Strategies for capturing the click event on a particular mesh within a group

Currently, I am working with a set of circle geometry elements that are arranged on the vertices of an icosahedron element. I am looking to trigger a click event on each individual circle element using jQuery. Can you provide guidance on how to implement jQuery click events on these elements?

Any recommendations for reliable resources or references would be greatly appreciated.

Answer №1

Implement the raycasting technique for accurate object intersection. Here's a simple guide to get you started: (using revision 70 and vanilla JavaScript)

1) Define Targets

var targets = [], 
    // Use the push method when creating your 3D objects to add them to the target list.
    // targets.push(objectMesh);

2) Set Up Raycaster

var raycaster = new THREE.Raycaster(),
    mouse = new THREE.Vector2(),
    intersects;

3) Intersect Objects

searchTarget(event){
    mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
    mouse.y = - (event.clientY / window.innerHeight) * 2 + 1;
    raycaster.setFromCamera(mouse, camera);
    intersects = raycaster.intersectObjects(targets);
    if (intersects.length > 0){
         // Handle the intersected objects here: 
         // intersects[0] refers to the object at the front
    }
}

4) Add Event Listener

renderer.domElement.addEventListener('mousemove', searchTarget, false);

You can also use jQuery:

$( "#canvas" ).mousemove( searchTarget );

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