Awhile back,  I asked everyone here if they had accomplished "rolling"
ground fog.
(the kind you see in the jungle in the old world war 2 movies)
I am assuming this would HAVE to be accomplished using media effects.
I have tried myself to duplicate this effect,  but with sorry results.
So,  does anyone know how this "effect" could be accomplished ?


                                         Thanks,

                                          Johnny

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I've done this using a particle system and media (this was in MAX, but the
same should apply to POV-Ray).  The way I did it was to create a particle
emitter that released only a few invisible particles every frame.  Then I
binded a particle based media system to it and set the fractal turbulence
very low.  Then all that was necessary was to animate it.  (the system for
the particle media I used was called FreePyro, a free version of
PyroCluster).

Unfortunately I've lost the original file :(  Otherwise I would have posted
it here for you.

Maybe you could use that particle system that was talked about here a while
ago... and use the particle positions for spheres of media (this is
essentially what FreePyro does)...

--
Lance.


---
For the latest 3D Studio MAX plug-ins, images and much more, go to:
The Zone - http://come.to/the.zone
For a totally different experience, visit my Chroma Key Website:
Colorblind - http://www.fortunecity.com/skyscraper/parallax/359/colorblind

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I have an irrelevant question.  How does a 16 year old afford Max?  I
can't even afford the student version.

Lance Birch wrote:
> 
> I've done this using a particle system and media (this was in MAX, but the
> same should apply to POV-Ray).  The way I did it was to create a particle
> emitter that released only a few invisible particles every frame.  Then I
> binded a particle based media system to it and set the fractal turbulence
> very low.  Then all that was necessary was to animate it.  (the system for
> the particle media I used was called FreePyro, a free version of
> PyroCluster).
> 
> Unfortunately I've lost the original file :(  Otherwise I would have posted
> it here for you.
> 
> Maybe you could use that particle system that was talked about here a while
> ago... and use the particle positions for spheres of media (this is
> essentially what FreePyro does)...
> 
> --
> Lance.
> 
> ---
> For the latest 3D Studio MAX plug-ins, images and much more, go to:
> The Zone - http://come.to/the.zone
> For a totally different experience, visit my Chroma Key Website:
> Colorblind - http://www.fortunecity.com/skyscraper/parallax/359/colorblind

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animated fog or still?

--
Tom Melly
tom### [at] aolcom
http://members.aol.com/tomandlu


Johnny Smith <joh### [at] telebotnet> wrote in message
news:372### [at] telebotnet...
>
>
> Awhile back,  I asked everyone here if they had accomplished "rolling"
> ground fog.

Post a reply to this message

It was actually a present to me :)

My Mum and Dad got really extravagant once and said that I could have
whatever I wanted as a present...  he he he, what can I say, I took
advantage of the situation :)  he he he

--
Lance.


---
For the latest 3D Studio MAX plug-ins, images and much more, go to:
The Zone - http://come.to/the.zone
For a totally different experience, visit my Chroma Key Website:
Colorblind - http://www.fortunecity.com/skyscraper/parallax/359/colorblind

portelli wrote...
>I have an irrelevant question.  How does a 16 year old afford Max?  I
>can't even afford the student version.

Post a reply to this message

I wish.

Lance Birch wrote:
> 
> It was actually a present to me :)
> 
> My Mum and Dad got really extravagant once and said that I could have
> whatever I wanted as a present...  he he he, what can I say, I took
> advantage of the situation :)  he he he
> 
> --
> Lance.
> 
> ---
> For the latest 3D Studio MAX plug-ins, images and much more, go to:
> The Zone - http://come.to/the.zone
> For a totally different experience, visit my Chroma Key Website:
> Colorblind - http://www.fortunecity.com/skyscraper/parallax/359/colorblind
> 
> portelli wrote...
> >I have an irrelevant question.  How does a 16 year old afford Max?  I
> >can't even afford the student version.

Post a reply to this message

Tom Melly wrote:

> animated fog or still?
>
> --
> Tom Melly
> tom### [at] aolcom
> http://members.aol.com/tomandlu

        Still fog... I used the word "rolling" because I didn't know how
else to describe it.

Post a reply to this message

IT'S TRUE!!!

--
Lance.


---
For the latest 3D Studio MAX plug-ins, images and much more, go to:
The Zone - http://come.to/the.zone
For a totally different experience, visit my Chroma Key Website:
Colorblind - http://www.fortunecity.com/skyscraper/parallax/359/colorblind
portelli wrote in message <37252FBB.866CE0F3@pilot.msu.edu>...
>I wish.
>
>Lance Birch wrote:
>>
>> It was actually a present to me :)

Post a reply to this message

Oh, well mine was animated... you can do it anyway... it's just an
alteration of the still... (particle rotation and spliting, media phasing...
that kind of stuff)

--
Lance.


---
For the latest 3D Studio MAX plug-ins, images and much more, go to:
The Zone - http://come.to/the.zone
For a totally different experience, visit my Chroma Key Website:
Colorblind - http://www.fortunecity.com/skyscraper/parallax/359/colorblind
Johnny Smith wrote in message <37254C6D.6C13C6DE@telebot.net>...
>Tom Melly wrote:
>
>> animated fog or still?
>>
>> --
>> Tom Melly
>> tom### [at] aolcom
>> http://members.aol.com/tomandlu
>
>        Still fog... I used the word "rolling" because I didn't know how
>else to describe it.
>

Post a reply to this message

Lance Birch wrote:
> 
> Oh, well mine was animated... you can do it anyway... it's just an
> alteration of the still... (particle rotation and spliting, media phasing...
> that kind of stuff)
> 
> --
> Lance.

  Please show me an example. I would be interested to see how you would
solve this particulr modelling task in Pov-Ray. To me it sounds like a
2 week project but you seem to have it all figured out and I would love
to learn by your experienced insight on the subject.

-- 
Ken Tyler

mailto://tylereng@pacbell.net

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OK, I'll have to recreate it since as I said, I lost the file :-(       (I
THOUGHT I had it archived... but obviously not...)

I'll do you a little demo... and also if I get time I'll do a dust demo
(like and object disturbing some dusty air)

--
Lance.


---
For the latest 3D Studio MAX plug-ins, images and much more, go to:
The Zone - http://come.to/the.zone
For a totally different experience, visit my Chroma Key Website:
Colorblind - http://www.fortunecity.com/skyscraper/parallax/359/colorblind

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OK Ken, as was wanted, I have done a little demo for you.  It's not very
good, I only spent 30 minutes on it (and I wasn't willing to rerender,
because I had a Math C assignment to do!!!).

Anyway, you can find it at:

http://members.xoom.com/lancebirch/drifting.mpg

It uses a simple emitting particle system.  Each particle generates a
"media" cloud around it.  I'm not really happy with the flow of it (it looks
almost bouncy...) and it's too thick, but anyway, have a look and tell me
what you think.  If you want any more info on it I'll be happy to provide it
:)

BTW, when I get the time, I'll do some kind of object falling into a dusty
area so you can see my dust flow method...

--
Lance.


---
For the latest 3D Studio MAX plug-ins, images and much more, go to:
The Zone - http://come.to/the.zone
For a totally different experience, visit my Chroma Key Website:
Colorblind - http://listen.to/colorblind

Post a reply to this message

Wow that's really good.

>If you want any more info on it I'll be happy to provide it

If you don't mind I'd like to see how this was done too.

-- 
...coffee?...yes please! extra sugar,extra cream...Thank you.

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Well, as I stated earlier it's done with MAX but I'll give you a run down of
how it was achieved...

First I made a simple particle emitter and made the particle size 0 (so it
wouldn't show up) and set the spray speeds pretty low and variance (the
degree of randomness in the spray direction) to about 10%.  The emitter was
quite thin and very wide.

Next I placed an deflection plate under the emitter and set the bounciness
pretty low so when they hit it they wouldn't go all over the place :)

I then added a gravity spacewarp in the scene and set it's gravity to half
that of normal so that the mist would drift rather than fall.  Then I bound
the gravity and deflector to the emitter so that they would affect it.

Next I attached the main part of it, the thing that makes it actually look
like mist!  There is a very cool plugin for MAX that is totally free.  It's
called FreePyro, named after it's bigger brother PyroCluster.  Basically
what it does is get all the information from the particle system that it
can... what it does is builds "media" spheres around each particle and bases
the properties of the cloud on a whole number of difference parameters and
also the particles information such as rotation, age etc.

I simply added the system to the particle system, and then altered a few of
the settings to make it appear a little softer.  Then I just let it render.

:)

--
Lance.


---
For the latest 3D Studio MAX plug-ins, images and much more, go to:
The Zone - http://come.to/the.zone
For a totally different experience, visit my Chroma Key Website:
Colorblind - http://listen.to/colorblind

Phil Clute wrote in message <372BBD47.B05D167E@tiac.net>...
>Wow that's really good.
>
>>If you want any more info on it I'll be happy to provide it
>
>If you don't mind I'd like to see how this was done too.
>
>--
>...coffee?...yes please! extra sugar,extra cream...Thank you.

Post a reply to this message

This sounds (and looks) like it could be done with a randomized array of
blobs which have a halo or fog (media)


Lance Birch <lan### [at] usanet> wrote in message
news:372beb14.0@news.povray.org...
> Well, as I stated earlier it's done with MAX but I'll give you a run down
of
> how it was achieved...
>
> First I made a simple particle emitter and made the particle size 0 (so it
> wouldn't show up) and set the spray speeds pretty low and variance (the
> degree of randomness in the spray direction) to about 10%.  The emitter
was
> quite thin and very wide.
>
> Next I placed an deflection plate under the emitter and set the bounciness
> pretty low so when they hit it they wouldn't go all over the place :)
>
> I then added a gravity spacewarp in the scene and set it's gravity to half
> that of normal so that the mist would drift rather than fall.  Then I
bound
> the gravity and deflector to the emitter so that they would affect it.
>
> Next I attached the main part of it, the thing that makes it actually look
> like mist!  There is a very cool plugin for MAX that is totally free.
It's
> called FreePyro, named after it's bigger brother PyroCluster.  Basically
> what it does is get all the information from the particle system that it
> can... what it does is builds "media" spheres around each particle and
bases
> the properties of the cloud on a whole number of difference parameters and
> also the particles information such as rotation, age etc.
>
> I simply added the system to the particle system, and then altered a few
of
> the settings to make it appear a little softer.  Then I just let it
render.
>
> :)
>
> --
> Lance.
>
>
> ---
> For the latest 3D Studio MAX plug-ins, images and much more, go to:
> The Zone - http://come.to/the.zone
> For a totally different experience, visit my Chroma Key Website:
> Colorblind - http://listen.to/colorblind
>
> Phil Clute wrote in message <372BBD47.B05D167E@tiac.net>...
> >Wow that's really good.
> >
> >>If you want any more info on it I'll be happy to provide it
> >
> >If you don't mind I'd like to see how this was done too.
> >
> >--
> >...coffee?...yes please! extra sugar,extra cream...Thank you.
>
>

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As I promised, I'd said that I would give you another example of FreePyro
particle media systems... So, here it is, some nifty flame fire stuff I made
last night... :-)

http://members.xoom.com/lancebirch/fire.mpg (557 Kb)

--
Lance.


---
For the latest 3D Studio MAX plug-ins, images and much more, go to:
The Zone - http://come.to/the.zone
For a totally different experience, visit my Chroma Key Website:
Colorblind - http://listen.to/colorblind

Phil Clute wrote in message <372BBD47.B05D167E@tiac.net>...
>Wow that's really good.
>
>>If you want any more info on it I'll be happy to provide it
>
>If you don't mind I'd like to see how this was done too.

Post a reply to this message