private PointLightShadowFilter createPointLightShadowFilter(AssetManager assetManager) {
        PointLight light = new PointLight();
        light.setColor(new ColorRGBA(0.8f, 0.8f, 0.8f, 1f));

        PointLightShadowFilter plsf = new PointLightShadowFilter(assetManager, 2048);
        plsf.setLight(light);

        return plsf;
    }
Tests serialization and de-serialization of a {@code FilterPostProcessing}.
jme3-core/src/test/java/com/jme3/shadow/FilterPostProcessingTest.java