Marc Jacquier wrote:

news:
> 3D3D12CC.5D0F2200@gmx.de...
> > Also the waves here are quite high frequency, something also indicating
> strong wind effect.
>
> I don't agree on this point: wavelength depends of the *fetch* i.e. the
> length on which the wind interacts with the water. the wavelength
increases
> with the fetch, so, on small ponds, you only have hi-frequency ripples.
> With this surrounding you may have some turbulence caused by plants, some
> area beeing exposed to breeze while others are sheltered.

Not meaning to pick holes in things, but I'd tend to agree.  I have a lake
behind my house here, and the stronger the wind, the choppier and larger the
waves generally become, and seemingly more consistent overall.  On most days
when the wind is quite soft, there are usually a lot more very small ripples
and turbulent 'patches' where the ripples appear to be non-existent or
moving in the opposite direction to the surrounding area.  It's a very
strange effect and seeing Gilles' image reminded me of it immediately (as I
posted in my original reply).  I often sit outside late at night watching
the ripples under the moon light (nights like tonight, actually).

Lance.

thezone.firewave.com.au
www.firewave.com.au

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One word  "Incredible!", as is all of your work.

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This is absolutely stunning!!! How long did it take you?

Gail
--
#macro G(H,S)disc{0z.4pigment{onion color_map{[0rgb<sin(H/pi)cos(S/pi)*(H<6)
cos(S/pi)*(H>6)>*18][.4rgb 0]}}translate<H-5S-3,9>}#end G(3,5)G(2,5.5)G(1,5)
G(.6,4)G(.5,3)G(.6,2)G(1,1)G(2,.5)G(3,.7)G(3.2,1.6)G(3.1,2.5)G(2.2,2.5)G(9,5
)G(8,5.5)G(7,5)G(7,4)G(7.7,3.3)G(8.3,2.7)G(9,2)G(9,1)G(8,.5)G(7,1)///GS

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JRG wrote:

> More likely we'll be able to purchase the poster from zazzle... most of his works
are
> worth it though. :-)

Hu, didn't know zazzle. I was precisely looking for a poster for my new 
appartment :-)

-- 
Jul### [at] cnedraorg
http://www.cnedra.org

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news: 3d3d9655@news.povray.org...
> Bill DeWitt wrote:
> >     The only things I can think of is [...]
> > [...] and/or maybe "evilize" the reflected sky somewhat
> > to give more clues (but which also destroys the singular nature of the
> > evil tree).
>
>    I also had the same problems recognizing the "evil part", and my idea
> was the same. Is not that bad idea at all... why only the tree has to have
> an evil side? This idea in fact seems better to me: is the pond who has
the
> power to show the evil side of everything it reflects.

Well, I tend to enjoy the idea that most of the people who see the image
will just see another pretty (or banal) pond-with-tree-with-flowers image
and that a few of them will have the appropriate delayed reaction. Of
course, it could be made more obvious, with Bill's and yours variants, and
these would make great images, perhaps more meaningful. I played with other
ideas as well, like putting a whole city in the reflection, which could be
an alternate version.
Still I like it more subdued. Why ? Because the interesting thing is that
after all it is obvious. The reflection is large, dark, gnarled, spiky and
leafless, right in the middle, and itself quite disturbing (I took the
inspiration from a sycamore tree by Andrew Wyeth like the following one
http://www.gallery-ii.com/images/wyeth_pa-landscape.jpg).
In fact, I should render the image with the normal reflection so that people
could see the difference (perhaps I'll just do that for the "making of").
There should be no need to pump up the evilness. However, most of us will
miss it - I'd miss it too - because we get confused by the pretty and normal
environment. Let's say that it's fortunate that we have such a positive and
optimistic nature :-)


G.

--

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

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Gilles Tran wrote:

> Well, I tend to enjoy the idea that most of the people who see the image
> will just see another pretty (or banal) pond-with-tree-with-flowers image
> and that a few of them will have the appropriate delayed reaction.

It took me some time to 'see' it.  In fact, I've seen it when I started
wondering 'but why does he called it "dark side" ?'...

Once again, you made it !  You're several years ahead from the best
of us, as should be an artist !  (I hope I didn't hurt your terrible*
modesty...)

(* in the english meaning too...)

Fabien.

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3d3d9dbe@news.povray.org...
> This is absolutely stunning!!! How long did it take you?
Thanks. The render at 1200*1600 took 6 hours so it's 90 min at 600*800. Many
quality parameters have low settings though, particularly antialiasing,
radiosity and area_lights.
Construction time took about two weeks, a good part of it spent on learning
to create xfrog plants and tweaking image maps of bark and leaves. The image
here is a version 10, while most of my IRTC images were version 15 or
higher.

G.

--

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

> --
> #macro G(H,S)disc{0z.4pigment{onion
color_map{[0rgb<sin(H/pi)cos(S/pi)*(H<6)
> cos(S/pi)*(H>6)>*18][.4rgb 0]}}translate<H-5S-3,9>}#end
G(3,5)G(2,5.5)G(1,5)
>
G(.6,4)G(.5,3)G(.6,2)G(1,1)G(2,.5)G(3,.7)G(3.2,1.6)G(3.1,2.5)G(2.2,2.5)G(9,5
> )G(8,5.5)G(7,5)G(7,4)G(7.7,3.3)G(8.3,2.7)G(9,2)G(9,1)G(8,.5)G(7,1)///GS
>
>

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In article <3D3D12CC.5D0F2200@gmx.de>,
 Christoph Hormann <chr### [at] gmxde> wrote:

> Since this is really a minor issue i don't want to make much ado about it,
> but i disagree on this.  Such abrupt changes only occur with relatively
> strong and rapidly changing wind.  Also the waves here are quite high
> frequency, something also indicating strong wind effect.  The plants in
> the picture imply it is quite calm.  Maybe some concentric structures
> produced by bubbles or animals would be a nice detail.

I see these quite often on our ponds and a nearby lake without any 
strong wind. They look very realistic to me, right down to the borders 
between the disturbed areas and the mirror-smooth areas. It occurs when 
there is an unsteady breeze or something is blocking the wind causing 
turbulent flow, so it is blowing against the water in some small places 
but not in others. I see nothing in this image that would contradict 
this...the plants and tree seem like just the thing to make it more 
likely.

The frequency of ripples has more to do with the size of the body of 
water and the steadiness of the wind, and the area of water exposed to 
the wind.

-- 
Christopher James Huff <chr### [at] maccom>
POV-Ray TAG e-mail: chr### [at] tagpovrayorg
TAG web site: http://tag.povray.org/

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In article <3d3d47f3$1@news.povray.org>,
 "Gilles Tran" <tra### [at] inapginrafr> 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).

With MegaPOV you might have been able to get something with the 
raw_image and curves post_process filters...I made them specifically for 
dynamic range compression, and the precision is better than 48 bit (the 
raw_image filter restores the full float precision colors). Don't know 
of any workaround for 3.5 though, you would have to use an external 
program.

-- 
Christopher James Huff <chr### [at] maccom>
POV-Ray TAG e-mail: chr### [at] tagpovrayorg
TAG web site: http://tag.povray.org/

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"Gilles Tran" wrote:
> Hi
> Thanks for the comments. There'll be a zazzle poster but I'll also make
> available a larger version at 1200*1600 on my site. In fact I'll try to put
> 1200*1600 versions of the images from now on (there's the "Wet bird"
> already).

That's great to hear. Looking forward to your next update.

> BTW, Jonathan, would it be possible for you to upload the latest version of
> your scatter macro to povray.binaries.scene-files ? I wanted it for somebody
> in the French group some time ago and your site was down :( I finally found
> it in a zip file at irtc.org (thanks google) but I'm not sure it's the
> latest version... and it's a great macro !

It wasn't down... it simply wasn't there anymore. They changed it into
http://digilander.libero.it/jrgpov/.
The macro is there but... I had a second look at it and *horror*... well when I wrote
it I didn't even know what programming mean, it's a real mess written *on the fly* as
ideas flowed from my mind... I'm not going to post it here because of this.


--
Jonathan.

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