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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.
Explain the 3d transformations
Question: a) Datagram packet delivery and Virtual circuit packet delivery are two approaches to the delivery of packets by the network layer. Explain. b) What is the meaning
What is resolution? Ans. The maximum number of points that can be shown without an overlap on a CRT is known as resolution.
What is scan line algorithm? One way to fill the polygon is to apply the inside test. I.e. to check whether the pixel is inside the polygon or outside the polygon and then hig
What are the features found in CAD Features generally found in a CAD package involve: - 2D and 3D modelling - Wire frame - Library of parts that can be used in new dra
Example1: Translate a square ABCD along with the coordinates as: A(0,0),B(5,0),C(5,5),D(0,5) via 2 units in x-direction and 3 units in y-direction. Solution: We can show the
Q. Why are all resolutions in ratio of 4:3? The bad news is that almost every monitor can only display upto a maximum of 262,144 colours (i.e. 18 bits/pixel Colour Depth). The
Q. Explain the concept of area subdivision method. Write the conditions, when no further subdivision is needed and how we can test these condition. Ans. Area Subdivision Th
Input and Output Devices - computer aided design Output and Input devices are quite significant for any software since an unsuitable selection of the concerned hardware may tu
Unrepresentative vertex normals - Modeling and Rendering Calculated vertex normals may not adequately present the surface's geometry. For illustration, if we calculate vertex
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