OGRE  13.6
Object-Oriented Graphics Rendering Engine
Ogre::RenderTexture Class Reference

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. More...
 
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. More...
 
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. More...
 
PixelFormat suggestPixelFormat () const override
 Suggests a pixel format to use for extracting the data in this target, when calling copyContentsToMemory. More...
 
- 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. More...
 
virtual void _detachDepthBuffer ()
 Detaches DepthBuffer without notifying it from the detach. More...
 
virtual void _endUpdate ()
 Method for manual management of rendering - finishes statistics calculation and fires 'postRenderTargetUpdate'. More...
 
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. More...
 
virtual void _updateAutoUpdatedViewports (bool updateStatistics=true)
 Method for manual management of rendering - renders only viewports that are auto updated. More...
 
virtual void _updateViewport (int zorder, bool updateStatistics=true)
 Method for manual management of rendering - renders the given viewport (even if it is not autoupdated) More...
 
virtual void _updateViewport (Viewport *viewport, bool updateStatistics=true)
 Method for manual management of rendering - renders the given viewport (even if it is not autoupdated) More...
 
virtual void addListener (RenderTargetListener *listener)
 Add a listener to this RenderTarget which will be called back before & after rendering. More...
 
virtual ViewportaddViewport (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. More...
 
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. More...
 
virtual void detachDepthBuffer ()
 
uint getCustomAttribute (const String &name)
 simplified API for bindings More...
 
virtual void getCustomAttribute (const String &name, void *pData)
 Retrieve a platform or API-specific piece of information. More...
 
DepthBuffergetDepthBuffer () const
 
uint16 getDepthBufferPool () const
 
virtual uint getFSAA () const
 Indicates whether multisampling is performed on rendering and at what level. More...
 
virtual const StringgetFSAAHint () const
 RenderSystem specific FSAA option. See RenderSystem::_createRenderWindow for details. More...
 
virtual uint32 getHeight (void) const
 
void getMetrics (unsigned int &width, unsigned int &height)
 Retrieve information about the render target. More...
 
virtual const StringgetName (void) const
 Retrieve target's name. More...
 
virtual unsigned short getNumViewports (void) const
 Returns the number of viewports attached to this target. More...
 
virtual uchar getPriority () const
 Gets the priority of a render target. More...
 
const FrameStatsgetStatistics (void) const
 Retrieves details of current rendering performance. More...
 
virtual ViewportgetViewport (unsigned short index)
 Retrieves a pointer to the viewport with the given index. More...
 
virtual ViewportgetViewportByZOrder (int ZOrder)
 Retrieves a pointer to the viewport with the given Z-order. More...
 
virtual uint32 getWidth (void) const
 
virtual bool hasViewportWithZOrder (int ZOrder)
 Returns true if and only if a viewport exists at the given Z-order. More...
 
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 More...
 
virtual bool isActive () const
 Used to retrieve or set the active state of the render target. More...
 
virtual bool isAutoUpdated (void) const
 Gets whether this target is automatically updated if Ogre's rendering loop or Root::_updateAllRenderTargets is being used. More...
 
virtual bool isHardwareGammaEnabled () const
 Indicates whether on rendering, linear colour space is converted to sRGB gamma colour space. More...
 
virtual bool isPrimary (void) const
 Indicates whether this target is the primary window. More...
 
virtual bool isStereoEnabled (void) const
 Indicates whether stereo is currently enabled for this target. More...
 
virtual void removeAllListeners (void)
 Removes all listeners from this instance. More...
 
virtual void removeAllViewports (void)
 Removes all viewports on this target. More...
 
virtual void removeListener (RenderTargetListener *listener)
 Removes a RenderTargetListener previously registered using addListener. More...
 
virtual void removeViewport (int ZOrder)
 Removes a viewport at a given Z-order. More...
 
virtual bool requiresTextureFlipping () const =0
 
void resetStatistics (void)
 Resets saved frame-rate statistices. More...
 
virtual void setActive (bool state)
 Used to set the active state of the render target. More...
 
virtual void setAutoUpdated (bool autoupdate)
 Sets whether this target should be automatically updated if Ogre's rendering loop or Root::_updateAllRenderTargets is being used. More...
 
void setDepthBufferPool (uint16 poolId)
 Sets the pool ID this RenderTarget should query from. More...
 
virtual void setFSAA (uint fsaa, const String &fsaaHint)
 Set the level of multisample AA to be used if hardware support it. More...
 
virtual void setPriority (uchar priority)
 Sets the priority of this render target in relation to the others. More...
 
virtual void swapBuffers ()
 Swaps the frame buffers to display the next frame. More...
 
virtual void update (bool swapBuffers=true)
 Tells the target to update it's contents. More...
 
void writeContentsToFile (const String &filename)
 Writes the current contents of the render target to the named file. More...
 
virtual String writeContentsToTimestampedFile (const String &filenamePrefix, const String &filenameSuffix)
 Writes the current contents of the render target to the (PREFIX)(time-stamp)(SUFFIX) file. More...
 

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

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.

◆ copyContentsToMemory() [3/3]

void Ogre::RenderTarget::copyContentsToMemory
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: