Import into Blender
Does your character model have a already?
To ensure your GLB model successfully transitions into a functioning VRM avatar, it must meet a few technical requirements:
Ultimate Guide: How to Convert GLB to VRM for Vtubing and 3D Avatars
Download the latest zip file from its official GitHub repository. Open Blender and go to Edit > Preferences > Add-ons . convert glb to vrm
If your model comes from an AI generation tool (like Meshy, Luma AI, or Rodin), it may have problematic topology with excessive polygon counts, missing UV maps, or incompatible materials. These issues need to be addressed before VRM conversion—otherwise, the exported model may be extremely laggy or crash when loaded.
Fill in the mandatory fields: Title, Version, and Author. Click to generate an initial VRM file. Step 4: Finalize VRM Components
After conversion, test your VRM file in multiple applications:
: The avatar should default to a standard T-Pose, facing the positive Z-axis. Import into Blender Does your character model have
If you have a properly rigged GLB model from platforms like Ready Player Me or Mixamo, you can utilize browser-based conversion pipelines for instant results. Step 1: Prepare the Asset
Use the component to set up the camera viewpoint offsets.
: Customizing bone physics, eye movement, and facial expressions.
: A binary version of the glTF (Graphics Language Transmission Format) standard. It packages 3D model geometry, textures, shaders, and animations into a single, compact file. If your model comes from an AI generation
: Some users have reported export freezing or crashing when using the VRM Add-on with Blender 4.3.0. If you encounter this issue, ensure you're using the latest version of the add-on, as the development team has addressed this bug in recent updates.
This is the most robust method. It gives you total control over shaders and physics. 1. Set Up Your Environment Download and install .
Match your GLB model’s bones to the corresponding VRM bone slots. If your bones are named standardly (e.g., "Left_UpLeg"), the add-on may auto-map them for you. Step 4: Configure Expressions and Blendshapes
The export pipeline will convert the Unity GameObject hierarchy with VRM components back into a VRM file.