How to Convert FBX Files to VRM Files?

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Method 1: Using Blender

1. Install Blender Download and install Blender (available for Windows, macOS, and Linux).
2. Install the VRM Plugin
   • Download the VRM plugin (such as the VRM Addon for Blender).
   • In Blender, open the “Edit” menu, select “Preferences,” then click “Install” in the “Add-ons” tab and choose the downloaded plugin file.
3. Import the FBX File
   • In Blender, use the “File” menu to select “Import,” then choose the FBX format, locate, and import your FBX model.
4. Set Up Bones and Shapes
   • Add necessary skeletons and shape keyframes (Blendshapes) as needed.
5. Export as VRM
   • Select “Export” from the “File” menu, then choose the VRM format, set the export options, and save the file[1][2].

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Method 2: Using Unity

1. Install Unity Download and install Unity (recommended version is 2019.4.x).
2. Import UniVRM
   • Download the latest version of UniVRM (.unitypackage file) and create a new Unity project.
   • Drag the downloaded UniVRM package into Unity to import it.
3. Import the FBX Model
   • Drag the FBX model into the Assets folder in Unity.
4. Set Animation Type
   • Select the imported model, and in the Inspector window, set the “Animation Type” to “Humanoid,” then click “Apply.”
5. Check Bone Configuration
   • Click the “Configure…” button to check if the bones are correctly configured. Ensure there are no red-marked bones; if there are, corrections need to be made.
6. Export as VRM
   • In the Hierarchy window, select the model, then from the menu select VRM > UniVRM > Export humanoid.
   • Fill in the author information, click “Export,” choose the save location, and complete the export[5].