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Introduction to Computer Graphics

Introduction to Computer Graphics. SEN 991 - Introduction to OpenGL Graphics Applications. Overview. These lectures accompany the textbook by Ed Angel, Interactive Computer Graphics, A Top-down Approach with OpenGL (Fourth Edition), Addison-Wesley

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Introduction to Computer Graphics

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  1. Introduction to Computer Graphics SEN 991 - Introduction to OpenGL Graphics Applications

  2. Overview • These lectures accompany the textbook by Ed Angel, Interactive Computer Graphics, A Top-down Approach with OpenGL (Fourth Edition), Addison-Wesley • This class will cover Chapters 1-6 in detail and survey Chapters 7-12 • Each .ppt file corresponds to one 50 minute lecture (a few require a bit more time)

  3. Objectives • Broad introduction to Computer Graphics • Software • Hardware • Applications • Top-down approach • OpenGL

  4. Prerequisites • Good programming skills in C (or C++) • Basic Data Structures • Linked lists • Arrays • Geometry • Simple Linear Algebra

  5. Requirements • 4 Assigned Projects • Simple • Interactive (2) • 3D • See www.bhecker.com for assignments and course materials.

  6. Resources • Can run OpenGL on any system • Windows • Linux • Mac • Get GLUT from web if needed

  7. References • Other helpful references • OpenGL: A Primer, Ed Angel, Addison-Wesley, (Second Edition), 2005 • Designed for students who need more programming information • The OpenGL Programmer’s Guide (the Redbook) and the OpenGL Reference Manual (The Blue book), Addison-Wesley, • The definitive references

  8. Web Resources • Great source of examples and information at: www.opengl.org • PowerPoint lecture notes at www.bhecker.com

  9. Outline: Part 1 • Part 1: Introduction • Text: Chapter 1 • Lectures 1-3 • What is Computer Graphics? • Applications Areas • History • Image formation • Basic Architecture

  10. Outline: Part 2 • Part 2: Basic OpenGL • Text: Chapters 2-3 • Lectures 4-9 • Architecture • GLUT • Simple programs in two and three dimensions • Interaction

  11. Outline: Part 3 • Part 3: Three-Dimensional Graphics • Text: Chapters 4-6 • Lectures 10-20 • Geometry • Transformations • Homogeneous Coordinates • Viewing • Shading

  12. Outline: Part 4 • Part 5: Implementation • Text: Chapter 7 • Lectures: 21-23 • Approaches (object vs image space) • Implementing the pipeline • Clipping • Line drawing • Polygon Fill • Display issues (color)

  13. Outline: Part 5 • Part 4: Discrete Methods • Text: Chapter 8 • Lectures 24-27 • Buffers • Bitmaps and Pixel Maps • Texture Mapping • Compositing and Transparency

  14. Outline: Part 6 • Part 6: Programmable Pipelines • Text: Chapter 9 • Lectures 28-30 • Shading Languages • GLSL • Vertex Shaders • Fragment Shaders

  15. Outline: Part 7 • Part 7: Hierarchy • Text: Chapter 10 • Lectures: 31-34 • Tree Structured Models • Traversal Methods • Scene Graphs

  16. Outline: Part 8 • Part 8: Curves and Surfaces • Text: Chapter 11 • Lectures: 35-39

  17. Outline: Part 9 • Part 9: Advanced Rendering • Text: Chapter 12 • Lectures: 40-42

  18. Extra Lectures • Marching Squares • Virtual Trackball • Display Issues • Fractals • Sampling and Aliasing • Bump Mapping • Environment Mapping • Reflection and Transmission

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