A mobile device , comprising: a display panel ; a camera adapted to capture an image; an orientation determination sensor; and a processor, the processor adapted to: receive orientation data from the orientation determination sensor, the orientation data indicating a determined orientation of the mobile device, select a luminaire category from a set of luminaire categories based on the determined orientation, each luminaire category associated with at least one orientation, select a virtual image of a luminaire fixture of the selected luminaire category from among a stored set of virtual luminaire images , generate an augmented reality image by combining the selected virtual image of a luminaire fixture of the selected luminaire category with the image captured by the camera, and control the display panel to display the generated augmented reality image ; wherein the mobile device further comprises a user input element adapted to generate output signals in response to user input commands, and wherein the processor is adapted to select a virtual image of a luminaire fixture by: selecting a subset of virtual luminaire fixture images of the selected luminaire category from among the stored set of luminaire fixture images, and selecting a virtual image of a luminaire fixture from among the selected subset on the basis of output signals from the user input element; and wherein the selected luminaire category corresponds to a particular category of possible mounting location for a luminaire fixture within a room, and the category of possible mounting location corresponds to a particular elevation category within a room. a display panel ; a camera adapted to capture an image; an orientation determination sensor; and a processor, the processor adapted to: receive orientation data from the orientation determination sensor, the orientation data indicating a determined orientation of the mobile device, select a luminaire category from a set of luminaire categories based on the determined orientation, each luminaire category associated with at least one orientation, select a virtual image of a luminaire fixture of the selected luminaire category from among a stored set of virtual luminaire images , generate an augmented reality image by combining the selected virtual image of a luminaire fixture of the selected luminaire category with the image captured by the camera, and control the display panel to display the generated augmented reality image ; receive orientation data from the orientation determination sensor, the orientation data indicating a determined orientation of the mobile device, select a luminaire category from a set of luminaire categories based on the determined orientation, each luminaire category associated with at least one orientation, select a virtual image of a luminaire fixture of the selected luminaire category from among a stored set of virtual luminaire images , generate an augmented reality image by combining the selected virtual image of a luminaire fixture of the selected luminaire category with the image captured by the camera, and control the display panel to display the generated augmented reality image ; selecting a subset of virtual luminaire fixture images of the selected luminaire category from among the stored set of luminaire fixture images, and selecting a virtual image of a luminaire fixture from among the selected subset on the basis of output signals from the user input element; and <EOS>