Get a reference to the Amazon Sumerian engine internal version of the World.

AnchorPositioning.js

// World reference
// -------------------------------------------------------------------
// The world is essentially the loaded scene. It allows interacting
// with the scene contents and reading / setting several properties
// of it.
const publicWorld = this.anchorEntity.world;
// Same as before, we actually need the more powerful internal world
// class, not the "normal" one.
this.internalWorld = si.World.forPublicWorld(publicWorld);