Viewing I: the wonders of perspective

CS 248 - Introduction to Computer Graphics
Autumn Quarter, 2000
Marc Levoy
Lecture notes for Tuesday, November 7

Table of contents:

• Taxonomy of planar geometric projections
  • The invention of perspective
  • The taxonomy
  • Center of projection
  • Orthographic views
  • Oblique views
  • Perspective views
• Specifying a perspective view
  • Problems on the use of perspective in art
  • The viewing frustum
  • An intuitive specification method
  • glFrustum specification method
  • Comparison of formulations

If you want to play with the program I used in class to demonstrate:

• changing the field of view (zooming) versus
• changing the distance to the scene (dollying),

/usr/class/cs248/support/bin/iris4d/frustum /usr/class/cs248/data/Inventor/spheres.iv