blend-model component Loads a three.js format JSON model containing skeletal animation blending using THREE.BlendCharacter. This is mainly used to represent the hand and Vive controllers.
Whilst most of the Blender source code is written in C and C++, Extensions (Add-ons) are coded entirely in Python.
Blender comes with >90 extensions installed, but they are not all activated by default.
Blender extensions are installed and activated through the User Preferences window (accessible through the
File menu or with the shortcut
Ctrl + Alt + u).