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VestanPance
09-21-2007, 04:31 PM
Let me say right off the bat that I don't have TP, only core +AR.

I working on a medical animation that is at the cellular level. I would like the individual cells to drift about, slowly and randomly. I have given the vibrate tag a shot but it always seems to orient the object to the absolute center of the scene. Are there any good plugins/xPresso/techniques to get this done?

Thanks,
SP/VP

heathivan
09-21-2007, 04:41 PM
Id try mograph and perhaps animate the parameters of the Random effector. You can adjust its strength or falloff if the cells are already moving in a certain direction.

----h

Joseppi
09-21-2007, 05:10 PM
VP,

How about putting the cells coming from particle emetters (slow speed), then using wind or gravity effectors with randomness settings...

Joe

JamesMK
09-21-2007, 05:12 PM
And, in case you don't have MoGraph, try the Noise node in Xpresso applied to the position vector of your cells. Using an Iterator you could easily make it step through all the cell objects and displace their positions. The Noise node has a Brownian motion mode that should be able to produce the right look of the movement patterns.

NWoolridge
09-21-2007, 05:14 PM
Here's an approach using the older particle system:

Just seed a space with some non-moving particles, and use a big turbulence field to make them drift around. Turn on the wind object for some directional drift...

Nick

JoelOtron
09-21-2007, 06:11 PM
I put my vote in for mograph (random effector set to noise)--makes this sort of thing effortless.

You might also want to try using Chris Smith's CS tools. You can drop the vibrate node (included in the set) into each object and set it for a different parameter---and wont need to keep coordinates at 000.

Heres a shot from something I worked on last year--its just ONE grid cloner with a random effector---done.

http://www.betatronstudios.com/joel/float%20hpv.mov

VestanPance
09-25-2007, 12:03 AM
Thanks for the tips. I am going to avoid Mograph for now due to the fast approaching deadline. The turbulence method looks promising for now although we are probably going to get MoGraph after this one.

Thanks again. SP/VP

soccerrprp
09-25-2007, 01:23 AM
Joel,

Like the lighting in that video. What lighting did you use?

Richard

JoelOtron
09-25-2007, 01:31 AM
Joel,

Like the lighting in that video. What lighting did you use?

Richard

Thanks Richard

Its just an area key light and one or 2 fill lights and environment fog.

The look you are probably responding to however was mostly achieved in post in after effects (lenscare dof, starglow, photo filter, and grain). I think its a bit too monochrome and blown out--but illustrates the drift technique well I think.

Good luck VP

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