plsm2+Hdrax0.5.1 Problem

i am using Plsm2 with hdrax0.5.1 ，and find a problem
void createPalms(Ogre::SceneManager *mSceneMgr)
{
const int NumberOfPalms = 12;

Ogre::SceneNode* mPalmsSceneNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();


for (int k = 0; k < NumberOfPalms; k++)
{
Ogre::Vector3 RandomPos = Ogre::Vector3(rnd_(500,2500),
0,
rnd_(500,2500));

// dead loop ↓
Ogre::RaySceneQuery * raySceneQuery = mSceneMgr->
createRayQuery(Ogre::Ray(RandomPos + Ogre::Vector3(0,1000000,0),
Ogre::Vector3::NEGATIVE_UNIT_Y));

Ogre::RaySceneQueryResult& qryResult = raySceneQuery->execute();
Ogre::RaySceneQueryResult::iterator i = qryResult.begin();

if (i != qryResult.end() && i->worldFragment)
{
if (i->worldFragment->singleIntersection.y>105 || i->worldFragment->singleIntersection.y<20)
{
k--;
continue;
}

RandomPos.y = i->worldFragment->singleIntersection.y;
}
else
{
k--;
continue;
}

// dead loop ↑
Ogre::Entity *mPalmEnt = mSceneMgr->createEntity("Palm"+Ogre::StringConverter::toString(k), "Palm.mesh");
Ogre::SceneNode *mPalmSN = mPalmsSceneNode->createChildSceneNode();

mPalmSN->rotate(Ogre::Vector3(-1,0,rnd_(-0.3,0.3)), Ogre::Degree(90));
mPalmSN->attachObject(mPalmEnt);
Ogre::Real Scale = rnd_(50,75);
mPalmSN->scale(Scale,Scale,Scale);
mPalmSN->setPosition(RandomPos);
}
}



This seem more a problem with your intersection implementation that a Hydrax or PLSM2 problem.