Using Blender with a dedicated add-on is the most streamlined way to convert GLB to VRM while maintaining full control over expressions and physics. Install the VRM Add-on Download the latest VRM Add-on for Blender (.zip file). In Blender, go to Edit > Preferences > Add-ons , and select the zip file. Ensure it is enabled. Import and Prepare the Model File > Import > glTF 2.0 (.glb) and load your model. Scale and Orientation : Ensure the model is facing the Front (-Y axis) and is in a . Apply all transforms ( ) to avoid export errors. Humanoid Bone Mapping in the Blender sidebar (
Automated option (command-line / batch): convert glb to vrm full
A free package that adds VRM export/import capabilities to Unity. Using Blender with a dedicated add-on is the
(Install Unity, then import UniGLTF and VRM packages via Unity Package Manager or by importing .unitypackage.) Ensure it is enabled
The add-on will automatically attempt to map your Blender bones to the standardized VRM bone names. Manually correct any missing mappings (e.g., ensuring the Blender bone Left_Hand is mapped to the VRM bone leftHand ). Step 4: Configure Blendshapes (Expressions)
Download and install . Create a new project using a supported Unity LTS version (check the UniVRM documentation for the exact version match, typically Unity 2021 or 2022 LTS).