Implement Raycasting

Hi Guys,
i am a new member to this community and threejs,
i have written a code for loading multiple fbx file from my system using input tag.
Now i need to implement raycasting to it. The main aim is to consolelog the files that are hitting by the ray

const raycaster = new THREE.Raycaster()
raycaster.set(camera.position, direction)
const intersections = raycaster.intersectObjects(scene.children, true)

Completed Raycasting
My next task is to implement octree and oclussion culling
can anybody help me :slightly_smiling_face: