: It allows you to import your GLB, manually map bones to the required humanoid structure, and apply specific shaders like MToon which are optimized for VRM.

This is the most robust method for high-quality results. Import the UniVRM package into a Unity project.

Simple humanoid models without complex facial rigging.

: VRM requires a mandatory T-pose for accurate tracking. Use the add-on's sidebar to map your model’s bones to the standard VRM humanoid skeleton. If your model isn't in a T-pose, the exporter can often "force" it, but manual adjustment ensures your arms don't track weirdly in-app. MToon Materials