Master Graphics Primitives: The Building Blocks of Computer Graphics

Question 1

What type of primitive can be defined by two non-coincident points?

Accepted Answer

Straight line

Answer

Dot

Answer

Triangle

Answer

Circle

Question 2

Which of the following is the most efficient approach to represent a polygon with a significant number of vertices?

Accepted Answer

Quadtree or octree data structure

Answer

Array of vertex coordinates

Answer

Linked list of vertices

Answer

Graph adjacency matrix

Question 3

Which transformation matrix would be employed to scale a primitive by a factor of 2 in the x-direction and -1 in the y-direction?

Accepted Answer

[[2, 0], [0, -1]]

Answer

[[2, 0], [0, 1]]

Answer

[[0, 2], [-1, 0]]

Answer

[[0, 2], [1, 0]]

Question 4

Which algorithm is commonly used to fill the interior of a polygon with a specified color?

Accepted Answer

Flood fill

Answer

Bresenham's line algorithm

Answer

Cohen-Sutherland line clipping

Answer

Midpoint circle algorithm

Question 5

Which of the following is NOT a common type of Bézier curve?

Accepted Answer

Hermite

Answer

Cubic

Answer

Quadratic

Answer

Linear

Question 6

Which of the following geometric shapes is NOT used as a primitive in computer graphics?

Accepted Answer

Sphere

Answer

Point

Answer

Line

Answer

Polygon

Question 7

What is the primary purpose of vertices in computer graphics?

Accepted Answer

Represent a single point in space

Answer

Define the starting and ending points of a line

Answer

Denote the intersection of multiple lines

Answer

Create the boundaries of polygons

Question 8

Which of the following is NOT a type of polygon in computer graphics?

Accepted Answer

Ellipse

Answer

Triangle

Answer

Quadrilateral

Answer

Hexagon

Question 9

What technique is primarily used to create the illusion of depth and perspective in a graphical scene?

Accepted Answer

Perspective projection

Answer

Lighting

Answer

Z-buffering

Answer

Texturing

Question 10

What is the primary purpose of a fill algorithm in computer graphics?

Accepted Answer

To determine the interior pixels of a polygon

Answer

To create a smooth gradient within a region

Answer

To calculate the surface area of a shape

Answer

To generate bounding boxes around objects

Question 11

What data structure is typically used to represent the vertices and edges of a polygon in computer graphics?

Accepted Answer

Graph

Answer

LinkedList

Answer

HashMap

Answer

Queue

Question 12

Which transformation matrix is used to rotate an object around the x-axis?

Accepted Answer

[[cosθ, -sinθ, 0, 0], [sinθ, cosθ, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]

Answer

[[sinθ, cosθ, 0, 0], [-cosθ, sinθ, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]

Answer

[[0, 0, cosθ, -sinθ], [0, 0, sinθ, cosθ], [cosθ, -sinθ, 0, 0], [sinθ, cosθ, 0, 0]]

Answer

[[0, 0, sinθ, cosθ], [0, 0, -cosθ, sinθ], [-sinθ, cosθ, 0, 0], [cosθ, sinθ, 0, 0]]

Question 13

What is the process of determining the visible portion of a graphical scene called?

Accepted Answer

Clipping

Answer

Culling

Answer

Rendering

Answer

Shading

Question 14

Which primitive is used to represent a straight path between two distinct points?

Accepted Answer

Line

Answer

Triangle

Answer

Rectangle

Answer

Circle

Question 15

What is the purpose of a transformation matrix in computer graphics?

Accepted Answer

To apply translations, rotations, and scaling to primitives

Answer

To define the perspective of a scene

Answer

To adjust lighting conditions

Answer

To generate complex geometric shapes

Question 16

Which of the following is NOT a type of lighting model used in computer graphics?

Accepted Answer

Ray casting

Answer

Phong shading

Answer

Lambert shading

Answer

Blinn-Phong shading

Question 17

What is the primary function of a vertex shader in a graphics pipeline?

Accepted Answer

To transform and manipulate vertex data

Answer

To calculate lighting and shading

Answer

To generate fragments for rasterization

Answer

To perform post-processing effects

Question 18

What is the primary advantage of using a scene graph in computer graphics?

Accepted Answer

Efficient organization of complex scenes

Answer

Real-time rendering

Answer

Improved lighting calculations

Answer

Reduced memory usage

Question 19

How do the elements of a transformation matrix affect the transformation of a primitive?

Accepted Answer

They determine the direction, angle, and scale of translation, rotation, and scaling.

Answer

They store the coordinates of the primitive's vertices.

Answer

They specify the color and texture of the primitive.

Answer

They have no impact on the transformation of the primitive.

Question 20

In 2D space, a point is typically represented as:

Accepted Answer

(x, y)

Answer

(x, y, z)

Answer

(r, θ)

Answer

(r, θ, φ)

Question 21

The process of projecting 3D coordinates onto a 2D plane is known as:

Accepted Answer

Projection

Answer

Mapping

Answer

Interpolation

Answer

Transformation

Question 22

Which algorithm is commonly used for rendering filled polygons?

Accepted Answer

Scan conversion algorithm

Answer

Bresenham's algorithm

Answer

DDA algorithm

Answer

Midpoint circle algorithm

Question 23

Pixel colors in digital images are often represented using the:

Accepted Answer

RGB model

Answer

CMYK model

Answer

HSV model

Answer

XYZ model

Question 24

Which of the following is NOT considered a primitive geometry in computer graphics?

Accepted Answer

Surface

Answer

Point

Answer

Line

Answer

Triangle

Question 25

In two-dimensional space, what is the mathematical representation of a point?

Accepted Answer

An ordered pair of numbers (x, y)

Answer

A singular numerical value denoting the point's distance from the origin

Answer

A mathematical vector comprising two components

Answer

A matrix containing a single row and column

Question 26

What is the primary purpose of a transformation matrix?

Accepted Answer

To perform geometric transformations such as translation, rotation, scaling, or shearing on an object

Answer

To establish the viewing frustum

Answer

To project a three-dimensional scene onto a two-dimensional plane

Answer

To calculate the normal vector for a polygon's surface

Question 27

In computer graphics, what is the main purpose of points when defining complex geometric shapes?

Accepted Answer

Establishing vertices and endpoints

Answer

Outlining shape boundaries

Answer

Defining surface properties

Question 28

Identify the graphic primitive commonly used to represent a specific location in space.

Accepted Answer

Point

Answer

Line

Answer

Polygon

Answer

Curve

Question 29

Which method should be utilized to draw a line segment connecting two points?

Accepted Answer

glBegin(GL_LINES);

Answer

glBegin(GL_POINTS);

Answer

glBegin(GL_TRIANGLES);

Answer

glBegin(GL_QUADS);

Question 30

Identify the technique employed to mitigate jagged edges on lines and curves.

Accepted Answer

Anti-aliasing

Answer

Dithering

Answer

Supersampling

Answer

Mipmapping

Question 31

Describe the primary purpose of a transformation matrix in computer graphics.

Accepted Answer

To apply transformations such as translation, rotation, scaling, or shearing to objects

Answer

To project objects onto a 2D plane

Answer

To define the perspective of a scene

Answer

To store the color values of pixels

Question 32

Which of the following is NOT a recognized type of projection in computer graphics?

Accepted Answer

Stereographic

Answer

Orthographic

Answer

Perspective

Answer

Isometric

Question 33

What is the purpose of anti-aliasing in computer graphics?

Accepted Answer

To remove jagged edges from lines and curves

Answer

To reduce the number of pixels required to display an image

Answer

To enhance the contrast between objects

Answer

To create realistic shadows

Question 34

What is the difference between a convex and a concave polygon?

Accepted Answer

Convex polygons have no inward-facing angles, while concave polygons do.

Answer

Concave polygons have no inward-facing angles, while convex polygons do.

Answer

Convex polygons have all angles less than 180 degrees, while concave polygons do not.

Answer

Concave polygons have all angles greater than 180 degrees, while convex polygons do not.

Question 35

Which of the following is a common method for filling polygons in computer graphics?

Accepted Answer

Scanline fill

Answer

Flood fill

Answer

Ray casting

Answer

Back-face culling

Question 36

What is the winding rule used to determine the interior of a polygon in computer graphics?

Accepted Answer

The polygon interior is the area to the left of the polygon when traversing the vertices in counterclockwise order.

Answer

The polygon interior is the area to the right of the polygon when traversing the vertices in clockwise order.

Answer

The polygon interior is the area enclosed by the polygon's edges.

Answer

The polygon interior is the area outside the polygon's edges.

Question 37

What is the primary purpose of a graphics pipeline in computer graphics?

Accepted Answer

To convert high-level graphics primitives into low-level instructions for the graphics hardware.

Answer

To manage the allocation and deallocation of memory used for graphics data.

Answer

To provide a standardized interface for different graphics applications.

Answer

To perform physics simulations for the objects in a scene.

Question 38

Which of the following is NOT considered a basic geometric shape used in computer graphics?

Accepted Answer

Image

Answer

Point

Answer

Line

Answer

Triangle

Question 39

What type of primitive shape is defined by a single coordinate in 2D space?

Accepted Answer

Dot

Answer

Line

Answer

Triangle

Answer

Pixel

Question 40

Which primitive shape is created by connecting two distinct points?

Accepted Answer

Line segment

Answer

Point

Answer

Triangle

Answer

Pixel

Question 41

What is the minimum number of points required to define a polygon?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 42

Which of the following accurately describes the process of rasterization?

Accepted Answer

Encompasses all of the above

Answer

Converts vector graphics into bitmap images

Answer

Utilizes a grid of pixels

Answer

Applies anti-aliasing to smooth edges

Question 43

What is the primary purpose of the Z-buffer algorithm in computer graphics?

Accepted Answer

Stores depth information

Answer

Determines which pixels are visible

Answer

Calculates lighting effects

Answer

Anti-aliases edges

Question 44

In computer graphics, which curve representation techniques are commonly used besides Bézier curves?

Accepted Answer

B-Splines

Accepted Answer

NURBS

Accepted Answer

Catmull-Rom splines

Question 45

Which of the following surface representation methods in computer graphics employs a tessellated mesh of triangles?

Accepted Answer

Tessellation

Answer

Ray tracing

Answer

Depth buffering

Question 46

Which of the following is NOT considered a basic graphics primitive?

Accepted Answer

Sphere

Answer

Polygon

Answer

Point

Answer

Line

Question 47

What type of graphics primitive is utilized to represent a closed shape with at least three sides?

Accepted Answer

Polygon

Answer

Line

Answer

Point

Question 48

What transformation can be applied to rotate a graphics primitive around a specified axis?

Accepted Answer

Rotation

Answer

Translation

Answer

Scaling

Answer

Shearing

Question 49

Which graphics primitive is most efficient for drawing a diagonal line?

Accepted Answer

Line

Answer

Ellipse

Answer

Rectangle

Answer

Point

Question 50

In SVG, what is the primary purpose of the 'fillRule' attribute?

Accepted Answer

To determine the method used to fill the interior of a shape.

Answer

To specify the opacity of a shape.

Answer

To control the stroke width of a shape.

Question 51

Which graphics primitive is used to create a curved shape defined by multiple control points?

Accepted Answer

Bezier curve

Answer

Line

Answer

Polygon

Question 52

What is the fundamental difference between a path and a shape in computer graphics?

Accepted Answer

A path represents a collection of connected line segments, while a shape represents a closed region enclosed by paths.

Answer

Paths are used for drawing, while shapes are used for filling.

Question 53

Which technique is commonly used to optimize the performance of graphics primitives?

Accepted Answer

Culling

Answer

Shading

Answer

Texturing

Answer

Anti-aliasing

Question 54

Describe the relationship between graphics primitives and pixels.

Accepted Answer

Graphics primitives are rendered onto a grid of pixels.

Answer

Pixels are not used in computer graphics.

Answer

Graphics primitives are independent of pixels.

Answer

Pixels are the fundamental building blocks of graphics primitives.