Free and Open-Source VTuber Software

• Model Asset

    MMD PMX Format

    VRM (& glTF) Format

• Animation Input

    Motion Asset

        MMD VMD Format

    Video Detector

        MediaPipe (Hand Landmarker Detection, Face Landmarker Detection, Pose Landmarker Detection)

    Motion Receiver

        VMC Protocol

• Physics Ragdoll

    Bullet Physics

• Rasterization Rendering

    Physically Based Rendering (Lambert, Trowbridge Reitz)

    Toon Shading (Celluloid Face Shadow Map (Midsagittal Plane SDF), Three Base Color, Rim Light)

    Directional Lighting

    Area Lighting (Linearly Transformed Cosines)

    Environment Lighting (Spherical Harmonics)

    Global Illumination (Voxel Cone Tracing) (Recommended only for high-end hardware. Not recommended for toon shading.)

• In Progress

    Skin Rendering (Subsurface Scattering)

    Directional Lighting Shadow Map (Irregular Z-Buffer)

    Ray Tracing (ReSTIR)

    Neural Rendering (Gaussian Splatting)