Fixed webvr rollercoaster resize.

examples/webvr_rollercoaster.html

@@ -190,7 +190,7 @@
 				camera.aspect = window.innerWidth / window.innerHeight;
 				camera.updateProjectionMatrix();
 
-				renderer.setSize( window.innerWidth, window.innerHeight );
+				effect.setSize( window.innerWidth, window.innerHeight );
 
 			}, false );