Handle damping when switching cameras

examples/webgl_materials_channels.html

@@ -274,15 +274,16 @@
 
 					case 'perspective':
 						camera = cameraPerspective;
-						controlsPerspective.update();
 						break;
 					case 'ortho':
 						camera = cameraOrtho;
-						controlsOrtho.update();
 						break;
 
 				}
 
+				controlsPerspective.update();
+				controlsOrtho.update(); // must update both controls for damping to complete
+
 				renderer.render( scene, camera );
 
 			}