AUTUMN Asst. Prof. Dr. Gazi Erkan BOSTANCI Slides by Robert Thomson, Süleyman Tosun and Kurtuluş Küllü

Overview What is Computer Graphics Graphics Applications About this course

What is Computer Graphics? “Computer graphics is a sub-field of computer science and is concerned with digitally synthesizing and manipulating visual content.” A broad classification of major subfields in computer graphics might be: –Imaging: studies image acquisition or image editing –Rendering: studies algorithms to reproduce light transport –Geometry (modeling): studies ways to represent and process surfaces –Animation: studies with ways to represent and manipulate motion

Imaging Image Representation –Sampling –Reconstruction –Quantization & Aliasing Image Processing –Filtering –Warping –Morphing Raster Graphics –Display devices –Color models Image composition Image morphing

Rendering 3D Rendering Pipeline –Modeling transformations –Viewing transformations –Hidden surface removal –Illumination, shading, and textures –Scan conversion, clipping –Hierarchical scene graphics –OpenGL Global illumination –Ray tracing –Radiosity OpenGL example

Modeling Representations of geometry –Curves –Surfaces –Solids Procedural modeling –Fractals Shell

Animation Keyframing –Kinematics –Articulated figures Motion capture Dynamics –Physically-based simulations Ice Queen

Graphics Applications Entertainment Computer-aided design Scientific visualization Training Education E-commerce Computer art

Graphics Applications  Entertainment Computer-aided design Scientific visualization Training Education E-commerce Computer art Toy Story Jurasic Park Quake

Graphics Applications Entertainment  Computer-aided design Scientific visualization Training Education E-commerce Computer art Los Angeles Airport Gear Shaft Design CMOS Circuit Design

Graphics Applications Entertainment Computer-aided design  Scientific visualization Training Education E-commerce Computer art Airflow inside a thunderstorm Visible human

Graphics Applications Entertainment Computer-aided design Scientific visualization  Training Education E-commerce Computer art Desk Assembly Driving Simulation Flight Simulation

Graphics Applications Entertainment Computer-aided design Scientific visualization Training  Education E-commerce Computer art Human Skeleton

Graphics Applications Entertainment Computer-aided design Scientific visualization Training Education  E-commerce Computer art Virtual Phone Store Interactive kitchen planner

Graphics Applications Entertainment Computer-aided design Scientific visualization Training Education E-commerce  Computer art Fantasyartdesign.com

About This Course Course textbook –Computer Graphics with OpenGL (3rd edn), D. Hearn & M. P. Baker, Pearson / Prentice Hall, 2004 Useful textbooks –Interactive Computer Graphics, a top-down approach using OpenGL, E. Angel, Pearson/Addison-Wesley, 2005 –Computer Graphics using OpenGL, F. S. Hill, Prentice Hall, 2001 –Fundamentals of Computer Graphics, by P Shirley, M Ashikhmin, M Gleicher, and S Marschner 2005 –Computer Graphics - Principles and Practice, Foley, van Dam, Feiner and Hughes, Addison-Wesley

OpenGL references The Red Book : The OpenGL Programming Guide: The Official Guide to Learning OpenGL, Version 2 (5th Edition) Addison-Wesley The Blue Book : The OpenGL Reference Manual : The Official Reference Document to OpenGL, Version 1.4 (4th Edition), Addison- Wesley

Meeting hours per week 3 hours lecture –By Gazi Erkan BOSTANCI

Computer Graphics with OpenGL Book Contents: 1. A Survey of Computer Graphics. 2. Overview of Graphics Systems. 3. Graphics Output Primitives. 4. Attributes of Output Primitives. 5. Geometric Transformations. 6. Two-Dimensional Viewing Transformations. 7. Three-Dimensional Viewing Transformations. 8. Three-Dimensional Object Representations. 9. Identifying Visible Surfaces. 10. Illumination Models and Surface-Rendering. 11. Graphical User Interfaces and Interactive Input Methods. 12. Colour Models and Colour Applications. 13. Computer Animation. 14. Picture Partitioning & Hierarchical Modeling. 15. Graphics File Formats Appendix: Mathematics for Computer Graphics

What is OpenGL OpenGL is a graphics library for developing portable, interactive 2D and 3D graphics applications. Most Widely Adopted Graphics Standard Open, vendor-neutral, multiplatform

Resources Can run OpenGL on any system –Windows –Linux –Mac Get GLUT from web if needed (Lab TA will explain further)

To set up OpenGL GLUT in Visual C++ Go to Download glut bin.zip Unzip to get four files: “glut.h”, “glut32.lib”, “glut32.dll” and “readme.txt” copy “glut.h” to C:\..\..\VC98\include\GL copy “glut32.lib” to C:\..\..\VC98\lib copy “glut32.dll” to C:\WINDOWS\system or C:\WINNT\system32

Hearn & Baker Codes Program code for examples in the Hearn and Baker book can be downloaded:

Homework 1 Reading assignment –Chapters 1 & 2 –Sections from Chapter 3: