createChildSceneNode.cpp

//create entities
Ogre::Entity* ent1 = mSceneMgr->createEntity("Ogre1","ogrehead.mesh");
Ogre::Entity* ent2 = mSceneMgr->createEntity("Ninja1","ninja.mesh");

//create nodes
Ogre::SceneNode* childnode1 = mSceneMgr->createSceneNode("Node1");
//Ogre::SceneNode* childnode2 = mSceneMgr->createSceneNode("Node2");

//attach to RSN

mSceneMgr->GetRootSceneNode()->addChild(childnode1);
childnode1->attachObject(ent1);
//childnode1->addChild(childnode2);

Ogre::SceneNode * childnode2 = childnode1->createChildSceneNode("Node2");
childnode2->attachObject(ent2);

//set childnode2's position as origin
childnode2->setPosition(0,0,0);

//yaw for 90 degrees using Radian method and the HALF_PI defined in Ogre::Math
childnode2->yaw(Ogre::Radian(Ogre::Math::HALF_PI));

//pitch for 90 degrees using the Degree() 
childnode2->pitch(Ogre::Degree(-90));