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houdini18.5 kinefx ikchain gimble lock problems


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Im starting to use kinefx for rigging.

I setup a ikchain sop of 3 bones but as soon as I start moving the tip bone with rigpose

the ikchain  quickly exhibits gimble lock popping when the tip bone gets close to the mid bone.

As a result the bonedeform twists the mesh into a ugly mess.

Are there any links to helpful tutorials that show how to resolve this?

Here is a link to a movie I made to illustrate the issue


Edited by Willa
adding movie link
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  • 2 weeks later...

So what you are expierincing is not gimble lock. you have to move the pole vector foreward in 

order for ik to evaluate propperly. The pole vector indicates in which direction the knee is facing, if you dont move the knee(pole vector) it will flip. 



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