Technologies are generally described for a three dimensional user interface in augmented reality. In some examples, a method for generating a virtual object in a display area may include generating a first virtual object in the display area with use of at least two viewing cones generated by a display. The method may further include receiving spatial data that relates to a location of a real object in the display area and determining that the real object is interfering with at least one of the viewing cones. The method may further include generating a second virtual object corresponding to the first virtual object. The second virtual object may be located between the display and the location of the real object.