Animation
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explanation of animation topic in multimedia compression and communication

explanation of animation topic in multimedia compression and communication

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Animation Presentation Transcript

  • 1. Animation Presentation byJhansirani.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 rapid display 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,
  • 5. Pictures in motion
  • 6. Pictures in motion
  • 7. Pictures in motion
  • 8. 2-D Animation• Two types 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 Cel stands 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 Moves an 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• A path 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 Special Effects• 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 image transforms 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 of Motion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. AnimationAnimation adds visual impact. Persistence of vision allows a series of separate images to blend together into a visual illusion of movement.
  • 18. Kinematics Kinematics is the 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 have taken 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 FormatsSoftware File FormatDirector .dir & .dcrAnimator Pro .fliStudio Max .maxSuper Card and Director .picsWindows Audio Video Interleaved .aviMacintosh .qt & .movMotion Video .mpegCompuServe .gifFlash .swfShockwave .dcr