GBL(Opengles Box Library for native GUI on windows, linux, android, iOS etc)

GBL is not a render engine, just a simple EGL wrapper for quickly integrating opengles code on multi-platform without no opengl env.

We use it in our VR & AR products.

• support online render(render in screen directly) and offline render(render on texture and output into an image)
• EGL for native GUI windows binding
• c++11
• OpenGL ES 2.0 and 3.x
• WebGL 1.0 (compiled using Emscripten)

• EGL 1.4(angle for windows)
• libyuv

• see build/cmake4*.sh

• MIT