
312 Chapter 7
exercise solution
The HEX-IT-UP tub with six sides.
Which hot tub do you want to order?
Q:
A circle is just a polygon with
infinite sides? Have you gone a bit
philosophical or what?
A: Some math geeks get a bit upset
about this definition of a circle, but if you
could draw enough sides then you’d be
approaching a circle. The whole point of
infinity is that you never get there, but you
get close enough for this to be the basis of
computer graphics.
Q:
Computer graphics? Polygons?
How does that work?
A:
To show 3D curvy worlds, all video
games rely on triangles, which build into
polygons, which fool our eyes into believing
we’re seeing circles and curves.
Q: Ah! Yeah, when I’ve zoomed
in real close to something in a game
sometim ...