Example use of LWGL in a LibGDX application to access OpenGL 4.6 features

gdx-lwjgl-gl4.6-example.java

import com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application;
import com.badlogic.gdx.backends.lwjgl3.Lwjgl3ApplicationConfiguration;

/** 
  Launches the desktop (LWJGL3) application.
  ** Need to configure the OpenGL version here **
*/
public class Lwjgl3Launcher {
	public static void main(String[] args) {
		createApplication();
	}

	private static Lwjgl3Application createApplication() {
		return new Lwjgl3Application(new Main(), getDefaultConfiguration());
	}

	private static Lwjgl3ApplicationConfiguration getDefaultConfiguration() {
		Lwjgl3ApplicationConfiguration configuration = new Lwjgl3ApplicationConfiguration();
		// NOTE: 3.2 is the highest supported version on MacOS!
    		// **********************************
		// * configuration.useOpenGL3(true, 4, 6);                      // pre libgdx 1.11.0
		// * configuration.setOpenGLEmulation(GLEmulation.GL30, 4, 6);  // since libgdx 1.11.0
    		// **********************************
		configuration.setTitle("Window Title");
		configuration.setBackBufferConfig(8, 8, 8, 8, 16, 0, 4);
		configuration.setWindowedMode(1280, 720);
		configuration.setWindowIcon("libgdx128.png", "libgdx64.png", "libgdx32.png", "libgdx16.png");
		return configuration;
	}
}

// -----------------------------------------------------

/**
  Now you can use the LWJGL classes to get an more modern OpenGL functions and constants
*/

import org.lwjgl.opengl.GL46;

public class GdxLwjglGl46Example {

    private void initializeBufferObjects() {
        buffers.vbo.positions = Gdx.gl.glGenBuffer();
        Gdx.gl.glBindBuffer(GL20.GL_ARRAY_BUFFER, buffers.vbo.positions);
        Gdx.gl.glBufferData(GL20.GL_ARRAY_BUFFER, buffers.positions_size, buffers.data.positions, GL20.GL_STATIC_DRAW);
        Gdx.gl.glBindBuffer(GL20.GL_ARRAY_BUFFER, 0);
        GL46.glBindBuffer(GL46.GL_SHADER_STORAGE_BUFFER, buffers.vbo.positions);
        GL46.glBufferStorage(GL46.GL_SHADER_STORAGE_BUFFER, buffers.data.positions, GL46.GL_MAP_WRITE_BIT | GL46.GL_DYNAMIC_STORAGE_BIT);
        GL46.glBindBuffer(GL46.GL_SHADER_STORAGE_BUFFER, 0);

        buffers.vbo.colors = Gdx.gl.glGenBuffer();
        Gdx.gl.glBindBuffer(GL20.GL_ARRAY_BUFFER, buffers.vbo.colors);
        Gdx.gl.glBufferData(GL20.GL_ARRAY_BUFFER, buffers.colors_size, buffers.data.colors, GL20.GL_STATIC_DRAW);
        Gdx.gl.glBindBuffer(GL20.GL_ARRAY_BUFFER, 0);
        GL46.glBindBuffer(GL46.GL_SHADER_STORAGE_BUFFER, buffers.vbo.colors);
        GL46.glBufferStorage(GL46.GL_SHADER_STORAGE_BUFFER, buffers.data.colors, GL46.GL_MAP_WRITE_BIT | GL46.GL_DYNAMIC_STORAGE_BIT);
        GL46.glBindBuffer(GL46.GL_SHADER_STORAGE_BUFFER, 0);

        buffers.vbo.density = Gdx.gl.glGenBuffer();
        GL46.glBindBuffer(GL46.GL_SHADER_STORAGE_BUFFER, buffers.vbo.density);
        GL46.glBufferStorage(GL46.GL_SHADER_STORAGE_BUFFER, buffers.data.density, GL46.GL_MAP_WRITE_BIT | GL46.GL_DYNAMIC_STORAGE_BIT);
        GL46.glBindBuffer(GL46.GL_SHADER_STORAGE_BUFFER, 0);

        buffers.vbo.pressure = Gdx.gl.glGenBuffer();
        GL46.glBindBuffer(GL46.GL_SHADER_STORAGE_BUFFER, buffers.vbo.pressure);
        GL46.glBufferStorage(GL46.GL_SHADER_STORAGE_BUFFER, buffers.data.pressure, GL46.GL_MAP_WRITE_BIT | GL46.GL_DYNAMIC_STORAGE_BIT);
        GL46.glBindBuffer(GL46.GL_SHADER_STORAGE_BUFFER, 0);

        buffers.vbo.forces = Gdx.gl.glGenBuffer();
        GL46.glBindBuffer(GL46.GL_SHADER_STORAGE_BUFFER, buffers.vbo.forces);
        GL46.glBufferStorage(GL46.GL_SHADER_STORAGE_BUFFER, buffers.data.forces, GL46.GL_MAP_WRITE_BIT | GL46.GL_DYNAMIC_STORAGE_BIT);
        GL46.glBindBuffer(GL46.GL_SHADER_STORAGE_BUFFER, 0);

        buffers.vbo.velocities = Gdx.gl.glGenBuffer();
        GL46.glBindBuffer(GL46.GL_SHADER_STORAGE_BUFFER, buffers.vbo.velocities);
        GL46.glBufferStorage(GL46.GL_SHADER_STORAGE_BUFFER, buffers.data.velocities, GL46.GL_MAP_WRITE_BIT | GL46.GL_DYNAMIC_STORAGE_BIT);
        GL46.glBindBuffer(GL46.GL_SHADER_STORAGE_BUFFER, 0);

        GL46.glBindBufferBase(GL46.GL_SHADER_STORAGE_BUFFER, 0, buffers.vbo.positions);
        GL46.glBindBufferBase(GL46.GL_SHADER_STORAGE_BUFFER, 1, buffers.vbo.density);
        GL46.glBindBufferBase(GL46.GL_SHADER_STORAGE_BUFFER, 2, buffers.vbo.pressure);
        GL46.glBindBufferBase(GL46.GL_SHADER_STORAGE_BUFFER, 3, buffers.vbo.forces);
        GL46.glBindBufferBase(GL46.GL_SHADER_STORAGE_BUFFER, 4, buffers.vbo.velocities);
        GL46.glBindBufferBase(GL46.GL_SHADER_STORAGE_BUFFER, 5, buffers.vbo.colors);
    }
  
}