Computer Graphics Part 2 (Object Representations)

Home > Flashcards > Print Preview

The flashcards below were created by user simon123 on FreezingBlue Flashcards. What would you like to do?

  1. What is the problem in CG object representation?
    What is the demand/need?
    • Real world is continuous and infinte
    • Computers represent things desicretely and resources are finite
    • need compact object representations that allows -> 1. quick loading 2. quick rendering
    • (Demand for continuous smooth surfaces that are easy to control)
  2. Object representation approaches (list all 3)
    • Parametric surfaces
    • Metaballs
    • Mesh structures (Polygon format, triangle strip, triangle fans; Quad mesh)
  3. Disadvantages (2) of increasing the degree of a parametric curve / explain alternative way/solution?
    • 1. Not easy to control
    • 2. Requires more computation

    solution: concatenate, which means subdividing curves into sections (each of which has its own low order/degree parametric equation)
  4. Problem with parametric curves?
    Difficult to render objects that have a dynamically changing topology, i.e. blobby objects like liquid, clay etc.

Card Set Information

Computer Graphics Part 2 (Object Representations)
2013-04-25 23:42:53
computer graphics informatics science

University of Edinburgh School of Informartics Computer Graphics (Level 10) Revision Cards created by Simon M.
Show Answers:

What would you like to do?

Home > Flashcards > Print Preview