This Cool Custom Solution Eliminates IK Stretching in Maya

According to the creator, the advantages of this solution include maintaining normal joint length without stretching in the IK and directly reflecting the height changes in your 3D characters when their heels are raised, yielding the same result you would get when raising your heels without bending knees in real life.

As of now, the tool isn’t commercially available and appears to have been designed for the artist’s personal use only. We strongly encourage you to follow Shima on Twitter to learn more and explore the author’s previous animation projects.