Patent attributes
Apparel is disclosed that can be worn to assist an interactive game in tracking the movement of the wearer. More particularly, the apparel may include one or more tracking marks formed of designs, patterns, or reflective materials that can be easily tracked by an interactive game employing one or more cameras or other detectors for detecting a change in position of an object. The apparel may take the form of, for example, hats, shirts, jackets, pants, gloves, and shoes. The apparel may use reflective materials, and the interactive game can employ a camera and a light source configuration where the camera is located within the observation angle of a player employing retroreflective materials reflecting light from the light source.