Ogre::PageManager::EventRouter Class Reference

Inheritance diagram for Ogre::PageManager::EventRouter:

Public Member Functions
	EventRouter ()
	~EventRouter ()
void	cameraPreRenderScene (Camera *cam)
	Called prior to the scene being rendered with this camera.
void	cameraDestroyed (Camera *cam)
	Called when the camera is being destroyed.
bool	frameStarted (const FrameEvent &evt)
	Called when a frame is about to begin rendering.
bool	frameEnded (const FrameEvent &evt)
	Called just after a frame has been rendered.
virtual void	cameraPostRenderScene (Camera *cam)
	Called after the scene has been rendered with this camera.
virtual bool	frameRenderingQueued (const FrameEvent &evt)
	Called after all render targets have had their rendering commands issued, but before render windows have been asked to flip their buffers over.
Public Attributes
PageManager *	pManager
WorldMap *	pWorldMap
CameraList *	pCameraList

Detailed Description

Definition at line 440 of file OgrePageManager.h.

Ogre::PageManager::EventRouter::EventRouter ( )

Definition at line 447 of file OgrePageManager.h.

Ogre::PageManager::EventRouter::~EventRouter ( )

Definition at line 448 of file OgrePageManager.h.

void Ogre::PageManager::EventRouter::cameraDestroyed ( Camera * cam ) [virtual]

Called when the camera is being destroyed.

virtual void Ogre::Camera::Listener::cameraPostRenderScene ( Camera * cam ) [virtual, inherited]

Called after the scene has been rendered with this camera.

Definition at line 101 of file OgreCamera.h.

void Ogre::PageManager::EventRouter::cameraPreRenderScene ( Camera * cam ) [virtual]

Called prior to the scene being rendered with this camera.

bool Ogre::PageManager::EventRouter::frameEnded ( const FrameEvent & evt ) [virtual]

Called just after a frame has been rendered.

Remarks:: This event happens after all render targets have been fully updated and the buffers switched.

Returns:: True to continue with the next frame, false to drop out of the rendering loop.

Reimplemented from Ogre::FrameListener.

virtual bool Ogre::FrameListener::frameRenderingQueued ( const FrameEvent & evt ) [virtual, inherited]

Called after all render targets have had their rendering commands issued, but before render windows have been asked to flip their buffers over.

Remarks:: The usefulness of this event comes from the fact that rendering commands are queued for the GPU to process. These can take a little while to finish, and so while that is happening the CPU can be doing useful things. Once the request to 'flip buffers' happens, the thread requesting it will block until the GPU is ready, which can waste CPU cycles. Therefore, it is often a good idea to use this callback to perform per-frame processing. Of course because the frame's rendering commands have already been issued, any changes you make will only take effect from the next frame, but in most cases that's not noticeable.