Basics Of Computer Animation

Outline

Outline

Animation and animation types

Traditional animation Disney

Computer role in animation

Computer animation techniques

2D vs. 3D

Object models

Motion models Animation

Animation is produced by the rapid display of consecutive still images

Minimum frame rate (humans) for smooth transitions is about 15 Hz.

For film/TV, 23 Hz to 30 Hz is normal.

For a smooth visual effect, higher frame rates may be necessary, and timing of frame displaying is important.

Types of animation:

Hand-drawn

Stop motion

Animatronics

Performance animation (mocap)

Virtual models

Effects

Early animation:

Early realanimation:

creating each frame of a real scene by hand = stop motion animation.

Example: King Kong (1933),

hybrid of animatronic and stop motion animation.

Timing

Timing is the speed of an action

Timing helps define an action (see example previous slide)

Proper timing is critical to make the audience understand an action: time the phases

(anticipation/action/reaction) so that the action is understood (not too short!) without losing attention (not too long!)

Timing defines weight of objects (including

characters)

Anticipation

Often anatomical necessity; no anticipation gives an unnatural movement

Prepares audience for an action -you know what is going to happen

Draws the attention action is not missed and can be faster

by: aymenbnr

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