For Jeremy Birn, a lighting technical director at Pixar Animation Studios, “cheating” with light occurs on a daily basis: “Cheating is performed, to some extent, on almost every project done in 3D. … Light on a character that appears to come from a lamp may actually come from a position far away from the lamp if it lights a character better.” For Jeremy, lighting and cinematography are arts and not sciences. No matter the lighting style, it only matters that the light be believable to the viewer. Thus, the most important requirement is that the image be internally consistent, e.g. showing a beam of direct sunlight brighter than the light of a task light or forming a shadow correctly.