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student    : dewb
graded by  : Damian Isla
time       : Sun Nov 21 18:33:24 EST 1999
problem set: ivray
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Eye ray generation            (0-2): 2
Cone, cyl, poly isection      (0-2): 2
Shadow                        (0-1): 0.5
Reflection                    (0-2): 1
Transmission                  (0-2): 1
Shading			      (0-2): 1
Supersampling and jittering   (0-2): 0
Statistics		      (0-1): 0
Exactitude                    (0-1): 1
total                        (0-15): 8.5
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notes:

Direction to light reversed for infinite lights (should be
-light->directionWS rather than light->directionWS). This could be the
cause of some of the strange shadowing artifacts that you were seeing.

Your transmission direction is reversed.

Your objects all looked completely washed out, so no diffuse,
reflected or refracted color was apparent. Probably the main reason
for this was that your diffuseRadiance was being calculated
incorrectly. Specifically, you did not scale the radiance by
max(Light_direction . Surface_normal, 0)

Specular and ambient radiance had a similar problems and were being
computed incorrectly. I would go back and take another look at the
equations for the phong color model.

Supersampling, jittering, RayTraceStart and RayTraceFinish were not
implemented.

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