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underwater movement

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Mark Samuelsunderwater movement
by on Apr 25, 2014 at 4:26:04 am

Im trying to animate a mermaid. Im using wave warp to make the hair move a bit but what I want to do is when she moves from one position to another I want the hair to bend and flow like it would in a real situation. I hope Im making myself clear. Im not sure how to do this. Do I need an expression. Is it even possible in after effects?

I want it to look similar to the hair in this video
https://vimeo.com/68245403


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Joseph W. BourkeRe: underwater movement
by on Apr 25, 2014 at 1:22:50 pm

The link you're referencing is a simulation in a 3D package, so you're never going to get as accurate as that in After Effects. However, if you use a combination of the Liquify and Displacement Map effects, you could get pretty close. The only things you'd be missing would be the actual 3D effect of the individual hairs interacting, clumping, and passing in front of each other. You'll find descriptions of the effects I'm talking about below:

http://helpx.adobe.com/after-effects/using/distort-effects.html

If you can find a good video shot of liquid movement, you could use that as your Displacement Map source.

Joe Bourke
Owner/Creative Director
Bourke Media
http://www.bourkemedia.com


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Walter SoykaRe: underwater movement
by on Apr 25, 2014 at 1:53:33 pm

[Joseph W. Bourke] "The only things you'd be missing would be the actual 3D effect of the individual hairs interacting, clumping, and passing in front of each other."

Doing a couple layers of different hair images with subtle and different distortions applied might help achieve some of this volume-changing effect, but I agree that this approach will not look like a real 3D hair simulation.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
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Mark SamuelsRe: underwater movement
by on Apr 26, 2014 at 5:52:44 am

Yes I understand I how I can get some liquid movement but I want the hair to move as the model moves its head in particular directions


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Joseph W. BourkeRe: underwater movement
by on Apr 26, 2014 at 1:18:03 pm

Then it has to be done in a 3D package (Max, Maya, C4D) which has either a hair simulation plugin (Hair Farm) or a robust particle capability (such as Particle Flow, or Thinking Particles).







Hair Farm would do the job for 700 dollars, plus the price of 3DS Max (about $2400.) and a steep learning curve. True physics simulations don't come cheap.

Joe Bourke
Owner/Creative Director
Bourke Media
http://www.bourkemedia.com


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Joseph W. BourkeRe: underwater movement
by on Apr 26, 2014 at 1:28:54 pm

Mark -

If you have the time to work on learning Blender, then learning the hair simulator, you may be able to get close:



But bear in mind that anywhere you see realistic looking hair, you have to think about the amount of computer power that's needed to get it right - with millions of collisions of millions of strands, sub-surface scattering in the textures, and such. That's why even the biggest animation companies still punt when it comes to doing real looking hair which reacts to the physics of the scene. It's one of the last frontiers in making realistic looking people.

Joe Bourke
Owner/Creative Director
Bourke Media
http://www.bourkemedia.com


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