threejs 点击模型拾取，页面有偏移导致拾取不准

• 方式一：适合页面无偏移的情况

let mouse = new THREE.Vector2(
    (event.clientX / this.dom.offsetWidth) * 2 - 1,
    -(event.clientY / this.dom.offsetHeight) * 2 + 1
);
let raycaster = new THREE.Raycaster();
raycaster.setFromCamera(mouse, this.camera);
let intersects = raycaster.intersectObject(object.model, true);

• 方式二：页面有偏移

let mouse = new THREE.Vector2(
    ((event.clientX - this.dom.getBoundingClientRect().left) / this.dom.offsetWidth) * 2 - 1,
    -((event.clientY - this.dom.getBoundingClientRect().top) / this.dom.offsetHeight) * 2 + 1
);
 
let standardVector = new THREE.Vector3(mouse.x, mouse.y, 1);// 标准设备坐标
let worldVector = standardVector.unproject(this.camera); // 标准设备坐标转世界坐标
let ray = worldVector.sub(this.camera.position).normalize();// 射线投射方向单位向量(worldVector坐标减相机位置坐标)
let raycaster = new THREE.Raycaster(this.camera.position, ray);
let intersects = raycaster.intersectObject(object.model, true);

• 方式三：页面有偏移

let mouse = new THREE.Vector2(
    ((event.clientX - this.dom.getBoundingClientRect().left) / this.dom.offsetWidth) * 2 - 1,
    -((event.clientY - this.dom.getBoundingClientRect().top) / this.dom.offsetHeight) * 2 + 1
);
 
let raycaster = new THREE.Raycaster();
raycaster.setFromCamera(mouse, this.camera);
let intersects = raycaster.intersectObject(object.model, true);

.clientX .clientY是以设备左上角为坐标原点，单位px。 .offsetX .offsetY是以canvas画布左上角为坐标原点，单位px