@Override
                    public void done(LightProbe result) {
                        System.err.println("Done rendering env maps");
                        tex = EnvMapUtils.getCubeMapCrossDebugViewWithMipMaps(result.getPrefilteredEnvMap(), assetManager);
                    }
A test case for PBR lighting.
Still experimental.

@author nehon
jme3-examples/src/main/java/jme3test/light/pbr/TestPBRLighting.java