Sometimes, even after CATS and Blender, the VRM is "broken" inside Unity or VRChat. The blend shapes don't work, or the colliders are missing.
Most VRM software tracks motion based on a strict T-Pose template. If your GLB file is currently in an A-Pose or an action pose, the tracking sensors will misinterpret your limb positions, leading to warped joints. Open your model in a 3D editor (like Blender). Straighten the arms parallel to the floor. Point the palms downward and straighten the fingers. Check the Polygon Count
Ensure your facial expressions (for blinking, smiling, and mouth shapes like A, I, U, E, O) are cleanly named under the Mesh Data properties tab.
While there isn't a specific software suite named "Solid" with this exact feature tag, the phrase "convert GLB to VRM" refers to a high-demand workflow for virtual avatars. is a file format built on top of convert glb to vrm fixed
If you are creating a character from scratch and want to ensure it's easy to convert later, try using the VRoid Studio tool, which exports directly to VRM format. If you're interested, I can: Explain how to set up for a cartoon look. Provide a list of free tools for creating blend shapes. Show how to test your model in VSeeface .
If you have tried the above fixes and still face issues, work through this systematic checklist:
In Unity, select the model and look at the VRMLookAtHead component. Ensure the target eye bones are mapped to the actual physical eye meshes, and that the horizontal/vertical limit values aren't set to zero. 2. Hair and Clothes are Stiff (No Physics) Sometimes, even after CATS and Blender, the VRM
: Shaders used in GLB (like PBR) may not look right in VRM, which often prefers MToon shaders for an anime/stylized appearance.
Drag your model from the Assets folder into the hierarchy scene. Select the top-level model object.
To add realistic physics to hair, clothing, or capes, add a VRM Spring Bone component to the root of your armature. Drag the specific bone chains (e.g., hair bones) into the Root Bones array list. Adjust the stiffness and gravity forces to prevent the meshes from clipping through the body. 5. Final Export If your GLB file is currently in an
So when you see convert glb to vrm fixed in a changelog or a tool update (like in VRoid Mobile , Unity’s UniVRM , or Blender’s VRM add-on ), know that someone spent hours aligning bone axes, renaming vertex groups, and praying to the quaternion gods.
This is where most automated tools fail, and where we officially "fix" the conversion: Click on your 3D model in the project assets. In the Inspector window on the right, click the tab. Change Animation Type from Generic to Humanoid . Click Apply , then click Configure .