public void atext(String text, Coord c, double ax, double ay) {
Text t = Text.render(text);
Tex T = t.tex();
Coord sz = t.sz();
image(T, c.add((int) ((double) sz.x * -ax), (int) ((double) sz.y * -ay)));
T.dispose();
checkerr();
}
public void image(BufferedImage img, Coord c) {
if (img == null) return;
Tex tex = new TexI(img);
image(tex, c);
tex.dispose();
}