CSC151 2007S, Class 36: Randomized Images

Admin:
* Due: Exam 2
* EC for participating in Hoofin' It.
  * If you cannot afford the entry fee, I will pay it
  * But please be honest
* EC for Singers Concert @ 7:30
* EC for March of Dimes
* EC if softball ever plays at home, isn't rained out, and you attend
* EC for watching Tommy "play" Rugby on April 14 (you do not get extra
  credit for watching the traditional post-rugby activities)
* Homework 11 assigned: Write a parameterized procedure to draw something
  "interesting".
  * Emily wishes she could take 151 again just so she could do this
    assignment.  "It's a really cool assignment, you have to admit."
  * That statement probably confirms something you've suspected about Emily.
  * And something she admits.

Overview:
* Randomized Drawing - Some Theory.
* Randomized Drawing - Some Practice.
* Lab.

/Art in the Postmodern World/

* One theme - Decentralization of the artist
  * Works created without conscious effort are potentially interested
  * Works created in nature are potentially interesting
  * Works not created as art are potentially art
* Comes from the Dada movement (early 20th century)
  * Dada poetry - random selection of words
* Dada movement was also reacting to the spirit of the times
  * Opposition to the implicit class hierarchy in art
  * Opposition to facism
  * ...
* Some current movements in which artist designs process and a machine
  does the process to make the "art work"
* Randomness on the computer can be a tool
  * To inspire
* One current trend in digital art: Genetic art
  * Electric sheep

/Predictable Randomness in the GIMP/

* Any procedure that takes a number as a parameter can be made "random"
* Any procedure that takes one of a limited number of values can be made
  "random"
  * To select randomly from a list of objects
    (list-ref objects (random (length objects)))