Making eyelid rig with driven keys and expressions  

Here’s simple eye region model with eyeball. Goal of this tutorial is to make few blend shapes for 4 position of eye and drive that blend shapes automatically as the eye ball rotates. Also at the end of tutorial we will also learn how to make expressions and rig to control rotation of eye over translation of one nurbs circle.

First we need to make 4 blend shapes for all eyeball positions. For the position where eye the ball would be looking : up, down, left and right. Easiest way to do that is to use clusters. First we gonna make cluster for upper eyelid. You need to select vertices of area that you want to make influence for that cluster (a bit wider than you need).

And then make a cluster: Create deformers / cluster. You’ll get a “C” sign somewhere in middle of the eye object. That’s node for cluster.