Homework Assignment #3 EECS 487 Winter 2004
Due: Monday, March 15^th 2004 (in class)

Problem #1. Given a color defined in HSV as 120°, 0.5, 1.0

1. Show the position of this color on a CIE diagram
2. What is the B/W value of this color using the YIQ?
3. What is the dominant frequency?

Problem #2. Given the incoming Ray I <0.5, -0.866025, 0> and the normal N <0, 1, 0> at the ray surface intersection;

A. What is the angle of reflection with respect to I and N?

B. Draw a Diagram and label all vectors and angles.

C. Find the reflected ray R

Problem #3. Consider the following L-system:

1) F ® F [+F] [-F] F

Where:

The Axiom is ++F

The angle is 45°, or p/4 radians, or in turtle graphics language 8.

Do 3 iterations of F.

a) Write the resulting string.

b) Draw corresponding picture.