Practical 6 (Week 7).

Before you continue with your task work, you should complete the OpenGL prac work below.
If need be, go through your text book and the lecture notes to catch up with the OpenGL programming we have covered so far...

Don't copy the code from the samples straight away, but only use it if you get stuck.

Main Source Code Directory

World Windows

Lecture 12 code (changing the world window).

• Modify the code above to pan the window left and right instead of zooming in and out.
• Get it to be interactive so that the user can use the arrow keys to pan the window and the keys : a = zoom in, z = zoom out.

Transformations

• Make your own function to draw a simple, non-symmetrical object, such as the house of chapter 5, and then add code to your program to be able to do the following transformations on it:
  • s = scale - double the size
  • S = scale - halve the size (shift + s)
  • r = rotate - by 45 degrees CCW
  • R = rotate - by 45 degrees CW
  • t = translate - right by half the distance to the edge of the screen
  • T = translate - left by half the distance to the edge of the screen