@Override
    public void write(JmeExporter ex) throws IOException {
        super.write(ex);
        OutputCapsule oc = ex.getCapsule(this);
        oc.write(radialVelocity, "radialVelocity", 0f);
        oc.write(origin, "origin", new Vector3f());
        oc.write(horizontal, "horizontal", false);
    }
Called internally by com.jme3.util.clone.Cloner.  Do not call directly.
jme3-core/src/main/java/com/jme3/effect/influencers/RadialParticleInfluencer.java