Introduction • 50 years ago Walt Disney created animated objects such as Mickey Mouse.
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
AnimationAnimation 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,
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
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
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.
Path animation• A path animation controls the position and rotation of an object along a curve.
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
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
MorphingWhere one image transforms into anotherSoftware: Avid’s Elastic Reality, Black Belt’s WinImages, Gryphon Software’s Morph, Human Software’s Squizz, MorphWizard, Unlead’s MorhStudio
The Power of MotionVisual 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
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.
AnimationAnimation adds visual impact. Persistence of vision allows a series of separate images to blend together into a visual illusion of movement.
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 .
Computer AnimationTypically employees the same logic and procedural concepts as cel animationYou can usually set your own frame rateAt 15 frames a second the animation may appear jerky and slow
Animation and Frame RatesTV 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
Animation TechniquesComputers 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
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