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# Animation

The MGED editor includes a number of features which are useful for developing animation tools and scripts. The full description of the current viewing transformation and eye position can be saved in a file, and such a previously saved view can be read back at any time, immediately changing the editor's view. In addition, the current viewing transformation and eye position can be appended to a file containing a collection of keyframes. Most importantly, a file full of keyframe information, either raw keyframe positions or smoothly interpolated keyframe sequences, can by ``played'' in real time using MGED, providing a powerful and fast animation preview capability.

As a separate animation capability intended for developing demonstrations and instructional material relating to the use of the MGED editor, all user interactions with the editor can be recorded in a file, along with an indication of the time elapsed between user actions. This file can be adjusted using a normal text editor to remove any errors, or to eliminate dead time where the user stopped to think. Once created, this session script can be replayed through the editor at any time, either to provide a smooth ``canned'' demonstration before a live audience, or to create a film or videotape.