A tracking method for tracking a target in a VR/AR system (1) having a tracker function for determining the position of the target, is disclosed, comprising obtaining a stream of images of the target, placing two or more markers (22) in determined positions on the target in the image said markers being arranged to follow the movement of the determined positions, detecting the movement of the markers between two images in the stream of images, if the detected movement is within a set of consistency criteria, determining the position of the target based on the detected movement, and if the detected movement is outside the set of consistency criteria, activating the tracker function. This reduces the computation power required for tracking.