Rigging & Animation October 24, 2026

How to Make IK Arms and Legs in After Effects

Learn how to build crisp, resolution-independent IK arms and legs in After Effects using the Limber shape-layer limb script.

Crisp IK limbs in After Effects that bend at a real elbow or knee and stay sharp at any scale are the backbone of clean character work. This guide shows how to build them from shape layers with Limber.

Why shape-layer IK limbs?

Vector limbs are resolution-independent, so they never pixelate when you scale a character up, and IK means you pose the hand or foot and the joint follows naturally.

Step 1 — Generate a limb

Create a limb and Limber sets up the joints and IK controllers automatically.

Step 2 — Position the joints

Place the shoulder, elbow and wrist (or hip, knee and ankle) controllers where they belong.

Step 3 — Style the limb

Adjust width, taper, joint shape and caps to match your art direction.

Step 4 — Attach and animate

Parent hands and feet, then pose using the IK controllers.

The tool for the job

Get Limber on NexTools to build clean IK limbs in minutes.

FAQ

Will the limbs stay sharp when scaled?

Yes, they are vector shapes and remain crisp at any size.

Do I need a separate rigging tool?

Limber handles the limb rig itself; pair it with a full rigging tool for whole characters.