Spastic IK movement

I’m not quite sure why, but for some reason my IK leg bone is spastic when I try to use the heel bone to move it. Any idea why? Here’s a video below but I also uploaded the file.


https://pasteall.org/blend/c1219ce0ab22464587127fa6e6c47fb3

It’s a dependency loop. Basically, the IK target’s position depends on the position of the calf’s tail, which depends on the position of the IK target, etc. You can see how that goes nowhere. Don’t make the IK target (or a pole target, if using that) a bone that depends on the bones in the IK chain. Generally, your leg’s IK targets and pole targets should be unparented, or parented to the root-level bone.

1 Like

That’s interesting, I thought that I already cleared the parent for the heel bone, but I hit alt + P and that seemed to work. Thanks for the advice!

1 Like