Light field

A light field is a complete description of all the light rays traveling in every direction through space at any given moment, capturing not just the brightness and color of light, but also the direction from which it's coming. Imagine taking a photograph that records not only what you see, but also the angle and path each light ray took to reach your camera—this kind of directional information is what distinguishes a light field from a regular image. This concept has become increasingly practical with modern technology, enabling applications like computational photography, 3D displays, and virtual reality systems that can create remarkably immersive visual experiences.