NiBSAnimationManager возможно производное от AnimationManger (который есть в справке).
Выдержка из оригинальной справки. NDL Gamebryo 1.1
Где проходит как:
A utility class for managing animations. The base implementation operates on the assumption that there is one NiKeyframeManager (and therefore one animated object) per animation manager. The class contains a subclass that holds information pertaining to sequences that the animation manager deals with. This class, AM_SequenceInfo, contains a pointer to the sequence, the cycle type (looping or clamped), a pointer to a function that will be called on completion of a clamped animation, both a void pointer and unsigned int to be used as context values in the callback, and the start and total times for the sequence.
Sequences are added from keyframe files that are loaded during initialization. Once loaded, the application can set the cycle type, the callback function and the context for each sequence. It is important to note that the application itself must have knowledge of the sequences loaded for setting this information.
