🧩 What is GLFW?

GLFW is a windowing and input library. It gives you an interface to the operating system.

🔹 It handles:

• Creating windows
• Setting up an OpenGL context
• Managing input (keyboard, mouse, etc.)
• Managing time, monitors, and events

📍 GLFW is the OS interface. It talks to Windows, Linux, or macOS to create windows and handle input.

🔧 What is GLAD?

GLAD is an OpenGL function loader. It gives you an interface to the GPU via OpenGL.

🔹 It handles:

• Loading OpenGL function pointers at runtime (because OpenGL is dynamically loaded)
• Giving you access to modern OpenGL functions (like glGenVertexArrays, glShaderSource, etc.)

📍 GLAD is the GPU interface. It makes sure you can actually call OpenGL functions that live on your GPU driver.

🛠️ Analogy:

Imagine building a graphics application: