public void map(GL4 gl, float[] data)
    {
        gl.glMapBuffer(GL4.GL_UNIFORM_BUFFER, GL4.GL_WRITE_ONLY).asFloatBuffer().put(data);
        gl.glUnmapBuffer(GL4.GL_UNIFORM_BUFFER);
    }

    public void bind(GL4 gl, int bind_location, int block_index, int program)
    {
        gl.glBindBufferBase(GL4.GL_UNIFORM_BUFFER, block_index, m_handle[0]);
        gl.glUniformBlockBinding(program, bind_location, block_index);
    }