Mathematical Topics from 3D Graphics - 3D Math Primer for Graphics and Game Development - page 476

10.13 Exercises

(Answers on page 779.)

1. On the Nintendo Wii, a common frame buffer resolution is 640×480. This
same frame buffer resolution is used for 4:3 and 16:9 televisions.

(a) What is the pixel aspect on a 4:3 television?

(b) What is the pixel aspect on a 16:9 television?

2. Continuing the previous exercise, assume we are making a split-screen co-
operative game, and we assign one player the left 320×480, and the other
player the right 320×480. We always want the horizontal field of view to
be 60 o . Assume the system settings tell us that the console is connected to
a 4:3 television.

(a) What is the window aspect?

(b) What should the horizontal zoom value be?

(c) What should the vertical zoom value be?

(d) What is the resulting vertical field of view, in degrees?

Figure 10.43
Texture mapped quads for Exercise 4