POV-Ray : Newsgroups : povray.unofficial.patches : Suggestion: particles Server Time
2 Sep 2024 00:14:16 EDT (-0400)
  Suggestion: particles (Message 14 to 23 of 23)  
<<< Previous 10 Messages Goto Initial 10 Messages
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


Post a reply to this message

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/

<><


Post a reply to this message

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


Post a reply to this message

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


Post a reply to this message

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/

<><


Post a reply to this message

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


Post a reply to this message

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/

<><


Post a reply to this message

From: Greg M  Johnson
Subject: Re: Suggestion: particles
Date: 21 Oct 2000 16:11:07
Message: <39f1f85b@news.povray.org>
Tell me which settings to change on my netscape browser to remove the bleeding
edge features that cause you difficulty and consider it done.....

Mark Wagner wrote:

> 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


Post a reply to this message

From: Mark Wagner
Subject: Re: Suggestion: particles
Date: 22 Oct 2000 01:00:34
Message: <39f27472$1@news.povray.org>
Greg M. Johnson <"gregj;-"@aol.c;-om> wrote in message
<39f1f85b@news.povray.org>...
>Tell me which settings to change on my netscape browser to remove the
bleeding
>edge features that cause you difficulty and consider it done.....


I said it's an unknown reason.  I'm guessing it's either this header:
X-Accept-Language: en,zh-TW,zh,zh-CN
or this one:
Content-Type: text/plain; charset=x-user-defined

I don't know how you would go about changing either one.

Mark


Post a reply to this message

From: Pabs
Subject: Re: Suggestion: particles
Date: 22 Oct 2000 21:30:26
Message: <39F394FF.3A1A3E53@hotmail.com>
Chris Huff 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?

Yep
--
Bye
Pabs


Post a reply to this message

<<< Previous 10 Messages Goto Initial 10 Messages

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