Attach maya hair to geo?

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  12 December 2012
Attach maya hair to geo?

If I create Maya hair on a sphere it is attached to the geometry (i.e. if you move the geo then the hair follows). This is the behavior I want.

I want to use curves to shape the hair style, so I attach that hair system to the curves I made. Now all I need to do is get the hair to move with the head geometry...

Question: How can I now attach the hair to follow my charcter's head geometry?

Caveats:
1) We are working with a geometry cache on the animation so it is not an option to use parenting. What we want instead is the same behavior that you get with the hair following the sphere mentioned above.
2) I have tried the "transplant hair option," which is supposed to do this, but it had no effect for some reason. Perhaps I'm missing a critical step somewhere in there.

thanks!
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  12 December 2012
Okay, I figured it out:

instead of attaching a hair system to the curves (as most of the tutorials out there suggest), do the following

(this assumes you have a geo and curves, but nothing else, i.e. no hair stuff yet)
1) Select the curves and the geo and choose hair>Make Selected Curves Dynamic (options:attach on, match shape off)
2) Assign PFX (Hair>Assign Paint Effects to Hair) to the resulting follicles
It will be there now but you can't see it. So...
3) Adjust clumps width on the HairSystem to see it

This will create follicles along the geo surface, and the hair will move with the geo.

Hope someone else finds this helpful!
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  12 December 2012
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