Programming Assignment #4
Ray Casting and Ray Tracing
Due Tuesday, November 20 by 11:59pm
(The grade for this assignment is out of 100 points, but you can obtain up to a maximum of 125
points by doing more optional components. Additional points beyond 100 will be applied to your
final score for all programming assignments.)
Required Components: (80 pts)
(1) Demonstrate the ability to write out to an FSF file. You can do this by just drawing a test
pattern (such as a checkerboard image), or with the images from your ray caster/ray tracer
(10 pts)
(2) Generate a ray casted image (stored out as an FSF file) from a .ray specification. You can use
the examples from the website. Your ray caster must be able to handle at least sphere and
plane primitives (40 pts)
Note that your .ray parser must handle at least the following commands:
•eye x y z
•lookat x y z
•up x y z
•fov theta
•background r g b
•sphere
•plane
•material r g b ambientMix diffuseMix specularMix phongCoefficient reflectivity
•light r g b ambient
•light r g b point x y z
•translate x y z
•rotateX theta
•rotateY theta
•rotateZ theta
•scale x y z
•reset
(3) Generate a ray traced image (stored out as an FSF file) from a .ray specification. You can use
the examples from the website. This image must include, at least, shadows and reflections.
You should include the ability to vary the maximum level of recursion, either as a command
line argument or by prompting for user input. (30 pts)
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