Introduction to Computer Graphics YuChi Lai EMail yuchics

Introduction to Computer Graphics (電腦圖學導論) Yu-Chi Lai 賴祐吉 E-Mail: yu-chi@cs. wisc. edu Webpage: http: //faculty. csie. ntust. edu. tw/~yu-chi/index. php/Intro. CG 2009/Main Office: RB-305 Office Hour: Mon, 2: 00 PM ~ 4: 00 PM or by appointment 09/16/09 © 2009 NTUST

Today • Course overview and information • Digital Images 09/16/09 © 2009 NTUST

What is Computer Graphics? • Technically, it’s about the production, manipulation and display of images using computers • Practically, it’s about movies, games, design, training, art, advertising, communication, … 09/16/09 © 2009 NTUST

This Course: Building Blocks • Images and computers – Sampling, Color, Filters, … • Drawing in 2 D – Drawing lines and triangles, clipping, transformations • Drawing in 3 D – Viewing, transformations, lighting, real-time graphics • Modeling in 3 D – Describing volumes and surfaces, drawing them effectively • Miscellaneous topics – Raytracing, animation, … 09/16/09 © 2009 NTUST

Textbooks and Readings • Peter Shirley, “Fundamentals of Computer Graphics”, A. K. Peters, 2002 • Mason Woo, et al. The Open. GL Programmer's Guide. – The definitive guide to Open. GL, and a reasonable description of general real-time 3 D graphics – It doesn’t really matter which edition – the differences are not pertinent to this class, – Html version. • Tomas Akenine-Möller and Eric Haines. Real Time Rendering, 3 e. • Class readings – Online via the library’s reserve system – see class web page – A collection of papers, textbook chapters, and other documents – Some essential material not contained in the textbook 09/16/09 © 2009 NTUST

Projects • There will be four projects for the course, spread evenly through the semester • Project 1: Image editing • Project 2: Running a maze • Project 3: Roster Coaster • Project 4: Building a virtual theme park • You must submit all four in order to pass the course – This rule has never been waived 09/16/09 © 2009 NTUST

Homeworks • There will be 4 ~ 5 homeworks • They are intended primarily to explore topics further and to prepare you for the exams • Some essential techniques will be presented only in homework – For example, an review of linear algebra 09/16/09 © 2009 NTUST

Grading (approximate) • • • 30% Midterm and Final 60% Projects (15, 12. 5, 20) 10% Homework Everyone must write up their own homework For projects 1 and 3, 4, you have the option of working in pairs • You will only get higher score if I need to adjust the score. 09/16/09 © 2009 NTUST

Lab Facilities • Room RB-504 contains machines for use in this class • They have adequate hardware (circa 2001) and the software to make it work • There are benefits to working in a lab with your classmates – For instance, the blackboards frequently display useful hints that someone else scrawled – But they also sometimes have incorrect information!! 09/16/09 © 2009 NTUST

Software Infrastructure • FLTK will be the user interface toolkit – Provides windows, buttons, menus, etc – C++ class library, completely portable – We are currently at version 1. 1. 0 rc 6, available for free: www. fltk. org • Open. GL will be the 3 D rendering toolkit – Provides an API for drawing objects specified in 3 D – Included as part of Windows and in most Unix distributions • Although getting hardware acceleration may take some doing • Visual Studio. NET will be the programming environment for grading • To be graded, your projects must compile under Visual C++ on the machines in room RB-504 09/16/09 © 2009 NTUST

C++ • You must complete large software projects in C++ without step by step instructions • There is a great deal of freedom in the projects, which requires that you do your own software design • If you are not comfortable in C++, you will have to take action • There are tutorials intended to teach you C++ assuming you know Java: – http: //www. cs. wisc. edu/~hasti/cs 368/Cpp. Tutorial/index. html – These are intended for the course CS 368, but just do the tutorials 09/16/09 © 2009 NTUST

Rules • You must write your own homework. • You use codes from web page but you need to write the contribution • You cannot copy codes from your classmates and your friends who took this class before. – If I find out, you will fail the class and face the penalty from school. • The notes are in English. • In exam, please don’t translate the special vocabulary into Chinese. 09/16/09 © 2009 NTUST

Admin Questions? 09/16/09 © 2009 NTUST

Next Time • Image • Color 09/16/09 © 2009 NTUST