Computer Graphics - OpenGL

A collection of Computer Graphics lab assignments and projects built with C++ and OpenGL, completed as part of the Computer Science curriculum at the Islamic University of Gaza (IUG). These programs demonstrate fundamental graphics programming concepts including 2D/3D rendering, geometric transformations, and interactive graphics.

🚀 Projects Included

File	Description
DrawCircle.txt	Draw a circle using OpenGL primitives
Filling.txt	Shape filling algorithms
Flurry.txt	Flurry/particle animation effect
Game.txt	Simple interactive game with OpenGL
House_Tree_Sun.txt	2D scene rendering (house, tree, sun)
Mouse Click #6.txt	Mouse event handling and interaction
Rectangles Color.txt	Colored rectangle rendering
Tic_Tac_Toe.txt	Interactive Tic-Tac-Toe game
case2-Clipping.txt	Line/shape clipping algorithms
parameterizedHouse.txt	Parameterized/scalable house rendering
street loop.txt	Animated street scene
Case Study 2-6-6.txt	Case study exercises

🛠 Tech Stack

Technology	Usage
C++	Programming language
OpenGL	Graphics API
GLUT / freeglut	Windowing and input

💡 Concepts Demonstrated

• 2D primitive rendering — points, lines, circles, polygons
• • Geometric transformations — translation, rotation, scaling
  • • Scene composition — building complex images from primitives
    • • Mouse and keyboard interaction — event-driven OpenGL programming
      • • Animation loops — idle function callbacks for movement
        • • Clipping algorithms — Cohen-Sutherland and related techniques
          • • Color manipulation — RGBA color models

            • • Game logic — Tic-Tac-Toe state management with OpenGL rendering

              • ▶️ Running the Projects

              • Each file contains C++ source code for an OpenGL program. To compile and run:

              • # Install OpenGL and GLUT (Linux)
                sudo apt-get install freeglut3-dev
                
                # Compile (example)
                g++ -o output DrawCircle.cpp -lGL -lGLU -lglut
                ./output

                On Windows, use Code::Blocks or Visual Studio with the appropriate OpenGL/GLUT libraries.

                🎓 Academic Context

                These projects were completed as part of the Computer Graphics course at the Islamic University of Gaza (IUG), covering both theoretical foundations and hands-on OpenGL programming.

                👤 Author

                Moath A. Mushtaha

                • GitHub: @moathmushtaha

                • • University: Islamic University of Gaza (IUG)

                  • 📄 License

                  • MIT