@Override
            public Void call() throws Exception {
                listener.start();
                return null;
            }
Fills all the generation parameters

@param sourceMap      the source cube map
@param targetMapSize  the size of the generated map (width or height in
                      pixel)
@param fixSeamsMethod the method used to fix seams as described in
                      {@link com.jme3.environment.util.EnvMapUtils.FixSeamsMethod}
@param genType        select Fast or HighQuality
@param store          The cube map to store the result in.
jme3-core/src/main/java/com/jme3/environment/generation/PrefilteredEnvMapFaceGenerator.java