The images for the raytracing contest are here
The current gradesheet is available in pdf form here
(the images at the top of the page are, in order, 'Virtual Eye' by Paul Neumann, 'Fractal Explorer' by Randy Hudson, 'Pagoda Room' by Jon Goldman, and 'Cholera' by Christina Vasilakis, all members of Electronic Visualization Lab here at UIC)
most of these notes for this course have their origins in the course textbook "Computer Graphics - Principles and Practice" but Foley / Van Dam / Feiner / Hughes. If you are serious about computer graphics you really should own a copy of this book of your very own.