Hi all,

here I show the beginning of my next IRTC entry (hopefully, if I´ll have
time enough).
I´ve a little problem:
My "water" is a hollow box and the camera is inside. Photons are stored and
reused in a second render.
If I use "double_illuminate" together with the grass mesh, no fog can be
seen.
Grass and trees are only placeholders, but this little problem is
irritating.

Any suggestions?

Norbert

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Attachments:
Download 'underwater.jpg' (100 KB)

Preview of image 'underwater.jpg'

I 'm sorry I can't help you with your problem... I can only say that what
you've achieved is beautiful.

Congratulations,

Fernando.

"Norbert Kern" <nor### [at] t-onlinede> wrote in message
news:3c4206b8$3@news.povray.org...
> Hi all,
>
> here I show the beginning of my next IRTC entry (hopefully, if I´ll have
> time enough).
> I´ve a little problem:
> My "water" is a hollow box and the camera is inside. Photons are stored
and
> reused in a second render.
> If I use "double_illuminate" together with the grass mesh, no fog can be
> seen.
> Grass and trees are only placeholders, but this little problem is
> irritating.
>
> Any suggestions?
>
> Norbert
>
>
>
>
>

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Try scattering media instead of fog.
Looks good so far. How about adding fresnel reflection to the water?

--
- Nekar

http://nekar_xenos.tripod.com/metanoia/

"Norbert Kern" <nor### [at] t-onlinede> wrote in message
news:3c4206b8$3@news.povray.org...
> Hi all,
>
> here I show the beginning of my next IRTC entry (hopefully, if I´ll have
> time enough).
> I´ve a little problem:
> My "water" is a hollow box and the camera is inside. Photons are stored and
> reused in a second render.
> If I use "double_illuminate" together with the grass mesh, no fog can be
> seen.
> Grass and trees are only placeholders, but this little problem is
> irritating.
>
> Any suggestions?
>
> Norbert
>
>
>
>
>


---
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Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.298 / Virus Database: 161 - Release Date: 2001/11/13

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Norbert Kern wrote:
> 
> Hi all,
> 
> here I show the beginning of my next IRTC entry (hopefully, if I´ll have
> time enough).

Entering two rounds in sequence?  You must have a lot of spare time...

> I´ve a little problem:
> My "water" is a hollow box and the camera is inside. Photons are stored and
> reused in a second render.
> If I use "double_illuminate" together with the grass mesh, no fog can be
> seen.
> Grass and trees are only placeholders, but this little problem is
> irritating.
> 
> Any suggestions?
> 

I think media would be a better solution anyway, with scattering you could
even show the shadows of the trees...

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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> I 'm sorry I can't help you with your problem... I can only say that what
> you've achieved is beautiful.
>
> Congratulations,
>
> Fernando.


thanks!

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> Try scattering media instead of fog.
> Looks good so far. How about adding fresnel reflection to the water?
>
> --
> - Nekar

I`ll give media a try. thanks!
Actually I´m using variable reflection (reflection {0.03,1 fresnel on
metallic 0.2}).
But the water doesn´t look like in reality, so I´m open for suggestions.

Norbert

Post a reply to this message

Norbert Kern wrote:
> 
> But the water doesn´t look like in reality, so I´m open for suggestions.
> 

I think it looks fairly good already, i don't look at water surfaces from
below very often so i'm not completely sure... ;-)  In contrast to water
from above you have the effect of total reflection at shallow angle.

Maybe try raising the minimum reflection to just a bit above 0.  In
addition i suppose media could also have a good effect on this too.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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> Entering two rounds in sequence?  You must have a lot of spare time...


Not so much as I want, but I know, what you mean.
And you? - two entries in one single year; some people might think you are
exaggerating.


> I think media would be a better solution anyway, with scattering you could
> even show the shadows of the trees...
>
> Christoph


I´ll use media, but there will be no shadow from the trees in my little
pond.
Here a sight of my little world from above.

Norbert

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Attachments:
Download 'underwater_air.jpg' (64 KB)

Preview of image 'underwater_air.jpg'

Norbert Kern wrote:
> 
> > Entering two rounds in sequence?  You must have a lot of spare time...
> 
> Not so much as I want, but I know, what you mean.
> And you? - two entries in one single year; some people might think you are
> exaggerating.

Are you trying to say i'm unproductive? ;-)

Sometimes it's simply more appealing not to have a fixed topic and a
deadline, at least this is more cooperative to real life obligations...

> 
> I´ll use media, but there will be no shadow from the trees in my little
> pond.
> Here a sight of my little world from above.
> 

Well, maybe you should add some trees behind.  I think some shadowing
would improve it although radiosity would be quite mandatory then.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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"Christoph Hormann" <chr### [at] gmxde> schrieb im Newsbeitrag
news:3C4### [at] gmxde...

>
> Are you trying to say i'm unproductive? ;-)


I would never risk such an assertion!   though...  ;-)
(I´m kidding).
Are you actually aware about having set up the record for the longest render
time (ca. 12 days)
of all IRTC entries?
Although Gena Obukhov with 83 h on 15 Dec Alphas
(http://www.irtc.org/ftp/pub/stills/2000-08-31/gosea.jpg) and Claudio
'Naxos' Gallego with 235 h on a 4 processor machine
(http://oz.irtc.org/ftp/pub/stills/1997-02-28/bar.jpg) perhaps beat you in
terms of Tflops per entry ;-)


> Well, maybe you should add some trees behind.  I think some shadowing
> would improve it although radiosity would be quite mandatory then.
>
> Christoph

Nothimg is ready. Plants, trees, heightfield and water are only provisional
to get a quick impression.

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Norbert Kern wrote:
> 
> Are you actually aware about having set up the record for the longest render
> time (ca. 12 days)
> of all IRTC entries?
> Although Gena Obukhov with 83 h on 15 Dec Alphas
> (http://www.irtc.org/ftp/pub/stills/2000-08-31/gosea.jpg) and Claudio
> 'Naxos' Gallego with 235 h on a 4 processor machine
> (http://oz.irtc.org/ftp/pub/stills/1997-02-28/bar.jpg) perhaps beat you in
> terms of Tflops per entry ;-)
> 

No, i wasn't aware, are you sure you did not miss anything longer?

I sadly lost the render stats for it because i piped another render
afterwards and it crashed.

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

"Christoph Hormann" <chr### [at] gmxde> schrieb im Newsbeitrag
news:3C44A901.DBA31D43@gmx.de...
>
>
> Norbert Kern wrote:
> >
> > Are you actually aware about having set up the record for the longest
render
> > time (ca. 12 days)
> > of all IRTC entries?
> > Although Gena Obukhov with 83 h on 15 Dec Alphas
> > (http://www.irtc.org/ftp/pub/stills/2000-08-31/gosea.jpg) and Claudio
> > 'Naxos' Gallego with 235 h on a 4 processor machine
> > (http://oz.irtc.org/ftp/pub/stills/1997-02-28/bar.jpg) perhaps beat you
in
> > terms of Tflops per entry ;-)
> >
>
> No, i wasn't aware, are you sure you did not miss anything longer?
>

I have to confess a mistake. Render time for H.E. Day´s "Arkansas
Chicken..." were 14 days
(
http://www.povray.org/preview/irtc-cd3/stills/19981231/view/ac_vs_eb.htm ).
Sorry

Anyway, more important than the render stats is the image itself. And
ShangriLa is truly amazing.

Norbert

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Norbert Kern wrote:
> 
> I have to confess a mistake. Render time for H.E. Day´s "Arkansas
> Chicken..." were 14 days
> (
> http://www.povray.org/preview/irtc-cd3/stills/19981231/view/ac_vs_eb.htm ).
> Sorry

Well, i can try to beat that the next time. ;-)

> 
> Anyway, more important than the render stats is the image itself. And
> ShangriLa is truly amazing.
> 

Thanks, i'm curious about the comments, hopefully they will be available
soon...

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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