Ogre::LodStrategy Class Reference

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.
virtual Real	getBaseValue () const =0
	Get the value of the first (highest) level of detail.
const String &	getName () 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 void	lodUpdateImpl (const size_t numNodes, ObjectData t, const Camera *camera, Real bias) const =0
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.

Static Public Member Functions
static void	lodSet (ObjectData &t, Real lodValues[ARRAY_PACKED_REALS])

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.

Constructor & Destructor Documentation

LodStrategy()

Ogre::LodStrategy::LodStrategy

(

const String &

name

)

Constructor accepting name.

~LodStrategy()

virtual Ogre::LodStrategy::~LodStrategy ( )

virtual

Virtual destructor.

Member Function Documentation

getBaseValue()

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

pure virtual

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

Implemented in Ogre::DistanceLodStrategyBase, and Ogre::PixelCountLodStrategyBase.

getName()

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

inline

Get the name of this strategy.

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.

lodSet()

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

inlinestatic

lodUpdateImpl()

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

pure virtual

Implemented in Ogre::DistanceLodStrategyBase, Ogre::AbsolutePixelCountLodStrategy, and Ogre::ScreenRatioPixelCountLodStrategy.

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::DistanceLodStrategyBase, and Ogre::PixelCountLodStrategyBase.

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::DistanceLodStrategyBase, and Ogre::PixelCountLodStrategyBase.

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

• OgreLodStrategy.h