Welcome to CSC 341/CSC 630 Introduction to Computer Graphics  Instructor  Susanna Wei  Office: BL 214  Phone: (610)   Office hours:  Tuesday 2:00 - 4:00  Thursday 2:00 - 4:00  Or, by appointment

About the course  Logistics  Room: B/L 225  Meeting time: Tuesday, Thursday 4:00 – 5:15pm  Course Web page:  Use your SJU username/password  Announcements will be made through the web page, make sure you check it often.  Required Text (Strongly recommended that you buy it)  Interactive Computer Graphics: A Top-Down Approach Using OpenGL Edward Angel, Addison Wesley  Which edition: 5 th  Recommended Text  OpenGL: A Primer, Edward Angel  Beginners guide to OpenGL

About the course  Reference Texts (good source of advanced information)  OpenGL Programming Guide: The official Guide to Learning OpenGL (Fourth Edition)  aka “The Redbook”  Available online at  OpenGL Reference Manual  aka “The Bluebook”  Available online at  PLUS  Take notes in class!!!  Material outside of the book

Course Goals  Introduce you to an exciting field in CS  Teach you  Fundamentals of computer graphics  How various elements that underlie computer graphics (algebra, geometry, algorithms, data structures, optics) interact in the design of graphics software systems  OpenGL API and GLUT  …so that you can design and implement your own graphics applications  Gain good insight into how complex computer graphics applications, such as games and movies, are produced.  “How did they do that??”  And, hopefully have some fun.

What do you need to know ?  Programming!  We will use C/C++ (OpenGL is not OO)  You also need to be comfortable with some math  Linear algebra (We will review it)  Basic trigonometry (cosines, etc.)

Course Work  Programming projects  due midnight on the due date, electronic submission.  Zip everything into a single directory. (Detailed instructions will be provided.)  late penalty  10% up to 24 hours late, 20% for every additional day  I will ask for a demo if need be.

Programming  C/C++ and OpenGL  OpenGL:  most widely used graphics library standard.  GL (basic OpenGL)  GLU (OpenGL Utilities): higher level operations, such as drawing curved surfaces  We also need GLUT (OpenGL Utility Toolkit) (for C/C++ only)  To handle windows and user interaction  Microsoft Visual C++  installed in BL 225 and the labs  Check the course web page for instructions of setting up OpenGL on your own PC’s  And other links related to OpenGL  Your programs must compile on department lab machines.  But you are free to develop on any platform if you prefer to do so.

Exams  Two exams  midterm  comprehensive final  Tentative weights  Homeworks and projects: 35 %  Midterm: 30 %  Final : 35 %

Academic Honesty  Okay to “discuss” general solution strategies  BUT, you should work independently when it comes to  Formulating/writing/programming solutions  You cannot share code or any written material  ALSO, you have to acknowledge any assistance you have received (book, internet, person)

About you  Name  Programming language: C/C++/Java/other?  Windows/Unix/Linux/Mac?  Programming experience  2, >2, >5?  Calc III (undergrads)? Any course in Linear algebra (grads)?  What do you expect from this course?

What is Computer Graphics?  Computer graphics: concerned with all aspects of generating images and animations using a computer.  Hardware and software systems  Main tasks:  modeling: creating and representing the geometry of objects in the 3D world  rendering: generating 2D images of the 3D scenes  animation: describing how objects change in time

Computer Graphics  Producing photorealistic images is a complex task  A field that is in great demand  Grown enormously over the past 20 years.  Dates back to 1960’s with Ivan Sutherland  Development of very simple software to produce line drawings of 2- and 3-dimensional scenes  Today, possible to produce images that are indistinguishable from photographs

Rendering Realism

Graphics Applications  Used in diverse areas  Science  Engineering  Medicine  Industry  Art  Entertainment  Advertising  Education and Training  Four major groups

Graphics Applications 1.Display of Information  a medium to convey information  gain insight into data  Maps  Statistical plots  Data analysis in medicine: 3D visualization of CT (computed tomography)/ MRI (magnetic resonance imaging) data  Scientific visualization  Conversion of data to geometric entities  Gives researchers means to interpret vast amounts of data (fluid flow, molecular biology, math)

Graphics Applications 2.Computer Aided Design (CAD)  Engineering, architecture  Mechanical parts (e.g. car industry), buildings  Iterative process

Graphics Applications 3. Simulation and Animation  Flight simulators ( virtual worlds for training pilots)  Games and educational software  Movies  Virtual Reality  Person can act as a part of a computer generated scene using special devices  e.g. training a surgical intern

Graphics Applications Movies

Graphics Applications Games

Graphics Applications 4.User interfaces  They are everywhere!  Windows, icons, menus  Graphical network browsers (IE, Netscape, Firefox)

For next class  Read Chapter 1 of Angel.