Mine

	smgr->loadScene("basement.irr");	scene::IAnimatedMesh* q3levelmesh = smgr->getMesh("basement.dae");	scene::ISceneNode* q3node = 0;    ITriangleSelector* selector = 0;	if (q3levelmesh)		q3node = smgr->getSceneNodeFromName("basement");        if(q3node)        selector = smgr->createOctTreeTriangleSelector(q3levelmesh->getMesh(0), q3node, 128);		q3node->setTriangleSelector(selector);    ICameraSceneNode* camera = smgr->addCameraSceneNodeFPS();    camera->setPosition(vector3df(0,175,0));    ISceneNodeAnimator* anim = smgr->createCollisionResponseAnimator(		selector, camera, vector3df(30,50,30), vector3df(0,-3,0), vector3df(0,50,0));			camera->addAnimator(anim);	anim->drop();