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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.
Distinguish between convex and concave polygons? If the line joining any two points in the polygon lies totally inside the polygon then, they are called as convex polygons. If
Suggest a method to draw an object as in figure using four Bézier curves of suitable degree Answer: Employ four quartic Bézier curves with the endpoint of one as the initial poi
Explain the merits and demerits of Plasma panel display. Advantages: Refreshing is not needed. Produce a very steady image free of Flicker. Less bulky than a CRT.
Objectives of Three dimensional transformations explain basic 3D transformations-translation, rotation, scaling, shear and reflections-applied to objects in space; ex
Cyrus Beck Algorithm - Line Clipping Algorithm Cyrus Beck Line clipping algorithm is actually, a parametric line-clipping algorithm. The term parametric means that we requi
TIFF: It is Tagged Image file format which is used mainly for exchanging documents among various applications and computers. This was primarily designed to turn into the standa
what is image precision in computer graphics
What are the different types of parallel projections? The parallel projections are basically divided into two types, depending on the relation among the direction of projectio
Implement displacement mapping and bump mapping on a sphere. The displacement can be whatever your choice. The bump map can be whatever your choice as well.
Polygon Surfaces - Curves and Surfaces By Figure 1 and Figure 2 it is clear that it is possible to store description of objects as a set of surface polygons and similar i
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