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I worked on this image since the first beta of povray 3.5 came out, with a
long wait for a photon bug to be fixed, but I eventually found a workaround.
350 fish, some spherical bubbles, thousands upon thousands of sphere sweeps
for the seaweed, an f_ridged_mf for the normal of the water, and a heckuva
lot of media and surface photons. About 40 hours to render the 1400 x 1050
version, although I set the priority down to do other things during the day.
- Slime
[ http://www.slimeland.com/ ]
[ http://www.slimeland.com/images/ ]
Post a reply to this message
Attachments:
Download 'realwater_800x600.jpg' (61 KB)
Preview of image 'realwater_800x600.jpg'
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Hey nice pict, have a look to the topic of this contest
http://3dstation.babozor.net/concours/concours_link.htm
: "The aquatic world" Plunge us the head under water!
Marc
"Slime" <noo### [at] hotmail com> a écrit dans le message de news:
3cb09186@news.povray.org...
> I worked on this image since the first beta of povray 3.5 came out, with a
> long wait for a photon bug to be fixed, but I eventually found a
workaround.
>
> 350 fish, some spherical bubbles, thousands upon thousands of sphere
sweeps
> for the seaweed, an f_ridged_mf for the normal of the water, and a heckuva
> lot of media and surface photons. About 40 hours to render the 1400 x 1050
> version, although I set the priority down to do other things during the
day.
>
> - Slime
> [ http://www.slimeland.com/ ]
> [ http://www.slimeland.com/images/ ]
>
>
>
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Really great look for a start (ehm, not a start).. :o) The water surface and
the scattered light is perfect! Even the rendertime doesn't look too bad,
considering that you used a big resolution.. I just saw some real scenes in
TV and this is very close! Except the bubbles - those close to the camera
are very strange, I'd say not transparant enough.. The fishes are too few,
and I think there's a problem with the scale of them vs. the bubbles.. I
know some fishes are small of course, but my mind suggests - for the sake of
a great picture - they should be a "more heavy ingredient" in this picture
..and perhaps more bubbles.
That said, I'm still very impressed by the water and the green stuff !
Regards,
Hugo
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"Slime" <noo### [at] hotmailcom> wrote ;
>
> 350 fish, some spherical bubbles,
Looks great except for the bubbles, bubbles over a 1/4 inch or so become
jellyfish shaped.
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"Bill DeWitt" <bde### [at] cflrrcom> wrote in message
news:3cb0bb67@news.povray.org...
>
> "Slime" <noo### [at] hotmailcom> wrote ;
> >
> > 350 fish, some spherical bubbles,
>
> Looks great except for the bubbles, bubbles over a 1/4 inch or so
become
> jellyfish shaped.
Of course, those -could- be really small bubbles...
Post a reply to this message
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Great work as always slime! Only thing that I think detracts from the pic is
the bubbles. They look too hard, almost like they're metallic spheres
instead of bubbles.
Corey
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> > Looks great except for the bubbles, bubbles over a 1/4 inch or so
> become
> > jellyfish shaped.
>
>
> Of course, those -could- be really small bubbles...
Yeah... I know. I think the largest of them are supposed to be about one
inch in diameter, maybe a little smaller. But I liked the spherical-ness of
them nonetheless =)
- Slime
[ http://www.slimeland.com/ ]
[ http://www.slimeland.com/images/ ]
Post a reply to this message
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From: Fernando Gonzalez del Cueto
Subject: Re: The magic of media photons
Date: 7 Apr 2002 21:10:12
Message: <3cb0edf4@news.povray.org>
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Great scene!
I was going to suggest you to try using meshes for the seaweed instead of
sphere sweeps, as I believe it should speed up the render time
substantially. Last time I used sphere sweeps I was surprised of how slow
they render.
Also, I don't like very much the spherical bubbles. As others have noted,
bubbles going upward in water tend to have a "jellyfish" shape.
Other than that, it is a very well done scene. Congratulations,
Fernando.
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"Slime" <noo### [at] hotmailcom> wrote...
> I worked on this image since the first beta of povray 3.5 came out, with a
> long wait for a photon bug to be fixed, but I eventually found a
workaround.
FYI, I think the bug you're talking about is finally fixed for the next
beta. :-)
-Nathan
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> FYI, I think the bug you're talking about is finally fixed for the next
> beta. :-)
Oh good =)
If it's the "photons make the scene too bright" bug, then that's the one,
but I found a workaround by increasing the gap between the surface of the
water and the actual media.
BTW, when is range_divider going to be documented? It's just sitting there
in the documentation, teasing me... it probably does some silly useless
thing, but I keep wondering if it holds the solution whenever I come across
photon problems =)
- Slime
[ http://www.slimeland.com/ ]
[ http://www.slimeland.com/images/ ]
Post a reply to this message
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"Slime" <noo### [at] hotmailcom> a écrit dans le message de news:
3cb0c578$1@news.povray.org...
>
> Yeah... I know. I think the largest of them are supposed to be about one
> inch in diameter, maybe a little smaller. But I liked the spherical-ness
of
> them nonetheless =)
>
Though big bubbles are not at all spherical in real world because they drift
up swiftly and get kind of jellyfish shaped :-)
Marc
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> Though big bubbles are not at all spherical in real world because they
drift
> up swiftly and get kind of jellyfish shaped :-)
Well... *my* bubbles are *magical* ones. =)
- Slime
[ http://www.slimeland.com/ ]
[ http://www.slimeland.com/images/ ]
Post a reply to this message
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WOW. I like. Looks real enough to me apart from the bubbles as others
have commented. I'd like 'em more silvery with less contrast. What
seaweed? Can't see any but guess a gamma tweak (my monitor is still
cold) this end will show it.
Alf
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>What
> seaweed?
It sorta got lost in the jpeg compression, but most of it is in the lower
left...
- Slime
[ http://www.slimeland.com/ ]
[ http://www.slimeland.com/images/ ]
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Great pic. The formation of the fish seems very natural and fluid. I'm not
crazy about the bubbles, but that horse has been kicked enough times.
You could probably use a faster method for the seaweed, as it is not very
visible. You could try a mesh or my cheap sweep macro.
-Shay
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"Slime" <noo### [at] hotmailcom> a écrit dans le message de news:
3cb19433$1@news.povray.org...
> > Though big bubbles are not at all spherical in real world because they
> drift
> > up swiftly and get kind of jellyfish shaped :-)
>
> Well... *my* bubbles are *magical* ones. =)
Indeed it's Your image and Your choices :-), realism is definitly NOT the
only target we have to aim to.
Marc
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> Great pic. The formation of the fish seems very natural and fluid. I'm not
> crazy about the bubbles, but that horse has been kicked enough times.
> You could probably use a faster method for the seaweed, as it is not very
> visible. You could try a mesh or my cheap sweep macro.
Mmm... the fish are all swimming around a certain point in a circle, with
their vertical tilt defined as a sine function of the angle that they're in
in that circle. I realized too late that the insides of the transparent
parts of the fish have an ior of 1, making some of the fish refractive. I'll
fix that if I do another version.
I'm not really too worried about the speed of the seaweed; it's really
unnoticeable given all the media and photons. I doubt it makes any more than
a half-hour difference out of the 40 or so hour render.
If I do another version, I'll consider fixing the bubbles for everyone =)
- Slime
[ http://www.slimeland.com/ ]
[ http://www.slimeland.com/images/ ]
Post a reply to this message
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