Computer Graphics ELC 4511 Overview
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Questions and Answers

What is the primary focus of the first week in the Computer Graphics course?

  • Graphic System (correct)
  • Lighting, Shading and Color
  • Hidden lines and surfaces
  • Animation

Which of the following aspects does the science and art of computer graphics NOT encompass?

  • Human-computer interaction
  • Physics modeling light
  • Mathematics describing shapes
  • Biology of visual perception (correct)

How many hours are allocated for the midterm exam in the Computer Graphics course schedule?

  • 6 hours
  • 2 hours (correct)
  • 1 hour
  • 4 hours

Which topic in the course spans the longest time frame?

<p>Drawing Fundamental Shapes (D)</p> Signup and view all the answers

Which elements combine to enhance the effectiveness of visual communication in computer graphics?

<p>Human perception and Art (B)</p> Signup and view all the answers

Which of the following is not a form of design mentioned?

<p>Data Visualization (B)</p> Signup and view all the answers

What field involves the use of Computer Graphics for creating visual representations of biological structures?

<p>Molecular biology (B)</p> Signup and view all the answers

In the realm of Computer Graphics, what is the main function of graphical primitives?

<p>To represent basic shapes (C)</p> Signup and view all the answers

Which application area does NOT utilize simulation?

<p>Web Design (C)</p> Signup and view all the answers

What does the term 'Framebuffer' refer to in Computer Graphics?

<p>A storage for pixel data (A)</p> Signup and view all the answers

Which of the following is closely associated with the output of pixel values?

<p>Graphics system (D)</p> Signup and view all the answers

Which of the following activities would most likely involve User Interfaces?

<p>Web Design (A)</p> Signup and view all the answers

Which type of Computer Graphics application focuses mainly on creative expression?

<p>Digital Art (B)</p> Signup and view all the answers

Which component of the graphics pipeline is responsible for converting model coordinates to world coordinates?

<p>Coordinate Transformations (A)</p> Signup and view all the answers

What is the role of the Fragment Processor in the graphics pipeline?

<p>Perform shading and texture mapping (C)</p> Signup and view all the answers

Which transformation is used to convert coordinates for perspective projection?

<p>Perspective Transformation (C)</p> Signup and view all the answers

In the graphics rendering pipeline, which step is typically performed after hidden surface removal?

<p>Shading and Texturing (D)</p> Signup and view all the answers

Which type of graphics architecture emphasizes a streamlined and efficient processing of graphics objects?

<p>Pipeline Architecture (B)</p> Signup and view all the answers

What is the maximum number of colors that can be represented by a system with 8 bits?

<p>256 (B)</p> Signup and view all the answers

In a system with 3*12-bit color depth, how many colors can it represent?

<p>68 billion (C)</p> Signup and view all the answers

Which operation is crucial for eliminating surfaces not visible to the camera in computer graphics?

<p>Back face Culling (A)</p> Signup and view all the answers

What primarily defines the data exchanged between an application and the graphics library?

<p>Application Programming Interface (API) (C)</p> Signup and view all the answers

What functionality does the electrical field provide in an LCD display?

<p>It controls the liquid crystal polarization. (C)</p> Signup and view all the answers

Which of the following statements correctly describes how a plasma panel operates?

<p>It uses voltages to energize embedded gases. (D)</p> Signup and view all the answers

Which step in the graphics rendering pipeline occurs before transforming to screen space?

<p>Clipping (D)</p> Signup and view all the answers

What is the primary bit depth representation for a binary image?

<p>1-bit (A)</p> Signup and view all the answers

What is the purpose of the Vertex Coloring process in the graphics pipeline?

<p>Assign colors to vertices for shading (B)</p> Signup and view all the answers

Which element in the graphics pipeline is responsible for converting three-dimensional coordinates to two-dimensional pixels?

<p>Rasterizer (C)</p> Signup and view all the answers

How many levels of colors can be achieved with a 3*8-bit color depth?

<p>16 million (A)</p> Signup and view all the answers

What is the primary role of the electrical signals in the grid setup of output devices?

<p>To control light emission. (B)</p> Signup and view all the answers

Which color depth allows for grayscale representation?

<p>8-bit (A)</p> Signup and view all the answers

Flashcards

Computer Graphics

The science and art of creating and manipulating visual content using computers, encompassing 2D and 3D images.

Graphic System

The fundamental components and processes involved in computer graphics, including input, processing, and output.

Drawing Fundamental Shapes

The basic techniques used to create and manipulate shapes for graphic design.

Shape Transformation

Changing the size, position, or orientation of shapes in a graphic.

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Animation

Techniques for creating the illusion of moving images.

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Programmer's Interface

The way programmers interact with computer graphics libraries and hardware.

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Graphics Architectures

Different ways computers are designed to handle graphics.

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Early Graphics Systems

Older computer methods for generating images.

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Display Processors

Hardware components that manage screen output.

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Pipeline Architectures

Step-by-step processes for graphic rendering.

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Graphics Object Pipeline

Series of actions that transform graphical elements.

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Vertices

Points in the initial graphical object.

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Model Object Space

Initial coordinates and data representation of an object.

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Rendering Pipeline Stages

Specific stages involving object transformation, lighting, output.

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Graphics Rendering Pipeline

An organized process of transforming graphical objects into viewable images.

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Computer Graphics

The use of computer systems to create and manipulate images and visual content.

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Display of Information

Presenting data visually, like maps or medical images.

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Simulation

Creating a virtual model of a real-world system to study its behavior.

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Animation

Creating the illusion of movement by displaying a sequence of still images.

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User Interfaces

The way users interact with a computer system, often visually.

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CAD (Computer-Aided Design)

Software used to create 2D or 3D designs.

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Graphics System

The hardware and software that generate images on a display.

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Framebuffer

The computer memory area that holds the image data for display.

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Framebuffer Depth

The number of bits used to represent the color of each pixel in a framebuffer.

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Color Depth

The number of bits used to represent the color of a pixel.

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1-bit depth

Produces a binary black and white image.

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8-bit depth

Produces a grayscale image with 256 possible shades of gray.

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24-bit depth

Represents true color images with millions of colors.

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Output Devices

Devices used to display images or information.

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LED displays

Light-emitting diode displays. Electrical signals turn diodes on/off.

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LCD displays

Liquid crystal displays. Electrical field controls light polarization.

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Study Notes

Course: Computer Graphics (ELC 4511)

  • Course Overview: This course covers computer graphics, including graphic systems, shapes transformation, hidden lines, surfaces, animation, lighting, shading, color, application projects, and exams.

Course Schedule

  • Week 1: Graphic System (2 hours)
  • Weeks 2-4: Drawing Fundamental Shapes (6 hours)
  • Weeks 5-6: Shapes Transformation (4 hours)
  • Weeks 7: Midterm Exam (4 hours)
  • Weeks 8-9: Hidden lines and surfaces (4 hours)
  • Weeks 10-11: Animation (4 hours)
  • Week 12: Lighting, Shading, and Color (2 hours)
  • Week 13: Application Project (2 hours)
  • Week 14: Oral + Practical Exam (2 hours)
  • Week 15: Final Exam

Introduction to Computer Graphics

  • Definition: The science and art of communicating visually using computers (2D or 3D).
  • Disciplines Involved: Physics (light simulation), Mathematics (shapes), Human perception, Engineering (optimizing resources), Human-Computer Interaction (HCI), Graphic Design, and Art.
  • Purpose: To enhance visual communication effectiveness.

Computer Graphics Applications

  • Display of Information: Visualization of data, presentations, and infographics.
  • Design: Computer-aided design (CAD), graphic design, web design, digital art.
  • Simulation and Animation: Modeling physical phenomena, creating motion graphics.
  • User Interfaces: Interactive design elements (e.g., websites and mobile apps).
  • Games: Rendering interactive environments and characters.
  • Virtual Reality (VR): Immersive 3D experiences.
  • Medical Imaging: X-ray, MRI, CT, and PET scan visualizations.
  • Molecular Biology: Modeling and visualizing molecular structures.
  • Geographic Information Systems (GIS): Map-based representations of the world.

Graphics System

  • Components: CPU, GPU, RAM, input devices, framebuffer.
  • Processor graphic functions: Graphics application, graphical primitives, pixel values and framebuffer.
  • Pixels and Frame Buffer: Resolution (no. of pixels), depth (bit precision), associated colors.

Output Devices

  • Types: TVs, computer monitors, LED displays LCD displays, and Plasma displays.
  • Operation: Use of horizontal and vertical grids, electronics and light-emitting diodes (LEDs).

Graphics Architectures

  • Early Systems: Host system digitally sends data to another device for image display.
  • Display Processors: Separate processors manage image display.
  • Pipeline Architecture: Data processing involves multiple stages.
  • Graphics Pipeline: Coordinate, transformation, clipper, rasterizer, fragment processor.

The Programmer's Interface

  • Tools and Software: Autodesk AutoCAD LT, design software and tools for graphical applications.
  • API and Drivers: Interfaces for graphics libraries, and drivers that facilitate software interaction with hardware.

Color Depth

  • Bits: 1-bit, 8-bit, 12-bit, 16-bit and other color representation possibilities
  • Colors: Binary, grayscale, True-color (RGB).

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Related Documents

Computer Graphics L01 PDF

Description

Explore the fundamentals of computer graphics in this course. Topics include graphic systems, shape transformations, hidden lines, animation, and lighting. Prepare for practical and theoretical assessments throughout the schedule.

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