@Override
  public void write(JmeExporter ex) throws IOException {
    super.write(ex);

    OutputCapsule oc = ex.getCapsule(this);
    oc.write(sampleRadius, "sampleRadius", 3.0f);
    oc.write(intensity, "intensity", 10.2f);
    oc.write(scale, "scale", 3.15f);
    oc.write(bias, "bias", 0.025f);
    // oc.write(sampleRadiusFD, "sampleRadiusFD", 0.55f);
    // oc.write(intensityFD, "intensityFD", 2.5f);
    // oc.write(scaleFD, "scaleFD", 1.15f);
    // oc.write(biasFD, "biasFD", 0.025f);
  }