Week 12 tutorial
Question 1
This question was contributed by Daniel Lambert, age 8.
How can you tell that the image on the cover of the 2nd edition of the text book (click to enlarge) is not
a photograph of a real scene?
Question 2
You are applying for a job as a computer graphics expert working for Microforte (an Australian games company). In their employment exam, it asks what modelling and rendering techniques you would use to model the following:
- A teapot (this is required by tradition).
- A barrel.
- The same barrel after it has been shot through with a weapon, leaving a circular hole.
- A fancy-looking exhaust on a flying motorcycle. The cross section stays the same shape, but it “flares” out at the end
- A marble pillar. The base and top are square, but the midsection is a circle.
- The carapace (i.e. the hard head covering) of an organic-looking robot like the hard shell of the evil alien in the Alien series of movies.
Discuss how you model the shape of these objects as well as how you would implement the surface of these objects. What techniques would you use to model the surfaces in the above cases?
Question 3
This question is from the COMP3421 exam in 2000.
SOCOG (Sydney Olympic Games Organizing Committee) wants you to build a virtual guide for the electronic information kiosks at the Olympic site. They want users to be able to look and walk around a 3D model of the Olympic site at Homebush Bay. They want people who have purchased tickets to be guided (in the model) to their seats so they can see how to get there.
Tell me (using diagrams where appropriate)
- what hardware your system would use,
- what software and rendering algorithms,
- how you would model the Olympic site,
- and how a user would interact with your system.