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"Christoph Hormann" wrote:
> That looks really nice
Thanks!
> i wonder how much physics there are involved, what
> parameters you can influence.
Not many physics. Practically only gravity (which can also simulate wind).
There'll be more though if I implement collision detection.
Which parameters would you like to be able to control?
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
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Rune wrote:
>
> Not many physics. Practically only gravity (which can also simulate wind).
>
> There'll be more though if I implement collision detection.
>
> Which parameters would you like to be able to control?
>
It would be good to influence viscosity and surface tension of the liquid
which is the main factor for the size of the particles and of course for
their behaviour when colliding.
I still have not tried Chris Huff's particle system patch, but i think it
offers some things of that kind.
Christoph
--
Christoph Hormann <chr### [at] gmx de>
IsoWood include, radiosity tutorial, TransSkin and other
things on: http://www.schunter.etc.tu-bs.de/~chris/
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Rune said :
>> Hope the small file sizes of the animations justify my frequent postings.
----------------------------------------------------------------------------
-----------
I can't speak for anyone else, but, as far as I'm concerned, you could post
three or four of those every day. :-) I like them a lot!
Setep
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"Christoph Hormann" wrote:
>
> Rune wrote:
> > Which parameters would you like to be able to control?
>
> It would be good to influence viscosity and surface tension
> of the liquid which is the main factor for the size of the
> particles and of course for their behaviour when colliding.
Sorry, but that's way beyond the scopes of what I'm doing.
I'll maybe do some very crude collision detection with objects, but no
interaction at all between the individual particles.
> I still have not tried Chris Huff's particle system patch,
> but i think it offers some things of that kind.
Well, there's a big difference between an include file and a patch. And I
don't intent to duplicate his work anyway.
Features such as surface tension are pretty much only relevant when
simulating water. But I don't intent to specialise my particle system in a
specific direction. I intent to make it simple and general and to make it
able to simulate many different things.
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
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"Setepenaset" wrote:
> I can't speak for anyone else, but, as far as I'm concerned,
> you could post three or four of those every day. :-)
> I like them a lot!
Thank you! :)
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
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Rune wrote:
>
> Sorry, but that's way beyond the scopes of what I'm doing.
> I'll maybe do some very crude collision detection with objects, but no
> interaction at all between the individual particles.
> [...]
>
> Well, there's a big difference between an include file and a patch. And I
> don't intent to duplicate his work anyway.
>
> Features such as surface tension are pretty much only relevant when
> simulating water. But I don't intent to specialise my particle system in a
> specific direction. I intent to make it simple and general and to make it
> able to simulate many different things.
>
One could generalize it to inter particle forces, but that would of
course involve quite a lot of calculations. It's interesting how your
'Wild Hose' samples look quite realistic although they don't involve such
calculations.
BTW, the new anim looks good, i tried it in cycle mode although it's
probably not really cyclic in fact. Have you tried it without the
particles disappearing on the ground?
Christoph
--
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other
things on: http://www.schunter.etc.tu-bs.de/~chris/
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"Christoph Hormann" wrote:
> One could generalize it to inter particle forces, but
> that would of course involve quite a lot of calculations.
Yes, I think it would be way too slow...
> BTW, the new anim looks good, i tried it in cycle mode
> although it's probably not really cyclic in fact.
It *is* cyclic.
> Have you tried it without the particles disappearing on
> the ground?
My system gives each particle a "particle-life". That means that each
particle will "die" a certain amount of time after it is created. I think
that is quite common in particle systems, at least Chris Colefax's Spray inc
uses it too.
Anyway, as a result of the particle-life the particles have to disappear at
some point, but I could increase the particle-life value to make them live a
little longer. I could also shrink the particles during their life-time to
make the disappearing more subtle.
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
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Hah, reminds me of carnivals (not that I've ever been to them, but I've seen
'em on TV).
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In article <3a9006d5$1@news.povray.org>, Rune says...
> "Sander" wrote:
> I used mpeg1 I think, but not with the standard bitrate or resolution.
>
> > When will there be a nice and useful MP for w2k??
>
> That I don't know...
>
> Rune
OK I could have expected to get the same answer you gave concerning your
'glitter' mpg: what I meant is what do _you_ use as an encoder (CMPEG?)
and what do _you_ use to succesfully see the animations??
--
Regards, Sander
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"Tony[B]" wrote:
> Hah, reminds me of carnivals (not that I've ever been to
> them, but I've seen 'em on TV).
Why does it remind you of carnivals?
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
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