Simplify calls to lookAt() (#24909)

* Simplify calls to lookAt()

* Clean up

examples/jsm/loaders/3DMLoader.js

@@ -15,7 +15,6 @@ import {
 	PointLight,
 	SpotLight,
 	RectAreaLight,
-	Vector3,
 	Sprite,
 	SpriteMaterial,
 	CanvasTexture,
@@ -625,7 +624,7 @@ class Rhino3dmLoader extends Loader {
 						light.position.set( geometry.location[ 0 ] - ( height / 2 ), geometry.location[ 1 ], geometry.location[ 2 ] - ( width / 2 ) );
 						light.height = height;
 						light.width = width;
-						light.lookAt( new Vector3( geometry.direction[ 0 ], geometry.direction[ 1 ], geometry.direction[ 2 ] ) );
+						light.lookAt( geometry.direction[ 0 ], geometry.direction[ 1 ], geometry.direction[ 2 ] );
 
 						break;
 

examples/webgl_animation_skinning_morph.html

@@ -71,7 +71,7 @@
 
 				camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.25, 100 );
 				camera.position.set( - 5, 3, 10 );
-				camera.lookAt( new THREE.Vector3( 0, 2, 0 ) );
+				camera.lookAt( 0, 2, 0 );
 
 				scene = new THREE.Scene();
 				scene.background = new THREE.Color( 0xe0e0e0 );

src/cameras/CubeCamera.js

@@ -1,6 +1,5 @@
 import { NoToneMapping } from '../constants.js';
 import { Object3D } from '../core/Object3D.js';
-import { Vector3 } from '../math/Vector3.js';
 import { PerspectiveCamera } from './PerspectiveCamera.js';
 
 const fov = 90, aspect = 1;
@@ -18,37 +17,37 @@ class CubeCamera extends Object3D {
 		const cameraPX = new PerspectiveCamera( fov, aspect, near, far );
 		cameraPX.layers = this.layers;
 		cameraPX.up.set( 0, - 1, 0 );
-		cameraPX.lookAt( new Vector3( 1, 0, 0 ) );
+		cameraPX.lookAt( 1, 0, 0 );
 		this.add( cameraPX );
 
 		const cameraNX = new PerspectiveCamera( fov, aspect, near, far );
 		cameraNX.layers = this.layers;
 		cameraNX.up.set( 0, - 1, 0 );
-		cameraNX.lookAt( new Vector3( - 1, 0, 0 ) );
+		cameraNX.lookAt( - 1, 0, 0 );
 		this.add( cameraNX );
 
 		const cameraPY = new PerspectiveCamera( fov, aspect, near, far );
 		cameraPY.layers = this.layers;
 		cameraPY.up.set( 0, 0, 1 );
-		cameraPY.lookAt( new Vector3( 0, 1, 0 ) );
+		cameraPY.lookAt( 0, 1, 0 );
 		this.add( cameraPY );
 
 		const cameraNY = new PerspectiveCamera( fov, aspect, near, far );
 		cameraNY.layers = this.layers;
 		cameraNY.up.set( 0, 0, - 1 );
-		cameraNY.lookAt( new Vector3( 0, - 1, 0 ) );
+		cameraNY.lookAt( 0, - 1, 0 );
 		this.add( cameraNY );
 
 		const cameraPZ = new PerspectiveCamera( fov, aspect, near, far );
 		cameraPZ.layers = this.layers;
 		cameraPZ.up.set( 0, - 1, 0 );
-		cameraPZ.lookAt( new Vector3( 0, 0, 1 ) );
+		cameraPZ.lookAt( 0, 0, 1 );
 		this.add( cameraPZ );
 
 		const cameraNZ = new PerspectiveCamera( fov, aspect, near, far );
 		cameraNZ.layers = this.layers;
 		cameraNZ.up.set( 0, - 1, 0 );
-		cameraNZ.lookAt( new Vector3( 0, 0, - 1 ) );
+		cameraNZ.lookAt( 0, 0, - 1 );
 		this.add( cameraNZ );
 
 	}