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A back light sits behind the subject relative to camera and points toward it, drawing a bright edge that lifts the subject off the background. Push it further and the subject goes to silhouette; add haze or rain and it becomes the only light that lets you see the air in a scene.

backlight · hair light · kicker

Blue hour is the window before sunrise and after sunset when the sun is below the horizon and the only remaining daylight is scattered skylight, which arrives cool, soft and almost directionless. Its value is balance: for a short time the sky and the artificial lights in a scene sit at the same exposure.

twilight · civil twilight

Chiaroscuro is the use of strong contrast between light and dark to model form, usually built from a single hard source with little or no fill. The name is Italian for light-dark, and the technique moved from Renaissance painting into film noir and horror largely unchanged.

chiaroscuro lighting · light and shadow contrast

Cinematic lighting is not a single technique but a set of habits: one dominant direction, contrast that is allowed to go dark, sources that appear to come from somewhere in the scene, and light shaped so only part of the frame is lit. Crews rarely use the phrase; they name the specific technique instead.

lighting techniques · film lighting terms · filmic lighting

A fill light raises exposure on the shadow side of a subject without creating shadows of its own, which makes it the main control over contrast in a setup. It is measured against the key as a ratio, and taking fill away with black flags (negative fill) is as much a technique as adding it.

fill · bounce fill

God rays are visible shafts of light streaming from a bright source through gaps in something that blocks it, made visible because the air carries dust, smoke or moisture. The technical name is crepuscular rays, and the effect needs both a hard directional source and something suspended in the air to scatter off.

light shafts · crepuscular rays · sunbeams · light rays

Golden hour is the stretch just after sunrise and just before sunset when the sun sits low enough that its light travels through far more atmosphere, arriving warm, soft and strongly directional. Long shadows plus an open sky filling the shadow side are what make it read as flattering.

magic hour · golden light

The key light is the dominant source in a setup, the one that sets exposure and decides where every shadow falls. Its position controls the shape of a face, its size controls how hard the shadow edges are, and everything else in the setup is a response to it.

main light · key

A practical light is a working light source that appears in the shot itself, such as a table lamp, a candle, a neon sign, a television or a car headlight. It gives the audience a visible reason for the light in the frame, and on modern sets it often does much of the lighting as well.

practicals · motivated source

A rim light is the thin bright outline along the edge of a subject, produced by a source placed behind and slightly to the side. It only exists as a contrast effect, so it reads clearly against a dark background and disappears entirely against a bright one.

edge light · rimlight

Three point lighting is the standard setup built from a key light that establishes exposure and shadow direction, a fill light that controls how dark the shadow side goes, and a back light that separates the subject from the background. It is a starting scaffold rather than a rule, and plenty of finished work uses only one or two of the three.

3 point lighting · classic lighting setup

Volumetric lighting is light you can see travelling through the air, appearing as beams or shafts because particles of haze, smoke or dust scatter it back toward the camera. It needs three things at once: a source with a defined edge, something in the air to scatter, and a dark area for the beam to read against.

atmospheric lighting · light beam · visible beam