This is something that I found when cleaning my old computer out at work this week after an upgrade. This is an example of using a look at controller and a blendspace to drive a fleshy eye deformation in UE4 live at runtime.
This is the technique Jeremy Ernst used on Smaug’s eye in the demo we did with Weta over a year ago. Create a 2d blendspace for the eye poses. Export out left, right, up, down poses and connect them:
Grab the local transform from the eye, and set two vars with it:
Create a Look At Controller and integrate the blendspace: