pinning a hand

[theazz]

im confused are trying to get the hand to stick to something and blend between or the hand follow the chest/body/hips as if fk n then blend between.

[anthonymcgrath]

with an IK handle I can check a 'sticky' button and the ik handle stays pinned whilst I'm animating other parts. I want that control on a control curve I'm using (ik handle parented under this) but with a blend function to on or off as opposed to the on/off nature of the sticky control - however now I think about it I'm not sure its achievable really but I could be wrong :/

[theazz]

yeh sure its achievable, what is you hand IK control curve parented under? are u after the ability to for instance move the hips and the hand stays where it is yes?

[anthonymcgrath]

yep thats the trick but I'm not sure how to go about it. The ik handle on my arm is parented under my arm_ctrl_curve but I'm using an FKIK arm setup so I'm lost on how to tackle it as rather than the sticky arm being on or off I'd like a facility to blend it from the constrained point back to the last keyframe point.

hope that makes sense?

[theazz]

and what is arm_ctrl_curve parented to?

[anthonymcgrath]

Its parented to the body_ctrl_curve.

basically rotating or translating this will shift all the arm controls (hand, arm and pole vectors.. spinal controls, hip control and head n neck control curves).

[theazz]

would you like to send me your file to theazz@hotmail.com? if not thats cool. I'm assuming since you excluded the feet that 'body_ctrl_curve' is basucally for your hips but everything above that is parented to it, creating a FK style control from the waist up. If you would like a more independent control system like in my rig, here. (http://www.youtube.com/watch?v=GL_5OSjJYc0) then unparent your arm_ctl_curve , group it, snap the groups pivot to the pivot of the curve (or just centre pivot). parent constrain the group to the body_ctrl_curve and then u can animate the weight on that parent constraint using a custom attribute whereever which means you can blend from your arm follwing ur body_ctrl_curve and ur arms following nothing. feel free to e-mail me if you like. If you wanna take it further you can do what i do and parent constrain it to multiple parts of the body so you have more control, just dont double up constraints lol. Broken hiearchies are the best!

hope this helped.

[anthonymcgrath]

cool thanks Azz - the multiple parent constraint to the body control curve and the broken hierarchy makes good sense - wouldn't have thought of that one but it seems the best way to tackle that kind of control and really flexible too - I'll try that out when I get home :D

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