POV-Ray : Newsgroups : povray.binaries.images : Water Bubbles (41.5 KB) Server Time
4 Nov 2024 13:58:32 EST (-0500)
  Water Bubbles (41.5 KB) (Message 1 to 10 of 14)  
Goto Latest 10 Messages Next 4 Messages >>>
From: David Heys
Subject: Water Bubbles (41.5 KB)
Date: 30 Jul 2000 16:59:06
Message: <3984971a@news.povray.org>
With the talk of water bubbles, I thought I'd take a shot at making some.

David


Post a reply to this message


Attachments:
Download 'waterbubbles.jpg' (42 KB)

Preview of image 'waterbubbles.jpg'
waterbubbles.jpg


 

From: redcow
Subject: Re: Water Bubbles (41.5 KB)
Date: 30 Jul 2000 18:59:26
Message: <398363DD.729B6FB5@erols.com>
wow, that's *awesome!* the texturing is great, excellent job! the line where
the floor and wall meet looks a little unnatural and the floor seems a little
dull compared with the rest of the scene, but this is a very cool scene
nontheless

-gene


Post a reply to this message

From: David Heys
Subject: Re: Water Bubbles (41.5 KB)
Date: 30 Jul 2000 19:07:02
Message: <3984b516@news.povray.org>
redcow <ang### [at] erolscom> wrote in message
news:398363DD.729B6FB5@erols.com...
> wow, that's *awesome!* the texturing is great, excellent job! the line
where
> the floor and wall meet looks a little unnatural and the floor seems a
little
> dull compared with the rest of the scene, but this is a very cool scene
> nontheless

<smile> Glad you like it. It's just a simple scene really.. Just slapped
together stuff.. The wall is a cylinder with a quilted normal. The floor is
also quilted, a plane. The water is just a box with marbled scattering
media. The bubbles are spheres and a large blob. It was more an experiment
than a finished product.

David


Post a reply to this message

From: Thomas Lake
Subject: Re: Water Bubbles (41.5 KB)
Date: 30 Jul 2000 19:17:37
Message: <3984B880.628499B3@home.com>
I really like the shape of the largest bubble, on top, but the smaller
bubbles right under it don't look right somehow, they sort of make it look
like a UFO or something.

David Heys wrote:

> With the talk of water bubbles, I thought I'd take a shot at making some.
>
> David
>
>  [Image]

--
Come visit my web site:-) : http://www.geocities.com/~thomaslake/


Post a reply to this message

From: David Heys
Subject: Re: Water Bubbles (41.5 KB)
Date: 30 Jul 2000 19:55:55
Message: <3984c08b@news.povray.org>
Thomas Lake <tla### [at] homecom> wrote in message
news:3984B880.628499B3@home.com...
> I really like the shape of the largest bubble, on top, but the smaller
> bubbles right under it don't look right somehow, they sort of make it look
> like a UFO or something.

You could be right.. I'm just working from intuition and guesswork. I
suppose I should have done a web search for some good still shots of air
bubbles first.

David


Post a reply to this message

From: Chris S 
Subject: Re: Water Bubbles (41.5 KB)
Date: 30 Jul 2000 21:05:45
Message: <3984d0e9@news.povray.org>
David Heys <sou### [at] gcinet> wrote in message
news:3984971a@news.povray.org...
> With the talk of water bubbles, I thought I'd take a shot at making some.
>
> David

Nice positioning but it looks a little too symmetric, and shouldn't it be
somewhat transparent?

-Chris-


Post a reply to this message

From: David Heys
Subject: Re: Water Bubbles (41.5 KB)
Date: 30 Jul 2000 22:48:48
Message: <3984e910@news.povray.org>
> Nice positioning but it looks a little too symmetric, and shouldn't it be
> somewhat transparent?

Actually, the bubbles are all "rgbt 1" with no normal or finish properties.
What gives them their look is the ior of the box with the scattering media,
and making the bubbles non-hollow so the media is not inside them. I figured
they'd be symetrical, simply from the relatively uniform pressures of the
water. Figuring that the only things to make them non-uniform would be
collisions with other objects and bubbles.

David


Post a reply to this message

From: Mike
Subject: Re: Water Bubbles (41.5 KB)
Date: 30 Jul 2000 23:28:08
Message: <3984FF86.4D0CFAF6@aol.com>
The shape is a little too regular, making it look more like a jellyfish.  I
think air bubbles are more concave on the bottom with smaller bubbles
clinging to the bottom edge.  Perhaps making them all blobs and putting some
negative blob components inside would help.  I don't know, just thinking out
loud.

-Mike


Post a reply to this message

From: David Fontaine
Subject: Re: Water Bubbles (41.5 KB)
Date: 31 Jul 2000 16:28:44
Message: <3985DF9D.449AE020@faricy.net>
Kick-ass bubbles man!

--
David Fontaine     <dav### [at] faricynet>     ICQ 55354965
Please visit my website: http://www.faricy.net/~davidf/


Post a reply to this message

From: Chris S 
Subject: Re: Water Bubbles (41.5 KB)
Date: 31 Jul 2000 16:41:31
Message: <3985e47b@news.povray.org>
David Heys <sou### [at] gcinet> wrote in message
news:3984e910@news.povray.org...
> I figured they'd be symetrical, simply from the relatively uniform
pressures of the
> water. Figuring that the only things to make them non-uniform would be
> collisions with other objects and bubbles.

You're probably right...but when is water pressure uniform?  Even in
swimming pools there are slight currents jostling bubbles into odd shapes.
Still, the general shape does look pretty good and lives up to DeWitt's
jellyfish theory.

I know the scene is meant just for test purposes but what really strikes me
is the media.  It looks quite natural and works well.  Do you think you
could e-mail me the source?

-Chris-


Post a reply to this message

Goto Latest 10 Messages Next 4 Messages >>>

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.