A Bump object uses a bitmap image to define a 'height transformation' to its output channel. This transformation is computed is such a way that, when assigned to the 'Bump normal' channel, the surface appears bumpy. The controls of a bump map are:

Animation tab: This tab includes controls needed when using an animated image sequence for defining the bump map (or any other texture map type). This means that the program automatically loads a new bump map in every rendered frame.

[Note] Note
Automatic texture indexing changes the index in every frame, field and motion sample, so that texture animations are motion blurred as well. Other kind of behavior can be defined by animating the texture index by key framing. The choreography window makes it possible to modify the animated indexing in a highly flexible manner: the index curve can be point edited, the time line can be moved in time, scaled, repeated, etc.