Download the (available on GitHub by developers like sstolk or vrm-c). Do not unzip the downloaded archive. Open Blender and navigate to Edit > Preferences > Add-ons .
An open-source, glTF-based file format designed explicitly for humanoid 3D avatars. Developed by the VRM Consortium, it standardizes bone mapping, physics (like hair and clothing movement), facial expressions (blend shapes), first-person camera perspectives, and digital rights management metadata.
This is the industry-standard method for creating feature-complete VRM avatars with physics (spring bones) and complex expressions. : Unity Engine and the UniVRM plugin . Process : Import your GLB file into a Unity project. Configure the Rig Type to "Humanoid" and map the bones.
To convert successfully, your GLB must have a skeletal rig (not just blend shapes or a static mesh). The converter needs to identify specific bones: convert glb to vrm
Ensure textures and materials are embedded correctly within the GLB file. VRM natively supports specific shaders like MToon (toon shading) and standard glTF PBR materials. Method 1: The Recommended Way (Unity + UniVRM)
The model must have an internal skeletal structure (bones) mapped correctly to standard human joints.
Fill out the required metadata in the export window (Title, Author, Version, and Allowed Users licensing). Download the (available on GitHub by developers like
Download the from GitHub. Keep it saved as a .zip file. Open Blender and go to Edit > Preferences > Add-ons .
Drag your model from the Project window into the active Scene hierarchy.
If your GLB is rigged but has an unnatural pose, or if you want to add facial blend shapes, Blender is your best friend. You will use two free add-ons: Better GLTF Importer/Exporter (built into Blender 3.0+) and VRM Add-on for Blender (by sator-imaging). : Unity Engine and the UniVRM plugin
Ensure your skeletal hierarchy and mesh objects are parented under one single root coordinate.
Go to File > Import > glTF 2.0 (.glb/.gltf) and select your GLB file.
This comprehensive guide covers everything you need to know about converting GLB to VRM, including the technical differences, step-by-step conversion methods, and optimization tips. Understanding GLB and VRM Formats
Before diving into the conversion process, it is important to understand what these formats do and why conversion is necessary. What is a GLB File?
The model must be humanoid, featuring a head, torso, two arms, and two legs.