OGRE-Next  2.3
Object-Oriented Graphics Rendering Engine
Ogre::GL3PlusHardwareOcclusionQuery Class Referencefinal

This is a class that is the base class of the query class for hardware occlusion. More...

#include <OgreGL3PlusHardwareOcclusionQuery.h>

+ Inheritance diagram for Ogre::GL3PlusHardwareOcclusionQuery:

Public Member Functions

 GL3PlusHardwareOcclusionQuery ()
 Default object constructor. More...
 
 ~GL3PlusHardwareOcclusionQuery ()
 Object destructor. More...
 
void beginOcclusionQuery () override
 Starts the hardware occlusion query. More...
 
void endOcclusionQuery () override
 Ends the hardware occlusion test. More...
 
unsigned int getLastQuerysPixelcount () const
 Let's you get the last pixel count with out doing the hardware occlusion test. More...
 
bool isStillOutstanding () override
 Lets you know when query is done, or still be processed by the Hardware. More...
 
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 More...
 
void * operator new (size_t sz, void *ptr)
 placement operator new More...
 
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 More...
 
bool pullOcclusionQuery (unsigned int *NumOfFragments) override
 Pulls the hardware occlusion query. More...
 

Detailed Description

This is a class that is the base class of the query class for hardware occlusion.

Author
Lee Sandberg email: lee@a.nosp@m.bcme.nosp@m.dia.s.nosp@m.e Updated on 13/9/2005 by Tuan Kuranes email: tuan..nosp@m.kura.nosp@m.nes@f.nosp@m.ree..nosp@m.fr

Constructor & Destructor Documentation

◆ GL3PlusHardwareOcclusionQuery()

Ogre::GL3PlusHardwareOcclusionQuery::GL3PlusHardwareOcclusionQuery ( )

Default object constructor.

◆ ~GL3PlusHardwareOcclusionQuery()

Ogre::GL3PlusHardwareOcclusionQuery::~GL3PlusHardwareOcclusionQuery ( )

Object destructor.

Member Function Documentation

◆ beginOcclusionQuery()

void Ogre::GL3PlusHardwareOcclusionQuery::beginOcclusionQuery ( )
overridevirtual

Starts the hardware occlusion query.

Remarks
Simple usage: Create one or more OcclusionQuery object one per outstanding query or one per tested object OcclusionQuery* mOcclusionQuery; createOcclusionQuery( &mOcclusionQuery ); In the rendering loop: Draw all occluders mOcclusionQuery->startOcclusionQuery(); Draw the polygons to be tested mOcclusionQuery->endOcclusionQuery();

Results must be pulled using: UINT mNumberOfPixelsVisable; pullOcclusionQuery( &mNumberOfPixelsVisable );

Implements Ogre::HardwareOcclusionQuery.

◆ endOcclusionQuery()

void Ogre::GL3PlusHardwareOcclusionQuery::endOcclusionQuery ( )
overridevirtual

Ends the hardware occlusion test.

Implements Ogre::HardwareOcclusionQuery.

◆ getLastQuerysPixelcount()

unsigned int Ogre::HardwareOcclusionQuery::getLastQuerysPixelcount ( ) const
inlineinherited

Let's you get the last pixel count with out doing the hardware occlusion test.

Returns
The last fragment count from the last test. Remarks This function won't give you new values, just the old value.

◆ isStillOutstanding()

bool Ogre::GL3PlusHardwareOcclusionQuery::isStillOutstanding ( )
overridevirtual

Lets you know when query is done, or still be processed by the Hardware.

Returns
true if query isn't finished.

Implements Ogre::HardwareOcclusionQuery.

◆ 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,
const char *  ,
int  ,
const char *   
)
inlineinherited

◆ operator delete() [3/3]

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

◆ operator new() [2/3]

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() [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)
inlineinherited

◆ operator new[]() [2/2]

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

◆ pullOcclusionQuery()

bool Ogre::GL3PlusHardwareOcclusionQuery::pullOcclusionQuery ( unsigned int *  NumOfFragments)
overridevirtual

Pulls the hardware occlusion query.

Note
Waits until the query result is available; use isStillOutstanding if just want to test if the result is available.
Return values
NumOfFragmentswill get the resulting number of fragments.
Returns
True if success or false if not.

Implements Ogre::HardwareOcclusionQuery.


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