02/05/2002
15-462 Graphics I
37
True Computer Animations
•Generate images by rendering a 3D model
•Vary parameters to produce animation
•Brute force
–Manually set the parameters for every frame
–1440n values per minute for n parameters
–Maintenance problem
•Computer keyframing
–Lead animators create important frames
–Computers draw inbetweens from 3D(!)
–Dominant production method