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dereksig
12-02-2010, 10:23 PM
I have been experiencing significant problems rigging this character. I have double jointed knees on its legs and I want IK to rotate them equally. I have influence objects keyed to deform the knee area but they only look good when both joints are at equal rotation values. Is there an expression that will work or reordering of the inputs or something. This is really driving me crazy.

Coaster
12-04-2010, 08:54 PM
You are asking a lot if the Ik system there.

You could try parenting the second joint under the leg instead of the main knee, this removes the unpredictable second knee joint from the Ik chain, but still has it follow the leg rotation so it will be in place. Then use a set driven key (driven by the main knee's rotation) to move and rotate the second knee to give you the right deformation.

I'd always avoid putting more than 3 joint in an Ik chain.

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12-04-2010, 08:54 PM
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