BIT Computer Graphics

bitsemester 5

This course covers the basic concepts of Computer Graphics, various algorithms for basic graphics primitives, 2-D geometric transformations on graphical objects, various Clipping algorithms on graphical objects, 3-D geometric transformations, curve representation techniques and projections methods, object surface modeling, visible surface detection, application of illumination and rendering algorithms, virtual reality and animation technique along with basic concept of OpenGL.

semester photo

Chapter Wise Notes Question Banks Syllabus Chapter Wise Questions Viva Practical

Unit 1:Introduction and Overview of Graphics System

Definition and Representative uses of Computer Graphics, Computer Graphics vs. Image Processing, Application Areas, Overview of Coordinate System, Definition of Scan Conversion, Rasterization and Rendering, Raster Scan & Random Scan Displays, Architecture of Raster Graphics System with Display Processor, Architecture of Random Scan Systems.

Unit 2:Output Primitives

Scan conversions of point, line, circle and ellipse: DDA algorithm and Bresenham algorithm for line drawing, midpoint algorithm for circle, midpoint algorithm for ellipse drawing (Mathematical derivation for above algorithms is expected), Filled Area Primitive: Scan line Polygon Fill algorithm, inside outside tests, Boundary Fill and Flood fill algorithm.

Unit 3:Two Dimensional Geometric Transformations

Basic transformations: Translation, Scaling, Rotation, Matrix representation and Homogeneous Coordinates, Composite transformation, Other transformations: Reflection and Shear.

Unit 4:Two-Dimensional Viewing and Clipping

Viewing transformation pipeline and Window to Viewport coordinate transformation, Clipping operations: Point clipping, Line clipping algorithms: Cohen-Sutherland, Liang-Barsky, Polygon Clipping Algorithms: Sutherland-Hodgeman.

Unit 5:Three-Dimensional Graphics

3D Transformations: Translation, Rotation, Scaling, Reflection and Shear, Composite transformations: Rotation about an arbitrary axis, Projections – Parallel, Perspective (Matrix Representation).

Unit 6:Three-Dimensional Object Representation and Curve Modeling

Boundary Surface Representation Vs Space Partitioning Representation, Polygon Surface Representation: Polygon Table and Polygon Meshes, Wireframe and Sweep Representation, Octree Representation, Bezier Curve, B-Spline Curve, Fractal-Geometry: Fractal Dimension, Koch Curve.

Unit 7:Visible Surface Detection

Image Space and Object Space techniques, Back Face Detection, Z-Buffer, A-Buffer, Scan-Line method, Painter's Algorithms, Area Subdivision method.

Unit 8:Illumination and Surface Rendering Methods

Introduction, Ambient, Diffuse and Specular reflections illumination Model, Constant, Gouraud and Phong shading models.

Unit 9:Virtual Reality and Animation

Virtual Reality: Concept of Virtual Reality, Components of VR System, Types of VR System, 3D position Tracker, Navigation and Manipulation Interface, Application of VR. Animation: Introduction to Animation, Traditional Animation Techniques, Principles of Animation, Key framing: Character and Facial Animation, Deformation, Motion capture.

Unit 10:Introduction to OpenGL

Introduction to OpenGL, Callback Functions, Color Commands, Drawing Pixels, Lines, and Polygons using OpenGL, Viewing, Lighting.