The invention provides a projector, which includes a set of at least two light source modules and / or signs, including motor vehicle, in which each module has an optical system with means for deflecting light beams (20) emitted by a light source (22) to form a primary beam of light toward the front of the vehicle. the addition of the primary beam forming output beam of an overall package. each module is mounted mobile in rotation to move laterally of the primary beam. a control device is able to develop, separately for each module, instruction control rotation of the optical system. the invention relates to a control method of a projector in which the rotation of one or more modules in order to achieve an adequate lighting to a driving status is determined on the basis of the analysis of the information of the road scene and / or vehicle.