Sites like 3dconverter or anyconv claim to do this.
: This is the most robust method. You import your GLB model into a Unity project, install the UniVRM plugin , and use it to map the humanoid bones, set up "Spring Bones" for hair/clothing physics, and define "Blend Shapes" for facial expressions before exporting as a .vrm file. convert glb to vrm
Materials & Textures
