introduction to animation
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BPC: Art and Computation – Summer 2007BPC: Art and Computation – Summer 2007
Introduction to AnimationIntroduction to Animation
Erik Brisson
ebrisson@bu.edu
BPC: Art and Computation – Summer 2007 2
Animation example - traditionalAnimation example - traditional
BPC: Art and Computation – Summer 2007 3
Animation example - traditionalAnimation example - traditional
BPC: Art and Computation – Summer 2007 4
History - Thaumotrope (~ 1825)History - Thaumotrope (~ 1825)
BPC: Art and Computation – Summer 2007 5
History – Folioscope (~ 1834)History – Folioscope (~ 1834)
Now known as a “flipbook”
BPC: Art and Computation – Summer 2007 6
History – Zoetrope (~ 1834)History – Zoetrope (~ 1834)
BPC: Art and Computation – Summer 2007 7
History – Phenakistoscope (~1833)History – Phenakistoscope (~1833)
BPC: Art and Computation – Summer 2007 8
History – Early days of filmHistory – Early days of film
1895 Auguste and Louis Lumiere, "Workers Leaving the Lumiere Factory in Lyon-Montplaisir“
1899 First magnetic recording of sound is achieved.
1908 Emile Cohl, "Fantasmagorie."
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Animation - TechniquesAnimation - Techniques
Stop-motion animation (puppets / objects / clay models)
Drawing and inking cel’sRotoscopingComputer-assistedComputer-generated
BPC: Art and Computation – Summer 2007 10
2D animation in 3D scene2D animation in 3D scene
Image sequence mapped onto object in scene
BPC: Art and Computation – Summer 2007 11
3D motion as animation - models3D motion as animation - models
BPC: Art and Computation – Summer 2007 12
3D motion as animation3D motion as animation
BPC: Art and Computation – Summer 2007 13
Animation - timingAnimation - timing
Speed of actionSynchronization of actionsSynchronization with sound– Sound track recorded first– Animation made to match sound
BPC: Art and Computation – Summer 2007 14
Animation – timing controlAnimation – timing control
Fixed speed projection– Film 24 fps– Video 30 fps– Computer graphics• 60, 72, 75 Hz refresh rate• Image redraw may not match this speed
How vary action speed?
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DAFFIE arp fileDAFFIE arp file arp 2.0 name playtime_seq geom_path ./ playspeed 10 sound_path ../configs/playtime/ frame geom_show playtime00.obj frame geom_show playtime01.obj frame geom_show playtime02.obj frame geom_show playtime03.obj frame geom_show playtime04.obj frame geom_show playtime05.obj
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More speed examples – 8 imagesMore speed examples – 8 images
BPC: Art and Computation – Summer 2007 17
12 Principles of Animation12 Principles of Animation Timing Ease In and Out (or Slow In and Out) Arcs Anticipation Exaggeration Squash and Stretch Secondary Action Follow Through and Overlapping Action Straight Ahead Action and Pose-To-Pose Action Staging Appeal Personality
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SummarySummary
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