THREE.MMDLoader which I've been developing will be available in Three.js r74. It was already merged into r74 dev.
MMDLoader enables you to use MMD data on browser with Three.js.
- http://takahirox.github.io/three.js/examples/index.html#webgl_loader_mmd_stage (Sound comes out)
- https://github.com/takahirox/three.js (my working repository)
- https://github.com/mrdoob/three.js (mrdoob's repository)
(MMD Editor in the video is just WIP yet)
Note that MMDLoader isn't perfect yet and some models won't work correctly. Give me your feedback if you run into any problems on it.