Multi-dimensional gesture input to a computing device can be improved by providing a mechanism to lock or reduce the effects of motion in unintended directions. In one example, a user can navigate in two dimensions, then provide a selection action through motion in a third dimension. If a computing device analyzing the gesture is able to detect the selection action, the device can limit motion outside the corresponding third dimension in order to ensure that the proper selection action is performed. Various thresholds, values, or motions can be used to limit motion in one or more axes for any appropriate purpose as discussed herein.