Method and apparatus for providing feedback to a user input

A computer implemented method for providing feedback to a user input. The method includes obtaining data representing a scene model derived from scene data representing a scene in real space; obtaining data representing a user input identifying a first portion of the scene in real space; estimating, based on the user input data, a first position within the scene model corresponding to the first portion of the scene; determining control information for controlling a light source to direct light at or near a second position in real space corresponding to the first position within the scene model; and outputting the control information to control a light source, thereby to provide for feedback to the user input. The method may be implemented by a robot.