COMP 1001: Introduction to Computers for Arts and Social Sciences Data Representation Wednesday, May 25, 2011.

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Presentation transcript:

COMP 1001: Introduction to Computers for Arts and Social Sciences Data Representation Wednesday, May 25, 2011

COMP 1001: Introduction to Computers for Arts and Social Sciences Bits and Bytes 4 bytes = 32 bits → 1 integer = a number up to 4,294,967,296

COMP 1001: Introduction to Computers for Arts and Social Sciences ASCII Code

COMP 1001: Introduction to Computers for Arts and Social Sciences ASCII Code

COMP 1001: Introduction to Computers for Arts and Social Sciences Text Compression The Rain Pitter patter Listen to the rain Pitter patter On the window pane

COMP 1001: Introduction to Computers for Arts and Social Sciences Text Compression

COMP 1001: Introduction to Computers for Arts and Social Sciences Text Compression

COMP 1001: Introduction to Computers for Arts and Social Sciences Text Compression

COMP 1001: Introduction to Computers for Arts and Social Sciences Babbage's Difference Engine anIyVGeWOI

COMP 1001: Introduction to Computers for Arts and Social Sciences Raster/Bitmap Graphics

COMP 1001: Introduction to Computers for Arts and Social Sciences Colour by Numbers a

COMP 1001: Introduction to Computers for Arts and Social Sciences Colour by Numbers 1,3,1 4,1 1,4 0,1,3,1 1,4

COMP 1001: Introduction to Computers for Arts and Social Sciences

Colour by Numbers Pros and cons of this approach?

COMP 1001: Introduction to Computers for Arts and Social Sciences Raster/Bitmap Graphics

COMP 1001: Introduction to Computers for Arts and Social Sciences Vector Graphics

COMP 1001: Introduction to Computers for Arts and Social Sciences The Difference Two versions of the same image. One is a raster image, the other vector.

COMP 1001: Introduction to Computers for Arts and Social Sciences Intro to 3D Graphics

COMP 1001: Introduction to Computers for Arts and Social Sciences Mathematical 3D Objects

COMP 1001: Introduction to Computers for Arts and Social Sciences Translation

COMP 1001: Introduction to Computers for Arts and Social Sciences Rotation

COMP 1001: Introduction to Computers for Arts and Social Sciences Scaling

COMP 1001: Introduction to Computers for Arts and Social Sciences 3D Games Have to Deal With: How much can the camera see?

COMP 1001: Introduction to Computers for Arts and Social Sciences 3D Games Have to Deal With: Should objects further away look smaller?

COMP 1001: Introduction to Computers for Arts and Social Sciences 3D Games Have to Deal With: Should objects further away look smaller? YES

COMP 1001: Introduction to Computers for Arts and Social Sciences 3D Games Have to Deal With: Should objects further away look smaller? NO

COMP 1001: Introduction to Computers for Arts and Social Sciences Let’s See Graphics in Action! “Big Buck Bunny” Movie created entirely by free, open source tools