| Interface | Description | 
|---|---|
| GL | Baseline GL methods that must be available on all platforms. | 
| GL2 | GL functions only available on vanilla desktop OpenGL 2. | 
| GL3 | GL functions only available on vanilla desktop OpenGL 3.0+. | 
| GL4 | GL functions only available on vanilla desktop OpenGL 4.0. | 
| GLES_30 | GL functions and constants only available on vanilla OpenGL ES 3.0. | 
| GLExt | GL functions provided by extensions. | 
| GLFbo | Framebuffer object functions. | 
| Class | Description | 
|---|---|
| GLDebug | |
| GLDebugDesktop | |
| GLDebugES | |
| GLImageFormat | Describes an OpenGL image format. | 
| GLImageFormats | Generates a table of supported image formats for a given renderer caps. | 
| GLRenderer | |
| GLTiming | |
| GLTimingState | |
| GLTracer | Utility class that allows tracing of OpenGL calls generated by the engine. |