缩放THREE.js对象上的光标位置

var scene = new THREE.Scene();
var renderer = new THREE.WebGLRenderer();

var object = new THREE.Object3D();
scene.add(object);

var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
scene.add(camera);

renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);

renderer.domElement.style.cursor = 'move';

var mouse = new THREE.Vector2();

function onMouseMove(event) {
    mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
    mouse.y = -(event.clientY / window.innerHeight) * 2 + 1;
}

document.addEventListener('mousemove', onMouseMove, false);

function animate() {
    requestAnimationFrame(animate);

    // 根据光标位置计算缩放比例
    var scale = 1 + mouse.y * 0.1;

    // 设置对象的缩放
    object.scale.set(scale, scale, scale);

    renderer.render(scene, camera);
}

animate();