Animations Adri Jovin J.J. Assistant Professor Department of Information Technology Sri Ramakrishna Institute of Technology Coimbatore
Animations
Nov 18, 2014
This describes the basic concepts of Animation, especially for Under Graduate Students who are exposed to Computer Vision and Graphics.
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Animations
Adri Jovin J.J.Assistant Professor
Department of Information TechnologySri Ramakrishna Institute of Technology
Coimbatore
CS2401 - Computer Graphics 2
Animation Design Steps
• Storyboard Layout
• Object Definitions
• Keyframe Specification
• Generation of in-between frames
CS2401 - Computer Graphics 3
Storyboard
• Storyboard is an outline of the action
• Defines the motion sequence as a set of basic events that are to take place
CS2401 - Computer Graphics 4
Object Definition
• Object definition is given for each participant in the action
• Basic shapes, such as polygons or splines
• Associated movements for each object are specified along with the shape.
CS2401 - Computer Graphics 5
Keyframe
• Keyframe is a detailed drawing of the scene at a certain time in the animation sequence
• Each object is positioned according to the time for that frame
CS2401 - Computer Graphics 6
In-betweens
• In-betweens are the intermediate frames between the key frames
• Determined by the media to be used to display the animation– Film : 24 fps– Graphics Terminals : 30 to 60 fps
CS2401 - Computer Graphics 7
Other Tasks
• Motion Verification
• Editing and Production
• Synchronization of Sound Track
CS2401 - Computer Graphics 8
General Computer Animation
• Some steps in the development of an animation sequence are well-suited to computer solution.– Object Manipulation and Rendering– Camera Motions ( Zooming, Tilting etc..)– Generation of In-betweens– Store and Manage Object Database
CS2401 - Computer Graphics 9
Raster Animations
• On raster systems, we can generate real-time animation in limited applications using raster operations.
• Simple 2D/ 3D transformations
• Color Table Transformation
CS2401 - Computer Graphics 10
Key-frame Systems• Morphing
– Transformation of object shapes from one form to another
CS2401 - Computer Graphics 11
Morphing
CS2401 - Computer Graphics 12
References
• Donald Hearn, Pauline Baker, Computer Graphics – C Version, Second Edition, Pearson Education, 2004.
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