Computer Graphics Lecture 2: Input Devices and Image Formation

Play an AI-generated podcast conversation about this lesson

Which type of input devices allow a user to indicate a particular location on the display?

Data tablets

Physical devices (correct)

Logical devices

Spaceballs

What type of device returns character codes like ASCII?

Data tablet

Joystick

Physical keyboard (correct)

Spaceball

Which input device provides absolute positioning?

Spaceball

Mouse

Data tablet (correct)

Joystick

Which input device is well suited for applications such as flight simulators and games?

Joystick Signup and view all the answers

Which device looks like a joystick with a ball on the end of the stick?

Spaceball Signup and view all the answers

Which device provides relative positioning and may not always be desirable?

Mouse Signup and view all the answers

Which type of devices are suitable for three-dimensional graphics?

Logical devices Signup and view all the answers

What are the two major characteristics that describe the logical behavior of an input device?

The measurements returned and the time when the measurements are returned Signup and view all the answers

In computer graphics, how are images formed?

By following rays of light from a point source Signup and view all the answers

What are the three modes that describe the measure of a device?

Request-mode, Sample-mode, Event-mode Signup and view all the answers

What process is analogous to how images are formed in computer graphics?

Physical imaging systems Signup and view all the answers

What is one way to form an image in computer graphics?

Following rays of light from a point source Signup and view all the answers

What is light in the context of computer graphics?

Part of the electromagnetic spectrum that causes a reaction in our visual systems Signup and view all the answers

What is the function of a pinhole camera in forming images?

"It provides a means of forming images from objects by following rays of light from a point source" Signup and view all the answers

What must be combined to produce a two-dimensional image in image formation?

Objects, Viewers, Light source(s), Material properties Signup and view all the answers

What is the measure process defined by in the three distinct modes?

The relationship between the measure process and the trigger. Signup and view all the answers

Computer Graphics Lecture 2: Input Devices and Image Formation

Podcast Beta

Questions and Answers