ABSTRACT
In most situations, there’s one main identified source of light. For natural light, it will be the sun or the moon. The shadows cast by this light source are depth cues for recessed surfaces. The specular reflections on glossy objects are depth cues for surfaces facing the light source. Motion pictures allow us to express movement, based on our brain’s ability to process visual stimuli against time. The analysis reveals objects’ speeds and directions, as well as their placement in 3D space. It even helps us to generate 3D models of the objects shown on screen. We will explore the use of this limitation in a subsequent chapter on 3D cinematography dedicated to the stereoscopic window and depth real estate. Recent cinematography evolution leaned toward media range freedom, with ever more sound channels and pressure levels, high dynamic range imagery, and virtually unlimited camera movements.
