In lighting design, what does 'fade time' refer to?

'Fade time' refers to the time it takes to smoothly transition lighting levels, either increasing or decreasing the intensity of lights. This concept is crucial in lighting design because it impacts the mood and atmosphere of a performance. A gradual fade can create dramatic tension or signify a change in scene, whereas an abrupt change might disrupt the flow of the narrative or emotional connection for the audience.

The other options do not relate to the technical aspects of lighting design. The duration of the performance refers to how long the entire show lasts, which is unrelated to the mechanics of lighting changes. The time actors take to enter the stage is concerned with the timing of performances rather than lighting adjustments. Lastly, the length of a rehearsal session pertains to the overall preparation for a performance, rather than the specific timing of lighting modifications. Therefore, understanding fade time is essential for achieving effective lighting transitions that enhance the storytelling and visual experience within a theatrical production.