setForceCull(false);
setCullMode(Spatial.CULL_DYNAMIC);
    public void onDraw(Renderer r) {        DisplaySystem display = DisplaySystem.getDisplaySystem();        midPoint.set(r.getWidth() >> 1, r.getHeight() >> 1);        // Locate light src on screen x,y        flarePoint = display.getScreenCoordinates(worldTranslation, flarePoint)                .subtractLocal(midPoint.x, midPoint.y, 0);        if (flarePoint.z >= 1.0f) { // if it's behind us            setForceCull(true);            return;        } else            setForceCull(false);        // define a line from light src to one opposite across the center point        // draw main flare at src point        super.onDraw(r);    }