COMPUTER GRAPHICS

Unit-I  

Computer graphics applications, graphics systems: video display devices, raster scan systems,        graphics monitors and workstations, input devices, hard copy devices, graphical user interface and interactive  input methods: user dialogue, input of graphical data, interactive picture- construction techniques.  

Unit-II  

Output primitives: Points and lines, line drawing, algorithms, frame, buffer, circle generation and ellipse generation algorithms, pixel addressing and object geometry, filled area primitives, character generation , antialiasing.  

Unit-III  

Two dimensional geometric transformations: Basic transformations (translation, rotation, scaling), matrix representations and homogeneous coordinates, composite transformations (translation, rotation, scaling, reflection , shear), transformation between  coordinates systems. Two dimensional viewing : viewing pipeline, viewing coordinates  reference frame, window to view port  coordinate transformation , point clipling, line cliping, polygon clipping.  

Unit-IV  

Three dimensional geometric and modeling transformation : Translation, rotation , scaling ,reflection, shear. Three dimensional viewing: viewing coordinates, projection , transformation , clipping.  

Unit-V  

Visible-surface detection  methods: Back face detection , depth buffer, a-buffer, scan line, depth- sorting , BSP-tree, area-subdivision method. Illumination models and surface -rendering method: Light sources, illumination models, displaying light intensities, halftone patterns and dithering techniques, polygon rendering methods.

Book

• Hearn, D.& Baker, M.P.; Computer Graphics. 2/ed.(PHI)