在Three.js中计算自定义几何体的灯光

// 创建场景
var scene = new THREE.Scene();

// 创建相机
var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.z = 5;

// 创建渲染器
var renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);

// 创建自定义几何体
var geometry = new THREE.BoxGeometry(1, 1, 1);

// 创建材质
var material = new THREE.MeshPhongMaterial({ color: 0x00ff00 });

// 创建网格对象
var cube = new THREE.Mesh(geometry, material);

// 创建光源
var light = new THREE.PointLight(0xffffff, 1, 100);
light.position.set(0, 0, 2);

// 将网格对象和光源添加到场景
scene.add(cube);
scene.add(light);

// 渲染场景
function animate() {
    requestAnimationFrame(animate);
    cube.rotation.x += 0.01;
    cube.rotation.y += 0.01;
    renderer.render(scene, camera);
}
animate();