Opengl(Graphics Library)

1. Cross-Platform: Works on multiple operating systems, including Windows, macOS, and Linux.

2. Hardware Acceleration: Utilizes GPU hardware for fast and efficient rendering.

3. Graphics Pipeline: Defines a pipeline for processing graphical data, from geometry to pixel rendering.

4. Shader Support: Allows customization of rendering effects through programmable shaders.

Before learning OpenGL (Graphics Library), it's helpful to have:

1. Programming Fundamentals: Understanding of programming basics like variables, loops, and functions.

2. Mathematics: Familiarity with linear algebra and trigonometry for 3D graphics calculations.

3. Computer Graphics Concepts: Knowledge of basic graphics concepts like coordinate systems, transformations, and rasterization.

4. C/C++ Programming: Proficiency in C or C++ programming languages, as OpenGL is primarily used with these languages.

By learning OpenGL (Graphics Library), you gain:

1. Graphics Programming: Proficiency in programming graphics applications, including rendering 2D and 3D scenes.

2. Computer Graphics Knowledge: Understanding of fundamental graphics concepts like transformations, lighting, and shading.

3. Cross-Platform Development: Ability to develop graphics applications that run on various platforms, including Windows, macOS, and Linux.

4. GPU Programming: Experience in leveraging GPU hardware for accelerated graphics rendering.