chapter  9
Arcs and Anticipation
Pages 18

A lack of the use of arcs has mainly been the product of laziness on the part of the

animator. In traditional 2D animation, assistant animators find that it is much harder to

interpret the in-betweens on a curved path of action rather than in a straight line, as

conventional in-betweens would suggest. Similarly, lazy 3D animators prefer to let the

computer software decide the direction and placement of the in-betweens-which will

be automatically straight and predictable-rather than go in and adjust each one of the

in-between positions to enable the action to move more on the curve of an arc.