CGTalk - Pole vector constrain problem

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alfonsc

11-17-2009, 02:29 AM

Hello

I’ve been working on a quadruped rigging, but know that I’m doing the left arm I have encounter a problem. When I constrain the IK pole vector that goes from the shoulder to the wrist, the chain that the constrain creates flips perpendicular to the joints chain.

I’ve tried everything: orienting the control in many different ways, parent it to the elbow joint, moving it around and constrain; and it always give the same result.

I put an image to clarify the problem

http://img685.imageshack.us/img685/4581/poleproblem.th.jpg (http://img685.imageshack.us/i/poleproblem.jpg/)

I didn’t have any problem with any of the other extremities and I don´t know whats going on.

I will really appreciate any help

norbertnacu

11-17-2009, 06:31 AM

Hi There,
Can you send us the file? Did you do this:

1. SetPreferred Angle?
2. Zero out the transforms?
3. No multiple connections?
- SDK
- Expressions
- Constraints
- Utility Nodes

Thanks,
Norbert Nacu

alfonsc

11-18-2009, 06:54 AM

Thank you very much for your response.
I already found the problem, it was a parent constrain that I had with the shoulder control. I undo the constrain, redo it, and it is fix.

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