阴影和光源调试
- CameraHelper
- SpotLightHelper
可以使用如上辅助对象调试
const spotLight = new THREE.SpotLight( 0xffffff );
spotLight.position.set( 10, 10, 10 );
scene.add( spotLight );
const spotLightHelper = new THREE.SpotLightHelper( spotLight );
scene.add( spotLightHelper );