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student    : cda
graded by  : Charles Lee
problem set: ivscan
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Renders 1st test (triangle)   (0-3): 2
Renders 2nd test (rgb)        (0-2): 2
Renders 3rd test (cube)       (0-2): 2
Renders 4th test (interpen)   (0-2): 1
Renders 5th test (ellipse)    (0-2): 2
Renders 6th test (geekball)   (0-2): 2
Exactitude                    (0-2): 1
total                        (0-15): 12
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notes:

The pixel-lighting rule presented in lecture
(in which a pixel is lit only if its center
falls within the polygon) was not obeyed.

Linearly interpolating Z in screen space is
wrong. You needed to instead use linearly
interpolated values of h in order to correcly
gauge depth.
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