Neat.

How many particles are involved here? Does it take very long for pov to parse
this data?

MJL

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This is cool. Someday, I'll write a particle-programm which can
do that... Until then... *sigh*

--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde

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Tim Nikias <tim### [at] gmxde> wrote:
> This is cool. Someday, I'll write a particle-programm which can
> do that... Until then... *sigh*

instead of everybody rolling there own particle systems, how about we club
together and cook up the ultimate be all and end all of pov particle systems
.... just a thought


--
Rick

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"Mark James Lewin" <m_j### [at] yahoocomau> wrote in message
news:3CCE0FF9.E2520518@yahoo.com.au...
> Neat.

Thanks

> How many particles are involved here? Does it take very long for pov to
parse
> this data?

1200 particles... parse time negligible really.. just a second or two.

Andy

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"Rick [Kitty5]" <ric### [at] kitty5com> wrote in message
news:3cce6091$1@news.povray.org...
> Tim Nikias <tim### [at] gmxde> wrote:
> > This is cool. Someday, I'll write a particle-programm which can
> > do that... Until then... *sigh*
>
> instead of everybody rolling there own particle systems, how about we club
> together and cook up the ultimate be all and end all of pov particle
systems
> .... just a thought

And a damn good one at that!

Andy

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> instead of everybody rolling there own particle systems, how about we club
> together and cook up the ultimate be all and end all of pov particle
systems
> .... just a thought

Agree! I'd be willing to cooperate, but I'm not that good in math.. Let me
know if I can help anyway.. Even just the sharing of ideas between more
people would probably be good.. I wonder, maybe SDL is not the final
solution, but a step towards coding in C and expanding POV's native
abilities, starting with Pov4.. It could also be important for us to know
how much is going to change in Pov4; if there are already people considering
this. But anyway, it's not too early to start now.. Rune will soon be
releasing his particle system, and we know it's going to be good..

But is there an easy article on the net, that I should read to understand
more of this stuff?

Regards,
Hugo

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Hi all!
 Tim Nikias:
> This is cool. Someday, I'll write a particle-programm which can
> do that... Until then... *sigh*
Hmm... how do you start? Leap frog? I'm just curious how this can be done.
Best regards,
Florian

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I don't get that with the "leap frog". Some unknown term to me.

How it could be done? Probably with some sort of
n-body-algorithm, with adaptive time-steps, good
approximation for hundreds of particles, springs...

A lot of stuff, so probably not be coded in pure
POV. *sigh*

Florian Pesth wrote:

> Hi all!
>  Tim Nikias:
> > This is cool. Someday, I'll write a particle-programm which can
> > do that... Until then... *sigh*
> Hmm... how do you start? Leap frog? I'm just curious how this can be done.
> Best regards,
> Florian

--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde

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I've got no "easy article" to begin with.

But just think about it. What is there to a particle
program? You need particles, definetely. They move
around, so you'll need to know their positions, keep
track of their speed. Some way of detecting collisions
with other objects (using trace(), probably, or 3D-algorithms
with input from user). You'd probably head for I/O on
a frame by frame basis, so there is a need for Output
and Input from and to disk.

I came up with my version of a particle-system about a
year ago, and its non I/O. Some animations can be found
on my webpage (recently added a new one), but I guess
many people know this already (I mean that I've done
a P.-S., not the animation).

But for mass-particle and such, you can probably find some
PDF files floating in the web, mostly scientific and not
"easy-rating"...

Hugo wrote:

> > instead of everybody rolling there own particle systems, how about we club
> > together and cook up the ultimate be all and end all of pov particle
> systems
> > .... just a thought
>
> Agree! I'd be willing to cooperate, but I'm not that good in math.. Let me
> know if I can help anyway.. Even just the sharing of ideas between more
> people would probably be good.. I wonder, maybe SDL is not the final
> solution, but a step towards coding in C and expanding POV's native
> abilities, starting with Pov4.. It could also be important for us to know
> how much is going to change in Pov4; if there are already people considering
> this. But anyway, it's not too early to start now.. Rune will soon be
> releasing his particle system, and we know it's going to be good..
>
> But is there an easy article on the net, that I should read to understand
> more of this stuff?
>
> Regards,
> Hugo

--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde

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I do like the idea of creating a Particle-Team,
but I also like to do stuff on my own.
It depends on how fast the team is
going to fall apart, and how good we
cooperate.

But we could create something "open-source"
like. I'd be willing to cook up some basic
rules for Macro-Definitions inside the
system (though I should have some help to
make sure that everything is taken care of)
and supply/write some fundamentals.

I'd be happy to host the system and keep
track of an "official" version, e.g. I'll
check additions and look at the algorithms
(as long as they're commented good enough).

If there more than just a bunch (I'd say at least
10), send a reply here and I could go on
and create a page for our OpenSource-PS.

"Rick [Kitty5]" wrote:

> instead of everybody rolling there own particle systems, how about we club
> together and cook up the ultimate be all and end all of pov particle systems
> .... just a thought

--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde

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