I need to animate dwarves and orcs shooting in multiple directions.
Let's start with south. First, I draw the crossbow loaded and ready to fire.
Problem: I don't have enough time to animate all the inbetween frames.
Solution: Smears to the rescue!
First, we draw the bow firing:
Next, we draw the bow being lowered to threaten foes once more:
None of those pictures look good. They don't have to. They aren't going to be visible for more than a tiny fraction of a second. Their goal is to convince the viewer that the animation is way smoother than it actually is.
I think they succeeded, don't you?