GLJFX

Embed JavaFX 8 Scene in an OpenGL+GLFW context.

This project uses internal Java8 APIs and will not work on Java9+

Using this code/Licence

This project is probably not going to receive much maintenance and can be considered abandoned. It is therefore licensed under The Unlicense as public domain. If you want to include any of this code in any project, please copy and paste the code from the demo package into your package structure.

How it Works

JavaFX has an Embedded Window object that can be extended to grab redraw events.

A getPixels operation is done on redraw and uploaded to an OpenGL texture.

Beyond Java8

It would probably be best to look at OpenJFX Github GLFXStage depends on com.sun.javafx.embed package from javafx.graphics module.

This would require adding the Java Command Line Argument:

--add-exports javafx.graphics/com.sun.javafx.embed=name_of_this_module

For distribution use, this looks like it would require using a bootstrap compiler on this module to add the needed export. Then to programmatically access the internal API: in a static block, fetch the Module javafx.graphics and add export to this module. Probably something like:

ModuleLayer.boot()
  .findModule("javafx.graphics")
  .orElseThrow(() -> new RuntimeException("Unable to find module \"javafx.graphics\"!")
  .addExports("com.sun.javafx.embed", GLFXStage.class.getModule());

Besides that, it looks like the internal API didn't change much from OpenJFX8 to OpenJFX11.