计算机图形学computergraphics讲义.ppt

Scientific Computing * Architecture * Medical * * * Computer Graphics Prof. Zhang Caiming (张彩明) Dr. Zhou Yuanfeng (周元峰) Shandong University Books References * 当 当 价：￥58.70 Books References * Course information Course materials: 2/share/ComputerGraphics/ Contact: Email: yfzhou@ Office: Room 212, laboratory building URL: 2/lab/people/zyf.jsp * Course information Lab location: laboratory building Lab hours: 10 – 17 weeks Simple program framework Interactive 3D Grading: - 70% -- Final exam - 30% -- Lab assignments * What is Computer Graphics? Broad introduction to Computer Graphics Software Hardware Applications Top-down approach OpenGL – DirectX * Prerequisites Good programming skills in C (or C++) Basic Data Structures Linked lists Arrays Geometry Simple Linear Algebra * * Objectives In this lecture, we explore what computer graphics is about and survey some application areas We start with a historical introduction * Computer Graphics Computer graphics deals with all aspects of producing pictures or images with a computer Hardware Software Applications - Display of Information - Design - Simulation and Animation - User Interfaces * Example Where did this image come from? What hardware/software did we need to produce it? * Preliminary Answer Application: The object is an artist’s rendition of the sun for an animation to be shown in a domed environment (planetarium天文馆) (NURBS surface) Software: Maya for modeling and rendering but Maya is built on top of OpenGL Hardware: PC with graphics card (GPU) for modeling and rendering * Basic Graphics System Input devices Output device Image formed in FB（帧缓冲器） Output device * * CRT (Cathode-ray tube) Can be used either as a line-drawing device (calligraphic) or to display contents of frame buffer (raster mode) LED, LCD * * Computer Graphics: 1950-1960 Computer graphics goes back to the earliest days of computing Strip charts Pen plotters Simple displays using A/D converters to go from compute