What do you understand by the following terms? Colour CRT Monitors, Beam Penetration Method, and Shadow Mask Method.
c) Compute the following
i) Resolution (per square inch) of 3×2 inch image that has 768×512 pixels.
ii) Width of an image having height of 6 inches and an aspect ratio 1.5 .
Colour CRT Monitors are a type of display device that uses the principle of cathode ray tubes (CRT) to produce color images. In these monitors, an electron gun emits a beam of electrons which strikes the phosphorescent screen coated with red, green, and blue phosphors. By controlling the intensity of the electron beams aimed at each color phosphor, the monitor can produce a full spectrum of colors. Colour CRT monitors were widely used in earlier computer graphics applications due to their ability to render high-quality images and display a wide range of colors, although they are largely replaced today by LCD and LED displays. The Beam Penetration Method is a technique used in color CRT monitors to generate different colors on the screen using a single electron gun and a multi-layered _______ _________ ___ _________ __________ ___ __________ ________ ___ _________.
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uppose we have a video monitor with a display area of measurement 12 inches across and 9.6 inches high. If the resolution is 1280×1024 pixels. What is the diameter of each pixel (in cm)?
Compare Boundary fill algorithm and Flood fill algorithm. Mention at least two advantages and limitations of both algorithms. Why does boundary fill algorithm fail when boundary is not completely closed? Explain with an example.
Using the DDA line drawing algorithm, determine the raster points for the line segment joining P(12,4) and Q(4,10).
What do you understand by the following terms? Colour CRT Monitors, Beam Penetration Method, and Shadow Mask Method.
c) Compute the following
i) Resolution (per square inch) of 3×2 inch image that has 768×512 pixels.
ii) Width of an image having height of 6 inches and an aspect ratio 1.5 .
Write the syntax of glFrustum() and gluPerspective(). Explain any two parameters of each function.
d) Design a program that displays the top, front, and right views of a pyramid using orthographic projection. Explain the difference between single-view and multi-view representations of 3D objects. Why are multi-view projections important?
Find the normalisation transformation matrix that maps the window with corners at (-2,1) and (6,9) onto a normalised viewport [0, 1] × [0, 1].
The centre of projection coincides with the origin. The projection plane passes through the point P(1,5,6) and has a normal vector (3,2,-1). Obtain the perspective projection transformation.
d) A square has opposite vertices at (0,1) and (2,3). Shear the square
i) by 1 unit along the x-axis with respect to y = 1.
ii) by 3 units along the y-axis wi respect to x = 1.