When to Use Interpolation
You can use interpolation to simulate motion between key
points in which there is a continuous value that changes at the end
key point. You cannot use interpolation if you are simulating jumps in
motion.
For example, you can use interpolation to approximate motion using:
You must apply a motor 
, force 
, or gravity 
to move
mates through key points.
Using the interpolation method is useful for view orientation changes,
to avoid abrupt changes in motion.
