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What is Raster Scan Display
A raster scan display device using CRT on the other hand directs the electron beam across the screen, one row at a time from top to bottom. In a raster scan display device, the screen is assumed to consists of a two-dimensional matrix. Remember that the term raster was used for a 2-D matrix. Each point of the screen corresponding to a matrix element is called pixel (picture element) as shown in Figure
Ray Tracing: Ray t racing is the technique to determine which objects in the scene are visible. In this to identify the visible surface for each pixel we continue to bounce the
Bezier Curves and Surfaces We had discussed in the previously that we can create complicated geometries along with the aid of polygon meshes that are further constituted of s
Write a code to generate a composite matrix for general 3D rotation matrix. Test your code and rotate continuously a cube about an axis.
Distinguish between window port & view port? A portion of a picture that is to be displayed by a window is called as window port. The display area of the part selected or the f
Sprite animation interactive, may be non rectangular (Computer games) In its simplest form it is a 2-D graphic object which moves across the display. Sprites frequently can hav
Interlaced GIF: The conventional which is non-interlaced GIF graphic downloads one line of pixels at one time from top to bottom and browsers display all lines of the image as it
Interpolation of surface - Polygon Rendering Interpolation of surface normals beside the polygonedge between two vertices is demonstrated above in the figure 15. Here the norm
Light Pen - input and output devices It is a pointing device. This has a light sensitive tip that is excited while the light is emitted and an illuminated point upon the disp
Disadvantages of CAD - Risk of deskilling - High training costs to use packages - Can move work overseas One CAD operator can do work of 5 manual draftsmen
Important points for Key Frame Systems - Computer Animation In key frame systems the "in-between" "tweening" or frames can be created from the specification of two or more key
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