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LAPLACE Persona

Opinionated and Extensible VTubing Tool

Live2D and VRM, on one stage

Load Cubism 3, 4, and 5 or VRM 0.x and 1.0 models straight from disk, with no limit on how many share the stage.

Models

A Live2D model on stage, with the Inspector in the top-left corner

Your face, live on your avatar

The official iOS app, LAPLACE Persona Tracker, sends all 52 ARKit expressions and head motion at 60 frames per second. VTube Studio, iFacialMocap, and webcams work too.

Tracking

LAPLACE Persona Tracker tracking a face on iPhone

VTube Studio models, ready to go

Parameter mappings tuned in VTube Studio carry straight over, and motions and expressions left loose in the folder show up too.

Parameter Bindings

The parameter bindings editor for a Live2D model

Whole stages, switched on cue

Save complete stage layouts and switch between them mid-stream with fades, wipes, and other transitions.

Scenes

Transition settings for a scene

Transparent stage, output straight to OBS

The stage window carries its own alpha channel, so an OBS window capture gets a clean picture with no green screen or plugins. It keeps rendering when the window loses focus.

Stage Background

The model and two image layers on a transparent stage

More than an avatar

Alongside Live2D and VRM models, stack images, videos, text, 3D props, and webpages freely as layers.

Layers

Settings for an “ON AIR” text layer

Effects for the scene, or one layer

Bloom, depth of field, LUTs, film grain, and more, on the whole scene or a single layer.

Effects

Bloom effect settings

Light it like a studio

Multiple lights, per-light shadows, environment models, environment maps, and fog set the mood on the 3D stage.

Lighting

Lighting and environment settings in the dark appearance

Reusable motion recording

Capture tracked movement as Live2D motion files or VRMA animation clips, ready to play any time.

Recording Motions

Motion recording and the motion list for a VRM model

Everything on a key

Switch scenes and toggle effects from keys, controllers, or system events, and give each avatar its own shortcuts.

Automations

Automations assigned to function keys

Built to be extended

A local WebSocket plugin API with a fully typed SDK, an official Stream Deck plugin, and an MCP server that lets agents run the stage.

Plugin API

Plugin API settings and a connected client

Three platforms, four languages

LAPLACE Persona runs on macOS, Windows, and Linux, in English, Simplified Chinese, Traditional Chinese, and Japanese.

Free to download

LAPLACE Persona is free, commercial streams included.

To track your face with an iPhone or iPad, install Persona Tracker.

Download on the App Store

System Requirements

macOS
macOS 13 Ventura or later, Apple Silicon only
Windows
Windows 10 or later, x64
Linux
Linux x64 with glibc 2.25 or later (Ubuntu 18.04, Debian 10, RHEL 8, or newer)

Face tracking with an iPhone or iPad needs a device with ARKit face-tracking support running iOS 17 or iPadOS 17 or later.

Features

Live2D Rendering
Cubism 3, 4, and 5 rigs up to moc3 v6 powered by a high-performance WebGPU engine
VRM Avatars
Full VRM 0.x and 1.0 support with orbit camera, spring bones, and MToon shading
Import Custom Models
Bundled sample avatars plus direct loading of local disk files
Version History
Save versions of your own models to compare, restore, or switch back
Motion Recording
Capture real-time tracking performances into motion files or animation clips
Inventory
Unified management and search for models, images, videos, 3D props, and web pages
Scenes
Save complete stage configurations and switch seamlessly during streams
Scene Transitions
Fades, wipes, circle irises, or custom image and video transition stinger effects
Layers
Stack and arrange multiple models, images, videos, and 3D objects in a shared scene
Camera
Frame the 3D scene without changing avatar placement
Lighting
Configurable scene lights with per-light dynamic shadow rendering
Environment
Environment maps (IBL), 3D stage geometry, atmospheric fog, and physics
Post-Processing Effects
Tone mapping, color grading LUTs, bloom, rim lighting, depth of field, and precipitation
Face Tracking
LAPLACE Persona Tracker, VTube Studio (iOS), and iFacialMocap with Perfect Sync
Pose Tracking
Receive full-body skeletal tracking over VMC or mocopi protocols from external senders
Webcam Tracking
Built-in MediaPipe engine for tracking face, hands, and body from a single webcam
Lip Sync
Drive Live2D and VRM mouth shapes from microphone audio with voice calibration
Model-Aware Mapping
Automatic detection and parsing of parameter bindings from companion .vtube.json files
Motion and Expression Control
Trigger motion groups or individual clips, and blend and persist expression combinations
Automations
Event- and hotkey-driven multi-step actions with dedicated avatar shortcuts
Plugin API
Local WebSocket server paired with a typed SDK and interactive web developer console
MCP Server
Enable AI assistants to switch scenes, transform models, and inspect the rendered stage
Web Console
Control the running desktop app from a browser
Stream Deck
Switch models and scenes and trigger hotkeys and automations from physical keys
Configurable Stage
Transparent canvas, solid color, or custom background imagery with instant hot-swapping
Direct Manipulation
Intuitive canvas dragging, scroll-wheel scaling, Shift-wheel rotation, and one-click reset
Overlay Behavior
Frameless transparent stage window, detached control panel, and system tray menu
Broadcast Capture
Continuous background rendering ensuring stutter-free window capture in OBS
Studio Mode
Capture high-resolution transparent photos and 4K/8K video from the stage
Performance Controls
Frame rate capping, shader quality presets, and on-screen real-time performance metrics
Multilingual Interface
Full localization in English, Simplified Chinese, Traditional Chinese, and Japanese
Local Configuration and Backups
Centralized local storage for configurations, scenes, and API keys for easy backup

Resources

Last updated on November 7, 2026

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