Fix some param check bug

src/core/BufferGeometry.js

@@ -67,7 +67,7 @@ Object.assign( BufferGeometry.prototype, EventDispatcher.prototype, {
 
 	addAttribute: function ( name, attribute ) {
 
-		if ( ( attribute && attribute.isBufferAttribute ) === false && ( attribute && attribute.isInterleavedBufferAttribute ) === false ) {
+		if ( ! ( attribute && attribute.isBufferAttribute ) && ! ( attribute && attribute.isInterleavedBufferAttribute ) ) {
 
 			console.warn( 'THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).' );
 
@@ -777,7 +777,7 @@ Object.assign( BufferGeometry.prototype, EventDispatcher.prototype, {
 
 	merge: function ( geometry, offset ) {
 
-		if ( ( geometry && geometry.isBufferGeometry ) === false ) {
+		if ( ! ( geometry && geometry.isBufferGeometry ) ) {
 
 			console.error( 'THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry );
 			return;

src/math/Matrix4.js

@@ -152,7 +152,7 @@ Object.assign( Matrix4.prototype, {
 
 	makeRotationFromEuler: function ( euler ) {
 
-		if ( ( euler && euler.isEuler ) === false ) {
+		if ( ! ( euler && euler.isEuler ) ) {
 
 			console.error( 'THREE.Matrix: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' );
 

src/math/Quaternion.js

@@ -196,7 +196,7 @@ Object.assign( Quaternion.prototype, {
 
 	setFromEuler: function ( euler, update ) {
 
-		if ( ( euler && euler.isEuler ) === false ) {
+		if ( ! ( euler && euler.isEuler ) ) {
 
 			throw new Error( 'THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.' );
 

src/math/Vector3.js

@@ -238,7 +238,7 @@ Object.assign( Vector3.prototype, {
 
 		return function applyEuler( euler ) {
 
-			if ( ( euler && euler.isEuler ) === false ) {
+			if ( ! ( euler && euler.isEuler ) ) {
 
 				console.error( 'THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.' );
 

src/renderers/WebGLRenderer.js

@@ -1082,6 +1082,7 @@ function WebGLRenderer( parameters ) {
 	// Rendering
 
 	this.render = function ( scene, camera, renderTarget, forceClear ) {
+		
 		if ( ! ( camera && camera.isCamera ) ) {
 
 			console.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' );
@@ -2689,7 +2690,7 @@ function WebGLRenderer( parameters ) {
 
 	this.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer ) {
 
-		if ( ( renderTarget && renderTarget.isWebGLRenderTarget ) === false ) {
+		if ( ! ( renderTarget && renderTarget.isWebGLRenderTarget ) ) {
 
 			console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' );
 			return;