Computer Graphics Bezier Curves and Line Drawing

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Questions and Answers

Which of the following is NOT a primary application of computer graphics?

Digital art and animation

Scientific visualization

Data encryption (correct)

Computer-aided design (CAD)

What is the primary role of a GPU (Graphics Processing Unit) in computer graphics?

Rendering 3D graphics (correct)

Handling network communication

Managing file storage

Running the operating system

What does the equation C(n,x) = n! / [x! * (n-x)!] represent in computer graphics?

Bezier curve equation

Hermite interpolating polynomial equation

Combinations calculation for selecting x elements from n elements (correct)

B-Spline basis function equation

What is the purpose of the 'Reflection of an object about the x axis' in computer graphics?

To create a mirror image of the object horizontally Signup and view all the answers

In the context of computer graphics, what does 'Translation = Rotation + = Scaling' represent?

A transformation matrix equation Signup and view all the answers

What element is responsible for the actual rendering of visual images on a computer in computer graphics?

GPU (Graphics Processing Unit) Signup and view all the answers

Which type of computer graphics deals with the representation of objects and scenes in a three-dimensional space?

3D graphics Signup and view all the answers

In computer graphics, what does the term 'rendering' refer to?

The process of creating realistic images from 3D models Signup and view all the answers

What is the purpose of a frame buffer in computer graphics?

To store the colors of pixels on the screen Signup and view all the answers

In computer graphics, what does the term 'pixel' stand for?

Picture element Signup and view all the answers

Which of the following graphics primitives is used for creating curves and complex shapes?

Bezier curve Signup and view all the answers

Which of the following is NOT a common application of computer graphics in the field of science and medicine?

Weather forecasting Signup and view all the answers

What is the primary technology used in traditional computer monitors and TVs before the widespread use of LCDs and LEDs?

CRT Signup and view all the answers

In a CRT, what is the purpose of the cathode ray?

To generate images by scanning the screen Signup and view all the answers

The inside of the Cathode Ray Tube is coated with what material?

Fluorescent powder Signup and view all the answers

Which among the following is not merit (advantage) of the Cathode Ray Tube?

It runs at highest pixel ratio Signup and view all the answers

Study Notes

Applications of Computer Graphics

Primary applications include visualization in fields like entertainment, scientific simulations, and medical imaging.
Not commonly included as a primary application are tasks unrelated to visual representation.

Role of GPU

The GPU's primary role is to accelerate the rendering of images by performing complex calculations for graphics rendering.

Combinatorial Equation

The equation C(n,x) = n! / [x! * (n-x)!] is used in computer graphics for combinatorial calculations, often relating to object modeling and transformations.

Reflection Purpose

Reflecting an object about the x-axis is a transformation that helps in repositioning or flipping an object to achieve symmetry or create mirrored effects.

Transformation Representation

The equation 'Translation = Rotation + Scaling' indicates the composition of transformations in computer graphics, showing how various movements modify an object's position and size.

Rendering Elements

The rendering of visual images on a computer is primarily achieved by the GPU, which processes and outputs graphics data to display devices.

3D Graphics

3D computer graphics focuses on representing objects and scenes within a three-dimensional space, allowing for depth perception and realism.

Rendering Definition

In computer graphics, 'rendering' refers to the process of generating an image from a model through computer algorithms, producing the final visual output.

Purpose of Frame Buffer

A frame buffer stores pixel data that will be displayed on the screen, ensuring smooth image rendering and enabling complex visual effects.

Pixel Meaning

A 'pixel' stands for the smallest unit of a digital image, representing a single point in the image and contributing to the overall visual quality.

Graphics Primitives

Curves and complex shapes are typically created using spline graphics primitives, which provide smooth and flexible modeling options.

Non-Common Applications

Certain applications in fields like science and medicine may not commonly use computer graphics, such as routine data processing tasks.

Traditional Monitor Technology

Before the adoption of LCDs and LEDs, the primary technology used in traditional monitors and TVs was Cathode Ray Tube (CRT) technology.

Cathode Ray Purpose

In a CRT, the cathode ray's purpose is to emit electrons that are manipulated to create images on the screen by striking a phosphorescent surface.

Coating Material in CRT

The inside of a Cathode Ray Tube is coated with phosphorescent materials that glow when struck by electrons generated by the cathode ray.

CRT Disadvantages

Though CRTs had notable advantages, they also faced criticisms for issues such as bulkiness and low energy efficiency, which are not considered merits.

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Description

Test your knowledge of computer graphics concepts such as Bezier curves, line drawing algorithms, and transformation operations like translation, rotation, scaling, and reflection. This quiz covers topics related to computer graphics and mathematical operations used in graphical programming.