Computer Science 102
                                  Major Program 2
                               Due 27 April 11:59PM

For this program the ONLY authorized source of assistance is
Dr. Westall or the TA's. ANY OTHER DISCUSSION of the program no matter how "high
level" or "peripheral" (e.g. Have you started/finished it yet?)
is STRICTLY FORBIDDEN.  Any student who observes improper behavior
is encouraged to report it to Dr. Westall. Reports that can be
verified will be rewarded with a 20 point bonus on the assignment for
the student doing the reporting and an F for the course for the
student being reported!!

Adhere to the following programming standards.  Violations will
lead to deductions.

(1) no function should be longer than 30 lines code + whitespace.
(2) the maximum nesting level in any function is ONE
(3) code lines should not extend beyond column 72
(4) no more that one statement may be written on a single line
(5) use reasonably descriptive names for variables and functions
(6) package all functions into a single source code module named camera.c
(7) your program should compile without any warnings with gcc -Wall
(8) indenting should be consistent with logical nesting
(9) diagnostic / debug prints should be disabled/deleted in
    your submission.

This is the evaluation regime for mp2. The numeric column
is the number of points associated with providing a working
version of the component. Providing a NON-WORKING version of any
component is discouraged and will lead to deductions(possibly
worse than not implementing the feature at all).

Ambient lighting with planes & spheres  45
Diffuse lighting / shadows              10
Finite plane                             5
Textured planes                         10
Spotlights                               5
Projecting textures                      5
Specular reflection                      5
Specular glints                          5
Anti-aliasing (makefile configurable)    5
Tiled infinite planes                    5
Multiple  non-quadric revsurfs          10
                                       ---
                          Possible     110

Note that implementing all features will give you a
score of 110/100 (i.e. 10 points extra credit)

mp2 will also have a "mymodel.txt" component that will
be worth an additional 10 points.

Thus a "perfect" total score is 110 but it is
possible to score as high as 120.

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What you MUST submit is a SINGLE FLAT directory.
No .tars and no subdirectories.  The SINGLE FLAT
directory must include:

(0) the code and a makefile that will build your
    raytracer.

(1) mytracer.txt. In this file you must identify
    the features that you believe work.  For example
    if my raytracer only does basic stuff + finite
    planes and spotlights I would submit the following.


_x_ Finite plane
___ Textured planes
_x_ Spotlights
___ Projecting textures
___ Specular reflection
___ Specular glints
___ Anti-aliasing (makefile configurable)
___ Tiled infinite planes
___ Multiple  non-quadric revsurfs

    If you don't claim a particular capability,
    there will be no deduction if said capability
    doesn't work. If you DO claim a capability and
    it doesn't work then that can lead to NEGATIVE
    credit.

(2) mymodel.txt In this file you must provide an input
    file that demos the best features of your raytracer.
    IF YOUR mymodel.txt requires textures you

    (a) MUST include them
    (b) THEY must live in your submission directory
    (c) YOUR mymodel.txt file must NOT refer to textures
        in other directories

    THE ONLY WAY TO ENSURE that this is the case is to
    TEST on jmw!

(3) myextensions.txt

    If you invent new stuff such as textured spheres
    describe what you have done.  Any such descriptions
    should

    (a) make clear where the source code lives
    (b) evident in the image produced by mymodel.txt