animation theory
DESCRIPTION
Animation Theory. What is Animation?. Animation is the creation of simulated movement by using a series of still images. Animation is used to produce special effects in commercials, live-action movies, video games and web sites. Zoetrope. Pronounced (ZO-uh-trope) - PowerPoint PPT PresentationTRANSCRIPT
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Animati
on
Theory
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What is Animation?• Animation is the creation of simulated
movement by using a series of still images.
• Animation is used to produce special effects in commercials, live-action movies, video games and web sites
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Zoetrope• Pronounced (ZO-uh-trope)• A toy created in the 1800’s that
used a cylinder and long strip of paper with a series of images
• When the cylinder was rotated, the images could be viewed through slits in the cylinder and the images appear to move
• The Zoetrope led to the development of motion pictures
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ZOETROPE EXAMPLEShttp://youtu.be/5khDGKGv088
http://www.youtube.com/watch?v=5khDGKGv088
http://www.youtube.com/watch?feature=endscreen&NR=1&v=ClIZ_QjNX60
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Flip Book• A flip book is a simple animation
device• It consists of a sequence of drawings
placed on top of each other fastened together along one edge
• Each drawing is slightly different from the drawing before
• The image appears to move because the eye sends signals to the brain faster than the brain can process them. This is called Persistence of Vision
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FLIP BOOK EXAMPLEhttp://www.youtube.com/watch?v=FH97UerMW6I
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Types of Animation
• Hand-drawn Animation• Stop-motion Animation• Computer animation• Motion-capture animation
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• In this type of animation, a series of drawings is photographed
• Each drawing makes up one frame of the film• The position of the character or object
changes very slightly from frame to frame• This technique is known as cell animation
because the first animations were drawn on thin plastic sheets called celluloid
• In 1937, Walt Disney released Snow White and the Seven Dwarfs, the first full-length animated film using cell animation
Hand-drawn Animation
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Stop-Motion Animation• In Stop-Motion Animation,
models are photographed on a set one frame at a time.
• The frames are played in sequence to create movement
• Early stop-motion models were made of modeling clay (ex. Gumby)
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Computer Animation• Computer Animation
software can be used to create an animation scene, cartoon, a video game, or even a full-length movie
• Computer Animation reduces the time needed to produce an animated film
• Software can be two-dimensional (2D) or three-dimensional (3D)
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Motion Capture Animation• Motion Capture
Animation is a 3D representation of a live performance
• It can be done using 3 different technologies:MagneticOpticalElectro-Mechanical
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Magnetic Motion Capture• Magnetic motion capturing uses
sensors placed on an actor’s body that measure magnetic fields created by a transmitter
• The files are then represented in 3D by a computer
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Optical Motion Capture• Optical motion capturing uses
video cameras to track the motion of light-emitting diodes or reflective markers placed on the joints of the actor’s body
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Electro-mechanical Capture
• Electro-mechanical devices resemble an exoskeleton that is worn by the actor being recorded. The exoskeleton’s movements are recorded without any additional sensors
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Storyboards• A storyboard is a series of
sketches that can be used as a guide for making a show.
• A typical full-length animated feature requires more than 4,000 storyboard drawings to describe the action and dialogue of the film
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Modeling
• Once a storyboard is created, the modeling process begins
• Modeling refers to using computer software to create 3D computer models of characters, props, and sets
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Animation• Once models are created, animation may begin• A key frame show a beginning or ending point in
an action sequence• Imagine a scene showing tow characters playing
catch with a ball. The key frames might show each character either throwing or catching the ball. The frames in between determine how fast the ball is thrown, how many times the ball goes back and forth, and how long the game continues
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Shading, Lighting, and Rendering• Shading adds colors and textures to
objects. Examples include: simulated glass, wood, and metal
• Lighting is used to add illumination and shadows to scenes
• Rendering combines computer information from the modeling, animation, shading, and lighting steps to create the final images
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STOP
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Web Sites• Animation can be added to any website to add
interest• GIF animation was the first successful kind of
animation used on the web• GIF stands for Graphics Interchange Format• GIF files are still images that can be animated using
software• This is a popular way to store and distribute
animations• GIF files work well with web browsers
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Other Web Sites Enhancements• When Dynamic HTML is used, one still
image is moved across the screen instead of using individual frames
• Several Web animations require plug-ins• Plug-ins are small programs designed to
play particular media files• QuickTime and Windows Media Player are
common video plug-ins
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Other Web Sites Enhancements• Streaming Animation allows the
movie to begin playing before the entire file has downloaded
• Flash is the most popular Web animation program
• Flash can be used to produce high-quality animations and videos
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Video Games• Video game development is the most complex
form of animation• A key difference between video games and movie
animation is video games need to be interactive; they need to respond to commands given by players
• Video games start with a storyboard• Artists, programmers, and marketing experts plan
for how the game will look and create different levels of difficulty