CSC 418/2504 Fall 2001: Assignment 2 marking

If you have a question or dispute about the way your assignment 2 was marked, please get in touch with the T.A. who marked the question.

If you cannot resolve the problem, then submit the assignment to the instructor within 2 weeks of receiving the assignment (ie, by December 5th), and he will re-mark the assignment.

Who marked what:
Questions Marker Email
1,2 Jingrui Zhang ta418zha@cdf.utoronto.ca
3,4 Meng Sun ta418sun@cdf.utoronto.ca
5,6 Dave Hill ta418hil@cdf.utoronto.ca

Marking Codes for questions 5 and 6:

Many students tended to make the same programming error. To save space, the marker devised codes to indicate that a typical error had been made:
Question Code Meaning Penalty
5 A ray intersection code is incorrect (not reporting hits properly) -3
5 B ray construction is wrong -2
5 C returns correct hits, but incorrect values for hit points (Not sorting points, or not testing caps? -2
5 D returns hit with bogus values when no hit occurs -2
- - - -
6 A transformations not in correct order -- scaling is being affected by rotations so boxes do not stay square -1
6 B limbs/extremities rotating incorrectly (e.g., around center, not around corner position) -1
6 C neck rotation incorrect -0.5
6 D cylinder drawn incorrectly -0.5
6 E rotations go in wrong direction (e.g., knees bend backwards, etc.) -0.5

Alejo Hausner, Dept of Computer Science, University of Toronto
Last modified: Wed Nov 21 16:47:40 EST 2001