Definitions

I know - eewww, but I have to write this because Mr Andrew said so.

Definitions

Key Frames

Key frames are the important frames that define the start and end or major points of a small movement like heroically jumping from a broken bridge to the other side of the chasm to save the damsel in distress. probably a smaller movement than that, but I like my example. These frames are usually drawn by a key animator.

Tweens

Tweens are the in frames that go in between the key frames to create a fluid movement. without tweens the frames would just flash from one to the next without anything inbetween. The number of tweens drawn between the key frame dictate the length of time that the movement goes for, whether the movement is short of long. Tweens are usually drawn be teams of animationists.