Fluid Effect: Magic smoke

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Old 09 September 2003   #1
Question Fluid Effect: Magic smoke

Hi,

I was wondering if anyone could help me with this effect I'm trying to make. I want to recreate a "puff" of smoke like a magician would before he makes the something appear.

I've been trying to tweak the puffball effect that comes with maya. But the Smoke always looks too abrasive.
I would need a softer result.

Any ideas?
 
Old 09 September 2003   #2
if you need really soft smoke i would not even go for fluid effects at all..
fluids really only pay of for thick and heavy smoke or somethink like cigarette smoke-movement.

in your case i would go for the fastest way: hardware particles.

make the particle size 1-2, create a lot of them, use multi point.

now create your particles where you need them with e.g. surface emission of a rough stand in and attach a turbulence field (attenuation=0) to the particles.

make the particles conserve value slightly below 1.0 (0.975 e.g.) and then emit them.

now take the particles to a post app and apply a an effect like "trail" or "average" or "ghosting" or whatever it is called in your app. basically an effect that shows several images at once with a fade.
finally blur them hard..

now you have a very soft and puffy result.

cheers

alexx
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Old 09 September 2003   #3
Hi alexx

Thanks for the tip. I tried it and it gives off a great effect but not really what I'm looking for (or maybe I'm just doing it wrong) I need the puff to be thick the first 5 frames or so.

Here is where I'm at, maybe you can see what i mean:

http://www.unsung.ca/temp/smoketest.mov

I need to get that to turn to thin wispy smoke after 5 or 6 frames. And dissapear within 15-20 frames.

Cheers

.m~
 
Old 09 September 2003   #4
And here is the Maya 5 file. If it will help.

http://www.unsung.ca/temp/puff.mb
 
Old 09 September 2003   #5
Or use Combustion
 
Old 10 October 2003   #6
I'd like to use combustion. But unfortunately I don't have a copy at my disposal. :annoyed:
 
Old 10 October 2003   #7
just a quick test..puffTestQuick
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Old 10 October 2003   #8
Originally posted by alexx
.

now take the particles to a post app and apply a an effect like "trail" or "average" or "ghosting" or whatever it is called in your app. basically an effect that shows several images at once with a fade.
finally blur them hard..



can you go in to this more

do you have an example before and after
 
Old 10 October 2003   #9
before:


after:


like this you can get a trail, that unlike all the other trail and blur tools in maya can have circular and would trails (not in this example but in general)..

your post app just does not read in only one frame, but several of them with different opacity.
if you blur these results you get quite nice trails

cheers

alexx
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"A computer program does what you tell it to do, not what you want it to do." Greer's Third Law.
 
Old 10 October 2003   #10
in ae, whic effect is this

if you know the names of the tools in the other programs too, can you post them



have you started your tutorial yet, i rememer you were going to do one
 
Old 10 October 2003   #11
no idea about after effects to be honest..

in shake (which i use) it is the "average" node

and hehe.. i think i remember i wrote that i would do a tut when i have free time to spend..
a) i dont have
b) i even forgot what i wanted to write it about

cheers

alexx
__________________
"A computer program does what you tell it to do, not what you want it to do." Greer's Third Law.
 
Old 10 October 2003   #12
Originally posted by Kaiser_Sose
in ae, whic effect is this


I think it's the "ECHO" effect.
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Old 01 January 2006   #13
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