Diegetic perspective or gaze – is expressed how the audience is being asked to look at the content or subjects on screen by the director. (this is third person)
Intra-Diegetic gaze – is when the audience are put in the place of a character and seeing things from their point of view. (this is first person)
Extra-Diegetic gaze – when someone on screen addresses the audience directly by looking into the lens of the character, also known as breaking the fourth wall. (this is second person)