RGL (Riley's OpenGL abstraction Layer)

As of 5/28/2024, RGL is no longer going to be actively updated

I will probably still respond to issues and pull requests, if any come up.

Simple OpenGL version abstraction layer based on RLGL.

• Allows you to use Modern OpenGL using the simple pipeline format.
• Allows you to switch between Modern OpenGL and Legacy OpenGL without changing the code.
• Allows you to load OpenGL 2.1, OpenGL 3.3, OpenGL ES, OpenGL ES2 or OpenGL 4.3
• Designed to be more lightweight and better performance than RLGL
• Modular can easily be changed to support non-OpenGL backends

Build statuses

Contacts

• email : ColleagueRiley@gmail.com
• discord : ColleagueRiley
• discord server : https://discord.gg/pXVNgVVbvh

Documentation

For documentation read the RGL.h file and check out the example in ./example

Most OpenGL legacy documentation and examples should also apply to RGLx

Implementing a new backend

To implement a new backend you'll have to.

• Init the backend in rglInit (loading shaders, other data)
• Implement a load/free texture system inside of rglCreateTexture, rglUpdateTexture and rglDeleteTextures
• Implement the backend's version of these functions,
  • rglViewport
  • rglClearColor
  • rglClear
  • rglViewport
  • rglClearColor
  • rglDepthFunc
  • rglCullFace
  • rglFrontFace
  • rglHint
  • rglEnable
  • rglPushPixelValues
  • rglTextureSwizzleMask
  • rglAtlasAddBitmap
• Render the data supplied to rglRenderBatchWithShader via the backend
• Ensure all of the backend's allocated data is freed in rglClose

known issues

• No EBO
• 3D rendering doesn't seem to work
• shader options need to be added/check

Credits

RLGL

This project was based on RLGL and RLGL was used as a reference for some of the code in this project.