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A minimum setup for calling OpenGL from Elixir

This is the code from "Getting started with OpenGL in Elixir" updated to run on Erlang 25 and Elixir 1.13.

Specific changes:

  • added :wx to extra_applications in mix.exs
  • silenced a warning about export_all from Erlang
  • adjusted the usage of :wxGLCanvas.setCurrent to reflect the new calling convention (post-wxWidgets 2.9)

Installation

If you use asdf to manage versions, make sure to have the prerequisites for using :wx installed before installing Erlang or the library will not be available.

On OS X, brew install wxmac should be sufficient.

Usage

Start iex with the application loaded:

iex -S mix

Then start the application:

ElixirOpengl.start_link()