Terrain::TerrainGrid Class Reference

Simple terrain implementation that loads cells in a grid, with no LOD. More...

#include <terraingrid.hpp>

Inheritance diagram for Terrain::TerrainGrid:

Collaboration diagram for Terrain::TerrainGrid:

Public Member Functions
	TerrainGrid (osg::Group *parent, Resource::ResourceSystem *resourceSystem, osgUtil::IncrementalCompileOperation *ico, Storage *storage, int nodeMask, Shader::ShaderManager *shaderManager=NULL, SceneUtil::UnrefQueue *unrefQueue=NULL)
	~TerrainGrid ()
virtual osg::ref_ptr< osg::Node >	cacheCell (int x, int y)
virtual void	loadCell (int x, int y)
virtual void	unloadCell (int x, int y)
void	updateCache ()
void	updateTextureFiltering ()
Public Member Functions inherited from Terrain::World
	World (osg::Group *parent, Resource::ResourceSystem *resourceSystem, osgUtil::IncrementalCompileOperation *ico, Storage *storage, int nodeMask)
virtual	~World ()
float	getHeightAt (const osg::Vec3f &worldPos)
Storage *	getStorage ()

Private Types
typedef std::map< std::string, osg::ref_ptr< osg::Texture2D > >	TextureCache
typedef std::map< std::pair < int, int >, osg::ref_ptr < osg::Node > >	Grid

Private Member Functions
osg::ref_ptr< osg::Node >	buildTerrain (osg::Group *parent, float chunkSize, const osg::Vec2f &chunkCenter)

Private Attributes
unsigned int	mNumSplits
TextureCache	mTextureCache
OpenThreads::Mutex	mTextureCacheMutex
Grid	mGrid
Grid	mGridCache
OpenThreads::Mutex	mGridCacheMutex
BufferCache	mCache
osg::ref_ptr < SceneUtil::UnrefQueue >	mUnrefQueue
Shader::ShaderManager *	mShaderManager

Additional Inherited Members
Protected Attributes inherited from Terrain::World
Storage *	mStorage
osg::ref_ptr< osg::Group >	mParent
osg::ref_ptr< osg::Group >	mTerrainRoot
Resource::ResourceSystem *	mResourceSystem
osg::ref_ptr < osgUtil::IncrementalCompileOperation >	mIncrementalCompileOperation

Detailed Description

Simple terrain implementation that loads cells in a grid, with no LOD.

Member Typedef Documentation

typedef std::map<std::pair<int, int>, osg::ref_ptr<osg::Node> > Terrain::TerrainGrid::Grid

private

typedef std::map<std::string, osg::ref_ptr<osg::Texture2D> > Terrain::TerrainGrid::TextureCache

private

Constructor & Destructor Documentation

Terrain::TerrainGrid::TerrainGrid	(	osg::Group *	parent,
		Resource::ResourceSystem *	resourceSystem,
		osgUtil::IncrementalCompileOperation *	ico,
		Storage *	storage,
		int	nodeMask,
		Shader::ShaderManager *	shaderManager = NULL,
		SceneUtil::UnrefQueue *	unrefQueue = NULL
	)

Terrain::TerrainGrid::~TerrainGrid

(

)

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Member Function Documentation

osg::ref_ptr< osg::Node > Terrain::TerrainGrid::buildTerrain ( osg::Group *  parent, float  chunkSize, const osg::Vec2f &  chunkCenter  )

private

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osg::ref_ptr< osg::Node > Terrain::TerrainGrid::cacheCell ( int  x, int  y  )

virtual

Load a terrain cell and store it in cache for later use.

Note

The returned ref_ptr should be kept by the caller to ensure that the terrain stays in cache for as long as needed.

Thread safe.

Reimplemented from Terrain::World.

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void Terrain::TerrainGrid::loadCell ( int  x, int  y  )

virtual

Note

Not thread safe.

Reimplemented from Terrain::World.

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void Terrain::TerrainGrid::unloadCell ( int  x, int  y  )

virtual

Note

Not thread safe.

Reimplemented from Terrain::World.

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void Terrain::TerrainGrid::updateCache ( )

virtual

Clear cached objects that are no longer referenced

Note

Thread safe.

Reimplemented from Terrain::World.

void Terrain::TerrainGrid::updateTextureFiltering ( )

virtual

Apply the scene manager's texture filtering settings to all cached textures.

Note

Thread safe.

Reimplemented from Terrain::World.

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Member Data Documentation

BufferCache Terrain::TerrainGrid::mCache

private

Grid Terrain::TerrainGrid::mGrid

private

Grid Terrain::TerrainGrid::mGridCache

private

OpenThreads::Mutex Terrain::TerrainGrid::mGridCacheMutex

private

unsigned int Terrain::TerrainGrid::mNumSplits

private

Shader::ShaderManager* Terrain::TerrainGrid::mShaderManager

private

TextureCache Terrain::TerrainGrid::mTextureCache

private

OpenThreads::Mutex Terrain::TerrainGrid::mTextureCacheMutex

private

osg::ref_ptr<SceneUtil::UnrefQueue> Terrain::TerrainGrid::mUnrefQueue

private

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

• /home/travis/build/OpenMW/openmw/components/terrain/terraingrid.hpp
• /home/travis/build/OpenMW/openmw/components/terrain/terraingrid.cpp