Non-uniform rational basis spline
1) Squash and Stretch
One of the most important principles of animation that gives a sense of weight and flexibility.
When squashing and stretching, an object’s volume does not change.
Anticipation prepares that audience for what is about to happen- the action.
This could be a person crouching down before they jump, or a character that looks off screen to anticipate another chracter’s arrival.
* Related to stage and film, staging has to do with the placement of characters or objects to best direct the audiences attention and clafiry what are the most important things to look at. Also, to make clear what is happening and what is about to happen.
* Can be used with the placement of the character, camera, or lighting in the scene.
* Focus on what is relevant and avoid unnecessary detail.
4) Straight Ahead Action and Pose to Pose
Drawing out a scene one frame after another verses posing out key action poses with key frames.
Straight ahead is more fluid and post to post is better for blocking out performance and emotion.
5) Follow Through and Overlapping Action
Separate parts of a character’s body will continue to move or follow through after the body comes to a stop.
Overlapping action relates to how different parts of a body tend to move at different rates.
Drag is a part of this technique where parts will lag behind and catch up with the rest of the body – such as clothing or hair.
Moving holds – retain life when a character is in a stopped position.
6) Slow In and Slow Out
Closer drawings to an extreme pose allow the object to ease/ slow into a pose and then out.
Things do not come to a sudden stop – usually they ease/slow into a position.
The most natural motion in life follows arcs – such as the way an arm swings or the trajectory of ball bounce.
Mechanical movement tends to move in straight lines.
8) Secondary Action