.. title: CG Class 2, Tues 2019-09-03 .. slug: class02 .. date: 2019-09-03 .. tags: class .. category: .. link: .. description: .. type: text Wed 2019-09-03, Class 02 ------------------------ .. sectnum:: .. contents:: Table of contents .. Piazza ====== We now have a class Piazza discussion, with this `signup page `_. I enrolled everyone who pre-registered. Post your non personal questions here. You are encouraged to answer other students' questions. I may answer questions that remain unanswered for too long. Part of your grade depends on answering some questions. Homework 1 notes ================ #. You may use any (legal) webserver. #. If using rpi.edu, you may use any (legal) upload technique. #. Because of resource limits, rpi.edu's config has been known to change w/o notice. Also, my view of it can be different from the student view. E.g, students do not automatically get AFS access. However, the following points may help. #. Mac users: ssh to rcs.rpi.edu with *terminal*. #. Windows users: install *putty*. Unfortunately I'm not allowed to install SW on the classroom PC and so can't demo it. #. Linux: run *ssh* to login to rcs.rpi.edu. #. For copying files: #. For a few small files, cut and paste. #. Windows: install *winscp* or *filezilla*. #. From inside your rcs account: *wget* copies the contents (files or dirs) specified by a URL. #. With an AFS client program, your RCS directory is read and writable from another computer. On linux, that's the openafs-client package. #. From any OS, you may be able to mount your RCS dir as a share thus: *sftp://rcs.rpi.edu* . #. Other platforms: ? #. Today I'll demo the program in the homework and help in getting started. Angel ===== #. Angel's slides should be here: http://www.cs.unm.edu/~angel/BOOK/INTERACTIVE_COMPUTER_GRAPHICS/SEVENTH_EDITION/PPT/ or https://www.cs.unm.edu/~angel/BOOK/INTERACTIVE_COMPUTER_GRAPHICS/SEVENTH_EDITION/PPT/ #. Since that is not always working, use my local copy: https://wrf.ecse.rpi.edu/Teaching/graphics/SEVENTH_EDITION/ Commentary: It is a **myth** that material on the web lasts forever. I have many counterexamples, even for pages I've used in this class over the years. #. Read week 1, sets 1-4 on your own. #. I'll do in class: #. Week 1, set 5, Image Formation