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From: Rune
Subject: particle system : fire (121kbu)
Date: 1 Apr 2001 05:23:42
Message: <3ac6f39e@news.povray.org>
Here I've used my particle system to simulate some cheap, fast-rendering
fire using glows. (Unfortunately glows only work on dark backgrounds.)

I'm not quite sure how realistic it is. How would you rate it?

Rune
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Attachments:
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From: Christoph Hormann
Subject: Re: particle system : fire (121kbu)
Date: 1 Apr 2001 05:35:45
Message: <3AC6F671.139741D2@gmx.de>
Rune wrote:
> 
> Here I've used my particle system to simulate some cheap, fast-rendering
> fire using glows. (Unfortunately glows only work on dark backgrounds.)
> 
> I'm not quite sure how realistic it is. How would you rate it?
> 

The motion looks fairly realistic, but the glows don't create realistic
flames, which should have a more stretched shape and a sharper border.  

Have you tried media with a blob pattern for density?

BTW, you can also use negative color in glows on bright background.  Could
make a quite convincing and fast smoke.  

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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From: Bill DeWitt
Subject: Re: particle system : fire (121kbu)
Date: 1 Apr 2001 08:32:13
Message: <3ac71fcd$1@news.povray.org>
"Rune" <run### [at] inamecom> wrote :
>
> I'm not quite sure how realistic it is. How would you rate it?


    Looks like a large fire blurred in the distance.


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From: Rick [Kitty5]
Subject: Re: particle system : fire (121kbu)
Date: 1 Apr 2001 09:12:54
Message: <3ac72956@news.povray.org>
looks like some of the demoscene stuff - dunno if its realistic, very nice
all the same


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From: Tony[B]
Subject: Re: particle system : fire (121kbu)
Date: 1 Apr 2001 10:01:20
Message: <3ac734b0@news.povray.org>
Better than any fire I've ever made. :) I agree with Bill, though. Add some
turbulence to the glows.


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From: Rune
Subject: Re: particle system : fire (121kbu)
Date: 1 Apr 2001 11:00:15
Message: <3ac7427f@news.povray.org>
"Christoph Hormann" wrote:
> The motion looks fairly realistic, but the glows don't
> create realistic flames, which should have a more stretched
> shape and a sharper border.

Ok.

> Have you tried media with a blob pattern for density?

No, but I've been thinking about it. I'll probably try it later.

> BTW, you can also use negative color in glows on bright
> background.  Could make a quite convincing and fast smoke.

Good idea. I will try it later. I think media will do a better job for smoke
too though.

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 March 29)
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From: Rune
Subject: Re: particle system : fire (121kbu)
Date: 1 Apr 2001 11:00:18
Message: <3ac74282@news.povray.org>
"Bill DeWitt" wrote:
>     Looks like a large fire blurred in the distance.

Hmm, I agree.

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 March 29)
/ Also visit http://www.povrayusers.org


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From: Rune
Subject: Re: particle system : fire (121kbu)
Date: 1 Apr 2001 11:00:19
Message: <3ac74283@news.povray.org>
"Rick [Kitty5]" wrote:
> looks like some of the demoscene stuff

What demoscene stuff are you talking about?

> - dunno if its realistic, very nice all the same

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 March 29)
/ Also visit http://www.povrayusers.org


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From: Rune
Subject: Re: particle system : fire (121kbu)
Date: 1 Apr 2001 11:00:20
Message: <3ac74284@news.povray.org>
"Tony[B]" wrote:
> Better than any fire I've ever made. :)

Really? :)

> I agree with Bill, though. Add some turbulence to the glows.

I'll try, but I don't think that will help. Media is the way I guess.

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 March 29)
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From: Rune
Subject: Fire With Turbulence (121kbu)
Date: 1 Apr 2001 18:39:02
Message: <3ac7ae06@news.povray.org>
TonyB suggested that I should add turbulence to the glows to improve the
fire.

Here it is - I think it does improve it! It's a lot slower too though...

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 March 29)
/ Also visit http://www.povrayusers.org


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Attachments:
Download 'fireturb.mpg' (122 KB)

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