OpenGL graphics rendering library for embedded systems, version 2.0

This is a low-level wrapper, it can be useful for developers already familiar with the C API of OpenGL. Most developers will prefer to use the higher level graphic API gammit.

Defines the annotations glsl_vertex_shader and glsl_fragment_shader applicable on string literals to check shader code using glslangValidator. The tool must be in PATH. It can be downloaded from https://www.khronos.org/opengles/sdk/tools/Reference-Compiler/

Most services of this module are a direct wrapper of the underlying C library. If a method or class is not documented in Nit, refer to the official documentation by the Khronos Group at: http://www.khronos.org/opengles/sdk/docs/man/