A material setting that enables you to specify surface relief on objects in your scene.
In rendering, it is the simulation of 3-dimensional surface detail effects created by altering the surface of the geometry. Displacement occurs along the surface normals according to the intensity of the pixels in the texture map.
A visual representation, similar to a traditional cell-animation timing sheet, that provides you with a way of moving keys, modifying timings, and activating and disabling effects over time.
In MotionBuilder, the Dopesheet window is an exploded view of the Action timeline in the Transport Controls window.