12 Principles of Computer Animation Amy Gooch AA3: Animation
Copyright "Illusion of Life: Disney Animation" by Ollie Frank/Johnson Thomas
12 Principles of Animation Created by Disney Studios in 1930s –Snow White (1937) –Pinocchio & Fantastia (1940) –Dumbo (1941) –Bambi (1942)
Really about… Performance –Directing Performance –Representing reality –Interpreting real world physics –Editing sequence of actions
Squash and stretch Copyright "Illusion of Life: Disney Animation" by Ollie Frank/Johnson Thomas
Squash and stretch Copyright ©1999 Michael B. Comet All Rights Reserved. Copyright "Illusion of Life: Disney Animation" by Ollie Frank/Johnson Thomas
Anticipation Top: move simply Bottom: anticipates motion before moving, broadcasting what is about to happen Copyright ©1999 Michael B. Comet All Rights Reserved.Copyright "Illusion of Life: Disney Animation" by Ollie Frank/Johnson Thomas
Anticipation Bad Jump: no anticipation Good Jump: crouch first, then jump Copyright ©1999 Michael B. Comet All Rights Reserved.
Staging Copyright "Illusion of Life: Disney Animation" by Ollie Frank/Johnson Thomas
Staging Bad SilhouetteGood Silhouette Copyright ©1999 Michael B. Comet All Rights Reserved.
Two Animation Techniques for Action Pose-to-Pose Straight-ahead (Ex: Ryan by Chris Landreth) Copyright "Illusion of Life: Disney Animation" by Ollie Frank/Johnson Thomas
Action, pt 2 Follow-thru Action Overlapping Action Copyright "Illusion of Life: Disney Animation" by Ollie Frank/Johnson Thomas
Follow-thru Action Balls Top: No Follow thru Bottom: Follow thru Arm Rotates with follow thru Hand continues past stop position, then falls back in place Copyright ©1999 Michael B. Comet All Rights Reserved.
Follow-thru Action Watch the antenas Copyright ©1999 Michael B. Comet All Rights Reserved.
Movement: Slow-in and Slow-out The ball in the right eases in/out at the top; looks smoother and more natural The ball on the left moves at a constant speed; looks abrupt Copyright ©1999 Michael B. Comet All Rights Reserved.
Movement: Slow-in and Slow-out Good, with ease More natural, fluid Bad, No ease Very Robotic Copyright ©1999 Michael B. Comet All Rights Reserved.
Movement: Arcs Copyright "Illusion of Life: Disney Animation" by Ollie Frank/Johnson Thomas
Arcs Bad, Linear ballGood, Arc ball Copyright ©1999 Michael B. Comet All Rights Reserved.
Arcs: Head Turn Bad, LinearGood, Arc Copyright ©1999 Michael B. Comet All Rights Reserved.
Secondary Action Copyright "Illusion of Life: Disney Animation" by Ollie Frank/Johnson Thomas
Timing
Timing Head Turn 60 Frame –Looks like stretch 30 Frame –Looks like “no no no” 5 Frame –Looks like he got hit Copyright ©1999 Michael B. Comet All Rights Reserved.
Exaggeration Bad Good Copyright ©1999 Michael B. Comet All Rights Reserved.
Solid modeling and rigging (solid drawing in 1930s) Copyright "Illusion of Life: Disney Animation" by Ollie Frank/Johnson Thomas
Character Personality
12 Principles of Animation Squash and Stretch Anticipation Staging Follow-thru and Overlapping Action Straight-ahead and Pose-to-Pose Slow-in and Slow-out Arcs Secondary Action Timing Exaggeration Solid Modeling and Rigging Character Personality
A few more…
Visual Styling
Blend Motion Cartoon physics Realistic cartoon Realistic human Rotoscoping
Cinematography Lighting Composition Squencing
Facial animation More subtle controls in CG Decide early on level of control
User-controlled animation Games allow user intervention Built-in anticipation Branch smoothly between action shots
Animation Examples Siggraph 2004 DVD
Credits /prin_trad_anim.htmhttp:// /prin_trad_anim.htm Kerlow’s Book Jessica Hodgin’s Notes (animations)