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Animation
Animation involves rapidly displaying a sequence of images to create the illusion of movement. There are two main types of animation: cel animation which changes images from one frame to the next, and path animation which moves an object along a predetermined path. 3D animation involves modeling objects, defining their motion, and rendering to add attributes like color. Computer animation employs the same principles as traditional cel animation by setting frame rates and using techniques like morphing, warping, and virtual reality.
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Animation
- 1. Animation Presentation by Jhansirani.R Assoc.prof/ECE
- 2. Introduction • 50 years ago Walt Disney created animated objects such as Mickey Mouse.
- 3. Animation on Internet •Animation is an excellent way to provide appeal on a web site Animated text - using the HTML <blink> command causes text to flash on and off Animated GIF’s - using a software program to create a series of gif files such as GIF Builder Macromedia Director applications - animation played using Shockwave plug-in
- 4. Animation Animation is the rapiddisplay of a sequence of images to create an illusion of movement. The word “animation” is a form of “animate,” which means to bring to life. Thus when a multimedia developer wants to bring an image to life,
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- 8. 2-D Animation • Twotypes of animation exist Cel animation – based on changes that occur form one frame to the next Path animation – moves an object along a predetermined path on the screen
- 9. Cel animation Celstands for celluloid which is a clear sheet with images drawn on them. The celluloid images are place on a background that is usually stationary. The background remain fixed as the images changes. This animation moves at 10 frames pe
- 10. Path Animation Movesan object along a predetermined path on the screen The path can be a straight line or have a number of curves. Starts with keyframes (the first and last frame of an action). The series of frames in between the keyframes are drawn in a process called tweening.
- 11. Path animation • Apath animation controls the position and rotation of an object along a curve.
- 12. 3-D Animation • 3-D Animation involves three steps 1) Modeling – creating the broad contours and structure of 3-D objects and scenes 2) Animation – defining the object’s motion 3) Rendering – giving objects attributes such as color, surface textures, and amounts of transparency
- 13. 3-D Animation SpecialEffects • Morphing – blending together two images into a series of images • Warping – distorts a single image • Virtual Reality – creates an environment that surrounds the user so that he or she becomes part of the experience
- 14. Morphing Where one imagetransforms into another Software: Avid’s Elastic Reality, Black Belt’s WinImages, Gryphon Software’s Morph, Human Software’s Squizz, MorphWizard, Unlead’s MorhStudio
- 15. The Power ofMotion Visual effects such as wipes, fades, zooms, and dissolves are available in most authoring packages. But animation is more than wipes, fades, zooms, and dissolves. Until Quick Time and AVI motion video became more common place animations were the primary
- 16. Principles of Animation Animation is possible because of a biological phenomenon known as persistence of vision and The psychological phenomenon called phi An object seen by the human eye remains chemically mapped on the eye’s retina for a brief time after viewing. Combined with the human mind’s need to conceptually complete a perceived action.
- 17. Animation Animation adds visualimpact. Persistence of vision allows a series of separate images to blend together into a visual illusion of movement.
- 18. Kinematics Kinematics isthe study of the movement and motion of structures that have joints, such as a walking man. Need to calculate the position, rotation, velocity, acceleration of all the joints and articulated parts – knees, bend, hips flex, shoulders swing, head .
- 19. Computer Animation Typically employees the same logic and procedural concepts as cel animation You can usually set your own frame rate At 15 frames a second the animation may appear jerky and slow
- 20. Animation and Frame Rates TV video builds 30 entire frames or pictures every second. Movies are shot at a shutter rate of 24 frames per second, but using projections tricks the flicker is increased to 48. On some projectors each frame is shown 3 times before the next frame, for a total of 72 flickers
- 21. Animation Techniques Computers havetaken a great deal of handwork out of the animation and rendering process. And commercial films have utilized the power of the computers. Jurassic Park, Beauty and the Beast, Toy Story, Avatar
- 22. Animation File Formats Software File Format Director .dir & .dcr Animator Pro .fli Studio Max .max Super Card and Director .pics Windows Audio Video Interleaved .avi Macintosh .qt & .mov Motion Video .mpeg CompuServe .gif Flash .swf Shockwave .dcr