A graphical mapping of how light is used in theatre

This treatise analysis what functions light has in theater. It was inspired by Rosalinda Krauss essay Sculpture in the Expanded Field but builds mostly on the following three books Linda Essig Lighting and the design idea (2nd ed), Nigel H. Morgan Stage lighting for theater designers and Francis Reid The stage lighting handbook (6th ed). It discovers nine unique functions of light (performance style, dramatic style, image,illumination, 3D space, 3D form, selectivity, environment, atmosphere) and develops a graphical mapping of them based on a mapping by Reid. The functions performance style, dramatic style, image are superior the others. Some light functions are more closely related than others and the different functions can easily be misunderstood. The functions performance style and dramatic style (or just style) are especially difficult to understand and map out. Environment and atmosphere are two functions that is in opposition to one another and it would be interesting to make an expansion around these set of terms by using Krauss theories