As part of a larger rig, I'm trying to achieve the effect where a deformation bone copies the location of a root bone, and the rotation in the Y&Z axis, but when rotated on the X axis only copies the rotation by 25%.

I'm having some very strange behaviour when the root bone goes beyond 180, the axis flips.

I've tried both a Copy Rotation with limited influence, and also a Transformation constraint where the X axis is mapped from -360/360 to -90/90. Both have the same issue. I've also tried different rotation modes changing between Quaternion and Euler, no change. Hoping someone can help!

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  • $\begingroup$ I'm not sure you can fix it, so maybe look into drivers instead? $\endgroup$
    – moonboots
    Feb 28 at 11:52
  • $\begingroup$ Is there a reason copy rotation is in world coordinates? Getting the rotation from 1 bone and transforming the rotation relative to that bones as well might be causing this behaviour. $\endgroup$ Feb 28 at 13:07


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