Is there a way to get the updated bounding box of a mesh after transforming it

Easiest to help is if you provide a jsFiddle which shows your problem.

What do you wanna achieve?

what is wallHitBoxes?

Try to use Box3. Note this post


let bbox = new THREE.Box3().setFromObject(planeMesh)
let size = new THREE.Vector3()
bbox.getSize(size)