I'm trying to get access to inner THREE components to be able to change camera positions, add items to the scene, etc. How can I get access to these internal mechanics of THREE from this module? web-ifc-viewer: https://github.com/IFCjs/web-ifc-viewer
You can use ifcViewer.context
to get the scene objects from Three.js.
Some other useful properties/ methods
Hope this is what you're looking for.