fix light render

src/lights/Light.js

@@ -5,6 +5,7 @@ import { bindProp, setFromProp } from '../tools.js';
 
 export default {
   extends: Object3D,
+  name: 'Light',
   props: {
     color: { type: String, default: '#ffffff' },
     intensity: { type: Number, default: 1 },
@@ -41,8 +42,5 @@ export default {
       if (this.light.target) this.$parent.add(this.light.target);
     },
   },
-  render() {
-    return [];
-  },
   __hmrId: 'Light',
 };