Tongue IK

If the Tongue IK option was enabled when the MHX rig was generated, the tongue can be posed with IK joints instead of the tongue bones.

If the Tongue IK influence is zero, the tongue is posed with the tongue FK bones. It can also be posed with morphs.

If the Tongue IK influence is one, the tongue is posed with the tongue IK joints. Morphs have no effect on the tongue pose.

The IK influence is changed with the buttons in the FK/IK Fingers Tongue panel. It can also be changed in the Properties panel. For more information about how to use tongue IK, see the blog post on Finger IK and Tongue IK.