@Override
    public void reshape(ViewPort vp, int w, int h) {
        dispPic.setPosition(w / 20f, h / 20f);
        dispPic.setWidth(w / 5f);
        dispPic.setHeight(h / 5f);
    }
debug only
@return the pre-existing instance
jme3-core/src/main/java/com/jme3/shadow/BasicShadowRenderer.java