In a theatre, perspective is limited by the stage backdrop. It can be represented by the set (volumes, painted canvas, video) and provide vanishing points for the audience.
In public space, perspective is provided by the “depth” of the landscape, which can be more or less open depending on the site. Artists can play with the various landscape planes by moving the action further away or using different perspectives requiring the audience to turn their gaze or move around. By changing the position of the actors, the artist can draw the audience’s attention to a hill, a rooftop, balconies or a street, etc. These effects can emphasise a particular aspect or make it disappear into the landscape, and play with the perspectives and depth of the field of view.