This project is to help do mapping inside BabylonJS.

Currently supported data sources include:

• OpenStreetMaps and OpenStreetMaps Buildings
• Mapbox (satellite and terrain)

The "Hello World" of creating an OpenStreetMap tileset, along with extruded buildings is:

this.ourTS = new TileSet(this.scene,this.engine);
this.ourTS.createGeometry(new Vector2(4,4), 20, 2);
this.ourTS.setRasterProvider("OSM");
this.ourTS.updateRaster(35.2258461, -80.8400777, 16); //charlotte

this.ourOSM=new BuildingsOSM(this.ourTS);
this.ourOSM.doMerge=true; //merge all buildings on a tile
this.ourOSM.exaggeration=3;
this.ourOSM.generateBuildings();

New (as of 3/14/2023)
Try the "Hello World" in the BabylonJS Plaground
https://playground.babylonjs.com/#XJVMUY#4

This is published on NPM at:
https://www.npmjs.com/package/babylonjs-mapping

Note: when installing use Node v16.13.1
The current Node LTS v18.14.2 FAILS!