> Gilles Tran wrote:
>   It looks fantastic here. But I must disagree with some other comments: I
> don't see it as "photo-realistic", but more as "photo-realistic painting".
> I inmediately perceive it's not a photo, but I will never suspect it is a
> render... my first impression is that it is a paint job, done perhaps with
> mixed techniques. That's great!

Bingo ! You got it !

Inspiration came less from photos than from XVIIe landscape paintings.
See Claude Lorrain here http://gallery.euroweb.hu/html/c/claude/2/index.html
and Aelbert Cuyp here
http://gallery.euroweb.hu/html/c/cuyp/aelbert/1/index.html

Still some way to go before I get even remotely there though.

G.

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news: 3d3d4277@news.povray.org...

>
> --
> Jaime Vives Piqueres
>
> La Persistencia de la Ignorancia
> http://www.ignorancia.org

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Gilles Tran wrote:
> 
> A major issue this one :( particularly if I want to print it (I had trouble
> with this before). There are indeed black spots all over the place
> (including some of the leaves). Part is due to the post-process I did.
> Possibly the only way out would be to ouptut to 48 bit and then use the
> compression technique shown by Kari Kivisalo here
> http://www.luxlab.com/c/compress.htm
> but I don't have Photoshop and my image editor doesn't support 48 bit images
> (I haven't tried the Gimp though).
> 

Have you tried:

http://www-public.tu-bs.de:8080/~y0013390/hcredit/index.html

It's of course not as flexible and universal as Photoshop and GIMP, but
color correction works quite well.  I'm currently planning to add some
function making it possible to merge a picture rendered in stripes on
different machines, currently you have to edit all parts separately and
merge them as 24 bit in a different program in such a case.

Christoph

-- 
POV-Ray tutorials, IsoWood include,                 
TransSkin and more: http://www.tu-bs.de/~y0013390/  
Last updated 15 Jul. 2002 _____./\/^>_*_<^\/\.______

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3D3D4CCD.20BF9820@gmx.de...
> Have you tried:
> http://www-public.tu-bs.de:8080/~y0013390/hcredit/index.html

In fact I tried the focal blur last week (which works great, I'll let you
know once I managed to do something with it) but forgot about the color
correction (note that one great feature would be tone correction aka
"levels" in PS I think, BTW).
So that I'm rendering now a 48-bit version at 480*640 with improved
antialiasing to see how it comes out.

G.

--

**********************
http://www.oyonale.com
**********************
- Graphic experiments
- POV-Ray and Poser computer images
- Posters

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Gilles Tran wrote:
> 
> In fact I tried the focal blur last week (which works great, I'll let you
> know once I managed to do something with it) but forgot about the color
> correction (note that one great feature would be tone correction aka
> "levels" in PS I think, BTW).

You probably mean what's called 'Tonwertkorrektur' in german PS.  It
specifies which colors in the original image are supposed to be white,
black and 50% gray in the result.  I'm not yet sure how this is handled
internally, but it surely would be an interesting function.

Christoph

-- 
POV-Ray tutorials, IsoWood include,                 
TransSkin and more: http://www.tu-bs.de/~y0013390/  
Last updated 15 Jul. 2002 _____./\/^>_*_<^\/\.______

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3D3D5F02.BB235644@gmx.de...
> You probably mean what's called 'Tonwertkorrektur' in german PS.  It
> specifies which colors in the original image are supposed to be white,
> black and 50% gray in the result.  I'm not yet sure how this is handled
> internally, but it surely would be an interesting function.

In fact Picture Publisher and the Gimp have it too (so I suppose that the
code is available). It's the function I use most for color correction, as it
is very fast and flexible and gives the user a lot of control (there's also
an "automatic" mode).

G.


--

**********************
http://www.oyonale.com
**********************
- Graphic experiments
- POV-Ray and Poser computer images
- Posters

> --
> POV-Ray tutorials, IsoWood include,
> TransSkin and more: http://www.tu-bs.de/~y0013390/
> Last updated 15 Jul. 2002 _____./\/^>_*_<^\/\.______

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Gilles Tran wrote:
> 
> [...]
> 
> In fact Picture Publisher and the Gimp have it too (so I suppose that the
> code is available). It's the function I use most for color correction, as it
> is very fast and flexible and gives the user a lot of control (there's also
> an "automatic" mode).

All right, i will have a look at the GIMP source (although it's really not
what i would call 'easy reading' ;-)).

Christoph

-- 
POV-Ray tutorials, IsoWood include,                 
TransSkin and more: http://www.tu-bs.de/~y0013390/  
Last updated 15 Jul. 2002 _____./\/^>_*_<^\/\.______

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Simply outstanding. Well beyond my humble comprehension of POV-Ray.

Gilles, you're probably the best POV'er of all times! Gotta love oyonale...

Salute!

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Another very interesting color correction variant has been added to
Photoshop 7. They call it Auto Color. Check out this video (Quicktime) to
see what it does. http://www.adobe.com/products/photoshop/movie_nf3.html

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That is the sound of my jaw dropping to the floor!

Wow and wow some more!

"Gilles Tran" <tra### [at] inapginrafr> wrote in message
news:3d3c72af@news.povray.org...
> Jpeg compression wasn't too kind on this one :( Well I'll put some
close-ups
> and details on my site sometimes in the next months.
>
> - Rendered with povray 3.5
> - Uses low quality radiosity (count 10 error_bound 1...)
> - Terragen sky
> - Terrain modelled with World Machine (beta)
> http://students.washington.edu/sschmitt/world/ (great prog, BTW)
> - Render time at 1200*1600 takes 6 hours and 600 MB of RAM (P4, 1.7Gz, 1Gb
> RAM)
> - 15000 plants with something like 20 different Xfrog models, all by me
> except the main tree, the small bushes and trees in the background, and
some
> grass. The "evil" tree is by me too. 2000 leaves and twigs in the pond.
> Possibly I'll make some of the plants available later this year.
> - The hardest part was to create the backlit leaves for the main tree. For
> this I had to make "fleshy" leaves and fill them with scattering media. I
> wish I could have done it on all the plants, but either I'll wait for
faster
> machines or find a better solution for backlit translucent material. Some
of
> the flowers were double_illuminated.
> - Dragonflies modelled in Rhino with the demo version (before I bought
it).
> They'll surely look better at the final full res of 6000*8000 which is
> rendering now.
> - The frog is a Poser one. It's almost invisible at 600*800 but it's
> there...
> - Regrets : the lighting. I had a lot of trouble with it, as the original
> image
> is not very gamma-tolerant : it looked ugly on low-gamma monitors and much
> too dark on others. I had to find a middle way so I tweaked the tones in
> post-process and some colors were lost (and there's some extra graininess
> too). I hope it looks right on your PC or Mac.
>
> G.
>
> --
>
> **********************
> http://www.oyonale.com
> **********************
> - Graphic experiments
> - POV-Ray and Poser computer images
> - Posters
>
>
>
>
>

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That is one stunning image. 

-- 
sphere{z*5,1pigment{rgb.5}finish{reflection.3specular.5}}box{<-50,-3,-50>
<50,-2,50>pigment{checker/*\__\\__/  * \_\\__*/scale 2}finish{ambient.7}}
light_source/*__\\__\\__\\__\\__\(    ~ )\__\\__\\__\\__\\*/{<2,5,1>*4,1} 
/*\\__\\__\\__\\__\\__\\__\\__\\__\~  -/__\\__\\__\\__\\__\\*//* Steve */

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