CPSC 120, Fall 2002                   Information About the Third Test
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     The third test in this course will be given in class on Wednesday,
November 20.  It will cover all the material that we have done since
the second test.  Since we worked on xTurtle during this time, you'll
also need to remember the basic material on xTurtle that we covered
previously.  The test covers Chapters 7 and 11 from the text and
Labs 8, 9, and 10.  We did not cover Section 4 in Chapter 7.  You should
be able to write your own xTurtle subroutines as well as use subroutines
that are given to you.  You will not be asked to write a recursive
subroutine, but you should be able to trace the execution of a
recursive subroutine to determine what it does.  In addition to knowing
the theory of computer graphics from the textbook, you should know
the basics of the xModels language.

Here are some of the things you should know (these lists are
taken pretty much intact from the class Web page):
 
     subroutine                        module
     subroutine declaration            black box
     using SUB...END SUB               implementation and interface
     dummy parameter                   software life cycle
     actual parameter                  top-down design
     local variable                    bottom-up design
     recursion                         software engineering
     recursive subroutine              coding
     Koch curve
     randomness in recursion

     computer graphics                          From xModels:
     animation                                     line, circle, square
     painting programs                             cube
     drawing program                               rotate, scale, translate
     rendering                                     animate
     geometric modeling                            DEFINE
     transformations                               color-changing commands
     scaling, rotation, and translation            value ranges such as 5:10
     coordinate system
     origin
     scene description language
     frames of an animation
     key frame animation
     object definitions in xModels
     xyz-coordinate system on 3D space
     rotations in three dimensions
     axis of rotation
     projection from 3D to 2D
     wireframe model
     specular reflection and diffuse reflection
     color
     textures and bump map
     light sources
     ambient light
     hidden surface
     ray tracing and radiosity  
     lathing and extrusion
     scaling and translation in 3D
     rotations about the x-axis, the y-axis, and the z-axis