Patent attributes
According to a first aspect disclosed herein, there is provided a controller for controlling at least one first luminaire to render lighting scenes in a first environment; the controller comprising: a first input for receiving a lighting sequence defining a first lighting scene to be rendered in the first environment at least until a trigger is received and a second lighting scene to be rendered in response to receiving said trigger in the first environment, thus replacing the first lighting scene; a second input arranged to receive data indicating user presence within the first environment; an output; and a processor arranged to: receive the lighting sequence via the first input; control, via the output, the at least one first luminaire to render the first lighting scene in accordance with the lighting sequence; receive an indication of the trigger and in response thereto, determine, based on data received via the second input, a user presence value within the first environment; and control, via the output, the at least one first luminaire to render the second lighting scene on condition that the determined user presence value does not exceed a predetermined threshold presence value.