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What is the major disadvantages of storing information structures in display memory? A major disadvantage of storing information structures in display memory is that when color and intensity variations are incorporated into a frame buffer raster graphic device additional bit per pixel are required to produce these variations. Thus, the memory area required increase with increase in color and intensity variations. Thus larger memory areas are required to be kept reserved for color graphics display. Secondly since the frame buffer is a digital device and the CRT is and analog device so whenever some information is demanded from frame buffer, the information must first pass through a digital to analog converter and then transferred to the CRT.
Event Driven Devices - Polling Polling: The status of all devices is periodically checked in a repetitive manner through a polling loop. While an event happens, the loop is
Find Out Projection Matrix for Oblique Projection To find out projection matrix for oblique projection, we want to find out the direction vector d. Because vector PP' and vect
Cathode Ray Tube - Graphics Hardware Cathode Ray Tube: this is a refreshing display device. The idea of a refreshing display is depicted pictorially is given as: In fact
Determine the advantages of raster-scan systems (i) Rasterisation is now performed faster since a special purpose processor is used. (ii) The CPU is not slowed down by the
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.
Homogeneous Coordinate Systems - 2-d and 3-d transformations Suppose P(x,y) be any point in 2-D Euclidean (Cartesian) system. In HC System, we add a third coordinate to a poin
Video Conferencing and Virtual Reality Virtual reality is a truly fascinating multimedia application. In such, the computer creates an artificial environment using hardware an
Draw and explain the diagram of a Raster scan system with a display processor. Explain each unit of the diagram.
Demerit - phong shading or normal vector interpolation shading Needs lot of computations to determine intensity at a point, hence increases the cost of shading in any impleme
As we already seen that the scaling process is mainly utilized to change the size of an object. The scale factors find out whether the scaling is a magnification as s>1 or a red
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