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Computer Graphics with Open GL

Donald Hearn. M. Pauline. Baker, Warren R.Carithers

Chapter 1

Computer Graphics Hardware - all with Video Answers

Educators


Chapter Questions

03:05

Problem 1

List the operating characteristics for the following display technologies: raster refresh systems, vector refresh systems, plasma panels, and LCDs.

Christopher Nilsen
Christopher Nilsen
Numerade Educator
01:53

Problem 2

List some applications appropriate for each of the display technologies in the previous question.

Keenan Mintz
Keenan Mintz
University of Miami
02:31

Problem 3

Determine the resolution (pixels per centimeter) in the $x$ and $y$ directions for the video monitor in use on your system. Determine the aspect ratio, and
explain how relative proportions of objects can be
maintained on your system.

Lisa Tarman
Lisa Tarman
Numerade Educator
01:17

Problem 4

Consider three different raster systems with resolutions of 800 by 600, 1280 by 960, and 1680 by
1050. What size frame buffer (in bytes) is needed
for each of these systems to store 16 bits per pixel?
How much storage is required for each system if
32 bits per pixel are to be stored?

Aaron Goree
Aaron Goree
Numerade Educator
01:17

Problem 5

Suppose an RGB raster system is to be designed using an 8 inch by 10 inch screen with a resolution of
100 pixels per inch in each direction. If we want to
store 6 bits per pixel in the frame buffer, how much
storage (in bytes) do we need for the frame buffer?

Aaron Goree
Aaron Goree
Numerade Educator
02:25

Problem 6

How long would it take to load an 800 by 600
frame buffer with 16 bits per pixel, if 105 bits can be
transferred per second? How long would it take to load a 32-bit-per-pixel frame buffer with a resolution of 1680 by 1050 using this same transfer rate?

Shelby Mohamed
Shelby Mohamed
Numerade Educator
01:19

Problem 7

Suppose we have a computer with 32 bits per word
and a transfer rate of 1 mip (one million instructions per second). How long would it take to fill the
frame buffer of a 300 dpi (dot per inch) laser printer
with a page size of 8.5 inches by 11 inches?

Rylie Howey
Rylie Howey
Numerade Educator
01:12

Problem 8

Consider two raster systems with resolutions of
800 by 600 and 1680 by 1050. How many pixels could be accessed per second in each of these
systems by a display controller that refreshes the
screen at a rate of 60 frames per second? What is
the access time per pixel in each system?

Narayan Hari
Narayan Hari
Numerade Educator
01:07

Problem 9

Suppose we have a video monitor with a display
area that measures 12 inches across and 9.6 inches
high. If the resolution is 1280 by 1024 and the
aspect ratio is 1, what is the diameter of each screen
point?

Amy Jiang
Amy Jiang
Numerade Educator
01:02

Problem 10

How much time is spent scanning across each row
of pixels during screen refresh on a raster system
with a resolution of 1680 by 1050 and a refresh rate
of 30 frames per second?

Julie Silva
Julie Silva
Numerade Educator
01:02

Problem 11

Consider a noninterlaced raster monitor with a resolution of $n$ by $m$ ( $m$ scan lines and $n$ pixels per scan line), a refresh rate of $r$ frames per second, a horizontal retrace time of thoriz, and a vertical retrace time of $t_{v e r t}$. What is the fraction of the total refresh time per frame spent in retrace of the electron beam?

Ranjeet Singh
Ranjeet Singh
Numerade Educator
01:11

Problem 12

What is the fraction of the total refresh time per
frame spent in retrace of the electron beam for a
non-interlaced raster system with a resolution of
1680 by 1050, a refresh rate of 65 Hz, a horizontal retrace time of 4 microseconds, and a vertical
retrace time of 400 microseconds?

Sarah Chapman
Sarah Chapman
Numerade Educator
01:17

Problem 13

Assuming that a certain full-color (24 bits per pixel)
RGB raster system has a 1024 by 1024 frame buffer,
how many distinct color choices (intensity levels)
would we have available? How many different colors could we display at any one time?

Aaron Goree
Aaron Goree
Numerade Educator
01:47

Problem 14

Compare the advantages and disadvantages of a
three-dimensional monitor using a varifocal mirror to those of a stereoscopic system.

Pankaj Jain
Pankaj Jain
Numerade Educator
00:40

Problem 15

List the different input and output components
that are typically used with virtual-reality systems.
Also, explain how users interact with a virtual
scene displayed with different output devices, such
as two-dimensional and stereoscopic monitors.

Sri Datta Vikas Buchemmavari
Sri Datta Vikas Buchemmavari
Numerade Educator
01:51

Problem 16

Explain how virtual-reality systems can be used in
design applications. What are some other applications for virtual-reality systems?

Donald Albin
Donald Albin
Numerade Educator
05:06

Problem 17

List some applications for large-screen displays.

Charles Carter
Charles Carter
Numerade Educator
03:55

Problem 18

Explain the differences between a general graphics system designed for a programmer and one designed for a specific application, such as architectural design.

Jennifer Stoner
Jennifer Stoner
Numerade Educator