The invention relates to the controlling of a lighting system with a plurality of light sources, particularly to the semi-automatic commissioning of light sources of the lighting system or controlling of the creation of lighting scenes with the lighting system. A basic idea of the invention is to use a spatial coding of light for controlling a lighting system, particularly for commissioning of light sources of the lighting system instead of or in addition to the temporal light coding as applied in the prior art. An embodiment of the invention relates to a system for controlling a lighting system with a plurality of light sources (1, 2) comprising a light system controller (5) for controlling the light sources in that a spatial light pattern (11, 12, 21, 22) is created, which codes one or more attributes (512) of the light sources (511), and a light pattern capturing device (3) for capturing the created spatial light pattern and communicating (32, 52) with the light system controller (5) in order to enable the controlling of the one or more light sources based on the captured spatial light pattern. A spatial coding is particularly suitable for wallwasher light sources, and thus especially assists personnel in commissioning wallwasher light sources of a lighting system.