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---
category: tool
tool: raylib
filename: learnraylib.c
contributors:
- ["Nikolas Wipper", "https://notnik.cc"]
---
**raylib** is a cross-platform easy-to-use graphics library, built around
OpenGL 1.1, 2.1, 3.3 and OpenGL ES 2.0. Even though it is written in C
it has bindings to over 50 different languages. This tutorial will use C,
more specifically C99.
```c
#include <raylib.h>
int main(void)
{
const int screenWidth = 800;
const int screenHeight = 450;
// Before initialising raylib we can set configuration flags
SetConfigFlags(FLAG_MSAA_4X_HINT | FLAG_VSYNC_HINT);
// raylib doesn't require us to store any instance structures
// At the moment raylib can handle only one window at a time
InitWindow(screenWidth, screenHeight, "MyWindow");
// Set our game to run at 60 frames-per-second
SetTargetFPS(60);
// Set a key that closes the window
// Could be 0 for no key
SetExitKey(KEY_DELETE);
// raylib defines two types of cameras: Camera3D and Camera2D
// Camera is a typedef for Camera3D
Camera camera = {
.position = {0.0f, 0.0f, 0.0f},
.target = {0.0f, 0.0f, 1.0f},
.up = {0.0f, 1.0f, 0.0f},
.fovy = 70.0f,
.type = CAMERA_PERSPECTIVE
};
// raylib supports loading of models, animations, images and sounds
// from various different file formats
Model myModel = LoadModel("my_model.obj");
Font someFont = LoadFont("some_font.ttf");
// Creates a 100x100 render texture
RenderTexture renderTexture = LoadRenderTexture(100, 100);
// WindowShouldClose checks if the user is closing the window
// This might happen using a shortcut, window controls
// or the key we set earlier
while (!WindowShouldClose())
{
// BeginDrawing needs to be called before any draw call
BeginDrawing();
{
// Sets the background to a certain color
ClearBackground(BLACK);
if (IsKeyDown(KEY_SPACE))
DrawCircle(400, 400, 30, GREEN);
// Simple draw text
DrawText("Congrats! You created your first window!",
190, // x
200, // y
20, // font size
LIGHTGRAY
);
// For most functions there are several versions
// These are usually postfixed with Ex, Pro, V
// or sometimes Rec, Wires (only for 3D), Lines (only for 2D)
DrawTextEx(someFont,
"Text in another font",
(Vector2) {10, 10},
20, // font size
2, // spacing
LIGHTGRAY);
// Required for drawing 3D, has 2D equivalent
BeginMode3D(camera);
{
DrawCube((Vector3) {0.0f, 0.0f, 3.0f},
1.0f, 1.0f, 1.0f, RED);
// White tint when drawing will keep the original color
DrawModel(myModel, (Vector3) {0.0f, 0.0f, 3.0f},
1.0f, //Scale
WHITE);
}
// End 3D mode so we can draw normally again
EndMode3D();
// Start drawing onto render texture
BeginTextureMode(renderTexture);
{
// It behaves the same as if we just called `BeginDrawing()`
ClearBackground(RAYWHITE);
BeginMode3D(camera);
{
DrawGrid(10, // Slices
1.0f // Spacing
);
}
EndMode3D();
}
EndTextureMode();
// render textures have a Texture2D field
DrawTexture(renderTexture.texture, 40, 378, BLUE);
}
EndDrawing();
}
// Unloading loaded objects
UnloadFont(someFont);
UnloadModel(myModel);
// Close window and OpenGL context
CloseWindow();
return 0;
}
```
## Further reading
raylib has some [great examples](https://www.raylib.com/examples.html)
If you don't like C check out the [raylib bindings](https://github.com/raysan5/raylib/blob/master/BINDINGS.md)
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