1. Computer Animation Prepared by Khadija Kuhail Supervised by Dr Sanaa Alsayegh

2. What is Computer Animation? Animate = “to give life to” Specify, directly or indirectly, how ‘thing’ moves in time and space Anything to do with visual representations on a computer Includes 2D graphics and 3D graphics modeling and rendering The term Computer Graphics was created by William Fetter of Boeing in 1960

3. Persistence of vision: discovered about 1800s – Zoetrope or “wheel of life” – Flip-book

4. SketchPad: first interactive graphics (1961) Spacewars: first computer graphics game (MIT 1961) Whirlwind: early graphics using VectorScope (1951) first CAD system (IBM 1959)

5. Computer Graphics Image Synthesis Generate Images (Realistic or not) Animation Generate Motion (Realistic or not) Image Processing Manipulate Images

6. Computer-assisted animation – 2D & 2 1/2 D – Inbetweening – Inking, virtual camera, managing data, etc Computer generated animation – Low level techniques Precisely specifying motion – High level techniques Describe general motion behavior

7. 1.Modelling: creating and representing the geometry of objects in the 3D world 2.Rendering: creating a image in 2D of these objects 3.Animation: describing how objects change in time

11. Describes the motion algorithmically Example: a clock with second, minute and hour hands – hands should rotate together – express the clock motions in terms of a “seconds” variable – the clock is animated by varying the seconds parameter Types of Animation

12. Assign physical properties to objects (masses & forces) Simulate physics by solving equations Realistic but difficult to control v0v0 mg Types of Animation

13. Usually uses optical markers and multiple high-speed cameras Triangulate to get marker 3D position Faces or joints Captures style and realism You must observe someone do something

14. Computer Aided Design (CAD)

15. Visualization (Scientific, Information ) DNA visualization

16. Medical Visualization 3D MRI

17. Entertainment (animation, games, …) Geographic Information Systems (GIS) …

18. Thank you

19. What are the three main Tasks in Animation?