This class represents a RenderTarget that renders to a Texture. More...

#include <OgreRenderTexture.h>

Inheritance diagram for Ogre::RenderTexture:

Public Member Functions
	RenderTexture (HardwarePixelBuffer *buffer, uint32 zoffset)

virtual	~RenderTexture ()

void	copyContentsToMemory (const Box &src, const PixelBox &dst, FrameBuffer buffer=FB_AUTO) override
	Copies the current contents of the render target to a pixelbox.

virtual void	copyContentsToMemory (const Box &src, const PixelBox &dst, FrameBuffer buffer=FB_AUTO)=0
	Copies the current contents of the render target to a pixelbox.

void	copyContentsToMemory (const PixelBox &dst, FrameBuffer buffer=FB_AUTO)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

PixelFormat	suggestPixelFormat () const override
	Suggests a pixel format to use for extracting the data in this target, when calling copyContentsToMemory.

Public Member Functions inherited from Ogre::RenderTarget
	RenderTarget ()

virtual	~RenderTarget ()

virtual void	_beginUpdate ()
	Method for manual management of rendering : fires 'preRenderTargetUpdate' and initialises statistics etc.

virtual void	_detachDepthBuffer ()
	Detaches DepthBuffer without notifying it from the detach.

virtual void	_endUpdate ()
	Method for manual management of rendering - finishes statistics calculation and fires 'postRenderTargetUpdate'.

virtual void	_notifyCameraRemoved (const Camera *cam)
	Utility method to notify a render target that a camera has been removed, in case it was referring to it as a viewer.

virtual void	_updateAutoUpdatedViewports (bool updateStatistics=true)
	Method for manual management of rendering - renders only viewports that are auto updated.

virtual void	_updateViewport (int zorder, bool updateStatistics=true)
	Method for manual management of rendering - renders the given viewport (even if it is not autoupdated)

virtual void	_updateViewport (Viewport *viewport, bool updateStatistics=true)
	Method for manual management of rendering - renders the given viewport (even if it is not autoupdated)

virtual void	addListener (RenderTargetListener *listener)
	Add a listener to this RenderTarget which will be called back before & after rendering.

virtual Viewport *	addViewport (Camera *cam, int ZOrder=0, float left=0.0f, float top=0.0f, float width=1.0f, float height=1.0f)
	Adds a viewport to the rendering target.

virtual bool	attachDepthBuffer (DepthBuffer *depthBuffer)

void	copyContentsToMemory (const PixelBox &dst, FrameBuffer buffer=FB_AUTO)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

virtual void	detachDepthBuffer ()

uint	getCustomAttribute (const String &name)
	simplified API for bindings

virtual void	getCustomAttribute (const String &name, void *pData)
	Retrieve a platform or API-specific piece of information.

DepthBuffer *	getDepthBuffer () const

uint16	getDepthBufferPool () const

virtual uint	getFSAA () const
	Indicates whether multisampling is performed on rendering and at what level.

virtual const String &	getFSAAHint () const
	RenderSystem specific FSAA option. See RenderSystem::_createRenderWindow for details.

virtual uint32	getHeight (void) const

void	getMetrics (unsigned int &width, unsigned int &height)
	Retrieve information about the render target.

virtual const String &	getName (void) const
	Retrieve target's name.

virtual unsigned short	getNumViewports (void) const
	Returns the number of viewports attached to this target.

virtual uchar	getPriority () const
	Gets the priority of a render target.

const FrameStats &	getStatistics (void) const
	Retrieves details of current rendering performance.

virtual Viewport *	getViewport (unsigned short index)
	Retrieves a pointer to the viewport with the given index.

virtual Viewport *	getViewportByZOrder (int ZOrder)
	Retrieves a pointer to the viewport with the given Z-order.

virtual uint32	getWidth (void) const

virtual bool	hasViewportWithZOrder (int ZOrder)
	Returns true if and only if a viewport exists at the given Z-order.

virtual void	insertListener (RenderTargetListener *listener, const unsigned int pos=0)
	same as addListener, but force the position in the vector, so we can control the call order

virtual bool	isActive () const
	Used to retrieve or set the active state of the render target.

virtual bool	isAutoUpdated (void) const
	Gets whether this target is automatically updated if Ogre's rendering loop or Root::_updateAllRenderTargets is being used.

virtual bool	isHardwareGammaEnabled () const
	Indicates whether on rendering, linear colour space is converted to sRGB gamma colour space.

virtual bool	isPrimary (void) const
	Indicates whether this target is the primary window.

virtual bool	isStereoEnabled (void) const
	Indicates whether stereo is currently enabled for this target.

virtual void	removeAllListeners (void)
	Removes all listeners from this instance.

virtual void	removeAllViewports (void)
	Removes all viewports on this target.

virtual void	removeListener (RenderTargetListener *listener)
	Removes a RenderTargetListener previously registered using addListener.

virtual void	removeViewport (int ZOrder)
	Removes a viewport at a given Z-order.

virtual bool	requiresTextureFlipping () const =0

void	resetStatistics (void)
	Resets saved frame-rate statistices.

virtual void	setActive (bool state)
	Used to set the active state of the render target.

virtual void	setAutoUpdated (bool autoupdate)
	Sets whether this target should be automatically updated if Ogre's rendering loop or Root::_updateAllRenderTargets is being used.

void	setDepthBufferPool (uint16 poolId)
	Sets the pool ID this RenderTarget should query from.

virtual void	setFSAA (uint fsaa, const String &fsaaHint)
	Set the level of multisample AA to be used if hardware support it.

virtual void	setPriority (uchar priority)
	Sets the priority of this render target in relation to the others.

virtual void	swapBuffers ()
	Swaps the frame buffers to display the next frame.

virtual void	update (bool swapBuffers=true)
	Tells the target to update it's contents.

void	writeContentsToFile (const String &filename)
	Writes the current contents of the render target to the named file.

virtual String	writeContentsToTimestampedFile (const String &filenamePrefix, const String &filenameSuffix)
	Writes the current contents of the render target to the (PREFIX)(time-stamp)(SUFFIX) file.

Additional Inherited Members
Public Types inherited from Ogre::RenderTarget
enum	FrameBuffer { FB_FRONT , FB_BACK , FB_AUTO }

Detailed Description

This class represents a RenderTarget that renders to a Texture.

There is no 1 on 1 relation between Textures and RenderTextures, as there can be multiple RenderTargets rendering to different mipmaps, faces (for cubemaps) or slices (for 3D textures) of the same Texture.

Constructor & Destructor Documentation

◆ RenderTexture()

Ogre::RenderTexture::RenderTexture	(	HardwarePixelBuffer *	buffer,
		uint32	zoffset
	)

◆ ~RenderTexture()

virtual Ogre::RenderTexture::~RenderTexture ( )

virtual

Member Function Documentation

◆ copyContentsToMemory() [1/3]

void Ogre::RenderTexture::copyContentsToMemory	(	const Box &	src,
		const PixelBox &	dst,
		FrameBuffer	buffer = `FB_AUTO`
	)

overridevirtual

Copies the current contents of the render target to a pixelbox.

Remarks: See suggestPixelFormat for a tip as to the best pixel format to extract into, although you can use whatever format you like and the results will be converted.

Implements Ogre::RenderTarget.

◆ suggestPixelFormat()

PixelFormat Ogre::RenderTexture::suggestPixelFormat ( ) const

overridevirtual

Suggests a pixel format to use for extracting the data in this target, when calling copyContentsToMemory.

Reimplemented from Ogre::RenderTarget.

◆ copyContentsToMemory() [2/3]

virtual void Ogre::RenderTarget::copyContentsToMemory	(	const Box &	src,
		const PixelBox &	dst,
		FrameBuffer	buffer = `FB_AUTO`
	)

virtual

Copies the current contents of the render target to a pixelbox.

Remarks: See suggestPixelFormat for a tip as to the best pixel format to extract into, although you can use whatever format you like and the results will be converted.

Implements Ogre::RenderTarget.

◆ copyContentsToMemory() [3/3]

void Ogre::RenderTarget::copyContentsToMemory	(	const PixelBox &	dst,
		FrameBuffer	buffer = `FB_AUTO`
	)

inline

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Deprecated:: This function is deprecated as behavior for dst.size < RenderTarget.size was inconsistent in previous versions of Ogre. Sometimes the whole rect was used as a source, sometimes the rect with the size equal to the size of destination rect but located in the top left corner of the render target, sometimes the destination rect itself. Use the overload with explicitly specified source and destination boxes instead.

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

OgreRenderTexture.h

Public Member Functions

Additional Inherited Members