Added skybox to webvr_sandbox.

examples/webvr_sandbox.html

@@ -40,8 +40,13 @@
 
 			function init() {
 
+				var background = new THREE.CubeTextureLoader()
+					.setPath( 'textures/cube/MilkyWay/' )
+					.load( [ 'dark-s_px.jpg', 'dark-s_nx.jpg', 'dark-s_py.jpg', 'dark-s_ny.jpg', 'dark-s_pz.jpg', 'dark-s_nz.jpg' ] );
+				background.format = THREE.RGBFormat;
+
 				scene = new THREE.Scene();
-				scene.background = new THREE.Color( 0x101010 );
+				scene.background = background;
 
 				camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 0.1, 10 );
 				scene.add( camera );