A curve that alters the shape of a function curve and changes the timing of an animation.
See also function curve .
A course along which something moves, or a sequence of events through time.
In MotionBuilder, there are two types of tracks. In the Motion Blend window, tracks can contain motion data and let you blend takes into a single result track. In the Story window, tracks can contain motion data, keyframe animation, audio and video, and let you blend specific types of clips along the timeline.
A material property setting that defines the level of opacity for a material.
The level of visibility of an object determined by the opacity setting. When the opacity is set to 0%, the object is transparent.
The ratio of the amount of light passing through a material to the amount of light incident on the material.