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The image was created with a ridgedmf isosurface. Although low in memory
consumption it took half an hour in a 233 Mhz iMac to render.
Comments?
Post a reply to this message
Attachments:
Download 'water.jpg' (43 KB)
Preview of image 'water.jpg'
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Alberto wrote:
>
> The image was created with a ridgedmf isosurface. Although low in memory
> consumption it took half an hour in a 233 Mhz iMac to render.
> Comments?
>
Looks promising, even though it misses some reflection of the sky (is
there a sky ? :-)
I'm also not sure about the sharp dark lines.
Christoph
--
Christoph Hormann <chr### [at] gmx de>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/
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I think it's great! i belive the dark lines actually _will_ show up. Only a
hunch, of course. I can really see this with some blinn-highlights, photons
and stuff! IMO this ridgedmf is _perfet_ for a semi-stirred-up ocean.
Simen.
>Alberto wrote:
>>
>> The image was created with a ridgedmf isosurface. Although low in memory
>> consumption it took half an hour in a 233 Mhz iMac to render.
>> Comments?
>>
>
>Looks promising, even though it misses some reflection of the sky (is
>there a sky ? :-)
>
>I'm also not sure about the sharp dark lines.
>
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How about some transparency, some slight turbulence in the pigment, and a
foreboding shark fin to go along with the dark, ominous mood?
"Alberto" <jac### [at] usbve> wrote in message news:395679CB.A3293EDE@usb.ve...
> The image was created with a ridgedmf isosurface. Although low in memory
> consumption it took half an hour in a 233 Mhz iMac to render.
> Comments?
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I haven't thought of using ridgedMF for water yet, it works good! Is yours an
isosurface, hf, or surface normal on a plane?
Alberto wrote:
> The image was created with a ridgedmf isosurface. Although low in memory
> consumption it took half an hour in a 233 Mhz iMac to render.
> Comments?
>
> ------------------------------------------------------------------------
> [Image]
--
Samuel Benge
E-Mail: STB### [at] aolcom
Visit my isosurface tutorial at http://members.aol.com/stbenge
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On Sun, 25 Jun 2000 17:30:01 -0400, Alberto <jac### [at] usbve> wrote:
>The image was created with a ridgedmf isosurface. Although low in memory
>consumption it took half an hour in a 233 Mhz iMac to render.
>Comments?
A great demonstration of the ridgedmf isosurface, congrats! The shape
is great, now go for the surface and interior properties and it'll
look perfect!
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] usanet
TAG e-mail : pet### [at] tagpovrayorg
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I expect an animation in .animations by tommorow...
Great work! :)
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> Looks promising, even though it misses some reflection of the sky (is
> there a sky ? :-)
>
> I'm also not sure about the sharp dark lines.
>
> Christoph
Well, actually there is no sky, only a white background. I'll put a sky
and see what happens.
Alberto.
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Simen Kvaal wrote:
>
> I think it's great! i belive the dark lines actually _will_ show up. Only a
> hunch, of course. I can really see this with some blinn-highlights, photons
> and stuff! IMO this ridgedmf is _perfet_ for a semi-stirred-up ocean.
>
> Simen.
>
Thanks for the comments. I also considered the blinn-highlights but the
isosurface uses a 1.3 ior and that's too low for this purpose. :-(
Alberto.
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SamuelT wrote:
>
> I haven't thought of using ridgedMF for water yet, it works good! Is yours an
> isosurface, hf, or surface normal on a plane?
>
As I mentioned before it's an isosurface
isosurface{function{y - myridgedmf(x, y, z)}...
Alberto
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"Tony[B]" wrote:
>
> I expect an animation in .animations by tommorow...
>
> Great work! :)
Thank you.
Alberto.
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Peter Popov wrote:
>
> On Sun, 25 Jun 2000 17:30:01 -0400, Alberto <jac### [at] usbve> wrote:
>
> >The image was created with a ridgedmf isosurface. Although low in memory
> >consumption it took half an hour in a 233 Mhz iMac to render.
> >Comments?
>
> A great demonstration of the ridgedmf isosurface, congrats!
Thanks!
>The shape
> is great, now go for the surface and interior properties and it'll
> look perfect!
I'll work on it.
Alberto
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On Mon, 26 Jun 2000 00:07:55 +0200, Christoph Hormann
<Chr### [at] schunteretctu-bsde> wrote:
>Looks promising, even though it misses some reflection of the sky (is
>there a sky ? :-)
>
>I'm also not sure about the sharp dark lines.
Just for comparison, I've attached an actual photograph I took of a
nearby lake. I think Alberto came *very* close to real water with his
POV rendering. You'll notice that those "sharp dark lines" also appear
in my photo.
Later,
Glen Berry
( Remove the "7" from 7no### [at] ezwvcom to email me. )
Post a reply to this message
Attachments:
Download 'blue_water.jpg' (72 KB)
Preview of image 'blue_water.jpg'
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Glen Berry wrote:
>
> Just for comparison, I've attached an actual photograph I took of a
> nearby lake. I think Alberto came *very* close to real water with his
> POV rendering. You'll notice that those "sharp dark lines" also appear
> in my photo.
>
Saw them,
<picky>but they are not that many and not in the foreground </picky>:-)
Maybe some angle dependant reflection would be good.
BTW, if I should have guessed, i would have taken your photo as a
rendering, <joking> you should work on the color </joking> :-)
Christoph
--
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/
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Simen Kvaal wrote:
>
> I think it's great! i belive the dark lines actually _will_ show up. Only a
> hunch, of course. I can really see this with some blinn-highlights, photons
> and stuff! IMO this ridgedmf is _perfet_ for a semi-stirred-up ocean.
>
I agree with you about the ridgedmf, it's really good for water. Maybe
some nonlinear scaling would be good.
To the dark lines: Maybe they are natural, but they are quite
irritating. For a definite conclusion, I think we have to see it with
some sky.
Christoph
--
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/
Post a reply to this message
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how did it turn out so blue? seems otherworldly.
Glen Berry wrote:
>
> On Mon, 26 Jun 2000 00:07:55 +0200, Christoph Hormann
> <Chr### [at] schunteretctu-bsde> wrote:
>
> >Looks promising, even though it misses some reflection of the sky (is
> >there a sky ? :-)
> >
> >I'm also not sure about the sharp dark lines.
>
> Just for comparison, I've attached an actual photograph I took of a
> nearby lake. I think Alberto came *very* close to real water with his
> POV rendering. You'll notice that those "sharp dark lines" also appear
> in my photo.
>
> Later,
> Glen Berry
>
> ( Remove the "7" from 7no### [at] ezwvcom to email me. )
>
> ------------------------------------------------------------------------
> Name: Blue_Water.jpg
> Blue_Water.jpg Type: JPEG Image (image/jpeg)
> Encoding: base64
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Looks like a blue tarp that's really reflective....
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Wow! Excellent shape. That's by far better than the usual waves, bumps
or ripples used for water.
How could this be animated? I guess 'frequency' won't work here. Or am I
wrong?
Karl
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looked better dark....
Rick
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In article <39570E16.704414BA@t-online.de>, Karl Pelzer
<Kar### [at] t-onlinede> wrote:
> Wow! Excellent shape. That's by far better than the usual waves, bumps
> or ripples used for water.
> How could this be animated? I guess 'frequency' won't work here. Or am I
> wrong?
I think you mean phase...
Anyway, just translating the pattern upward by a clock-dependant amount
should work fine.
--
Christopher James Huff - Personal e-mail: chr### [at] maccom
TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
Personal Web page: http://homepage.mac.com/chrishuff/
TAG Web page: http://tag.povray.org/
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Chris Huff wrote:
>
> I think you mean phase...
> Anyway, just translating the pattern upward by a clock-dependant amount
> should work fine.
I guess that the reality would be gone then. Because you'ld
have to move the different scales of the MF at different speeds
(is this possible?)
Markus
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Chris Huff wrote:
> Anyway, just translating the pattern upward by a clock-dependant amount
> should work fine.
Or upward and to the side at the same time might simulate wind affecting the
waves.
~Samuel
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In article <3957745E.545F243B@student.uni-siegen.de>, Markus Becker
<mar### [at] studentuni-siegende> wrote:
> I guess that the reality would be gone then. Because you'ld
> have to move the different scales of the MF at different speeds
> (is this possible?)
I don't think so...the different frequencies/scales should take care of
it. It isn't an actual simulation of water anyway, so it doesn't really
matter...as long as it looks good. :-)
--
Christopher James Huff - Personal e-mail: chr### [at] maccom
TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
Personal Web page: http://homepage.mac.com/chrishuff/
TAG Web page: http://tag.povray.org/
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Chris Huff wrote:
>
> I think you mean phase...
ahem... yes, that's what I meant. ;-]
> Anyway, just translating the pattern upward by a clock-dependant amount
> should work fine.
I'm not sure how it will look like.
Anyone willing to do a small anim?
Karl
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Moonlit water is what it looks like, has the color of a lake near here at
twilight.
Bob
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Oh come on now. Seriously, this coudn't possibly be a photograph. If it is,
then why do I try so hard to imitate real life for if it actually looks like
this? :-)
Bob
"Glen Berry" <7no### [at] ezwvcom> wrote in message
news:K+dWObSCLvfLZV6bdkU7RvvxdA85@4ax.com...
|
| Just for comparison, I've attached an actual photograph I took of a
| nearby lake.
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Hi Alberto,
great job. IMHO the water surface needs some more fine structure.
Try a superposition of 3 ridgedmfs, where the next is about
1/3 or 1/4 scale of the previous each. Something like
isosurface{function{y - myridgedmf( x, 0, z)} +
0.3 * isosurface{function{y - myridgedmf(3*x, 0, 3*z)} +
0.09 * isosurface{function{y - myridgedmf(9*x, 0, 9*z)}
You may want to try different scaling factors.
I think this would provide for a nice animation as well,
shifting the 3 components with different speed (first one
fastest).
-Hans-
Alberto wrote:
>
> The image was created with a ridgedmf isosurface. Although low in memory
> consumption it took half an hour in a 233 Mhz iMac to render.
> Comments?
>
> ------------------------------------------------------------------------
> [Image]
Post a reply to this message
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Glen Berry <7no### [at] ezwvcom> wrote in message ...
>Just for comparison, I've attached an actual photograph I took of a
>nearby lake.
Is this really a photograph? I've never seen water this blue, even when
someone adds blue jello to it.
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Bob Hughes wrote:
>
> Moonlit water is what it looks like, has the color of a lake near here at
> twilight.
>
> Bob
I agree. I'll post a brighter image.
Alberto.
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Hans-Detlev Fink wrote:
>
> Hi Alberto,
>
> great job. IMHO the water surface needs some more fine structure.
> Try a superposition of 3 ridgedmfs, where the next is about
> 1/3 or 1/4 scale of the previous each. Something like
>
> isosurface{function{y - myridgedmf( x, 0, z)} +
> 0.3 * isosurface{function{y - myridgedmf(3*x, 0, 3*z)} +
> 0.09 * isosurface{function{y - myridgedmf(9*x, 0, 9*z)}
>
> You may want to try different scaling factors.
>
> I think this would provide for a nice animation as well,
> shifting the 3 components with different speed (first one
> fastest).
>
> -Hans-
>
Thank your for your comments. I will give a tray to your suggestions.
About the animation I'm not sure. mac povray outputs animation in quick
time movies and I'm not sure if that is a good format for posting in the
corresponding news group.
Alberto.
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"Alberto" <jac### [at] usbve> wrote in message news:395E66D8.95A68883@usb.ve...
|
| Bob Hughes wrote:
| >
| > Moonlit water is what it looks like, has the color of a lake near here at
twilight.
|
| I agree. I'll post a brighter image.
That was a good thing I was saying, not bad ;-)
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Alberto wrote in message <395679CB.A3293EDE@usb.ve>...
>The image was created with a ridgedmf isosurface. Although low in memory
>consumption it took half an hour in a 233 Mhz iMac to render.
>Comments?
Very nice. What are the settings on the fractal?
Gail
********************************************************************
* gsh### [at] monotixcoza * Reality.dat not found *
* http://www.rucus.ru.ac.za/~gail/ * Attempting to reboot universe *
********************************************************************
* The best way to accelerate Windows NT is at 9.8 m/s^2 *
********************************************************************
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Gail Shaw wrote:
>
> Alberto wrote in message <395679CB.A3293EDE@usb.ve>...
> >The image was created with a ridgedmf isosurface. Although low in memory
> >consumption it took half an hour in a 233 Mhz iMac to render.
> >Comments?
>
> Very nice. What are the settings on the fractal?
>
> Gail
Sorry for responding so late. I will post the details at the irtc.
Alberto.
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