sample applications for THREE.MMDLoader
You are allowed to use Crypton's Vocaloid(Hatsune Miku, Kagamine Rin, and so on) stuffs (MMD models, songs, and so on) only if you follow the guideline set by Crypton Future Media, INC. for the usage of its characters.
For detail, see https://piapro.net/en_for_creators.html
https://github.com/mrdoob/three.js/tree/dev/examples/models/mmd#readme