For usage documentation please visit http://doc.babylonjs.com/how_to/debug_layer.
The inspector will be automatically (async) loaded when starting the debug layer, if not already included. So technically, nothing needs to be done!
If you wish however to use a different version of the inspector or host it on your own, follow these instructions:
The latest compiled js file is offered on our public CDN here:
To install using npm :
npm install --save babylonjs babylonjs-inspector
Afterwards it can be imported to the project using:
import * as BABYLON from 'babylonjs';
import 'babylonjs-inspector';
This will create a global INSPECTOR variable that will be used bay BabylonJS
Webpack is supported.