Loading... A format built on top of glTF specifically designed for humanoid 3D avatars. It includes mandatory metadata for facial expressions (BlendShapes), standard bone mapping (Humanoid rig), eye gaze tracking, and physics for hair and clothing (Spring Bones).
Before exporting from your 3D software (like Blender), apply all transforms ( Ctrl+A > All Transforms ). In Unity, ensure the Humanoid Map has no missing slots for the head, chest, and arms. 3. Missing Facial Expressions A standard GLB doesn't know what "Joy" or "Blink" is.
In the Inspector, change the Shader dropdown from Standard to (or VRM10/MToon10 depending on your UniVRM version).
Direct conversion often results in missing textures, incorrect model size, or broken facial expressions. Specialized tools like VRM Texture Replacer or VRM Body Adjust are frequently used to "fix" these post-conversion artifacts. convert glb to vrm fixed
: VRM requires a specific humanoid bone structure to track correctly.
Shape keys (blend shapes) for blinking and talking often disconnect. Method 1: The Blender and UniVRM Workflow (Most Reliable)
Unity will display a skeletal map. Ensure every circle (Head, Spine, Left Arm, etc.) is green. If any are red, manually drag the corresponding bone from your hierarchy into the slot. Click . A format built on top of glTF specifically
For transparent elements like eyelashes, visors, or sheer clothing, change the Rendering Type from Opaque to Cutout or Transparent .
return vrm
If you prefer to avoid Unity entirely, you can fix your GLB-to-VRM workflow inside Blender using the community-developed . Install the VRM Addon via Blender's Preferences menu. Import your .glb file into a clean scene. In Unity, ensure the Humanoid Map has no
Select standard expressions such as A , I , U , E , O (mouth shapes) and Blink , Blink_L , Blink_R (eyes).
If you do not want to download Unity, you can try these web-based alternatives for simple models:
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