An apparatus including a processor configured to: obtain image data representing an object for being displayed to a user, wherein the object is displayed on the basis of left eye image data and right eye image data obtained on the basis of the image data; obtain user eye position data representing a left pupil position and a right pupil position of the user; and generate a left eye image position for the left eye image data and a right eye image position for the right eye image data on the basis of the user eye position data.