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Video controller: A Fixed area of the system memory controller for the frame buffer, and the video controller is given direct access to the frame – buffer memory, frame – buffer locations, and the corresponding screen positions are referenced in Cartesian coordinates for many graphic computer, monitors, the coordinates origin is defined at the lower left screen corner. Figure. The screen surface is then represented as the first quadrant of a two – dimensional system with positive x value, increasing to the right and positive y values increasing from bottom to top. on some personal computer, the coordinate origin is referred as the upper left corner of the screen, so the y values are invented. Scan line are then labeled from y max at the top of the screen to 0 at the bottom. Along each scan line screen pixel positions are labeled from 0 to ax max, figure. The basic refresh operations of the video controller are shown in diagram. Two registers are used to store the coordinates of the screen pixels. Initially the x register is set to x and y register is set to y m frame buffer for this pixel position is then retrieved and used to set the intensity of the CRT beam. Since the screen must be referred at the rate of 60 frames per second, the simple procedure illustrated in figure cannot be accommodated by typical RAM chips. The cycle times is too slow.
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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.
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Question: (a) (i) Give four reasons to explain why are the bitmap images unsuitable for use in a high end print production workflow. (ii) An eps file has two main parts,
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
How many 128 x 8 RAM chips are needed to provide a memory capacity of 4096 16 bits?
how to develop bresenham''s line drawing algorithm?
Vector Graphics: These are images which may be entirely described by using mathematical definitions. The image below demonstrates the principle. To the left you notice the image i
Scale a sphere cantered on the point (1, 2, and 3) with radius 1, so that the new sphere has the same centre with radius 2. Solution: Translate the sphere so that its centre
what is character genration
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