Is there a way to retrieve the global position of an Object3D nested inside another Object3D?
scenario:
var parent = new THREE.Object3D();
parent.position.set(100, 100, 100);
var child = new THREE.Object3D();
child.position.set(100, 100, 100);
parent.add(child);
scene.add(parent);
remarks:
I initially attempted to achieve this using:
console.log(child.localToWorld(parent.position));
...however, the result was (100, 100, 100) instead of the expected (200, 200, 200).
To extract the global position, follow these steps:
let destination = new THREE.Vector3(); // Initialize it once and reuse
child.getWorldPosition( destination );
The extracted result will be stored in destination.
NOTE: This method has been updated to work with three.js version r.120.
With threejs version r89, you have the ability to easily retrieve the world position using Object3D.getWorldPosition. The exact date of when this functionality was added is unknown to me.
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