OGRE  1.9.0
Ogre::LodStrategy Class Referenceabstract

Strategy for determining level of detail. More...

#include <OgreLodStrategy.h>

Inheritance diagram for Ogre::LodStrategy:

Public Member Functions

 LodStrategy (const String &name)
 Constructor accepting name.
 
virtual ~LodStrategy ()
 Virtual destructor.
 
void assertSorted (const Mesh::LodValueList &values) const
 Assert that the LOD values are sorted from greatest detail to least detail.
 
virtual Real getBaseValue () const =0
 Get the value of the first (highest) level of detail.
 
virtual ushort getIndex (Real value, const Material::LodValueList &materialLodValueList) const =0
 Get the index of the LOD usage which applies to a given value.
 
virtual ushort getIndex (Real value, const Mesh::MeshLodUsageList &meshLodUsageList) const =0
 Get the index of the LOD usage which applies to a given value.
 
const StringgetName () const
 Get the name of this strategy.
 
Real getValue (const MovableObject *movableObject, const Camera *camera) const
 Compute the LOD value for a given movable object relative to a given camera.
 
virtual bool isSorted (const Mesh::LodValueList &values) const =0
 Determine if the LOD values are sorted from greatest detail to least detail.
 
void operator delete (void *ptr)
 
void operator delete (void *ptr, const char *, int, const char *)
 
void operator delete (void *ptr, void *)
 
void operator delete[] (void *ptr)
 
void operator delete[] (void *ptr, const char *, int, const char *)
 
void * operator new (size_t sz)
 
void * operator new (size_t sz, const char *file, int line, const char *func)
 operator new, with debug line info
 
void * operator new (size_t sz, void *ptr)
 placement operator new
 
void * operator new[] (size_t sz)
 
void * operator new[] (size_t sz, const char *file, int line, const char *func)
 array operator new, with debug line info
 
virtual void sort (Mesh::MeshLodUsageList &meshLodUsageList) const =0
 Sort mesh LOD usage list from greatest to least detail.
 
virtual Real transformBias (Real factor) const =0
 Transform LOD bias so it only needs to be multiplied by the LOD value.
 
virtual Real transformUserValue (Real userValue) const
 Transform user supplied value to internal value.
 

Protected Member Functions

virtual Real getValueImpl (const MovableObject *movableObject, const Camera *camera) const =0
 Compute the LOD value for a given movable object relative to a given camera.
 

Static Protected Member Functions

static ushort getIndexAscending (Real value, const Material::LodValueList &materialLodValueList)
 Implementation of getIndex suitable for ascending values.
 
static ushort getIndexAscending (Real value, const Mesh::MeshLodUsageList &meshLodUsageList)
 Implementation of getIndex suitable for ascending values.
 
static ushort getIndexDescending (Real value, const Material::LodValueList &materialLodValueList)
 Implementation of getIndex suitable for descending values.
 
static ushort getIndexDescending (Real value, const Mesh::MeshLodUsageList &meshLodUsageList)
 Implementation of getIndex suitable for descending values.
 
static bool isSortedAscending (const Mesh::LodValueList &values)
 Implementation of isSorted suitable for ascending values.
 
static bool isSortedDescending (const Mesh::LodValueList &values)
 Implementation of isSorted suitable for descending values.
 
static void sortAscending (Mesh::MeshLodUsageList &meshLodUsageList)
 Implementation of sort suitable for ascending values.
 
static void sortDescending (Mesh::MeshLodUsageList &meshLodUsageList)
 Implementation of sort suitable for descending values.
 

Protected Attributes

String mName
 Name of this strategy.
 

Detailed Description

Strategy for determining level of detail.

Remarks
Generally, to create a new LOD strategy, all of the following will need to be implemented: getValueImpl, getBaseValue, transformBias, getIndex, sort, and isSorted. In addition, transformUserValue may be overridden.

Definition at line 54 of file OgreLodStrategy.h.

Constructor & Destructor Documentation

◆ LodStrategy()

Ogre::LodStrategy::LodStrategy ( const String & name)

Constructor accepting name.

◆ ~LodStrategy()

virtual Ogre::LodStrategy::~LodStrategy ( )
virtual

Virtual destructor.

Member Function Documentation

◆ assertSorted()

void Ogre::LodStrategy::assertSorted ( const Mesh::LodValueList & values) const

Assert that the LOD values are sorted from greatest detail to least detail.

◆ getBaseValue()

virtual Real Ogre::LodStrategy::getBaseValue ( ) const
pure virtual

Get the value of the first (highest) level of detail.

Implemented in Ogre::DistanceLodStrategy, and Ogre::PixelCountLodStrategy.

◆ getIndex() [1/2]

virtual ushort Ogre::LodStrategy::getIndex ( Real value,
const Material::LodValueList & materialLodValueList ) const
pure virtual

Get the index of the LOD usage which applies to a given value.

Implemented in Ogre::DistanceLodStrategy, Ogre::DistanceLodStrategy, Ogre::PixelCountLodStrategy, and Ogre::PixelCountLodStrategy.

◆ getIndex() [2/2]

virtual ushort Ogre::LodStrategy::getIndex ( Real value,
const Mesh::MeshLodUsageList & meshLodUsageList ) const
pure virtual

Get the index of the LOD usage which applies to a given value.

Implemented in Ogre::DistanceLodStrategy, Ogre::DistanceLodStrategy, Ogre::PixelCountLodStrategy, and Ogre::PixelCountLodStrategy.

◆ getIndexAscending() [1/2]

static ushort Ogre::LodStrategy::getIndexAscending ( Real value,
const Material::LodValueList & materialLodValueList )
staticprotected

Implementation of getIndex suitable for ascending values.

◆ getIndexAscending() [2/2]

static ushort Ogre::LodStrategy::getIndexAscending ( Real value,
const Mesh::MeshLodUsageList & meshLodUsageList )
staticprotected

Implementation of getIndex suitable for ascending values.

◆ getIndexDescending() [1/2]

static ushort Ogre::LodStrategy::getIndexDescending ( Real value,
const Material::LodValueList & materialLodValueList )
staticprotected

Implementation of getIndex suitable for descending values.

◆ getIndexDescending() [2/2]

static ushort Ogre::LodStrategy::getIndexDescending ( Real value,
const Mesh::MeshLodUsageList & meshLodUsageList )
staticprotected

Implementation of getIndex suitable for descending values.

◆ getName()

const String & Ogre::LodStrategy::getName ( ) const

Get the name of this strategy.

Definition at line 104 of file OgreLodStrategy.h.

◆ getValue()

Real Ogre::LodStrategy::getValue ( const MovableObject * movableObject,
const Camera * camera ) const

Compute the LOD value for a given movable object relative to a given camera.

◆ getValueImpl()

virtual Real Ogre::LodStrategy::getValueImpl ( const MovableObject * movableObject,
const Camera * camera ) const
protectedpure virtual

Compute the LOD value for a given movable object relative to a given camera.

Implemented in Ogre::AbsolutePixelCountLodStrategy, Ogre::DistanceLodStrategy, Ogre::PixelCountLodStrategy, and Ogre::ScreenRatioPixelCountLodStrategy.

◆ isSorted()

virtual bool Ogre::LodStrategy::isSorted ( const Mesh::LodValueList & values) const
pure virtual

Determine if the LOD values are sorted from greatest detail to least detail.

Implemented in Ogre::DistanceLodStrategy, and Ogre::PixelCountLodStrategy.

◆ isSortedAscending()

static bool Ogre::LodStrategy::isSortedAscending ( const Mesh::LodValueList & values)
staticprotected

Implementation of isSorted suitable for ascending values.

◆ isSortedDescending()

static bool Ogre::LodStrategy::isSortedDescending ( const Mesh::LodValueList & values)
staticprotected

Implementation of isSorted suitable for descending values.

◆ operator delete() [1/3]

template<class Alloc >
void Ogre::AllocatedObject< Alloc >::operator delete ( void * ptr)
inherited

Definition at line 96 of file OgreMemoryAllocatedObject.h.

◆ operator delete() [2/3]

template<class Alloc >
void Ogre::AllocatedObject< Alloc >::operator delete ( void * ptr,
const char * ,
int ,
const char *  )
inherited

Definition at line 108 of file OgreMemoryAllocatedObject.h.

◆ operator delete() [3/3]

template<class Alloc >
void Ogre::AllocatedObject< Alloc >::operator delete ( void * ptr,
void *  )
inherited

Definition at line 102 of file OgreMemoryAllocatedObject.h.

◆ operator delete[]() [1/2]

template<class Alloc >
void Ogre::AllocatedObject< Alloc >::operator delete[] ( void * ptr)
inherited

Definition at line 113 of file OgreMemoryAllocatedObject.h.

◆ operator delete[]() [2/2]

template<class Alloc >
void Ogre::AllocatedObject< Alloc >::operator delete[] ( void * ptr,
const char * ,
int ,
const char *  )
inherited

Definition at line 119 of file OgreMemoryAllocatedObject.h.

◆ operator new() [1/3]

template<class Alloc >
void * Ogre::AllocatedObject< Alloc >::operator new ( size_t sz)
inherited

Definition at line 73 of file OgreMemoryAllocatedObject.h.

◆ operator new() [2/3]

template<class Alloc >
void * Ogre::AllocatedObject< Alloc >::operator new ( size_t sz,
const char * file,
int line,
const char * func )
inherited

operator new, with debug line info

Definition at line 68 of file OgreMemoryAllocatedObject.h.

◆ operator new() [3/3]

template<class Alloc >
void * Ogre::AllocatedObject< Alloc >::operator new ( size_t sz,
void * ptr )
inherited

placement operator new

Definition at line 79 of file OgreMemoryAllocatedObject.h.

◆ operator new[]() [1/2]

template<class Alloc >
void * Ogre::AllocatedObject< Alloc >::operator new[] ( size_t sz)
inherited

Definition at line 91 of file OgreMemoryAllocatedObject.h.

◆ operator new[]() [2/2]

template<class Alloc >
void * Ogre::AllocatedObject< Alloc >::operator new[] ( size_t sz,
const char * file,
int line,
const char * func )
inherited

array operator new, with debug line info

Definition at line 86 of file OgreMemoryAllocatedObject.h.

◆ sort()

virtual void Ogre::LodStrategy::sort ( Mesh::MeshLodUsageList & meshLodUsageList) const
pure virtual

Sort mesh LOD usage list from greatest to least detail.

Implemented in Ogre::DistanceLodStrategy, and Ogre::PixelCountLodStrategy.

◆ sortAscending()

static void Ogre::LodStrategy::sortAscending ( Mesh::MeshLodUsageList & meshLodUsageList)
staticprotected

Implementation of sort suitable for ascending values.

◆ sortDescending()

static void Ogre::LodStrategy::sortDescending ( Mesh::MeshLodUsageList & meshLodUsageList)
staticprotected

Implementation of sort suitable for descending values.

◆ transformBias()

virtual Real Ogre::LodStrategy::transformBias ( Real factor) const
pure virtual

Transform LOD bias so it only needs to be multiplied by the LOD value.

Implemented in Ogre::DistanceLodStrategy, and Ogre::PixelCountLodStrategy.

◆ transformUserValue()

virtual Real Ogre::LodStrategy::transformUserValue ( Real userValue) const
virtual

Transform user supplied value to internal value.

Remarks
By default, performs no transformation.
Do not throw exceptions for invalid values here, as the LOD strategy may be changed such that the values become valid.

Reimplemented in Ogre::DistanceLodStrategy.

Member Data Documentation

◆ mName

String Ogre::LodStrategy::mName
protected

Name of this strategy.

Definition at line 58 of file OgreLodStrategy.h.


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