The Live Link Face app streams high-quality facial animation in real time from your iPhone directly onto characters in Unreal Engine. In this video we will take advantage of the Meerkat demo project to animate this adorable pet developed by Weta Digital.
https://dev.epicgames.com/community/learning/talks-and-demos/oXW/adapting-characters-to-use-real-time-facial-capture-unreal-engine