Optoelectronic apparatus includes a substrate and an array of light-emitting elements formed on a semiconductor die and mounted on the substrate, wherein the array includes at least first and second sets of the light-emitting elements. A controller is coupled to drive the first set of the light-emitting elements independently from the second set of the light-emitting elements. A first optical element is mounted on the substrate to receive light emitted from the array of light-emitting elements and to direct the received light toward the second optical element. A second optical element projects the light received from the first optical element so as to create a pattern.