Random vertex animation

[leonfcs]

Hi people. Is there any way to ramdomly animate vertex position?

I’ve tried using EditMesh-Transform Component so I get a random position but without a seed value to animate. Also I’ve tried using a noise texture with a displacement node but you just can check the results in render time.

Any ideas, thanks!

[joojaa]

Yes, no problem. Make the object soft and put a particle expression that describes your flavor of random distribution.

[leonfcs]

mmm, great idea. Thanks!

[leonfcs]

I thought that would be easier but... This is the runtime expression I've tried: 

seed(pSphere1ParticleShape.particleId);
float $randy = rand(-0.5,0.5);
pSphere1ParticleShape.position += <>;

And vertex move randomly but always increasing it's position value making the geometry bigger an bigger...

This is what I'm trying to do: https://vimeo.com/57569169 
This was made in cinema 4d with a random effector. But now I need to do somethng similar using Maya 2012.

Thanks again. 

[joojaa]

And vertex move randomly but always increasing it's position value making the geometry bigger an bigger...

thats what you told it to do. If you keepo adding stuff to things over and over again this is what happens. What you probably meant was:

.position = .position0 + <<$randy, $randy, $randy>>;

Tough do use noise instead of rand. Also you dont need to seed it with id. (if you do then your seed needs to animate too). Your direction will be one way tough with this expression.

I thought that would be easier but.

Easy is relative this allmost certainly is still within what I for example call easy. You can also use a texture in the softbody if you wish bot hooking it up is a bit convoluted and has a bit of a feedbcak penalty.