public static Node getDebugGui(AssetManager manager, LightProbe probe) {
        if (!probe.isReady()) {
            throw new UnsupportedOperationException("This EnvProbe is not ready yet, try to test isReady()");
        }

        Node debugNode = new Node("debug gui probe");
        Node debugPfemCm = EnvMapUtils.getCubeMapCrossDebugViewWithMipMaps(probe.getPrefilteredEnvMap(), manager);
        debugNode.attachChild(debugPfemCm);
        debugPfemCm.setLocalTranslation(520, 0, 0);

        return debugNode;
    }
For debuging purposes only Will return a Node meant to be added to a GUI
presenting the 2 cube maps in a cross pattern with all the mip maps.

@param manager
           the asset manager
@return a debug node
jme3-core/src/main/java/com/jme3/environment/FastLightProbeFactory.java