Get mouse clicked point's 3D coordinate in three.js

Question

I\'m new in THREE.js.

I\'m trying to get 3D coordinates of point on mouse click on the object (not simple objects: Box, Sphere,..) in Canvas.

In detail, I\'m wor

Answer 1

So, as I think this question is useful for someone, I'll answer it myself (I'll write my resolve):

var renderer, canvas, canvasPosition, camera, scene, rayCaster,  mousePosition;

function init() {
    renderer = new THREE.WebGLRenderer({ antialias: false });
    canvas = renderer.domElement;
    canvasPosition = $(canvas).position();
    camera = new THREE.PerspectiveCamera(20, $(canvas).width() / $(canvas).height(), 0.01, 1e10);
    scene = new THREE.Scene();
    rayCaster = new THREE.Raycaster();
    mousePosition = new THREE.Vector2();

    scene.add(camera);

    var myObjects = new THREE.Object3D();
    // myObjects.add( your object );
    // myObjects.add( your object );
    // myObjects.add( your object );
    myObjects.name = 'MyObj_s';
    scene.add(myObjects);
};

function getClicked3DPoint(evt) {
    evt.preventDefault();

    mousePosition.x = ((evt.clientX - canvasPosition.left) / canvas.width) * 2 - 1;
    mousePosition.y = -((evt.clientY - canvasPosition.top) / canvas.height) * 2 + 1;

    rayCaster.setFromCamera(mousePosition, camera);
    var intersects = rayCaster.intersectObjects(scene.getObjectByName('MyObj_s').children, true);

    if (intersects.length > 0)
        return intersects[0].point;
};