Charlie

### libBoo **libBoo** is a cross-platform windowing and event manager similar to SDL and SFML, with additional 3D rendering functionality. The exclusive focus of libBoo is 2D/3D rendering using polygon-rasterization APIs like OpenGL or Direct3D. It exposes a unified command-queue API for calling the underlying graphics API. The only per-platform responsibility of the client code is providing the shaders' source. Drawing, resource-management and state-switching are performed using the unified API; these may be written once for all platforms. Client code is entered via the `appMain` method supplied in a callback object. This code executes on a dedicated thread with graphics command context available. The API may be used to synchronize loops on the client thread with the display refresh-rate. #### Supported Backends * OpenGL 3.3+ * Direct3D 11/12 * Metal 1.1 (OS X 10.11 only for now, iOS coming soon) * **[Coming soon]** OpenGL ES 3.0 * **[Coming soon]** Vulkan