So you would like to bring your facial expressions into VR worlds? The VIVE Facial Tracker has you covered. It comes with dual cameras to capture lower face motion from all angles with accuracy. It pairs with VIVE Pro Eye for whole face tracking. This near-zero latency VR facial tracker uses IR illumination for accurate tracking in low light conditions.
The VIVE Facial Tracker can track up to 38 facial movements. It is Unity and Unreal Engine compatible. It has 60Hz tracking rate. You can find out more about it here.