Make Background light up to simulate Lights ON

[victor.back]

Hi.

I wonder there´s a way of making the Background image to light up from the status of a light group?
I´m thinking like, if I sets a kind o filter over a specific area of my background?

This so I  can illustrate a 2D floorplan to "light up" the rooms when a light is on.

Is this possibly in Visualization with CSS or Javascript or other way?