You can access OpenGL via the Erlang standard library’s :gl module.
I found a good blog post about this but it’s from 2016 and some of the code needed sprucing up to run on modern Erlang / Elixir / wxWidgets versions. Repo for that version is GitHub - al2o3cr/elixir_opengl: Demo app for interacting with OpenGL from Elixir · GitHub
