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Learn about computer animation, its methods, and applications in entertainment, advertising, education, medicine, forensics, movies, and astronomy. Presented by Asan Baker Kanbar.
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Computer ANIMATIONS Presented by: Asan Baker Kanbar
Computer animation • Computer animation is the process used for generating animated images. • Modern computer animations usually uses 3D computer graphics, although 2D computer graphics are still in use.
Computer Animation Computer animation generally refer to any time sequence of visual changes in a picture. İn addition to changing object positions using translations or rotations,a computer animation could display time variation in object size, color, shape transparency, or surface texture.
Computer Animation We can olso generate computer animation by: • Varing camera parameters, such as position , orientation, or focal length. • Variations in lighting effects or other parameters and procedures associated with illumination • Rendering can be used to produce computer animation.
Computer Animation Another consideration in computer_generated animation is realism . Many applications require realistic displays. An accurate representation of the shape of the thunderstorm or other phenomena described with a numerical model is important for evaluating the reliability of the model.
The Basic Methods For Constructing a Motion There are two basic methods for constructing a motion sequence : • Real-time Animation. • Frame-by-frame Animation.
The Basic Methods For Constructing a Motion • Real-time Animation: In the real-time computer animation, each stage of the sequence is viewed as it is created thus the animation must be generated at a rate that is compatable with the constraints of the refresh rate .
The Basic Methods For Constructing a Motion • Frame-by frame Animation : In this method, each Frame of the motion is separately generated and stored. Later the frames can be recorded on film or they can be consecutively displayed on a video monitor in “real-time playback” mode.
Design Of Animation Sequences A basic approachto design such animation sequences using the following development stages . • Storyboard Layout. • Object Definitions. • Key-Frame specifications. • Generation of In-BetweenFrames.
Design Of Animation Sequences • Storyboard Layout storyboardis an outline of the action. It defines the motion sequence as a set of basic events that are to take place. Depending on the type of animation to be produced, the storyboard could consist of a set of rough sketches, along with a brief decribtion of the motions, or it could just be a list of the basic ideas for the action.
Design Of Animation Sequences Orgenally, the set of motion sketches was attached to a large board that was to present an overall veiw of the animation project .hence the name of “storyboard”.
Design Of Animation Sequences • Object Definitions An object definition is given for each participants in the action. Object can be defined in terms of basic shapes, such as polygons or spline surfaces. In addition a description is often given of the movements that are to be perfomed by each character or object in the story.
Design Of Animation Sequences • Key-Frame specifications key frame is a detailed drowing of the scene at a certain time in the animation sequence. Withen each key frame, each object (or character) is positioned according to the time squence for that frame. Some key frames are chosen at extreme positions in the action; others are spaced so that the time interval between key frames is not too much.
Design Of Animation Sequences More key frames are specified for intricate motions than for simple ,slowly varying motion. Developmemt of the key frames is generally the responsibility of the senior animators, and often a separate animators is assigned to each character in the animation.
Design Of Animation Sequences • Generation of In-BetweenFrames In-betweens are the intermediate frames between the key frames. The total number of frames, and hence the total numbers of in-betweens, needed for an animation is detemined by the display media that is to be used, Film rquires 24 frames per second.
Using of Computer Animations • Intertainment • Advertising • Education • Medicine • Forensics • Movies • Astronomy
Computer Animations Usage Fields • Intertainment The first thing we remember is the motion pictures and cartoons and the computer games.
Computer Animations Usage Fields • Advertising After using the computers for advertising many kinds of advertisings are producted and they had been more effective and useful .
Computer Animations Usage Fields Education Computer animations makes the education more exciting and easier to axplain the subjects by showing the examples done by using animated pictures.
Computer Animations Usage Fields • Medicine Computer animations brought great changes to medicine. It is widely used to show the body parts of the humen beyings.
Computer Animations Usage Fields • Forensics Cmputer animations widely used to liven up the accedents and get awatch of how the event had hapened.
Computer Animations Usage Fields • Movies In order to add special effects to the films the computer animations are the best way to do so.
Computer Animations Usage Fields • Astronomy Computer animations are very important to view the pictures captured by the spaceships.
