EquirectangularToCubeGenerator: Clean up.

examples/js/loaders/EquirectangularToCubeGenerator.js

@@ -11,6 +11,8 @@ THREE.CubemapGenerator = function ( renderer ) {
 
 THREE.CubemapGenerator.prototype.fromEquirectangular = function ( texture, options ) {
 
+	options = options || {};
+
 	var scene = new THREE.Scene();
 
 	var shader = {
@@ -86,8 +88,6 @@ THREE.CubemapGenerator.prototype.fromEquirectangular = function ( texture, optio
 
 	scene.add( mesh );
 
-	options = options || {};
-
 	var resolution = options.resolution || 512;
 
 	var params = {