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student    : ayyang
graded by  : Damian Isla
time       : Mon Nov 22 22:12:55 EST 1999
problem set: ivray
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Eye ray generation            (0-2): 2
Cone, cyl, poly isection      (0-2): 1.5
Shadow                        (0-1): 1
Reflection                    (0-2): 2
Transmission                  (0-2): 2
Shading			      (0-2): 2
Supersampling and jittering   (0-2): 0
Statistics		      (0-1): 0
Exactitude                    (0-1): 1
total                        (0-15): 11.5
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notes:

Great job, on a very difficult problem set. I found just a few
problems with your code:

Your cone intersection code is good, but you compute the normal
incorrectly.

In TransmissionDirection, the assumption you have to make is that when
you're entering an object, you're entering from vacuum (eta = 1) and
when you're leaving an object, you're leaving to vacuum. However, this
was really not clear from the comments that were provided, so no
points are being taken off for it.

I gave you 0 for Supersampling / jittering and the statistics
functions. This is because we did not get a RayTrace.C file with your
turnin. If you did not do this part of the problem set, that's
fine. However, if you DID do it and want credit for it, please e-mail
me (naimad) with the name of a publicly accessible locker or directory
where I can get the file, and then your grade will be adjusted
appropriately. Sound good?

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