check out
something in the real world :)
Try adding some radiosity if you're not afraid by the render times.
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG e-mail : pet### [at] tagpovrayorg
Post a reply to this message
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Chris Huff wrote:
>
> It looks good, but judging from the scale of the water ripples and
> caustics, the structure is a very small scale model, maybe 5 feet long.
> Much smaller than expected, anyway...
>
I know, already thought about making the waves smaller, but feared that
the caustics would get too uniform.
>
> I'm not sure if it would make much of a difference in appearance, but
> the render time shouldn't be to bad if you don't use pigment functions.
>
At least the water line looks very straight so i will probably try it
sometime, but i suppose it would be indeed quite a bit slower, especially
for the radiosity calculations.
Christoph
--
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other
things on: http://www.schunter.etc.tu-bs.de/~chris/
Post a reply to this message
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J Charter wrote:
>
> Very cool!
Thanks!
> I too find the water pattern takes away. Looks like ridged
> multi-fractal I say to myself, but the recursive structure holds my interest
> bigtime.
It is indeed RMF, because of the sharp ridges it's usually better for more
turbulent water, so maybe i should change it.
> Seems like you're just a twist and a turn away from something very
> good indeed!
Sorry, not sure what you mean with that.
Christoph
--
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other
things on: http://www.schunter.etc.tu-bs.de/~chris/
Post a reply to this message
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Peter Popov wrote:
>
> Yeah, about the only reason to leave the computer room is to check out
> something in the real world :)
That's the reason why I often wish to have a laptop - sadly those things
are quite expensive.
>
> Try adding some radiosity if you're not afraid by the render times.
>
Oh, i didn't mention it , but it actually uses radiosity, without i
suppose the render time would be just half of it.
Christoph
--
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other
things on: http://www.schunter.etc.tu-bs.de/~chris/
Post a reply to this message
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In article <3AC76B05.2FF7A4E6@gmx.de>, Christoph Hormann says...
>
> This took quite a lot of time to render (20 h for trace, 29 min for
> photons) and i'm still not really satisfied. Guess i will have to do some
> real world studies with a pot of water in the garden...
>
> Some grainy artefacts are visible on the upper parts of the arches on the
> left side of the picture. I'm not sure if they are caused by the photons
> or by something else.
>
> What i would really like to try is using an isosurface for the water
> instead of the normal, but i'm a bit afraid of the render time.
>
> Comments are welcome of course.
>
> Christoph
>
>
A very intriguing image! Reminds me of Escher, though he didn't use this
theme to do an infinity picture, IIRC. I like the effects of
reflections.
--
Regards, Sander
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Christoph Hormann wrote:
> J Charter wrote:
> > Seems like you're just a twist and a turn away from something very
> > good indeed!
>
> Sorry, not sure what you mean with that.
>
I not exactly sure either. Guess I had the current IRTC topic in mind.
I like that topic because I recall a fellow grad student who did sculptures
based on bunkers. They used bunker shapes
to suggest ideas ranging from our need for inner security to the unexpected
beauty of armaments. Your combination of what might be a
fortress structure with the use of recursive forms may lead to something
transendent. Guess that is what I was thinking but I hesitated to be so
specific.
-Jim
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On Sun, 01 Apr 2001 23:17:16 +0200, Christoph Hormann
<chr### [at] gmxde> wrote:
>Oh, i didn't mention it , but it actually uses radiosity, without i
>suppose the render time would be just half of it.
Hmm... the lighting intensities seem radiositish indeed, but it's too
desaturated for a ocean-and-clear-blue-sky-and-bright-yellow-sun
picture. Maybe decrease (or increase? I can't grasp these things)
gray_threshold and/or use a more saturated yellow for the light source
and blue for the sky.
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG e-mail : pet### [at] tagpovrayorg
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