Docstoc

University of Palestine College of Information Technology

Document Sample
University of Palestine College of Information Technology Powered By Docstoc
					Computer Animation

      Prepared by Khadija Kuhail
    Supervised by Dr Sanaa Alsayegh
  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
• Persistence of vision: discovered about
  1800s
  – Zoetrope or “wheel of life”
  – Flip-book
Whirlwind: early graphics using VectorScope   Spacewars: first computer graphics game
                   (1951)                                    (MIT 1961)




      first CAD system (IBM 1959)             SketchPad: first interactive graphics (1961)
                        Computer
                        Graphics




Image Synthesis                             Animation
 Generate Images                          Generate Motion
 (Realistic or not)                       (Realistic or not)


                      Image Processing
                      Manipulate Images
• 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
• Modelling: creating and representing the
  geometry of objects in the 3D world

• Rendering: creating a image in 2D of these
  objects

• Animation: describing how objects change in
  time
 Types of Animation

• 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

• Assign physical properties to objects
  (masses & forces)
• Simulate physics by solving equations
• Realistic but difficult to control
      v0
m                 g
• 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
• Computer Aided Design (CAD)
• Visualization (Scientific , Information )




   DNA visualization
• Medical Visualization




                          3D MRI
• Entertainment (animation, games, …)
• Geographic Information Systems (GIS)
• …
Thank you
What are the three main Tasks in
 Animation?

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:0
posted:5/21/2014
language:English
pages:19
jiang lifang jiang lifang
About