 |
|
|
|
|
|
| |
| |
|
|
From: Christoph Hormann
Subject: Re: Flow particles, flow ! (247kbu)
Date: 4 Mar 2001 13:12:51
Message: <3AA285A4.DC75DB05@gmx.de>
|
|
|
| |
| |
|
|
Rune wrote:
>
> The particles can now flow along any surface.
>
> As always, comments are much appreciated!
>
Looks funny, a bit like fishes... :-)
Christoph
--
Christoph Hormann <chr### [at] gmx de>
IsoWood include, radiosity tutorial, TransSkin and other
things on: http://www.schunter.etc.tu-bs.de/~chris/
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
In article <3aa27640@news.povray.org>, "Rune" <run### [at] inamecom>
wrote:
> The particles can now flow along any surface.
They actually look like they are slithering...I wonder what it would
look like if you hooked several into a chain, and had a "head" at one
end attracted to a specific point.
It looks like you used the ground repulsion method, did you? How did you
implement it? A single ray straight down or forward, a special
combination of directions, or randomly scanning the surroundings?
--
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/
<><
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Rick [Kitty5]" wrote:
> i rhink you need many many more smaller particles,
> moving faster :)
Yep, and a faster computer!
While testing I'll have to do with this. :(
Rune
--
\ Include files, tutorials, 3D images, raytracing jokes,
/ The POV Desktop Theme, and The POV-Ray Logo Contest can
\ all be found at http://rsj.mobilixnet.dk (updated January 28)
/ Also visit http://www.povrayusers.org
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Chris Huff" wrote:
> They actually look like they are slithering...
I think that's because I disabled the bouncing in this test. I originally
made one version that had bouncing too, but there seemed to be a bug causing
the particles to not cycle perfectly when bouncing was used, so I made this
version that use flowing only.
> I wonder what it would look like if you hooked several
> into a chain, and had a "head" at one end attracted to
> a specific point.
I'm not sure that could be done using this technique. It would have to be
modified anyway.
> It looks like you used the ground repulsion method, did
> you? How did you implement it? A single ray straight down
> or forward, a special combination of directions, or
> randomly scanning the surroundings?
Nope. It's simpler.
Rune
--
\ Include files, tutorials, 3D images, raytracing jokes,
/ The POV Desktop Theme, and The POV-Ray Logo Contest can
\ all be found at http://rsj.mobilixnet.dk (updated January 28)
/ Also visit http://www.povrayusers.org
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Christoph Hormann" wrote:
> Looks funny, a bit like fishes... :-)
I know, I need many more particles if it is to have any chance of looking
like water...
Rune
--
\ Include files, tutorials, 3D images, raytracing jokes,
/ The POV Desktop Theme, and The POV-Ray Logo Contest can
\ all be found at http://rsj.mobilixnet.dk (updated January 28)
/ Also visit http://www.povrayusers.org
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
In article <3aa292ea$1@news.povray.org>, "Rune"
<run### [at] inamecom> wrote:
> > I wonder what it would look like if you hooked several
> > into a chain, and had a "head" at one end attracted to
> > a specific point.
>
> I'm not sure that could be done using this technique. It would have to be
> modified anyway.
I had assumed it would take some major changes to your algorithm, or
were you talking about the "sliding" effect itself?
> > It looks like you used the ground repulsion method, did
> > you? How did you implement it? A single ray straight down
> > or forward, a special combination of directions, or
> > randomly scanning the surroundings?
>
> Nope. It's simpler.
Hmm...a minimum bounce energy? In other words, particles lose energy
until they go below a certain level?
--
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/
<><
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Chris Huff" wrote:
> "Rune" wrote:
>
> > > I wonder what it would look like if you hooked several
> > > into a chain, and had a "head" at one end attracted to
> > > a specific point.
> >
> > I'm not sure that could be done using this technique. It
> > would have to be modified anyway.
>
> I had assumed it would take some major changes to your
> algorithm, or were you talking about the "sliding" effect
> itself?
With my sliding method the particles find their own ways. They cannot be
attached to specific points.
> Hmm...a minimum bounce energy?
No *that* simple. That would never give the smooth sliding effect you see.
Not without a huge number of calculation frames anyway.
> In other words, particles lose energy until they go
> below a certain level?
That's right, but the interesting part is what happens when they go below
that level. :)
Rune
--
\ Include files, tutorials, 3D images, raytracing jokes,
/ The POV Desktop Theme, and The POV-Ray Logo Contest can
\ all be found at http://rsj.mobilixnet.dk (updated January 28)
/ Also visit http://www.povrayusers.org
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
It looks like one got away (unless it is a reflection). Sorta pops through
the rock for a moment below the rest of the stream.
"Rune" <run### [at] inamecom> wrote in message
news:3aa27640@news.povray.org...
> The particles can now flow along any surface.
>
> As always, comments are much appreciated!
>
> Rune
> --
> \ Include files, tutorials, 3D images, raytracing jokes,
> / The POV Desktop Theme, and The POV-Ray Logo Contest can
> \ all be found at http://rsj.mobilixnet.dk (updated January 28)
> / Also visit http://www.povrayusers.org
>
>
>
Post a reply to this message
|
|
| |
| |
|
|
From: Marc-Hendrik Bremer
Subject: Re: Flow particles, flow ! (247kbu)
Date: 4 Mar 2001 17:59:52
Message: <3aa2c8e8@news.povray.org>
|
|
|
| |
| |
|
|
Spock schrieb in Nachricht <3aa2c78d@news.povray.org>...
>It looks like one got away (unless it is a reflection). Sorta pops through
>the rock for a moment below the rest of the stream.
>
Yeah, right in the middle of the image in frames 4 to 9.
It's cool anyway.
Marc-Hendrik
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
In article <3aa2bc3f@news.povray.org>, "Rune" <run### [at] inamecom>
wrote:
> With my sliding method the particles find their own ways. They cannot be
> attached to specific points.
I wasn't talking about attaching them to points (what good would that
do?), just adding a new force that *attracts* the "head particle" to a
point. The other particles would be attracted to the particle in front
of them, and repel all the others.
> > In other words, particles lose energy until they go
> > below a certain level?
>
> That's right, but the interesting part is what happens when they go below
> that level. :)
And you are going to make me keep guessing?
Do you somehow mess with the velocity so it doesn't bounce, but doesn't
impact on the surface?
Oh, well...I'll just peek at the source...you *are* going to release the
scene file, right? ;-)
--
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/
<><
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
|
|
