private static void drawBox() {
   GL11.glBegin(GL11.GL_QUADS);
   GL11.glTexCoord2f(0.0f, 0.0f);
   GL11.glVertex3f(-1.0f, -1.0f, 0.0f);
   GL11.glTexCoord2f(1.0f, 0.0f);
   GL11.glVertex3f(1.0f, -1.0f, 0.0f);
   GL11.glTexCoord2f(1.0f, 1.0f);
   GL11.glVertex3f(1.0f, 1.0f, 0.0f);
   GL11.glTexCoord2f(0.0f, 1.0f);
   GL11.glVertex3f(-1.0f, 1.0f, 0.0f);
   GL11.glEnd();
 }