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Weiler-Atherton Polygon Clipping: When the clipped polygons have two or more separate sections, then it is the concave polygon handled by this…

Computer Graphics Window to Viewport Co-ordinate Transformation Once object description has been transmitted to the viewing reference frame, we choose the window…

Computer Graphics Window: The method of selecting and enlarging a portion of a drawing is called windowing. The area chosen for this…

Z-Buffer Algorithm It is also called a Depth Buffer Algorithm. Depth buffer algorithm is simplest image space algorithm. For each pixel on…

Computer Graphics Zooming Zooming is a transformation often provided with an imaginary software. The transformation effectively scales down or blows up a…

Matrix Representation of 2D Transformation Program to implement 2-D Transformations: #include<iostream.h> #include<conio.h> #include<math.h> #include<stdlib.h> #include<conio.h> class trans { float x[20],y[20],xm,ym,ref[2][2],shx,shy; int i,j,k,n;…

Bresenham’s Circle Algorithm: Scan-Converting a circle using Bresenham’s algorithm works as follows: Points are generated from 90° to 45°, moves will be…

Hidden Surface Removal One of the most challenging problems in computer graphics is the removal of hidden parts from images of solid…

Three Dimensional Graphics The three-dimensional transformations are extensions of two-dimensional transformation. In 2D two coordinates are used, i.e., x and y whereas…

Bresenham’s Line Algorithm This algorithm is used for scan converting a line. It was developed by Bresenham. It is an efficient method…