POV-Ray : Newsgroups : povray.unofficial.patches : Suggestion: particles Server Time
2 Sep 2024 00:16:03 EDT (-0400)
  Suggestion: particles (Message 11 to 20 of 23)  
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From: Chris Huff
Subject: Re: Suggestion: particles
Date: 18 Oct 2000 18:32:08
Message: <chrishuff-5AE492.17345318102000@news.povray.org>
In article <39EE2019.DC790D60@my-dejanews.com>, 
gre### [at] my-dejanewscom wrote:

> I hope that you gentlemen realize that I don't *actually* suggest 
> that say Win95 is really better than Linux or that you should 
> *actually* install Netscape if your it's not the best for your 
> current business and hobby use. My use of "archaic" was intentionally 
> ironic.
> 
> I   *am* suggesting that asking someone to run out and get divx or 
> mpeg-29b or a more gif-friendly viewer  just for *your* anim is like 
> asking someone to get MSIE.

I kind of guessed that after reading your message a second time...which 
is why I posted a bit at the bottom about the difficulties in choosing a 
standard video format.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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From: Pabs
Subject: Re: Suggestion: particles
Date: 18 Oct 2000 21:36:12
Message: <39EE4FC5.D8FACCA5@hotmail.com>
"Greg M. Johnson" wrote:

> Some people might have as severe limitations on these viewers in their
> workplace (or income bracket or hard disk space)  as others might in their
> newsgroup readers!

Or stupid sysadmins preventing us from installing new codecs
-
Bye
Pabs


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From: Pabs
Subject: Re: Suggestion: particles
Date: 18 Oct 2000 21:38:36
Message: <39EE5054.E0F94FC1@hotmail.com>
Also Chis could we have a system whereby you can specify a certain number of
particles to be created at the start of the simulation in certain positions?

--
Bye
Pabs


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From: Mark Wagner
Subject: Re: Suggestion: particles
Date: 19 Oct 2000 00:31:39
Message: <39ee792b@news.povray.org>
Greg M. Johnson <"gregj;-"@aol.c;-om> wrote in message
>Shouldn't we simply tell those with the archaic readers simply to upgrade
to
>Win2000 and Netscape or MSIE? That is in essence what we say when someone
>cannot read a bleeding edge video format.


And while we are throwing mud around, for unknown reasons, messages from you
cause Outlook Express to display all future messages in extra-large bold
face non-monospaced type, despite the fact that I have it set to use
10-point Courier for displaying everything.

Mark


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From: Chris Huff
Subject: Re: Suggestion: particles
Date: 19 Oct 2000 07:26:20
Message: <chrishuff-2206FE.06290619102000@news.povray.org>
In article <39EE5054.E0F94FC1@hotmail.com>, Pabs <pab### [at] hotmailcom> 
wrote:

> Also Chis could we have a system whereby you can specify a certain 
> number of particles to be created at the start of the simulation in 
> certain positions?

I have been thinking of something like this...maybe add_particle() and 
delete_particle() functions which can be called for any declared 
particle_system object, or maybe just a way to specify a set of 
particles to start with.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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From: Bob H 
Subject: Re: Suggestion: particles
Date: 19 Oct 2000 12:14:52
Message: <39ef1dfc$1@news.povray.org>
"Mark Wagner" <mar### [at] gtenet> wrote in message
news:39ee792b@news.povray.org...
> Greg M. Johnson <"gregj;-"@aol.c;-om> wrote in message
> >Shouldn't we simply tell those with the archaic readers simply to upgrade to
> >Win2000 and Netscape or MSIE? That is in essence what we say when someone
> >cannot read a bleeding edge video format.
>
> And while we are throwing mud around, for unknown reasons, messages from you
> cause Outlook Express to display all future messages in extra-large bold
> face non-monospaced type, despite the fact that I have it set to use
> 10-point Courier for displaying everything.

You need to upgrade <smirk> to OE 5.5 because it seems that doesn't happen for
me.
Apparently Greg has a user defined font.

What's this about particles?  j/k

Bob


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From: Pabs
Subject: Re: Suggestion: particles
Date: 19 Oct 2000 20:26:45
Message: <39EF90FB.FDAD0263@hotmail.com>
Chris Huff wrote:

> In article <39EE5054.E0F94FC1@hotmail.com>, Pabs <pab### [at] hotmailcom>
> wrote:
>
> > Also Chis could we have a system whereby you can specify a certain
> > number of particles to be created at the start of the simulation in
> > certain positions?
>
> I have been thinking of something like this...maybe add_particle() and
> delete_particle() functions which can be called for any declared
> particle_system object, or maybe just a way to specify a set of
> particles to start with.

The add & delete functions would be more flexible or perhaps the spline
thing could do this?



--
Bye
Pabs

http://zip.to/pabs3 -> http://www.crosswinds.net/~pabs3


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From: Chris Huff
Subject: Re: Suggestion: particles
Date: 19 Oct 2000 21:03:11
Message: <chrishuff-83AD8F.20055819102000@news.povray.org>
In article <39EF90FB.FDAD0263@hotmail.com>, Pabs <pab### [at] hotmailcom> 
wrote:

> The add & delete functions would be more flexible

But sometimes harder to use, maybe...


> or perhaps the spline thing could do this?

I don't understand what you have in mind...could you explain more?

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

<><


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From: Pabs
Subject: Re: Suggestion: particles
Date: 19 Oct 2000 23:23:35
Message: <39EFBB8D.F37E196B@hotmail.com>
Chris Huff wrote:

> > or perhaps the spline thing could do this?
> I don't understand what you have in mind...could you explain more?

I'm not really sure myself.
but perhaps as well as emmitters you could have volumes (defined by
different objects) where particles appear randomly with a spline
specifying the amount of particles created at each timestep.  Also you
could integrate a probabilty pattern into this -
while nump <= maxp
    1 Generate a random position inside the volume = pos
    2 Find the probability that a particle will be created at pos (from
the pattern) = p
    3 If a random number (0...1) <= p then create the particle
    4 If the user wants to have maxp particles & not less do nump++ only
when particles are created
end
--
Bye
Pabs


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From: Chris Huff
Subject: Re: Suggestion: particles
Date: 20 Oct 2000 06:56:07
Message: <chrishuff-173057.05585420102000@news.povray.org>
In article <39EFBB8D.F37E196B@hotmail.com>, Pabs <pab### [at] hotmailcom> 
wrote:

> I'm not really sure myself.
> but perhaps as well as emmitters you could have volumes (defined by
> different objects) where particles appear randomly with a spline
> specifying the amount of particles created at each timestep.  Also you
> could integrate a probabilty pattern into this -

Oh, like an object emitter but with control of the probability that a 
particle will land each point, using a pattern and a spline as a kind of 
float_map?

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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