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student    : ninghai
graded by  : Kari Anne Hoier Kjolaas
time       : Sat Nov 13 18:27:25 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): 1
Transmission                  (0-2): 2
Shading			      (0-2): 2
Supersampling and jittering   (0-2): 2
Statistics		      (0-1): 1
Exactitude                    (0-1): 1
total                        (0-15): 13.5
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notes:

Nice job.  Only a couple of very minor 
problems.

You forgot to multiply the reflection ray
by the object's shininess before passing 
it on.

You do not render the inside of a cone
with no bottom.

Finally, you don't always normailze the 
reflection ray direction.  This is OK as
long as you are consistent, but can lead
to obscure bugs (just a warning, you did
not lose any points for this).

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