rigging a necklace?

[mark_wilkins]

You could always build a dynamics system with a solid body object, pin constrained, for each joint in the necklace. Make a set of keyframeable joints as well, and use constraint weighting and an expression or two to place the actual necklace geometry at a position blended between the dynamic system and the keyframed joints.

Set your blend parameter to 0 (say) to get only the dynamic motion, and set to 1 to get only keyframed motion. Animate a ramp in between to get a transition if you ever think you'll need that in a shot.

-- Mark

[MasonDoran]

i notice one cool method that used soft bodies on a curve that was in turn had a spline Ik on it. The cvs of the spline ik had clusters which were then keyframed. The soft bodies allowed the curve to react to forces at the same time.

[sethmisek]

thanks mark rigid bodies should work fine for some shots.
ill probly just build diff rigs as the shots require.

2byts your suggesting i make a slpine ik into a soft body for secondary motion. that could work.

i was thinking of putting in a couple joints instead of clusters to control the spline ik. well see if i can get good motion that way.

guys think spline ik is the only/best way to animate that many joints. i would need a joint for each link im thinking.
so i couldnt rotate em by hand.

i just though of this now. i could attach the links to a curve and animate that so i dont need all those joints.

ill start trying stuff now. but more suggestions are always good.
:thumbsup:

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