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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 ray around the scene and collecting intensity contributions. This provides a simple and powerful rendering technique for obtaining global reflection and transmission effects. The basic ray tracing algorithm also provides for visible surface detection shadow effects transparency and multiple light source illumination. For each scan line the intensity at the interaction of the scan line with a polygon edge is linearly interpolated from the intensities at the edge end points. For example the polygon edge with end point vertices at position 1 & 2 is intersected by the scan line at point 4. A fast method for obtaining the intensity at point 4 is to interpolate lower intensities I1 & I2 using only the vertical displacement of the scan line.
Types of Formats It is significant to distinguish among a file format and a codec. Although most audio file formats support merely one audio codec, a file format may assist mul
Persistence: How long they continue to emit light (that is, have excited electrons returning to the ground state) after the CRT beam is removed. Persistence is defined as the ti
Advantages of Computer aided design - It is simpler to modify drawings - A library of parts can be kept - Ability to do automatic costings - Ability to mod
Define Computer graphics. Computer graphics remains one of the most popular and rapidly growing computer fields. Computer graphics may be explained as a pictorial representati
Education, Training, Entertainment and Computer Aided Design CAD or CADD is an acronym which depending upon who you ask, can stand for: I. Computer Assisted Design. II.
Derive the common transformation of parallel projection into the xy-plane in the direction of projection d=aI+bJ+cK. Solution: The common transformation of parallel projection
what is staircase appearance
Understanding the Concept of hypertext and hypermedia: For know the principle of Hypertext and Hypermedia we will look at how the human memory works.
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Pen Tablet and Plotter Pen Tablet: It is a digitizer tablet which is specialized for handwriting and hand marking. LCD-based tablets imitate the flow of ink as the tip tou
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