L

latency

The time during which the read/write heads wait for data to rotate into position after the controller starts looking for a particular data track.

layer

A level of animation in a scene, on top of the original function curve data. You can have multiple layers in a scene and make changes to one layer without affecting the others.

See also BaseAnimation Layer .

legacy

A term used to describe workflows that, while still functional, are rendered obsolete by changes made to the MotionBuilder user interface.

See also BaseAnimation Layer .

Linear key

A luminance key effect in which the gain of the key is approximately one. This preserves the shaping of the key source edges produced by anti-aliased character generators and digital video effects devices.

See also luminance key .

local blend

The process of replacing the motion in one track with motion from another track on only part of a hierarchy.

local coordinates

Values that define a location relative to the origin of a selected object, in the format (X, Y, Z).

See also global coordinates , X-coordinate , Y-coordinate , and Z-coordinate .

local keying group

A custom keying group that describes the set of properties for an object in 3d space that will be captured when a keyframe is created for that object in an animated scene. Local keying groups can only be assigned to the object(s) selected at the time the keying group was created.

look at point

See camera interest .

loop

The area of a take that is designated to continuously play when you click Play in the Transport Controls.

luminance

The luminous intensity of a video signal. The color picture information contains two components: luminance (brightness and contrast) and chrominance (hue and saturation). Probably should remove reference to luminance within definition.

See also chrominance .

luminance key

A key effect in which the portions of a key source that are greater in luminance than the clip level cut a hole, or key, in the background video.

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