🎨 Computer Graphics in C++

Learning computer graphics from the ground up with C++ and OpenGL/GLUT. From basic 2D shapes to 3D transformations.

🖼️ See Rendered Examples

3D Cube

Mathematical Curves

Regular Polygons

Data Visualization (Pie Chart)

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📁 Project Structure

├── Simple shapes and lines/    # Basic 2D primitives
├── Advanced Geometrics/        # Complex polygons, filled shapes
├── Curves/                     # Mathematical curves (polar coordinates)
└── Three Dimentional Drawing/  # 3D rendering with depth buffer

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🧊 3D Graphics

Colored Cube

Demonstrates:

• Perspective projection with gluPerspective
• Depth buffering (GL_DEPTH_TEST)
• Per-face vertex coloring
• 3D transformations (translate, rotate)

glTranslatef(0.0, 0.0, -5.0);
glRotatef(30, 1.f, 1.f, 0.f);

glBegin(GL_QUADS);
  glColor3f(0.0f, 1.0f, 0.0f); // Green
  glVertex3f(-0.5f, -0.5f, 0.5f);
  glVertex3f( 0.5f, -0.5f, 0.5f);
  // ...
glEnd();

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📐 Mathematical Curves

Curves rendered using polar coordinate equations:

Curve	Equation
Limacon	r = a·cos(θ) + b
Cardioid	r = a·(1 + cos(θ))
Three-Leaf	r = a·cos(3θ)
Four-Leaf	r = a·cos(2θ)
Spiral	r = a·θ

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🛠️ Building

# Install dependencies (Ubuntu/Debian)
sudo apt install freeglut3-dev libgl1-mesa-dev

# Compile a program
g++ -o cube "Three Dimentional Drawing/shape2-Cube.cpp" -lGL -lGLU -lglut

# Run
./cube

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📚 Topics Covered

• 2D Graphics: Lines, polygons, transformations
• 3D Graphics: Cubes, perspective, depth buffering
• Curves: Bezier, polar coordinate equations
• Animation: Timer callbacks, double buffering
• Math: Matrix transformations, trigonometry

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Author

Asim Osman — Portfolio | GitHub