VTuber

A VTuber is an online entertainer who presents themselves through a digitally rendered avatar, often streaming or publishing videos as a virtual persona.

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Motion capture: Technology that records movement and maps it to a digital model. It translates a performer’s movements into avatar motion.
Ami Yamato: A virtual YouTuber character introduced by a Japan-based creator in 2011. Her early videos helped establish avatar-based online performance.
Live streaming: The real-time transmission of audio or video over the internet. Live streams are a central format for VTuber performances.
Avatar (computing): A digital representation of a person or entity in an online environment. A VTuber’s rendered character is a performed, moving avatar.
Facial motion capture: Technology that records facial movements and maps them to a digital character. It gives a VTuber’s avatar expressions that follow the performer.
Kizuna AI: A Japanese virtual YouTuber who debuted in 2016 and popularized the term VTuber. Her popularity helped make VTubing a recognizable entertainment format.
Let's Play: A video genre showing gameplay alongside a player's commentary or reactions. VTubers often pair gameplay with an animated on-screen persona.
Online identity: The identity a person presents and develops through digital services and interactions. A VTuber persona can differ from the performer’s offline identity.
Live2D: A software technology for animating two-dimensional illustrations by deforming layered artwork. It is widely used to animate illustrated avatars during streams.
Virtual YouTuber: An online video creator who appears as a virtual character rather than directly on camera. VTubers developed from the broader idea of virtual YouTube personalities.