[SOLVED] Exception in impostorTexture

Willy

01-01-2008 10:00:19

Hi, i'm using ogre with pagedGeometry, but got a problem with imposorPage
When i add a new detailLevel with impostorPage, i got an exception in std::Tree
The last call in pagedgeometry was ImpostorTexture::getTexture



	//Search for an existing impostor texture for the given entity

	std::map<ResourceHandle, ImpostorTexture *>::iterator iter;

	iter = selfList.find(entity->getMesh()->getHandle());

selfList is empty, visual studio report its value as [0]()
EDIT: i've forgotten to tell you

_Nodeptr _Lbound(const key_type& _Keyval) const

		{	// find leftmost node not less than _Keyval

		_Nodeptr _Pnode = _Root();

		_Nodeptr _Wherenode = _Myhead;	// end() if search fails

                .............

_Nodeptr& _Root() const

		{	// return root of nonmutable tree

		return (_Parent(_Myhead));

		}

_MyHead has no valid member

any suggestion is apprecieted

Thx

P.S.: happy new year :wink:

Willy

03-01-2008 15:24:22

Thx for the reply

below is the code, but i didn't think it's a bug in pagedgeometry, i've done the same as the example and the example in the zip run just fine.

the setup code:



	//bushes

	Ogre::Degree yaw;

	Ogre::Real scale;

	Vector2 position;

	bushes = new PagedGeometry(mCamera, 50);

	bushes->addDetailLevel<BatchPage>(80, 50);

	TreeLoader2D *bushLoader = new TreeLoader2D(bushes, TBounds(0, 0, 1500, 1500));

	bushes->setPageLoader(bushLoader);

	HeightFunction::initialize(mSceneManager);

	bushLoader->setHeightFunction(&HeightFunction::getTerrainHeight);

	Entity *myBush = mSceneManager->createEntity("Bush", myClass.findConfigValue("BushTree"));

	for (int i = 0; i < myClass.findIntConfigValue("numberOfBush"); i++){

		yaw = Degree(Math::RangeRandom(0, 360));

		position.x = Math::RangeRandom(0, 1500);

		position.y = Math::RangeRandom(0, 1500);

		scale = Math::RangeRandom(myClass.findfloatConfigValue("BushScaleMin"), myClass.findfloatConfigValue("BushScaleMax"));

		bushLoader->addTree(myBush, position, yaw, scale);

	}

	//trees

	trees = new PagedGeometry();

	trees->setCamera(mCamera);

	trees->setPageSize(80);	

	trees->setInfinite();

	trees->addDetailLevel<BatchPage>(150, 50);

	//trees->addDetailLevel<ImpostorPage>(500,50);

	TreeLoader2D *treeLoader = new TreeLoader2D(trees, TBounds(0, 0, 1500, 1500));

	trees->setPageLoader(treeLoader);

	HeightFunction::initialize(mSceneManager);

	treeLoader->setHeightFunction(&HeightFunction::getTerrainHeight);

	Entity *myTree = mSceneManager->createEntity("Tree", myClass.findConfigValue("TreeMesh"));

	for (int i = 0; i < myClass.findIntConfigValue("numberOfTree"); i++){

		yaw = Degree(Math::RangeRandom(0, 360));

		position.x = Math::RangeRandom(0, 1500);

		position.y = Math::RangeRandom(0, 1500);

		scale = Math::RangeRandom(myClass.findfloatConfigValue("TreeScaleMin"), myClass.findfloatConfigValue("TreeScaleMin"));



		treeLoader->addTree(myTree, position, yaw, scale);

	}

with the line for the 2 AddDetailLevel decommented, it generate the exception
bushes work fine
i use the HeightFunction show in the example

and in the frameListener after processing the input, it simple call a function that do



   trees->update();

	bushes->update();

The stack trace

>	std::_Tree<std::_Tmap_traits<unsigned long,ImpostorTexture *,std::less<unsigned long>,std::allocator<std::pair<unsigned long const ,ImpostorTexture *> >,0> >::_Root()  Riga 1231	C++

 	std::_Tree<std::_Tmap_traits<unsigned long,ImpostorTexture *,std::less<unsigned long>,std::allocator<std::pair<unsigned long const ,ImpostorTexture *> >,0> >::_Lbound(const unsigned long & _Keyval=5)  Riga 1170 + 0x8 byte	C++

 	std::_Tree<std::_Tmap_traits<unsigned long,ImpostorTexture *,std::less<unsigned long>,std::allocator<std::pair<unsigned long const ,ImpostorTexture *> >,0> >::lower_bound(const unsigned long & _Keyval=5)  Riga 987 + 0x10 byte	C++

 	std::_Tree<std::_Tmap_traits<unsigned long,ImpostorTexture *,std::less<unsigned long>,std::allocator<std::pair<unsigned long const ,ImpostorTexture *> >,0> >::find(const unsigned long & _Keyval=5)  Riga 961 + 0x10 byte	C++

 	ImpostorTexture::getTexture(ImpostorPage * group=0x04eb1b30, Ogre::Entity * entity=0x04ec9b28)  Riga 541 + 0x52 byte	C++

 	ImpostorBatch::ImpostorBatch(ImpostorPage * group=0x04eb1b30, Ogre::Entity * entity=0x04ec9b28)  Riga 188 + 0xd byte	C++

 	ImpostorBatch::getBatch(ImpostorPage * group=0x04eb1b30, Ogre::Entity * entity=0x04ec9b28)  Riga 228 + 0x30 byte	C++

 	ImpostorPage::addEntity(Ogre::Entity * ent=0x04ec9b28, const Ogre::Vector3 & position={...}, const Ogre::Quaternion & rotation={...}, const Ogre::Vector3 & scale={...}, const Ogre::ColourValue & color={...})  Riga 79 + 0xd byte	C++

 	PageLoader::addEntity(Ogre::Entity * ent=0x04ec9b28, const Ogre::Vector3 & position={...}, const Ogre::Quaternion & rotation={...}, const Ogre::Vector3 & scale={...}, const Ogre::ColourValue & color={...})  Riga 988 + 0x29 byte	C++

 	TreeLoader2D::loadPage(PageInfo & page={...})  Riga 249	C++

 	GeometryPageManager::_loadPage(GeometryPage * page=0x04eb1b30)  Riga 550 + 0x28 byte	C++

 	GeometryPageManager::update(unsigned long deltaTime=430, Ogre::Vector3 & camPos={...}, Ogre::Vector3 & camSpeed={...}, bool & enableCache=false, GeometryPageManager * prevManager=0x04ea22a0)  Riga 313	C++

 	PagedGeometry::update()  Riga 163	C++

 	Scene::update(Ogre::Camera * mCamera=0x00c7b028)  Riga 127	C++

	.............................

SOLVED

i miss the /clr option in th eproject specification