1. A computer interface system comprising: a. At least one camera operable to create an image of a wand handled by a user, the wand comprising a plurality of features; and b. A processing module operable to receive the created image of the wand and determine the pose of the wand based on the features of the wand, the pose of the wand comprising a position of the wand, an orientation of the wand and a twist of the wand, wherein the determined pose of the wand is used to control a user application.