three.js灯光师
const color = parseInt(colors[i % colors.length], 16);
const light = new THREE.PointLight(color, 2, 65);
light.position.set(0, 2, 0);
light.add(
new THREE.Mesh(
new THREE.SphereGeometry(.5, 16, 50),
new THREE.MeshBasicMaterial({ color })
)
);
this.sceneA.add(light);
