Updated builds.

build/three.js

@@ -602,6 +602,8 @@
 		if ( y === void 0 ) y = 0;
 
 
+		Object.defineProperty( this, 'isVector2', { value: true } );
+
 		this.x = x;
 		this.y = y;
 
@@ -1079,10 +1081,10 @@
 
 	Object.defineProperties( Vector2.prototype, prototypeAccessors );
 
-	Vector2.prototype.isVector2 = true;
-
 	var Matrix3 = function Matrix3() {
 
+		Object.defineProperty( this, 'isMatrix3', { value: true } );
+
 		this.elements = [
 
 			1, 0, 0,
@@ -1423,8 +1425,6 @@
 
 	};
 
-	Matrix3.prototype.isMatrix3 = true;
-
 	var _canvas;
 
 	var ImageUtils = {
@@ -1804,6 +1804,8 @@
 		if ( w === void 0 ) w = 1;
 
 
+		Object.defineProperty( this, 'isVector4', { value: true } );
+
 		this.x = x;
 		this.y = y;
 		this.z = z;
@@ -2448,8 +2450,6 @@
 
 	Object.defineProperties( Vector4.prototype, prototypeAccessors$1 );
 
-	Vector4.prototype.isVector4 = true;
-
 	/*
 	 In options, we can specify:
 	 * Texture parameters for an auto-generated target texture
@@ -2571,6 +2571,8 @@
 		if ( w === void 0 ) w = 1;
 
 
+		Object.defineProperty( this, 'isQuaternion', { value: true } );
+
 		this._x = x;
 		this._y = y;
 		this._z = z;
@@ -3208,14 +3210,14 @@
 
 	Object.defineProperties( Quaternion.prototype, prototypeAccessors$2 );
 
-	Quaternion.prototype.isQuaternion = true;
-
 	var Vector3 = function Vector3( x, y, z ) {
 		if ( x === void 0 ) x = 0;
 		if ( y === void 0 ) y = 0;
 		if ( z === void 0 ) z = 0;
 
 
+		Object.defineProperty( this, 'isVector3', { value: true } );
+
 		this.x = x;
 		this.y = y;
 		this.z = z;
@@ -3927,13 +3929,13 @@
 
 	};
 
-	Vector3.prototype.isVector3 = true;
-
 	var _vector = new Vector3();
 	var _quaternion = new Quaternion();
 
 	var Box3 = function Box3( min, max ) {
 
+		Object.defineProperty( this, 'isBox3', { value: true } );
+
 		this.min = ( min !== undefined ) ? min : new Vector3( + Infinity, + Infinity, + Infinity );
 		this.max = ( max !== undefined ) ? max : new Vector3( - Infinity, - Infinity, - Infinity );
 
@@ -4444,8 +4446,6 @@
 
 	}
 
-	Box3.prototype.isBox3 = true;
-
 	var _points = [
 		new Vector3(),
 		new Vector3(),
@@ -5162,6 +5162,8 @@
 
 	var Matrix4 = function Matrix4() {
 
+		Object.defineProperty( this, 'isMatrix4', { value: true } );
+
 		this.elements = [
 
 			1, 0, 0, 0,
@@ -6023,8 +6025,6 @@
 
 	};
 
-	Matrix4.prototype.isMatrix4 = true;
-
 	var _v1$1 = new Vector3();
 	var _m1 = new Matrix4();
 	var _zero = new Vector3( 0, 0, 0 );
@@ -6040,6 +6040,8 @@
 		if ( order === void 0 ) order = Euler.DefaultOrder;
 
 
+		Object.defineProperty( this, 'isEuler', { value: true } );
+
 		this._x = x;
 		this._y = y;
 		this._z = z;
@@ -6355,7 +6357,6 @@
 
 	Euler.DefaultOrder = 'XYZ';
 	Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];
-	Euler.prototype.isEuler = true;
 
 	var _matrix = new Matrix4();
 	var _quaternion$1 = new Quaternion();
@@ -7260,6 +7261,8 @@
 
 	var Plane = function Plane( normal, constant ) {
 
+		Object.defineProperty( this, 'isPlane', { value: true } );
+
 		// normal is assumed to be normalized
 
 		this.normal = ( normal !== undefined ) ? normal : new Vector3( 1, 0, 0 );
@@ -7470,8 +7473,6 @@
 
 	};
 
-	Plane.prototype.isPlane = true;
-
 	var _v0$1 = new Vector3();
 	var _v1$3 = new Vector3();
 	var _v2$1 = new Vector3();
@@ -7842,6 +7843,8 @@
 
 	var Color = function Color( r, g, b ) {
 
+		Object.defineProperty( this, 'isColor', { value: true } );
+
 		if ( g === undefined && b === undefined ) {
 
 			// r is THREE.Color, hex or string
@@ -8386,7 +8389,6 @@
 	};
 
 	Color.NAMES = _colorKeywords;
-	Color.prototype.isColor = true;
 	Color.prototype.r = 1;
 	Color.prototype.g = 1;
 	Color.prototype.b = 1;
@@ -13765,9 +13767,6 @@
 		var mesh = new Mesh( geometry, material );
 
 		var currentMinFilter = texture.minFilter;
-		var currentRenderList = renderer.getRenderList();
-		var currentRenderTarget = renderer.getRenderTarget();
-		var currentRenderState = renderer.getRenderState();
 
 		// Avoid blurred poles
 		if ( texture.minFilter === LinearMipmapLinearFilter ) { texture.minFilter = LinearFilter; }
@@ -13777,10 +13776,6 @@
 
 		texture.minFilter = currentMinFilter;
 
-		renderer.setRenderTarget( currentRenderTarget );
-		renderer.setRenderList( currentRenderList );
-		renderer.setRenderState( currentRenderState );
-
 		mesh.geometry.dispose();
 		mesh.material.dispose();
 
@@ -15605,8 +15600,6 @@
 				var cachedAttribute = cachedAttributes[ key ];
 				var geometryAttribute = geometryAttributes[ key ];
 
-				if ( geometryAttribute.isGLBufferAttribute ) { return true; }
-
 				if ( cachedAttribute === undefined ) { return true; }
 
 				if ( cachedAttribute.attribute !== geometryAttribute ) { return true; }
@@ -16384,10 +16377,18 @@
 
 						if ( image && image.height > 0 ) {
 
+							var currentRenderList = renderer.getRenderList();
+							var currentRenderTarget = renderer.getRenderTarget();
+							var currentRenderState = renderer.getRenderState();
+
 							var renderTarget = new WebGLCubeRenderTarget( image.height / 2 );
 							renderTarget.fromEquirectangularTexture( renderer, texture );
 							cubemaps.set( texture, renderTarget );
 
+							renderer.setRenderTarget( currentRenderTarget );
+							renderer.setRenderList( currentRenderList );
+							renderer.setRenderState( currentRenderState );
+
 							return mapTextureMapping( renderTarget.texture, texture.mapping );
 
 						} else {
@@ -26518,6 +26519,8 @@
 
 	var FogExp2 = function FogExp2( color, density ) {
 
+		Object.defineProperty( this, 'isFogExp2', { value: true } );
+
 		this.name = '';
 
 		this.color = new Color( color );
@@ -26541,10 +26544,10 @@
 
 	};
 
-	FogExp2.prototype.isFogExp2 = true;
-
 	var Fog = function Fog( color, near, far ) {
 
+		Object.defineProperty( this, 'isFog', { value: true } );
+
 		this.name = '';
 
 		this.color = new Color( color );
@@ -26571,11 +26574,12 @@
 
 	};
 
-	Fog.prototype.isFog = true;
-
 	function Scene() {
 
 			Object3D.call(this);
+
+			Object.defineProperty( this, 'isScene', { value: true } );
+
 			this.type = 'Scene';
 
 			this.background = null;
@@ -26626,8 +26630,6 @@
 
 		};
 
-	Scene.prototype.isScene = true;
-
 	function InterleavedBuffer( array, stride ) {
 
 		this.array = array;
@@ -39688,6 +39690,8 @@
 
 	var SphericalHarmonics3 = function SphericalHarmonics3() {
 
+		Object.defineProperty( this, 'isSphericalHarmonics3', { value: true } );
+
 		this.coefficients = [];
 
 		for ( var i = 0; i < 9; i ++ ) {
@@ -39915,8 +39919,6 @@
 
 	};
 
-	SphericalHarmonics3.prototype.isSphericalHarmonics3 = true;
-
 	function LightProbe( sh, intensity ) {
 
 		Light.call( this, undefined, intensity );
@@ -46355,6 +46357,8 @@
 
 	var Box2 = function Box2( min, max ) {
 
+		Object.defineProperty( this, 'isBox2', { value: true } );
+
 		this.min = ( min !== undefined ) ? min : new Vector2( + Infinity, + Infinity );
 		this.max = ( max !== undefined ) ? max : new Vector2( - Infinity, - Infinity );
 

build/three.module.js

@@ -595,6 +595,8 @@ class Vector2 {
 
 	constructor( x = 0, y = 0 ) {
 
+		Object.defineProperty( this, 'isVector2', { value: true } );
+
 		this.x = x;
 		this.y = y;
 
@@ -1070,12 +1072,12 @@ class Vector2 {
 
 }
 
-Vector2.prototype.isVector2 = true;
-
 class Matrix3 {
 
 	constructor() {
 
+		Object.defineProperty( this, 'isMatrix3', { value: true } );
+
 		this.elements = [
 
 			1, 0, 0,
@@ -1418,8 +1420,6 @@ class Matrix3 {
 
 }
 
-Matrix3.prototype.isMatrix3 = true;
-
 let _canvas;
 
 const ImageUtils = {
@@ -1796,6 +1796,8 @@ class Vector4 {
 
 	constructor( x = 0, y = 0, z = 0, w = 1 ) {
 
+		Object.defineProperty( this, 'isVector4', { value: true } );
+
 		this.x = x;
 		this.y = y;
 		this.z = z;
@@ -2438,8 +2440,6 @@ class Vector4 {
 
 }
 
-Vector4.prototype.isVector4 = true;
-
 /*
  In options, we can specify:
  * Texture parameters for an auto-generated target texture
@@ -2558,6 +2558,8 @@ class Quaternion {
 
 	constructor( x = 0, y = 0, z = 0, w = 1 ) {
 
+		Object.defineProperty( this, 'isQuaternion', { value: true } );
+
 		this._x = x;
 		this._y = y;
 		this._z = z;
@@ -3193,12 +3195,12 @@ class Quaternion {
 
 }
 
-Quaternion.prototype.isQuaternion = true;
-
 class Vector3 {
 
 	constructor( x = 0, y = 0, z = 0 ) {
 
+		Object.defineProperty( this, 'isVector3', { value: true } );
+
 		this.x = x;
 		this.y = y;
 		this.z = z;
@@ -3912,8 +3914,6 @@ class Vector3 {
 
 }
 
-Vector3.prototype.isVector3 = true;
-
 const _vector = new Vector3();
 const _quaternion = new Quaternion();
 
@@ -3921,6 +3921,8 @@ class Box3 {
 
 	constructor( min, max ) {
 
+		Object.defineProperty( this, 'isBox3', { value: true } );
+
 		this.min = ( min !== undefined ) ? min : new Vector3( + Infinity, + Infinity, + Infinity );
 		this.max = ( max !== undefined ) ? max : new Vector3( - Infinity, - Infinity, - Infinity );
 
@@ -4433,8 +4435,6 @@ function satForAxes( axes, v0, v1, v2, extents ) {
 
 }
 
-Box3.prototype.isBox3 = true;
-
 const _points = [
 	new Vector3(),
 	new Vector3(),
@@ -5161,6 +5161,8 @@ class Matrix4 {
 
 	constructor() {
 
+		Object.defineProperty( this, 'isMatrix4', { value: true } );
+
 		this.elements = [
 
 			1, 0, 0, 0,
@@ -6024,8 +6026,6 @@ class Matrix4 {
 
 }
 
-Matrix4.prototype.isMatrix4 = true;
-
 const _v1$1 = new Vector3();
 const _m1 = new Matrix4();
 const _zero = new Vector3( 0, 0, 0 );
@@ -6038,6 +6038,8 @@ class Euler {
 
 	constructor( x = 0, y = 0, z = 0, order = Euler.DefaultOrder ) {
 
+		Object.defineProperty( this, 'isEuler', { value: true } );
+
 		this._x = x;
 		this._y = y;
 		this._z = z;
@@ -6351,7 +6353,6 @@ class Euler {
 
 Euler.DefaultOrder = 'XYZ';
 Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];
-Euler.prototype.isEuler = true;
 
 const _matrix = new Matrix4();
 const _quaternion$1 = new Quaternion();
@@ -7262,6 +7263,8 @@ class Plane {
 
 	constructor( normal, constant ) {
 
+		Object.defineProperty( this, 'isPlane', { value: true } );
+
 		// normal is assumed to be normalized
 
 		this.normal = ( normal !== undefined ) ? normal : new Vector3( 1, 0, 0 );
@@ -7474,8 +7477,6 @@ class Plane {
 
 }
 
-Plane.prototype.isPlane = true;
-
 const _v0$1 = new Vector3();
 const _v1$3 = new Vector3();
 const _v2$1 = new Vector3();
@@ -7852,6 +7853,8 @@ class Color {
 
 	constructor( r, g, b ) {
 
+		Object.defineProperty( this, 'isColor', { value: true } );
+
 		if ( g === undefined && b === undefined ) {
 
 			// r is THREE.Color, hex or string
@@ -8398,7 +8401,6 @@ class Color {
 }
 
 Color.NAMES = _colorKeywords;
-Color.prototype.isColor = true;
 Color.prototype.r = 1;
 Color.prototype.g = 1;
 Color.prototype.b = 1;
@@ -13815,9 +13817,6 @@ WebGLCubeRenderTarget.prototype.fromEquirectangularTexture = function ( renderer
 	const mesh = new Mesh( geometry, material );
 
 	const currentMinFilter = texture.minFilter;
-	const currentRenderList = renderer.getRenderList();
-	const currentRenderTarget = renderer.getRenderTarget();
-	const currentRenderState = renderer.getRenderState();
 
 	// Avoid blurred poles
 	if ( texture.minFilter === LinearMipmapLinearFilter ) texture.minFilter = LinearFilter;
@@ -13827,10 +13826,6 @@ WebGLCubeRenderTarget.prototype.fromEquirectangularTexture = function ( renderer
 
 	texture.minFilter = currentMinFilter;
 
-	renderer.setRenderTarget( currentRenderTarget );
-	renderer.setRenderList( currentRenderList );
-	renderer.setRenderState( currentRenderState );
-
 	mesh.geometry.dispose();
 	mesh.material.dispose();
 
@@ -15662,8 +15657,6 @@ function WebGLBindingStates( gl, extensions, attributes, capabilities ) {
 			const cachedAttribute = cachedAttributes[ key ];
 			const geometryAttribute = geometryAttributes[ key ];
 
-			if ( geometryAttribute.isGLBufferAttribute ) return true;
-
 			if ( cachedAttribute === undefined ) return true;
 
 			if ( cachedAttribute.attribute !== geometryAttribute ) return true;
@@ -16441,10 +16434,18 @@ function WebGLCubeMaps( renderer ) {
 
 					if ( image && image.height > 0 ) {
 
+						const currentRenderList = renderer.getRenderList();
+						const currentRenderTarget = renderer.getRenderTarget();
+						const currentRenderState = renderer.getRenderState();
+
 						const renderTarget = new WebGLCubeRenderTarget( image.height / 2 );
 						renderTarget.fromEquirectangularTexture( renderer, texture );
 						cubemaps.set( texture, renderTarget );
 
+						renderer.setRenderTarget( currentRenderTarget );
+						renderer.setRenderList( currentRenderList );
+						renderer.setRenderState( currentRenderState );
+
 						return mapTextureMapping( renderTarget.texture, texture.mapping );
 
 					} else {
@@ -26582,6 +26583,8 @@ class FogExp2 {
 
 	constructor( color, density ) {
 
+		Object.defineProperty( this, 'isFogExp2', { value: true } );
+
 		this.name = '';
 
 		this.color = new Color( color );
@@ -26607,12 +26610,12 @@ class FogExp2 {
 
 }
 
-FogExp2.prototype.isFogExp2 = true;
-
 class Fog {
 
 	constructor( color, near, far ) {
 
+		Object.defineProperty( this, 'isFog', { value: true } );
+
 		this.name = '';
 
 		this.color = new Color( color );
@@ -26641,13 +26644,14 @@ class Fog {
 
 }
 
-Fog.prototype.isFog = true;
-
 class Scene extends Object3D {
 
 	constructor() {
 
 		super();
+
+		Object.defineProperty( this, 'isScene', { value: true } );
+
 		this.type = 'Scene';
 
 		this.background = null;
@@ -26697,8 +26701,6 @@ class Scene extends Object3D {
 
 }
 
-Scene.prototype.isScene = true;
-
 function InterleavedBuffer( array, stride ) {
 
 	this.array = array;
@@ -39795,6 +39797,8 @@ class SphericalHarmonics3 {
 
 	constructor() {
 
+		Object.defineProperty( this, 'isSphericalHarmonics3', { value: true } );
+
 		this.coefficients = [];
 
 		for ( let i = 0; i < 9; i ++ ) {
@@ -40024,8 +40028,6 @@ class SphericalHarmonics3 {
 
 }
 
-SphericalHarmonics3.prototype.isSphericalHarmonics3 = true;
-
 function LightProbe( sh, intensity ) {
 
 	Light.call( this, undefined, intensity );
@@ -46489,6 +46491,8 @@ class Box2 {
 
 	constructor( min, max ) {
 
+		Object.defineProperty( this, 'isBox2', { value: true } );
+
 		this.min = ( min !== undefined ) ? min : new Vector2( + Infinity, + Infinity );
 		this.max = ( max !== undefined ) ? max : new Vector2( - Infinity, - Infinity );