action vs. animation

free action                                         scripted
<--------------------------------------->
exploration                                         exposition

6DOF          constrain      anim    start/stop    animation
nav             nav               trans        "VCR"

*no* user control: animation conventions
[reading: Lasseter, Siggraph 87]
anticipation: foreshadow motion
slow-in, slow-out
exaggeration [abstraction choices]
staging [canonical views]
cuts/transitions
lines drawn on map vs. title