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So, here is a funky example of the already discussed
wind-turbulence-algorithm.
There are several effects to be seen:
1. The Particles grow in size
2. They are spread a bit uneven using the turbulenced wind
No Gravity, or own movement, affects the path,
its all wind-driven.
There are 100 particles, parsing per frame
was 2.5 seconds, tracing per frame 7 minutes
and 38 seconds.
All in all, the 50 images needed 6 hours and 12
minutes to complete on my 1.4 GHZ-512MBRAM-Win98
system.
Using scattering media requires patience...
Comments?
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
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Attachments:
Download 'smoke3.mpg' (55 KB)
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Looks like tear gas to me!
--
Apache
http://geitenkaas.dns2go.com/experiments/
apa### [at] yahoo com
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Awesome! Is ths smoke able to interact with other objects too? If there were
a wall in the way, for example?
/ Martin
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It can interact with a wall, but only to a certain degree.
You can actually set up a bounding box around the
particles, and particles will stay in that area (or, if
desired, rebounce physically correct and
error-proof, as there is no timestepping or frame-by-
frame calculation: thus the long parsing times).
But that's about it, sadly. I'm not that experienced yet
as to implement better physics, and I also don't have
the knowledge required for the physics.
But someday...
And, by the way, thanks for your "awesome"! ;-)
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
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> Looks like tear gas to me!
Now we know one of the rebels among us...
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Post a reply to this message
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This smoke is incredible. 'Nuff said!
-Law
Tim Nikias wrote:
> So, here is a funky example of the already discussed
> wind-turbulence-algorithm.
>
> There are several effects to be seen:
> 1. The Particles grow in size
> 2. They are spread a bit uneven using the turbulenced wind
>
> No Gravity, or own movement, affects the path,
> its all wind-driven.
>
> There are 100 particles, parsing per frame
> was 2.5 seconds, tracing per frame 7 minutes
> and 38 seconds.
> All in all, the 50 images needed 6 hours and 12
> minutes to complete on my 1.4 GHZ-512MBRAM-Win98
> system.
>
> Using scattering media requires patience...
>
> Comments?
>
> --
> Tim Nikias
> Homepage: http://www.digitaltwilight.de/no_lights/index.html
>
> ------------------------------------------------------------------------
> Name: smoke3.mpg
> smoke3.mpg Type: Wmplayer File (video/x-mpeg)
> Encoding: base64
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On Thu, 07 Mar 2002 06:27:03 +0100, Tim Nikias <tim### [at] gmxde>
wrote:
>So, here is a funky example of the already discussed
>wind-turbulence-algorithm.
Magnificent! I just watched "Evolution" and asked myself how well one
could replicate a falling meteor smoke trail in POV. Obviously, quiet
well :)
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG e-mail : pet### [at] tagpovrayorg
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From: Tim Nikias
Subject: Re: Wind Algorithm Example [MPEG, 60kb]
Date: 7 Mar 2002 14:49:49
Message: <3C87C477.F3D3B2B@gmx.de>
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Thanks!
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
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Wowa! I'm being compared with a movie-effect
(a good one, by the way, really liked it)...
Thanks very much!
I actually thought about enhancing the entire scene
and using it as an example for the particle-system.
Looks like I hit a good point there...
>
> Magnificent! I just watched "Evolution" and asked myself how well one
> could replicate a falling meteor smoke trail in POV. Obviously, quiet
> well :)
--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
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Tim Nikias wrote:
> All in all, the 50 images needed 6 hours and 12
> minutes to complete on my 1.4 GHZ-512MBRAM-Win98
> system.
But it was worth it! The media smoke looks very nice. It would make an excellent demo
scene.
MJL
--
prism{0,.1,30#local I=1;#while(I<30)#local B=asc(substr(// Mark James Lewin
"#K?U_u`V[RG>3<9DGPL.0EObkcPF'",I,1))-33;<div(B,10)-4mod(B,10)+5*div(I,21)-
6>#local I=I+1;#end,-4pigment{rgb 9}rotate-x*90translate 15*z}//POV-Ray 3.5
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