Computer Graphics Quizzes: Master the Fundamentals of 2D and 3D Graphics

Question 1

In 3D computer graphics, which process converts 3D objects into 2D images?

Accepted Answer

Rasterization

Answer

Tessellation

Answer

Shading

Answer

Texturing

Question 2

Which transformation in computer graphics is not considered a rigid transformation?

Accepted Answer

Shear

Answer

Translation

Answer

Scaling

Answer

Rotation

Question 3

In the computer graphics pipeline, which stage converts the 3D scene into a 2D image?

Accepted Answer

Rendering

Answer

Vertex Shading

Answer

Tessellation

Answer

Fragment Shading

Question 4

Within the computer graphics pipeline, which stage converts a 3D scene into a 2D image?

Accepted Answer

Rendering

Answer

Modeling

Answer

Animation

Answer

Compilation

Question 5

Which stage is not part of the standard computer graphics pipeline?

Accepted Answer

Compilation

Answer

Modeling

Answer

Animation

Answer

Rasterization

Question 6

In the computer graphics pipeline, which step transforms 3D geometry into 2D pixels?

Accepted Answer

Rasterization

Answer

Modeling

Answer

Animation

Answer

Shading

Question 7

Which task falls outside the traditional computer graphics pipeline?

Accepted Answer

Printing 3D models

Answer

Creating textures for 3D models

Answer

Generating 3D models

Answer

Animating objects in a 3D scene

Question 8

In computer graphics, non-photorealistic rendering (NPR) techniques are used to create stylized or artistic images. Which of the following is a common NPR technique used to create cartoon-like images?

Accepted Answer

Toon shading

Answer

Ray tracing

Answer

Motion blur

Answer

Ambient occlusion

Question 9

In 3D modeling, which technique repeatedly divides and interpolates a mesh to create smooth surfaces from vertices and edges?

Accepted Answer

Subdivision surface modeling

Answer

Extrusion

Answer

Boolean operations

Answer

NURBS modeling

Question 10

In the computer graphics pipeline, which stage involves applying textures to 3D models?

Accepted Answer

Texture mapping

Answer

Path tracing

Answer

Collision detection

Question 11

Which stage is not part of the computer graphics pipeline?

Accepted Answer

File management

Answer

Modeling

Answer

Rendering

Answer

Animation

Question 12

In the rendering stage of a computer graphics pipeline, which technique estimates pixel colors by interpolating values from neighboring pixels?

Accepted Answer

Interpolation

Answer

Phong Shading

Answer

Z-buffering

Answer

Ray tracing

Question 13

In computer graphics, which of the following is NOT a type of light source used in lighting models?

Accepted Answer

Pixel light

Answer

Ambient light

Answer

Point light

Answer

Directional light

Question 14

In computer graphics, which technique is employed during the rendering stage to enhance the smoothness of curves by dividing line segments into smaller segments?

Accepted Answer

Anti-aliasing

Answer

Z-buffering

Answer

Phong shading

Answer

Texturing

Question 15

Which shading model determines the surface color at each pixel based solely on ambient and diffuse lighting, excluding specular reflection?

Accepted Answer

Ambient-only shading

Answer

Phong shading

Answer

Gouraud shading

Answer

Specular shading

Question 16

In the computer graphics pipeline, which stage transforms vector graphics into bitmap images?

Accepted Answer

Rasterization

Answer

Modeling

Answer

Texturing

Answer

Shading

Question 17

Which of the following is outside the scope of Computer Graphics?

Accepted Answer

Networking

Answer

3D modeling

Answer

Rendering

Question 18

In computer graphics, which shading technique calculates surface color based on the relative positions of the light source, surface normal, and camera?

Accepted Answer

Phong shading

Answer

Gouraud shading

Answer

Lambertian shading

Answer

Ambient shading

Question 19

In image processing, which technique modifies pixel values to improve image quality or reduce noise?

Accepted Answer

Image filtering

Answer

3D modeling

Answer

Texture mapping

Question 20

In image processing, which technique involves applying filters to modify an image's appearance, enabling tasks like sharpening edges and removing noise?

Accepted Answer

Image Filtering

Answer

Anti-Aliasing

Answer

Color Grading

Answer

Image Segmentation

Question 21

In computer graphics, what is the primary purpose of Gouraud shading?

Accepted Answer

Creating the illusion of depth and smooth color transitions on a polygon's surface

Answer

Enhancing rendering speed by minimizing calculations

Answer

Simulating realistic object movement within a scene

Question 22

In texture mapping, which technique is commonly used to handle textures that are larger than the surface they are applied to?

Accepted Answer

Texture tiling

Answer

Texture alpha blending

Answer

Texture cropping

Answer

Texture mirroring

Question 23

In 3D modeling, which technique involves connecting discrete points or control vertices with a smooth, continuous surface?

Accepted Answer

Interpolation

Answer

Extrusion

Answer

Boolean Operations

Answer

Ray Tracing

Question 24

Which transformation in computer graphics uniformly alters an object's size?

Accepted Answer

Scaling

Answer

Translation

Answer

Rotation

Question 25

Within the computer graphics pipeline, which stage combines polygonal primitives to form a cohesive 3D scene?

Accepted Answer

Geometry Assembly

Answer

Vertex Processing

Answer

Fragment Processing

Question 26

In texture mapping, which transformations are used to modify the size, direction, and position of a texture on an object's surface?

Accepted Answer

Translation, Rotation, and Scaling

Answer

Translation and Rotation

Answer

Scaling and Rotation

Question 27

In the computer graphics pipeline, which stage transforms the 3D scene into a collection of 2D primitives?

Accepted Answer

Geometry Assembly

Answer

Modeling

Answer

Rendering

Question 28

Which of the following is NOT a stage in the computer graphics pipeline?

Accepted Answer

Image manipulation

Answer

Modeling

Answer

Rasterization

Answer

Rendering

Question 29

Which of the following is not a core component of the computer graphics pipeline?

Accepted Answer

Physics simulation

Answer

3D modeling

Answer

Lighting

Answer

Rendering

Question 30

Which stage in the computer graphics pipeline does NOT involve creating or modifying the scene or its content?

Accepted Answer

Optimization

Answer

Modeling

Answer

Animation

Answer

Rendering

Question 31

In computer graphics, which technique simulates light's interaction with surfaces to create realistic images?

Accepted Answer

Ray tracing

Answer

Rasterization

Answer

Voxel-based rendering

Answer

Texture mapping

Question 32

Which of the following accurately describes current and emerging trends in computer graphics?

Accepted Answer

AI is revolutionizing computer graphics with new techniques for image processing, animation, and VR applications.

Answer

Real-time ray tracing, AI in graphics, and VR/AR technologies are not significant future trends.

Answer

Real-time ray tracing enhances 3D graphics but may not be widely adopted soon due to computational demands.

Answer

VR and AR technologies are still in early stages and their widespread adoption is expected in the distant future.

Question 33

Which data structure is typically used to store a collection of vertices in a computer graphics scene?

Accepted Answer

Array

Answer

Queue

Answer

Tree

Answer

Linked list

Question 34

What is the term for the method used to add realistic textures to 3D models?

Accepted Answer

Texturing

Answer

Bump mapping

Answer

Phong shading

Answer

Anti-aliasing

Question 35

What is the mathematical model used to represent the shape of a 3D object called?

Accepted Answer

Mesh

Answer

Polygon

Answer

Vertex

Answer

Texture map

Question 36

Keyframes are crucial in animation. Explain how they define the state of objects over time. Also, discuss interpolation techniques used to create smooth transitions between keyframes.

Accepted Answer

Keyframes define the state of objects at specific times, while interpolation techniques calculate the states in between, creating smooth motion.

Answer

Keyframes only define the start and end points, with interpolation techniques calculating all intermediate states.

Answer

Interpolation techniques are used to generate sound effects in animations and are not related to keyframes.

Answer

Keyframes are only used in 3D animations, while interpolation techniques are only used in 2D animations.

Question 37

Distinguish between polygonal modeling, NURBS modeling, and subdivision surface modeling. Elaborate on the advantages and disadvantages of each technique for constructing diverse 3D models.

Accepted Answer

For organic shapes, NURBS modeling is ideal, while polygonal modeling excels at hard-surface models due to its sharp edges and flat surfaces.

Accepted Answer

Subdivision surface modeling produces smoother surfaces than polygonal or NURBS modeling.

Answer

For creating highly detailed 3D models, polygonal modeling is the most efficient method.

Question 38

In 2D graphics, which of the following transformations is NOT fundamental?

Accepted Answer

Projection

Answer

Translation

Answer

Scaling

Answer

Rotation

Question 39

In 3D graphics, what is the primary purpose of a z-buffer?

Accepted Answer

To store depth information for each pixel

Answer

To calculate surface normals

Answer

To perform hidden surface removal

Answer

To apply textures to objects

Question 40

Which colour model is widely used in computer graphics for representing colours digitally?

Accepted Answer

RGB

Answer

CMYK

Answer

HSL

Answer

YUV

Question 41

What is a key advantage of using parametric surfaces in 3D modelling?

Accepted Answer

Enhanced flexibility and control over object shapes

Answer

Reduced storage requirements compared to polygon meshes

Answer

Faster rendering times

Answer

Improved texture mapping

Question 42

What is the primary role of a frame buffer in a graphics pipeline?

Accepted Answer

To store the rendered image

Answer

To perform rasterization

Answer

To calculate lighting effects

Answer

To handle user input

Question 43

What is the primary function of a graphics processing unit (GPU) in a computer graphics system?

Accepted Answer

To perform complex mathematical calculations required for graphics rendering

Answer

To store and manage textures and other graphics data

Answer

To handle user input and interactions

Answer

To display the rendered image on a monitor

Question 44

In 3D computer graphics, what is the primary advantage of using quaternions?

Accepted Answer

Representing rotations more efficiently than with Euler angles

Answer

Performing vector calculations more accurately

Answer

Handling perspective projections

Answer

Simulating rigid body dynamics

Question 45

What is the primary function of a geometric transformation matrix in computer graphics?

Accepted Answer

Applying transformations (e.g., translation, rotation, scaling) to objects

Answer

Storing color information for pixels

Answer

Defining the coordinates of vertices

Answer

Calculating lighting effects

Question 46

Which algorithm is commonly employed for scan-line conversion of straight lines?

Accepted Answer

Bresenham's algorithm

Answer

Flood-fill algorithm

Answer

Warnock's algorithm

Answer

Sutherland-Hodgman algorithm

Question 47

Differentiate between a vertex shader and a fragment shader:

Accepted Answer

Vertex shaders operate on vertices, while fragment shaders operate on pixels

Answer

Fragment shaders operate on vertices, while vertex shaders operate on pixels

Answer

Both operate on vertices

Answer

Both operate on pixels

Question 48

What is the primary advantage of utilizing a ray tracing algorithm for rendering?

Accepted Answer

Enhanced realism in shadows and reflections

Answer

Faster rendering speeds

Answer

Reduced memory requirements

Answer

Lower computational complexity

Question 49

What is the purpose of employing a hidden surface removal algorithm?

Accepted Answer

Determining surfaces visible to the camera

Answer

Calculating lighting effects on surfaces

Answer

Storing depth information for each pixel

Answer

Rendering the image on the screen

Question 50

Which file format is commonly used for storing 3D models?

Accepted Answer

OBJ

Answer

JPEG

Answer

PNG

Answer

GIF

Question 51

In computer graphics, what is the purpose of a bounding volume hierarchy (BVH)?

Accepted Answer

Accelerating ray tracing calculations

Answer

Improving mesh deformation performance

Answer

Optimizing texture mapping

Answer

Reducing memory consumption

Question 52

Which technique is commonly used to create realistic character animations?

Accepted Answer

Motion capture

Answer

Keyframing

Answer

Inverse kinematics

Answer

Procedural animation

Question 53

How are computer graphics and computer vision related?

Accepted Answer

They are deeply interconnected

Answer

They are independent fields

Answer

Computer graphics encompasses computer vision

Answer

Computer vision encompasses computer graphics

Question 54

Which of the following is NOT a primary stage in a computer graphics pipeline?

Accepted Answer

Simulation

Answer

Modeling

Answer

Animation

Answer

Rendering

Question 55

What type of projection preserves the parallelism of lines, creating an orthographic view?

Accepted Answer

Orthographic projection

Answer

Perspective projection

Answer

Isometric projection

Answer

Oblique projection

Question 56

What is the primary function of a vertex shader?

Accepted Answer

Transforming vertices and applying lighting calculations

Answer

Rasterizing primitives and generating fragments

Answer

Blending fragments and creating the final image

Answer

Storing and managing vertex data

Question 57

Which of the following is NOT a recognized method of texture mapping?

Accepted Answer

Phong shading

Answer

Diffuse mapping

Answer

Specular mapping

Answer

Normal mapping

Question 58

What is the primary function of a skeletal animation system?

Accepted Answer

Creating and controlling animations through a hierarchical structure of bones and joints.

Answer

Generating physically realistic animations.

Answer

Mixing and combining animations to achieve complex movements.

Answer

Storing and retrieving animations from a database.

Question 59

In 3D computer graphics, which matrix is used to perform rotation transformations?

Accepted Answer

Rotation Matrix

Answer

Translation Matrix

Answer

Scaling Matrix

Answer

Shear Matrix

Question 60

Which computer animation technique is ideal for generating realistic human movements, and what makes it superior for this purpose?

Accepted Answer

Motion capture

Answer

Keyframe animation

Answer

Procedural animation

Answer

Sprite animation

Question 61

In computational photography, which technique is NOT employed?

Accepted Answer

3D modeling

Answer

Image stitching

Answer

Image filtering

Answer

Tone mapping

Question 62

Which technique is not commonly used in medical imaging and visualization?

Accepted Answer

Facial Animation

Answer

Medical Imaging

Answer

Image Segmentation

Answer

Surgical Simulation

Question 63

In the graphics pipeline, what is the primary purpose of a vertex shader?

Accepted Answer

To manipulate vertices through transformations and lighting calculations

Answer

To compute shadows and other lighting effects

Answer

To perform texture mapping and blending

Answer

To rasterize polygons into fragments

Question 64

Which of the following is a widely used texture mapping method?

Accepted Answer

UV mapping

Answer

Normal mapping

Answer

Parallax mapping

Answer

Ray tracing