Entity *ent1 = mSceneMgr->createEntity( "Robot", "robot.mesh" );
SceneNode *node1 = mSceneMgr->getRootSceneNode()->createChildSceneNode( "RobotNode" );
node1->attachObject( ent1 );

Entity *ent2 = mSceneMgr->createEntity( "Robot2", "robot.mesh" );
SceneNode *node2 = mSceneMgr->getRootSceneNode()->createChildSceneNode( "RobotNode2", Vector3( 50, 0, 0 ) );
node2->attachObject( ent2 );

Entity *ent3 = mSceneMgr->createEntity( "Robot3", "robot.mesh" );
SceneNode *node3 = mSceneMgr->getRootSceneNode()->createChildSceneNode( "RobotNode3", Vector3( 0, 50, 0 ) );
node2->attachObject( ent3 );