Computer Science 102
                               Quiz I      Name ______________________


1. In the rotation matrix used in the fplane_t the plane unit
   normal vector becomes

   a. row 0                            b. row 1

   c. row 2                            d. its not used in the matrix

2. row 1 of the rotation matrix is constructed as:

   a. row 2 x row 0                    b. row 0 x row 2

   c. the projection of the
      xdir on the y axis

3. The transformation of the hit point that is done in hit testing
   is.

   a. a subtraction followed           b. a rotation followed by
      by a rotation                       a subtraction

   c. a rotation and a a subtraction
      but the order doesn't matter

4. In the textured plane model discussed in class

   a. the texture_t class was         b. the texplane_t class was derived
      derived from the texplane_t        from the texture_t

   c. the texture_t class was
      not derived from any other class

5. In the textured plane model discussed in class the texplane_t class was
   derived (directly) from

   a. the texture_t                    b. the fplane_t

   c. the plane_t                      d. the object_t