public static void saveGlTexture(String name, int textureId, File outputFolder) {
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureId);

    GL11.glPixelStorei(GL11.GL_PACK_ALIGNMENT, 1);
    GL11.glPixelStorei(GL11.GL_UNPACK_ALIGNMENT, 1);

    int width = GL11.glGetTexLevelParameteri(GL11.GL_TEXTURE_2D, 0, GL11.GL_TEXTURE_WIDTH);
    int height = GL11.glGetTexLevelParameteri(GL11.GL_TEXTURE_2D, 0, GL11.GL_TEXTURE_HEIGHT);
    int size = width * height;

    BufferedImage bufferedimage = new BufferedImage(width, height, 2);
    String fileName = name + ".png";

    File output = new File(outputFolder, fileName);
    IntBuffer buffer = BufferUtils.createIntBuffer(size);
    int[] data = new int[size];

    GL11.glGetTexImage(GL11.GL_TEXTURE_2D, 0, GL12.GL_BGRA, GL12.GL_UNSIGNED_INT_8_8_8_8_REV, buffer);
    buffer.get(data);
    bufferedimage.setRGB(0, 0, width, height, data, 0, width);
    BufferedImage newImage = new BufferedImage(
        bufferedimage.getWidth(), bufferedimage.getHeight(),
        BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = newImage.createGraphics();
    AffineTransform at = new AffineTransform();
    at.concatenate(AffineTransform.getScaleInstance(1, -1));
    at.concatenate(AffineTransform.getTranslateInstance(0, -bufferedimage.getHeight()));
    g.transform(at);
    g.drawImage(bufferedimage, 0, 0, null);
    g.dispose();

    try {
        ImageIO.write(newImage, "png", output);
    } catch (IOException ioexception) {
        Log.info("Unable to write: ", ioexception);
    }
}