https://techcrunch.com/2021/02/10/epic-shows-off-unreals-nearly-real-metahuman-3d-character-creator/

One of the most difficult tasks in the increasingly high-fidelity world of gaming is making realistic-looking people — especially faces. Epic today showed off a new character creation tool in Unreal Engine that lets you make a near-infinite variety of near-photorealistic digital people with far less effort than it might have taken before.

MetaHuman Creator is an application for designing characters that lets people mix and match presets then dive into the tiniest details. It’s a cloud-hosted service, since the amount of computing power and storage needed to render these characters at this resolution and level of lighting and so on is more than most people will have on hand.