raylib is a highly modular library. Everything is contained within a small number of well defined, specific and self-contained modules, each organized according to its primary functionality (nicely avoiding the huge tree of recursive dependencies, typical of other C libraries).
- [`rmodels`](https://github.com/raysan5/raylib/blob/master/src/rmodels.c): 3D models loading and drawing.
- [`raudio`](https://github.com/raysan5/raylib/blob/master/src/raudio.c): Audio device management and sounds / music loading and playing.
Those seven modules share a common header, named [`raylib.h`](https://github.com/raysan5/raylib/blob/master/src/raylib.h). All API functions are defined in that header, despite being internally divided into seven modules, so the user only needs to include `raylib.h` to access all of the raylib functionality. Other libraries often use a header for every module (so users can select the ones they need), but this complicates the dependencies. The simple approach that raylib adopts is just easier for novice (and expert) users.
Those seven modules share a common header, named [`raylib.h`](https://github.com/raysan5/raylib/blob/master/src/raylib.h). All API functions are defined in that header, despite being internally divided into seven modules, so the user only needs to include `raylib.h` to access all of the raylib functionality. Other libraries often use a header for every module (so users can select the ones they include), but this complicates the dependencies. The simple approach that raylib adopts is just easier for novice (and expert) users.
Beyond the seven main modules that are described above, there is a small collection of additional modules that implement extra features:
- [`raymath`](https://github.com/raysan5/raylib/blob/master/src/raymath.h): Vector2, Vector3, Matrix and Quaternion math related functions.
- [`rcamera`](https://github.com/raysan5/raylib/blob/master/src/rcamera.h): 3D Camera system (free, 1st person, 3rd person, custom).