public void compositeVAO(int width, int height) {
        float[] vertices = new float[] {
            -1.0f, 1.0f,
            -1.0f, -1.0f,
            1.0f, 1.0f,
            1.0f, -1.0f
        };

        FloatBuffer verts = BufferUtils.createFloatBuffer(vertices.length);
        verts.put(vertices);
        verts.flip();

        vao = glGenVertexArrays();
        glBindVertexArray(vao);

        int vbo = glGenBuffers();
        glBindBuffer(GL_ARRAY_BUFFER, vbo);
        glBufferData(GL_ARRAY_BUFFER, verts, GL_STATIC_DRAW);

        glVertexAttribPointer(position, 2, GL_FLOAT, false, 0, 0);
        glEnableVertexAttribArray(position);

        glBindBuffer(GL_ARRAY_BUFFER, 0);
}