# VLiva

> VLiva is a native Linux VTubing app for running and tracking Live2D VTuber avatars without leaving Linux or relying on a compatibility layer.

## Project
- Name: VLiva
- Website: https://vliva.tamkungz.me/
- Page title: VLiva | Native Live2D VTubing for Linux
- Alternate name: VLiva - VTubing for Linux
- Status: In development
- Software version shown on website schema: 1.0.0
- Application category: MultimediaApplication
- Primary language: English
- Developer: TamKungZ_
- Developer URL: https://dev.tamkungz.me/
- Contact: vliva@tamkungz.me
- Bug reports: https://github.com/TamKungZ/VLiva/issues
- X / Twitter: https://x.com/VLivaSoftware
- Reddit: https://www.reddit.com/r/VLiva/
- Copyright notice: VLiva / TamKungZ_
- Live2D notice: This application uses Live2D Cubism SDK. (c) Live2D Inc.

## Product Summary
VLiva is VTubing software developed specifically for Linux. It provides the model runtime, tracking, physics, and controls needed to use a Live2D avatar in VTubing, streaming, and recording workflows.

The app is focused on native Linux creator workflows and avoids requiring Wine, a VM, or another compatibility layer for the main application experience.

## Core Notes
- VLiva is currently in development.
- VLiva is currently closed-source and is not distributed under an open-source license.
- VLiva is not replacing VTube Studio; it is a native Linux alternative with its own focus.
- Users provide their own Live2D models and must have the legal rights needed for their assets.
- VLiva uses Live2D Cubism SDK and is not affiliated with, endorsed by, or sponsored by Live2D Inc.
- Test model credit on the homepage is koahri1 for art and MedL2D for Live2D setup.

## Platform & Requirements
- Operating system: Linux
- Now Support: Ubuntu, Debian
- Planning: Fedora, Arch, Alpine
- Compatibility note: these are root Linux families; distributions that branch from these bases have a high chance of running VLiva successfully.
- Model format: Live2D
- Tracking input: Webcam
- Demo rendering backend: OpenGL
- Release rendering backends planned: OpenGL and Vulkan
- Streaming workflow target: OBS capture, including transparent output workflows.

## Homepage Sections
- Hero: Run and track Live2D models on Linux.
- About: VLiva is VTubing software developed specifically for Linux.
- Distro Support: Now Support Ubuntu and Debian; Planning Fedora, Arch, and Alpine.
- Features: Load Live2D models, track with webcam, use it for streaming, tune the runtime.
- Preview: full preview video showing model rendering and tracking in the current build.
- Builds: Demo and Release tracks.
- FAQ: closed-source status, VTube Studio positioning, VBridger evaluation, and demo tracking details.

## Feature Summary
- Load Live2D models directly on Linux.
- Support model physics, standard parameters, and a native Qt/QML interface in the release track.
- Use webcam tracking.
- Demo tracking uses OpenCV for basic left-right motion and blink detection.
- Release tracking plans OpenCV plus MediaPipe full landmark tracking.
- Use a Live2D avatar for Linux streaming, recording, and OBS workflows.
- Tune model parameters, tracking smoothing and strength, physics forces, background color, and transparent output.

## Demo Build
- Status: In development.
- Purpose: rough but usable build for trying the core Live2D runtime, basic tracking, and OpenGL rendering.
- Quality target: quick, functional prototype quality.
- Tracking: OpenCV only.
- Motion detection: basic left-right movement detection.
- Blink detection: basic blink detection.
- Interface: Dear ImGui.
- Rendering: OpenGL.

## Release Build
- Status: In development.
- Purpose: full application track designed for daily creator use and future tracking expansion.
- Interface: Qt/QML.
- Tracking: OpenCV and MediaPipe full landmark tracking.
- Tracking architecture: ready for additional trackers.
- VCollab: support planned for loading other creators' models into your app.
- OBS: transparent screen sharing workflow.
- Settings: program settings, model config, and model profiles.
- Controls: per-parameter tracking weight controls.
- Rendering: OpenGL and Vulkan.
- Distribution / platform services: Steam SDK support.

## Integrations and Compatibility Notes
- OBS transparent capture is a target workflow.
- VBridger compatibility is under evaluation because it could simplify migration for existing VTuber workflows.
- Plugin-related documentation exists for a C ABI plugin surface, lifecycle flow, example plugin, and OBS shared-frame integration.

## Website Preview Assets
- Open graph / hero image: https://pub-df28fb9f69aa4326a1c6e10fb1f2abdc.r2.dev/assets-image/vliva/vliva-open.png
- Preview image 1: https://pub-df28fb9f69aa4326a1c6e10fb1f2abdc.r2.dev/assets-image/vliva/vliva-preview-image-1.png
- Preview image 2: https://pub-df28fb9f69aa4326a1c6e10fb1f2abdc.r2.dev/assets-image/vliva/vliva-preview-image-2.png
- Preview video (WebM): https://pub-df28fb9f69aa4326a1c6e10fb1f2abdc.r2.dev/assets-image/vliva/vliva-preview-release.webm
- Preview video (MP4): https://pub-df28fb9f69aa4326a1c6e10fb1f2abdc.r2.dev/assets-image/vliva/vliva-preview-release-h264.mp4
- App icon: https://vliva.tamkungz.me/assets/v2/logo/vliva_logo_v2_app_icon.png
- Logo: https://vliva.tamkungz.me/assets/v2/logo/vliva_logo_v2_icon_text_wide.png

## Documentation
- Documentation index: https://vliva.tamkungz.me/documentation
- Documentation title: Documentation | VLiva Plugin API
- Documentation summary: VLiva plugin, shared frame, and OBS integration documentation with focused API references and implementation notes.
- Categories: Plugin API Surface, Lifecycle and Call Order, Example Plugin Walkthrough, OBS Shared Frame Plugin.
- Topic groups: Core API, Practical Example, OBS Integration.

## Documentation Pages
- Plugin API Surface: https://vliva.tamkungz.me/documentation/plugin-api
- Lifecycle and Call Order: https://vliva.tamkungz.me/documentation/lifecycle
- Example Plugin Walkthrough: https://vliva.tamkungz.me/documentation/example-plugin
- OBS Shared Frame Plugin: https://vliva.tamkungz.me/documentation/obs-plugin

## Plugin API Documentation Highlights
- Plugin API is based on a C ABI contract between the VLiva host, PluginManager, and plugins.
- Plugins advertise VLIVA_PLUGIN_API_VERSION.
- Tracking payload schema is versioned by VLIVA_TRACKING_FRAME_VERSION.
- Host callbacks can expose logging, tracking snapshot access, and UDP bridge callbacks.
- Plugins can receive a VlivaTrackingFrame containing face, body, eye, mouth, model name, and tracking mode data.
- Shared libraries export a create_plugin symbol returning a VlivaPluginApi table.

## OBS Documentation Highlights
- OBS integration documentation covers shared memory capture and an OBS source integration.
- Shared frame protocol uses a strict header contract, double buffering, frame metadata, and atomic ordering.
- Publisher creates a POSIX shared memory mapping and publishes RGBA frames.
- Consumer reads latest stable frames using a copy-and-verify loop.
- OBS source id documented as vliva_capture_source.
- Build/install flow targets a .so OBS module.

## Website Pages
- Home: https://vliva.tamkungz.me/
- Documentation: https://vliva.tamkungz.me/documentation
- Privacy Policy: https://vliva.tamkungz.me/privacy-policy
- Terms of Use: https://vliva.tamkungz.me/terms-of-use
- License / EULA: https://vliva.tamkungz.me/license/
- Robots: https://vliva.tamkungz.me/robots.txt
- Sitemap: https://vliva.tamkungz.me/sitemap.xml
- LLM discovery file: https://vliva.tamkungz.me/llms.txt

## Privacy Highlights
- Privacy policy last updated: June 30, 2026.
- The policy is split into website privacy and software privacy.
- VLiva is designed with a local-first approach for software features.
- The app does not require account registration for core local features.
- Camera permission is handled by the user's operating system.
- Camera input and face-tracking data are used for real-time functionality and are not uploaded by default.
- Model loading, tracking, avatar control, animation logic, and streaming workflows are designed to run locally whenever possible.
- User models, textures, expressions, motions, settings, plugins, and project files remain under user control.
- UDP output, OBS shared-memory capture, plugins, and Steamworks/store features may expose or process data through local tools, user-configured endpoints, trusted plugins, or the distribution platform.
- Diagnostic logs may be created locally and stay on the user's device unless the user chooses to share them.
- Optional network features may include update checks, documentation links, optional integrations, user-configured endpoints, Steamworks features, and future plugin or extension features.

## Terms Highlights
- Terms of Use last updated: June 30, 2026.
- The terms are split into website terms and software terms summary.
- VLiva may be provided as preview, beta, test, or early-access software.
- Features may change, break, be removed, or behave differently between versions.
- Users are responsible for the models, textures, motions, expressions, plugins, scripts, overlays, recordings, and other assets they use with VLiva.
- Users must ensure they have rights for streaming, monetization, commercial use, redistribution, or public performance.
- If VLiva is used as a primary element of a business and annual sales made directly or indirectly by the app or content produced by it exceed 20 million JPY, Live2D Inc. publication license obligations may apply.
- Plugins and extensions should only be installed from trusted sources.
- VLiva is provided as is and as available.

## License / EULA Highlights
- License page: https://vliva.tamkungz.me/license/
- EULA last updated: June 30, 2026.
- Publisher / developer: TamKungZ_ / Kitthiwat Phimpromma.
- VLiva is proprietary, closed-source software unless a separate written notice says otherwise.
- Users receive a limited, non-exclusive, non-transferable, revocable license to install and use VLiva under the EULA.
- The EULA covers demo builds, test builds, paid full versions, Steam builds, plugins, documentation, and related materials.
- Demo/test builds may include limitations such as time limits, watermarks, feature restrictions, disabled export or commercial-use features, reduced support, or other technical limits.
- The full version may require a one-time purchase or another purchase model stated at the point of sale.
- Users may not bypass payment, demo restrictions, license checks, platform rules, watermark systems, time limits, or other technical limitations.
- Commercial streaming is allowed only when the user also complies with VLiva terms, model/asset licenses, Live2D requirements, platform rules, and applicable law.
- Business, agency, studio, multi-user, redistribution, sublicensing, or bundled-service use may require written permission or a business arrangement.
- The EULA includes the required Live2D Cubism SDK statement supplied for VLiva's Live2D licensing process.
- Third-party components include Live2D Cubism Native SDK and Cubism Core, Qt 6, OpenCV, MediaPipe, GLEW, stb_image, OpenGL/graphics-driver components, OBS/libobs integration, Steamworks SDK, Linux runtime/system libraries, display server components, and driver components.

## Search / SEO Keywords
- VLiva
- Live2D Linux
- Linux VTubing
- VTuber software for Linux
- Live2D VTuber app
- OpenCV tracking
- MediaPipe face tracking
- OBS transparent capture
- Qt QML Live2D
- OpenGL Vulkan VTubing
- Live2D VTuber Linux app
- VLiva Live2D VTuber software
- VLiva Live2D VTuber Linux application
- Linux
- VTubing

## Public References
- Project issues: https://github.com/TamKungZ/VLiva/issues
- Documentation source repository link shown in docs footer: https://github.com/TamKungZ/VLiva
- Test model BOOTH page shown on homepage: https://booth.pm/en/items/4711410
- Model artist: https://twitter.com/koahri1
- Model Live2D: https://twitter.com/MedL2D