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Introduction to OpenGL Programming: Course Overview and Learning Strategies

Welcome to the OpenGL course led by Alireza Moghaddam at Humber College. In this course, you will explore the fundamentals of OpenGL through lectures, assignments, projects, and exams. Key resources include the "OpenGL SuperBible" by Richard S. Wright. The grading scheme consists of assignments (20%), project (20%), mid-term (25%), and final exam (35%). Emphasis is placed on hands-on practice and understanding concepts such as matrices and transformations. Office hours are available for additional support. Let's work together to master OpenGL programming!

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Introduction to OpenGL Programming: Course Overview and Learning Strategies

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  1. Welcome Alireza Moghaddam http://mycourses.humber.ca alireza@cse.yorku.caalireza.moghaddam@humber.ca Alireza Moghaddam Humber College Lecture1 Game 540

  2. Course Material Assignments, Labs, Practice Tests, Quiz, Exam Extra Text: Wright, Richard S., 2011   OpenGL superbible : comprehensive tutorial and reference” Good to have, but not needed for this course.

  3. Course Material (2) • I’ll introduce some resources corresponding to each chapter: • Source codes, 3D models, examples, etc. • You are more than welcome to examine them at home to understand the material better. • But, never use them for your labs, assignments or projects. (No Copy & paste)

  4. Grading Scheme Assignments: 4 x 5% = 20% Project: 20% Mid-Term: 25% Final: 35% Do not wait for the deadlines to come. Sometimes, debugging may take lots of time.

  5. Practice • The best way to become an expert in OpenGL is: • To read and understand • To exercise • Try to understand the infrastructure. • Review matrices, Matrix operations, Rotation, Translation, etc.

  6. Office Hours • I’m always here to help you. • You can always contact me by email. • I try to be a fast responder  • You will get a reply by not more than a day. • My office hours will be ???????

  7. Together • Ask me anything! • Class material • Help YOU solve the assignment questions. • Material missed from previous courses

  8. Useful Learning Techniques Before reading the solutions to the assignments. • Work hard on solving them on your on. • Study the text and slides. • Get help, but not answers from friends, Instructor, …

  9. Useful Learning Techniques After reading the solutions to the assignments. • Study the solutions. • Understand the solutions. • Memorize the solutions. • The questions on the tests will be different. • But the answers will be surprisingly close.

  10. Useful Learning Techniques Please ask questions!

  11. OpenGL • Software Interface to graphics hardware • OpenGL library (200 commands) • Hardware independent interface • Contains geometric primitives: • Points • Lines • Polygons

  12. OpenGL Utility Library (GLU) • Sophisticated Library (extends OpenGL) • Contains 50 commands • Provides modeling features • Quadric surfaces • NURBS (Non-Uniform Rational B-Spline) • Standard part of every OpenGL library

  13. NURB

  14. OpenGL Rendering Pipeline

  15. Rendering Pipeline • Evaluators • Deriving vertices from basis functions • Vertices can be used to represent a surface • Per-Vertex Operations • Converts vertices into primitives i.e. line, polygon, etc. • Does mathematical operations, i.e. transformation, rotation, projection, etc.

  16. Rendering Pipeline • Rasterization: Conversion of geometric and pixel data into fragments. • Each fragment corresponds to a pixel in frame buffer. • When creating models, many parameters have to be considered, e.g. shading model, color, point size, etc.

  17. Fragment Operations • Before a fragment be placed in frame buffer, the following can be controlled: • Texture Mapping • Fog calculations • Alpha Test, depth buffer test • Blending, masking, etc.

  18. OpenGL Command Syntax • Start with glCaptial letter e.g. glVertex • Followed by the number of parameters, e.g. glVertex3 • Followed by type of parameters, e.g. glVertex3f(1.0, 2.0, 3.0) • Constants start with GL_, e.g. GL_COLOR_BUFFER_BIT

  19. Next Session OpenGL 2D Programming Introduction

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