Using the mouseover event in three.js to interact with child meshes

My array, objMesh, contains multiple mesh objects. Each object has a children attribute, which in turn holds an array of more mesh objects (such as countries and their islands). How can I make it so that when I hover over each mesh object, its children are also highlighted?

Currently, I have a code that allows me to highlight a region when I hover over it with the mouse pointer. However, it only highlights one region at a time, whereas I want to highlight all the related objects.

var intersects = ray.intersectObjects (objMesh);

In essence, I want to be able to hover over a parent mesh and have its children meshes highlighted as well.

javascriptthree.js

Answer №1

Consider utilizing the following approach:

let raycaster = new THREE.Raycaster(camera.position, vector.sub(camera.position).normalize());
    let intersects = raycaster.intersectObjects(meshObj.children, true);
if (intersects.length > 0) {
..
}

You can incorporate your code within the if condition.

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