The ScreenRatioPixelCountLodStrategy class Implement a strategy which calculates LOD ratios based on coverage in screen ratios in the range [-1.0; 0.0] where -1.0 means the object is covering the whole screen and 0 covering almost nothing in the screen (very tiny). More...

#include <OgrePixelCountLodStrategy.h>

Inheritance diagram for Ogre::ScreenRatioPixelCountLodStrategy:

Public Member Functions
	ScreenRatioPixelCountLodStrategy ()
	Default constructor. More...

virtual Real	getBaseValue () const
	Get the value of the first (highest) level of detail. More...

const String &	getName () const
	Get the name of this strategy. More...

Real	getValue (const MovableObject movableObject, const Camera camera) const
	Compute the LOD value for a given movable object relative to a given camera. More...

Real	getValueImpl (const MovableObject movableObject, const Camera camera) const

virtual void	lodUpdateImpl (const size_t numNodes, ObjectData t, const Camera *camera, Real bias) const

void	operator delete (void *ptr)

void	operator delete (void ptr, void )

void	operator delete (void ptr, const char , int, const char *)

void	operator delete[] (void *ptr)

void	operator delete[] (void ptr, const char , int, const char *)

void *	operator new (size_t sz, const char file, int line, const char func)
	operator new, with debug line info More...

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *ptr)
	placement operator new More...

void *	operator new[] (size_t sz, const char file, int line, const char func)
	array operator new, with debug line info More...

void *	operator new[] (size_t sz)

virtual Real	transformBias (Real factor) const
	Transform LOD bias so it only needs to be multiplied by the LOD value. More...

virtual Real	transformUserValue (Real userValue) const
	Transform user supplied value to internal value. More...

Static Public Member Functions
static void	assertSorted (const v1::Mesh::LodValueArray &values)
	Assert that the LOD values are sorted from greatest detail to least detail. More...

static ushort	getIndex (Real value, const v1::Mesh::MeshLodUsageList &meshLodUsageList)
	Get the index of the LOD usage which applies to a given value. More...

static ushort	getIndex (Real value, const Material::LodValueArray &materialLodValueArray)
	Get the index of the LOD usage which applies to a given value. More...

static ScreenRatioPixelCountLodStrategy &	getSingleton (void)
	Override standard Singleton retrieval. More...

static ScreenRatioPixelCountLodStrategy *	getSingletonPtr (void)
	Override standard Singleton retrieval. More...

static bool	isSorted (const v1::Mesh::LodValueArray &values)
	Determine if the LOD values are sorted from greatest detail to least detail. More...

static void	lodSet (ObjectData &t, Real lodValues[ARRAY_PACKED_REALS])

static void	sort (v1::Mesh::MeshLodUsageList &meshLodUsageList)
	Sort mesh LOD usage list from greatest to least detail. More...

Detailed Description

The ScreenRatioPixelCountLodStrategy class Implement a strategy which calculates LOD ratios based on coverage in screen ratios in the range [-1.0; 0.0] where -1.0 means the object is covering the whole screen and 0 covering almost nothing in the screen (very tiny).

Note however that:

Values beyond -1.0 are possible (it just means the object is bigger than the screen)
It's an approximation

Constructor & Destructor Documentation

◆ ScreenRatioPixelCountLodStrategy()

Ogre::ScreenRatioPixelCountLodStrategy::ScreenRatioPixelCountLodStrategy ( )

Default constructor.

Member Function Documentation

◆ assertSorted()

static void Ogre::LodStrategy::assertSorted ( const v1::Mesh::LodValueArray & values )

staticinherited

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

◆ getBaseValue()

virtual Real Ogre::PixelCountLodStrategyBase::getBaseValue ( ) const

virtualinherited

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

Implements Ogre::LodStrategy.

◆ getIndex() [1/2]

static ushort Ogre::LodStrategy::getIndex	(	Real	value,
		const v1::Mesh::MeshLodUsageList &	meshLodUsageList
	)

staticinherited

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

◆ getIndex() [2/2]

static ushort Ogre::LodStrategy::getIndex	(	Real	value,
		const Material::LodValueArray &	materialLodValueArray
	)

staticinherited

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

◆ getName()

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

inlineinherited

Get the name of this strategy.

◆ getSingleton()

static ScreenRatioPixelCountLodStrategy& Ogre::ScreenRatioPixelCountLodStrategy::getSingleton ( void )

static

Override standard Singleton retrieval.

Remarks: Why do we do this? Well, it's because the Singleton implementation is in a .h file, which means it gets compiled into anybody who includes it. This is needed for the Singleton template to work, but we actually only want it compiled into the implementation of the class based on the Singleton, not all of them. If we don't change this, we get link errors when trying to use the Singleton-based class from an outside dll.

: This method just delegates to the template version anyway, but the implementation stays in this single compilation unit, preventing link errors.

◆ getSingletonPtr()

static ScreenRatioPixelCountLodStrategy* Ogre::ScreenRatioPixelCountLodStrategy::getSingletonPtr ( void )

static

Override standard Singleton retrieval.

Remarks: Why do we do this? Well, it's because the Singleton implementation is in a .h file, which means it gets compiled into anybody who includes it. This is needed for the Singleton template to work, but we actually only want it compiled into the implementation of the class based on the Singleton, not all of them. If we don't change this, we get link errors when trying to use the Singleton-based class from an outside dll.

: This method just delegates to the template version anyway, but the implementation stays in this single compilation unit, preventing link errors.

◆ getValue()

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

inherited

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

◆ getValueImpl()

Real Ogre::ScreenRatioPixelCountLodStrategy::getValueImpl	(	const MovableObject *	movableObject,
		const Camera *	camera
	)		const

virtual

Implements Ogre::LodStrategy.

◆ isSorted()

static bool Ogre::LodStrategy::isSorted ( const v1::Mesh::LodValueArray & values )

staticinherited

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

◆ lodSet()

static void Ogre::LodStrategy::lodSet	(	ObjectData &	t,
		Real	lodValues[ARRAY_PACKED_REALS]
	)

inlinestaticinherited

Referenced by Ogre::Renderable::getCurrentMaterialLod(), and Ogre::MovableObject::instanceBatchCullFrustumThreaded().

◆ lodUpdateImpl()

virtual void Ogre::ScreenRatioPixelCountLodStrategy::lodUpdateImpl	(	const size_t	numNodes,
		ObjectData	t,
		const Camera *	camera,
		Real	bias
	)		const

virtual

Implements Ogre::LodStrategy.

◆ operator delete() [1/3]

template<class Alloc >

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

inlineinherited

◆ operator delete() [2/3]

template<class Alloc >

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

inlineinherited

◆ operator delete() [3/3]

template<class Alloc >

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

inlineinherited

◆ operator delete[]() [1/2]

template<class Alloc >

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

inlineinherited

◆ operator delete[]() [2/2]

template<class Alloc >

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

inlineinherited

◆ operator new() [1/3]

template<class Alloc >

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

inlineinherited

operator new, with debug line info

◆ operator new() [2/3]

template<class Alloc >

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

inlineinherited

◆ operator new() [3/3]

template<class Alloc >

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

inlineinherited

placement operator new

◆ operator new[]() [1/2]

template<class Alloc >

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

inlineinherited

array operator new, with debug line info

◆ operator new[]() [2/2]

template<class Alloc >

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

inlineinherited

◆ sort()

static void Ogre::LodStrategy::sort ( v1::Mesh::MeshLodUsageList & meshLodUsageList )

staticinherited

Sort mesh LOD usage list from greatest to least detail.

◆ transformBias()

virtual Real Ogre::PixelCountLodStrategyBase::transformBias ( Real factor ) const

virtualinherited

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

Implements Ogre::LodStrategy.

◆ transformUserValue()

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

inlinevirtualinherited

Transform user supplied value to internal value.

Remarks: Do not throw exceptions for invalid values here, as the LOD strategy may be changed such that the values become valid.

Reimplemented from Ogre::LodStrategy.

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

OgrePixelCountLodStrategy.h

Public Member Functions

Static Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ ScreenRatioPixelCountLodStrategy()

Member Function Documentation

◆ assertSorted()

◆ getBaseValue()

◆ getIndex() [1/2]

◆ getIndex() [2/2]

◆ getName()

◆ getSingleton()

◆ getSingletonPtr()

◆ getValue()

◆ getValueImpl()

◆ isSorted()

◆ lodSet()

◆ lodUpdateImpl()

◆ operator delete() [1/3]

◆ operator delete() [2/3]

◆ operator delete() [3/3]

◆ operator delete[]() [1/2]

◆ operator delete[]() [2/2]

◆ operator new() [1/3]

◆ operator new() [2/3]

◆ operator new() [3/3]

◆ operator new[]() [1/2]

◆ operator new[]() [2/2]

◆ sort()

◆ transformBias()

◆ transformUserValue()