public void loop(float theDeltaTime) {
    /* change wrap mode */
    if (event().keyPressed) {
      if (event().keyCode == KEYCODE_R) {
        _myImageTexture.setWrapMode(TEXTURE_WRAPMODE_REPEAT);
      } else if (event().keyCode == KEYCODE_C) {
        _myImageTexture.setWrapMode(TEXTURE_WRAPMODE_CLAMP);
      }
    }

    /* change texturescale */
    _myImageTexture
        .rescale()
        .set(
            1 + (float) event().mouseX / (float) displaycapabilities().width * 2,
            -1 + (float) event().mouseY / (float) displaycapabilities().height * 2);
  }