DigitalEro Offline

Hybrid IK/FK rig?

Fri, 30 Aug 2013 11:52:16

Bilge Rat 16

I have a couple of animations ideas where I need to lock the hands in place, and have the legs swinging around. Unfortunately with IK rigs the knees do not control the feet anymore, and it's very difficult to keep the hands in place with FK. Basically I'd need IK controls for the arms and FK for the legs (or viceversa). So I was wondering if is it possible to: a) disable/enable IK for a specific limb or b) make it so the elbows\knees control hands\feet? I found that in the animation editor it's possible to lock hands to elbows, but the same cannot be done with feet and knees, which is actually what I need the most. :\
Fri, 30 Aug 2013 13:04:06


The easiest way I know is to just disable the IK rig for the legs by finding these two lines
    sfmUtils.BuildArmLeg( rigKneeR,  footIKTargetR, boneUpperLegR,  boneFootR, True )
    sfmUtils.BuildArmLeg( rigKneeL,  footIkTargetL, boneUpperLegL,  boneFootL, True )
and comment them with a '#'. This will however force you to select the bones from the animation set editor as they won't show up when you hold down ctrl. And also you will have to show hidden controls because the IK rig hides them. I'm sure there are better ways of doing this but as a quick and easy fix this should work.
Fri, 30 Aug 2013 14:06:41

Bilge Rat 16

You're a life saver. Thanks! :D