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animated hand shaped fog

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Brett Cox
animated hand shaped fog
on Mar 15, 2010 at 6:13:23 pm

i am currently working on a project and i need to find a way to create moving fog with a hand(of fog)that reaches out to the main character. what is the best way to create this?

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Dave LaRonde
Re: animated hand shaped fog
on Mar 15, 2010 at 7:01:15 pm

How good are you at building and animating 3D wireframe models, then using 3D particle systems, all in a real-live 3D application and not AE? That's what you need.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA

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Michael Szalapski
Re: animated hand shaped fog
on Mar 15, 2010 at 7:31:28 pm

If you must use AE, you can probably get some pretty decent results a number of different ways. Assuming that this hand is reaching right to left or left to right. If you want this hand to be reaching on the z-axis, it would get a little tricky.

Depending on how you want the fog to look, you could use a layer (a precomp with a hand animation in it) to drive the emitting of particles from Particular.

You could also use that same hand precomp and use Fractal Noise or Turbulent Noise on it. That would just be a starting point. You would probably want multiple copies of the hand layer with various fractal noise settings, blending modes, levels of blur and maybe even displacement maps.

- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')

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Matthew Rideout
Re: animated hand shaped fog
on Mar 17, 2010 at 1:31:49 pm

You could use after effects and particle playground to track your hand and emit "fog style" particles from it to make it look like fog... but it will take a lot of work to make it look decent and you'll need high resolution footage of your hand.

See here

Hit play the video tutorial at the bottom... Perhaps you could film your hand against a static background with the motion and angle you want to use in your finished product, and rather than fire, play with the effects to make it look like fog.
Perhaps in front of a green screen so you can key out the background and over-lay it onto your real footage.

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