pluginName = new String("Xith 3D Viewer");
pluginManager = ((PluginManager) new Xith3DPluginManager());
mainBuiltin = (Syn3DPlugin)pluginManager.getPlugin(Xith3DSyn3DBuiltin.class);
tm = ((SceneGraphModel)new SceneGraphModelXith3D());
// Others builtins related to the Java 3D plugin
UserProperties p=Run.getProperties();
String plugins=p.getProperty("syn3d.plugins.xith3d");