Ogre::TerrainLodManager Class Reference

Terrain LOD data manager. More...

#include <OgreTerrainLodManager.h>

Classes
struct	LoadLodRequest
struct	LodInfo

Public Types
typedef std::vector< float >	LodData
typedef std::vector< LodData >	LodsData

Public Member Functions
	TerrainLodManager (Terrain *t, const String &filename="")
	TerrainLodManager (Terrain *t, DataStreamPtr &stream)
virtual	~TerrainLodManager ()
void	close ()
void	fillBufferAtLod (uint lodLevel, const float *data, uint dataSize)
	Copy geometry data from buffer to mHeightData/mDeltaData.
int	getHighestLodLoaded ()
int	getHighestLodPrepared ()
LodInfo &	getLodInfo (uint lodLevel)
int	getTargetLodLevel ()
bool	isOpen () const
void	open (const String &filename)
void	readLodData (uint16 lowerLodBound, uint16 higherLodBound)
	Read separated geometry data from file into allocated memory.
void	updateToLodLevel (int lodLevel, bool synchronous=false)
void	waitForDerivedProcesses ()

Static Public Member Functions
static void	saveLodData (StreamSerialiser &stream, Terrain *terrain)
	Save each LOD level separately compressed so seek is possible.

Static Public Attributes
static const uint32	TERRAINLODDATA_CHUNK_ID
static const uint16	TERRAINLODDATA_CHUNK_VERSION

Detailed Description

Terrain LOD data manager.

This class is used for managing terrain LOD data's loading, unloading.

Member Typedef Documentation

LodData

typedef std::vector<float> Ogre::TerrainLodManager::LodData

LodsData

typedef std::vector<LodData> Ogre::TerrainLodManager::LodsData

Constructor & Destructor Documentation

TerrainLodManager() [1/2]

Ogre::TerrainLodManager::TerrainLodManager	(	Terrain *	t,
		DataStreamPtr &	stream
	)

TerrainLodManager() [2/2]

Ogre::TerrainLodManager::TerrainLodManager	(	Terrain *	t,
		const String &	filename = ""
	)

~TerrainLodManager()

virtual Ogre::TerrainLodManager::~TerrainLodManager ( )

virtual

Member Function Documentation

open()

void Ogre::TerrainLodManager::open

(

const String &

filename

)

close()

void Ogre::TerrainLodManager::close

(

)

isOpen()

bool Ogre::TerrainLodManager::isOpen

(

)

const

updateToLodLevel()

void Ogre::TerrainLodManager::updateToLodLevel	(	int	lodLevel,
		bool	synchronous = false
	)

saveLodData()

static void Ogre::TerrainLodManager::saveLodData ( StreamSerialiser &  stream, Terrain *  terrain  )

static

Save each LOD level separately compressed so seek is possible.

fillBufferAtLod()

void Ogre::TerrainLodManager::fillBufferAtLod	(	uint	lodLevel,
		const float *	data,
		uint	dataSize
	)

Copy geometry data from buffer to mHeightData/mDeltaData.

Parameters

lodLevel	A LOD level to work with
data,dataSize	Buffer which holds geometry data if separated form

Remarks

Data in buffer has to be both height and delta data. First half is height data. Seconds half is delta data.

readLodData()

void Ogre::TerrainLodManager::readLodData	(	uint16	lowerLodBound,
		uint16	higherLodBound
	)

Read separated geometry data from file into allocated memory.

Parameters

lowerLodBound	Lower bound of LOD levels to load
higherLodBound	Upper bound of LOD levels to load

Remarks

Geometry data are uncompressed using inflate() and stored into allocated buffer

waitForDerivedProcesses()

void Ogre::TerrainLodManager::waitForDerivedProcesses

(

)

getHighestLodPrepared()

int Ogre::TerrainLodManager::getHighestLodPrepared ( )

inline

getHighestLodLoaded()

int Ogre::TerrainLodManager::getHighestLodLoaded ( )

inline

getTargetLodLevel()

int Ogre::TerrainLodManager::getTargetLodLevel ( )

inline

getLodInfo()

LodInfo & Ogre::TerrainLodManager::getLodInfo ( uint  lodLevel )

inline

Member Data Documentation

TERRAINLODDATA_CHUNK_ID

const uint32 Ogre::TerrainLodManager::TERRAINLODDATA_CHUNK_ID

static

TERRAINLODDATA_CHUNK_VERSION

const uint16 Ogre::TerrainLodManager::TERRAINLODDATA_CHUNK_VERSION

static

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The documentation for this class was generated from the following file:

• OgreTerrainLodManager.h