The 3D viewer of Bubble 3D allows user interaction with the model. Various actions may be performed using the toolbar at the top of the viewer:



In order to rotate the model, hold down the middle button of the mouse (i.e. scroll wheel), and move the mouse to rotate the scene. If that does not work on your mouse, click on the "3D Rotate" button from the toolbar (see above) and move the mouse to your desired view.