@Override
    public void done(LightProbe result) {
        long end = System.currentTimeMillis();
        if (logger.isLoggable(Level.INFO)) {
            logger.log(Level.INFO, "Generation done in {0}", (end - time) / 1000f);
        }
    }
A basic logger for environment map rendering progress.
@author nehon
jme3-examples/src/main/java/jme3test/light/pbr/ConsoleProgressReporter.java