VTubing Glossary

Key terms so you can decode rigging, animation, and streaming jargon.

Glossary of 75 VTubing, rigging, and streaming terms used by creators, technicians, and producers.

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VTubing

Making live or recorded shows through a virtual avatar rather than a live camera so performers can play a character while staying off screen.

Live2D

A Cubism based system that turns layered 2D artwork into a riggable avatar for expressive animation inside streaming software.

VTube Studio (VTS)

Real time Live2D puppeteering software that ingests tracking data and exposes hotkeys, expressions, and plugin hooks for broadcast use.

Rigging (Live2D)

The technical setup that meshes, weights, and parameterizes PSD layers so a Live2D model reacts believably to movement and inputs.

Deformers (Warp and Rotation)

Live2D hierarchy nodes that bend or rotate parts of the artwork and give riggers fine control over how shapes move together.

Mesh

A triangular grid placed on each layer so textures can deform smoothly without tearing when the avatar moves.

Live2D Physics

Built in spring logic that adds inertia and sway to hair, clothing, and props, making a 2D avatar feel lively on stream.

Live2D Parameters (Angle X or Y or Z and others)

Named sliders that drive head tilt, eyes, mouth shapes, and custom states and that can be connected to tracking, hotkeys, or scripts.

Face Tracking

Hardware and software that capture facial motion in real time and turn it into data for VTubing rigs or 3D avatars.

iPhone TrueDepth or ARKit

Apple depth sensing cameras that provide detailed blendshape data, widely used for precise VTubing facial capture.

iFacialMocap

An iOS application that streams ARKit blendshapes and head rotation to desktop tools such as Unity or VTS for enhanced facial animation.

FaceRig or Animaze

Consumer puppeteering apps that ship with ready made avatars and simple streaming integration for newcomers to virtual performance.

PrprLive

Lightweight Live2D control software favored for quick setups or laptops where a minimal feature set is sufficient.

Luppet

Japanese tracking software known for smooth facial capture and Leap Motion hand input for creators who want expressive gesture control.

VRoid Studio

A free stylized 3D avatar creator that exports VRM files and gives artists a fast way to prototype outfits and hairstyles.

VRM Format

A glTF based standard that packages humanoid models, materials, blendshapes, and license metadata for cross platform avatar use.

Blender

Open source 3D software used to sculpt, retopologize, texture, and rig avatars or props before exporting to engines and streaming tools.

Unity (Avatar Pipeline)

A game engine frequently used to configure VRM avatars, spring bones, and animation clips prior to deployment in VTubing stacks.

MMD (MikuMikuDance)

A long running ecosystem of anime style 3D models and dance motions that creators remix for performances and music videos.

VMC Protocol

A data transport format that sends tracking values between applications so capture devices, Unity scenes, and streaming rigs can stay in sync.

OSC (Open Sound Control)

A network protocol for sending commands or continuous values, often used to trigger avatar expressions or scene changes remotely.

Leap Motion or Ultraleap

Infrared hand tracking sensors that deliver finger level motion data for VTubers who want gestural storytelling.

Hand Tracking

Any method that captures hand poses, such as gloves, depth cameras, or controllers, enabling avatars to use sign like motions or props.

Full Body Tracking (FBT)

Systems that capture hips, knees, and feet through trackers or inertial units so performers can dance or act physically in VR.

VRChat

A social VR world engine where creators import avatars, run concerts, or stage cinematic shoots for promotional content.

Resonite or Neos like Worlds

Collaborative real time worlds where makers script custom stages, gadgets, and immersive experiences for virtual shows.

OBS Studio

Free broadcasting software that mixes video, audio, and browser sources and encodes the final program feed to streaming platforms.

Streamlabs Desktop

An all in one fork of OBS that bundles widget integrations, cloud overlays, and monetization utilities for simpler onboarding.

StreamElements

A cloud service that hosts overlays, alerts, tipping, and analytics, reducing the processing load on the local streaming PC.

Twitch

A live streaming platform focused on interactive shows and monetization through subscriptions, bits, ads, and channel points.

YouTube Live and Super Chat

YouTube’s live offering that combines persistent VOD replays with paid chat features and detailed performance dashboards.

Bilibili Live

A major Chinese streaming site with localized audience culture, gift economies, and moderation rules for VTuber debuts.

Niconico

A Japanese video hub known for scrolling comments and remix friendly fandoms that support music covers and collaborative edits.

Kick or Trovo

Emerging streaming platforms with smaller communities that some creators use for experimental formats or additional reach.

Channel Points or Redeems

Viewer rewards on Twitch that let audiences spend earned points to trigger avatar expressions, sound cues, or interactive bits.

Text to Speech (TTS)

Automated voice playback that reads selected chat or donation messages during a broadcast so the performer can react.

Sound Alerts

Tools that let viewers trigger short audio clips as part of engagement or monetization mechanics within a stream.

Throne (Gift Lists)

A gifting service that hides personal addresses while allowing fans to sponsor gear, merch, or studio upgrades.

Ko fi

A support platform offering one off tips, monthly memberships, and commission handling for independent creators.

Patreon

A membership system where fans subscribe to tiers that unlock behind the scenes posts, assets, or early access content.

Booth (booth.pm)

A marketplace commonly used by Japanese artists and riggers to sell model files, outfits, textures, and digital goods.

Skeb

A commission site where clients submit concise briefs and budgets and artists deliver single pass illustrations or assets.

Fiverr or Upwork

Global freelance marketplaces for hiring illustrators, riggers, editors, or technical consultants on VTubing projects.

Model Commission Brief

A document shared with artists or riggers that describes style, lore, usage rights, deliverables, and schedule expectations.

PSD Cutting for Live2D

The process of preparing layered artwork with clean separations and hidden fills so the model can deform correctly when rigged.

Clipping Masks

Layer arrangements that confine shading or highlights within specific shapes, giving riggers controllable visual accents.

Blendshapes or Shape Keys

3D deformation targets that store facial expressions and visemes, making lip sync and emotion control possible.

Humanoid Rig

A standardized bone hierarchy for human shaped characters that supports animation retargeting across engines and tools.

Spring Bones or VRM Physics

Procedural bones that add simulated bounce to hair, ribbons, and accessories in VRM or Unity based avatars.

Lip Sync

The mapping of audio or phoneme detection to mouth movements so speech lines match the performer’s voice.

Audio Interface

Hardware that converts XLR microphone signals to USB while providing clean gain, phantom power, and direct monitoring.

Microphone (Dynamic vs Condenser)

Dynamic mics reject ambient noise and suit untreated rooms, while condenser mics capture detailed tones in controlled spaces.

Noise Reduction (RNNoise or Broadcast)

Software processing that suppresses fan hum, keyboard clicks, and room reverberation in live audio feeds.

Tracking Lighting

Soft balanced lighting that keeps facial tracking sensors consistent and reduces jitter in Live2D or 3D rigs.

Green Screen or Chroma Key

A uniform backdrop that allows broadcasters to replace the background with virtual sets or graphics.

Overlays and Scenes

Graphic layouts, frames, and transition elements that structure the visual identity of a live broadcast.

Alerts and Widgets

Reactive graphics and sounds that acknowledge follows, subscriptions, tips, goals, or other viewer interactions.

Chatbots (Nightbot and others)

Automated assistants that handle repetitive commands, moderation tasks, timers, and mini games in chat.

Moderation and Rules

The policies and tools that keep a channel safe, covering timeouts, bans, slow modes, and escalation plans.

Twitch Extensions

Official overlays or panels that add polls, mini games, drops, or avatars to a Twitch channel experience.

VODs and Clips

Recorded broadcasts and short highlights that prolong the lifespan of a stream and feed social media channels.

DMCA Safe Music

Audio libraries or licensed tracks that can be used in live and recorded content without copyright strikes.

Stream Deck or Macro Pad

Programmable keypads that trigger scenes, audio stingers, lighting, or social posts with a single press.

Hotkeys and Toggles

Keyboard shortcuts or scripts that switch expressions, props, or camera angles during a performance.

Reactive PNG

A two state avatar that flips between idle and speaking images based on microphone input, commonly used for guests.

veadotube mini

A desktop app for multi state reactive PNG avatars that supports blinking, bounce, and quick profile switching.

Expressions and Emotes (Toggles)

Prebuilt facial states or props that performers trigger to add emotion, jokes, or story beats to a stream.

Twitch or Discord Emotes and Badges

Small graphics that represent community identity and subscriber milestones within chat platforms.

Schedule and Panels

Informational graphics on channel pages that list streaming times, bios, credits, and rules for new viewers.

Branding and Lore

The narrative and visual language that define a VTuber’s personality, styling, music, and recurring themes.

Collabs and Multi Streaming

Joint broadcasts where creators share scenes, audio, and reactive assets to reach overlapping audiences.

Analytics and KPIs

Performance metrics such as retention, click through rate, or conversions that inform programming decisions.

Anti Toxicity and Boundaries

Statements and practices that outline acceptable behavior and protect the performer and community from harassment.

Security and Privacy

Operational habits like two factor authentication, PO boxes, and backups that shield personal data and assets.

Debut Stream and Launch

A VTuber’s first major broadcast introducing the avatar, story hooks, and creative direction to the audience.