How to setup inverse kinematics in Three.js

Been looking for a way to setup Inverse Kinematics in Three.js. I found this library but it seems to be still work in progress.

Then I found this in the three js docs.

I don’t really understand how it works yet. But, is this the only thing I need to setup an IK rig? Can anyone cite any good source for learning this how to use this?

have you found a solution for this because I’m trying for the same thing with the skinned mesh?

@kovikode Sorry if I’ve just read this now but I did the calculations using the FABRIK algorithm.

FABRIK (Forward And Backward Reaching Inverse Kinematics)