Click the blend shape avatar icon to configure expressions. Map your shape keys to the standard inputs ( A , I , U , E , O , Blink , Joy , Angry , Sorrow , Fun ). This ensures eye blinking and lip-syncing work correctly in external software.
A standard GLB conversion leaves hair, skirts, and accessories completely stiff.
If you have tried the above fixes and still face issues, work through this systematic checklist: convert glb to vrm fixed
When you attempt a direct, automated conversion, the receiving software often fails to interpret the bones or textures correctly. This results in the "broken avatar" phenomenon, which includes:
Switch the viewport shading mode to to verify the textures are loading correctly. 2. Fix the Bone Hierarchy A VRM requires a strict humanoid skeleton structure. Select your armature and enter Edit Mode . Click the blend shape avatar icon to configure expressions
Drag and drop the UniVRM-X.XX.unitypackage file into the Unity Assets folder and select "Import." Import GLB: Drag your GLB file into the Assets folder. 3. Fixing the Model Structure (GLB -> VRM)
Inside the Rig configuration screen, look at the bottom of the bone mapping list. Click the dropdown menu. A standard GLB conversion leaves hair, skirts, and
GLB files are generic 3D assets, while VRM is a specialized extension of glTF 2.0 designed for avatars. A successful conversion must address: Bone Mapping
Change the material node type from Blender's default Principal BSDF to .
— Renaming .glb to .vrm will not produce a functional VRM avatar. It only works when the source file was already a VRM file in the first place.
