1. This paper describes the basic principles of traditional 2D hand
drawn animation and their application to 3D computer animation.

2. This paper aims to help animators avoid making bad animations due
to unfamiliarity with the fundamental principles for hand drawn
character

animation.

3. This paper solves the problem by describing the principles of tradition
animtation and explaining how to apply them to 3D animation.

4. Key points

(1). Squash and Stretch -- Defining the rigidity and mass of an object
by distorting its shape during an action.

(2). Timing -- Spacing actions to define the weight and size of objects
and the personality of characters.

(3). Anticipation -- The preparation for an action.

(4). Staging ,. Presentating an idea so that it is unmistakably clear.

(5). Follow Through and Overlapping Action -- The termination of an
action and establishing its relationship to the next action.

(6). Straight Ahead Action and Pose-To-Pose Action -- The two contrasting
approaches to the creation of movement.

(7). Slow In and Out -- The spacing of the inbetween frames to achieve
subtlety of timing and movement.

(8). Arcs -- The visual path of action for natural movement.

(9). Exaggeration -- Accentuating the essence of an idea via the design
and the action.

(10). Secondary Action -- The action of an object resulting from another
action,

(11). Appeal .- Creating a design or an action that the audience enjoys
watching.

(12). Personality. Applying all the above priciples intelligently
to achieve personality.

5. This paper describles the traditional animation principles and  explains
their applications in 3D animation.