Computer Graphics

Computer graphics is one of the fundamental aspects of any computing system. Its primary role is to render the digital content (0’s and 1’s) in a human-comprehensible form on the computer screen. The rendering follows a series of stages, collectively known as the graphics pipeline. In this course, we will introduce the pipeline and its stages. The topics covered include various object representation techniques followed by the pipeline stages of modeling transformation, 3D to 2D viewing transformation, clipping and hidden surface removal and scan conversion (rendering). We shall follow the stages of the 3D graphics pipeline. In order to complete the coverage, we shall also briefly introduce the present day graphics hardware (I/O devices, GPU) and the widely popular openGL graphics library. INTENDED AUDIENCE :UG students of Computer Science and Engineering/ITPREREQUISITES : Knowledge of data structures and algorithm is preferable.INDUSTRIES SUPPORT : (1) Gaming and entertainment industry (2) Industry dealing with display technology (3) Interactive consumer electronic industry (4) Any other industry dealing with display and content rendering

Week 1: Introduction – historical evolution, issues and challenges, graphics pipeline, hardware and software basics Week 2: Object representation – boundary representation, splines, space partitioningWeek 3: Modeling transformations – matrix representation, homogeneous coordinate system, composition, 3D transformationsWeek 4: Illumination and shading – background, simple lighting model, shading models, intensity representation, color models, texture synthesisWeek 5: 3D viewing – viewing pipeline, view coordinate system, viewing transformation, projection, window-viewport transformationWeek 6: Clipping and hidden surface removal – clipping in 2D. 3D clipping algorithms, hidden surface removal Week 7: Rendering – scan conversion of line, circle, fill-area and characters, anti-aliasingWeek 8: Graphics hardware and software – generic architecture, I/O, GPU, Shader programming, graphics software (openGL)