makVrv::DtGlRenderTexture Class Reference

A helper classes for creating a RTT target, optionally including depth buffer.

Public Member Functions
	DtGlRenderTexture (const DtGlRenderTextureInitializer &initializer)
virtual	~DtGlRenderTexture ()
virtual bool	init (DtGlImageType colorFormat=RGB32F, GLenum minFilter=GL_LINEAR, GLenum wrapMode=GL_CLAMP_TO_EDGE)
virtual bool	init (unsigned int glColorTexId)
virtual bool	initDepth (DtGlImageType depthFormat=D32)
virtual bool	initDepth (unsigned int glDepthTexId)
virtual void	activateForDrawingInto (bool shouldClear=true, bool setViewport=true)
virtual void	copyFromFramebuffer (unsigned int srcFbo, unsigned int bufferBits)
virtual void	copyFromTexture (unsigned int srcTexture, bool isDepth, bool isArray=false, unsigned int srclayer=0, unsigned int layerCount=1)
virtual void	deactivateForDrawingInto ()
virtual void	setFboTextureLayer (unsigned int layer)
virtual void	bindColorTexture (int unit)
virtual void	bindDepthTexture (int unit)
virtual void	unbindColorTexture (int unit)
virtual void	unbindDepthTexture (int unit)
virtual int	width () const
virtual int	height () const
virtual int	layers () const
virtual unsigned int	colorId () const
virtual unsigned int	depthId () const
virtual int	numSamples () const
virtual bool	useMultiView () const
virtual bool	usingStencil () const
virtual void	setDeleteFbosOnDestruction (bool val)
virtual bool	deleteFbosOnDestruction (void) const
virtual DtGlFboAndContext	fbo (void) const
virtual DtGlFboAndContext	multiSampleFbo (void) const

Protected Member Functions
virtual bool	hasColorTexture (void) const
virtual void	attemptToDeleteFbo (DtGlFboAndContext &fbo)
virtual void	initFBO (const std::string &name)
virtual GLenum	getGLInternalTypes (DtGlImageType colorType)

Protected Attributes
DtGlFboAndContext	myFboId
DtGlFboAndContext	myMultisampleFboId
unsigned int	myMultisampleColorBuffer
unsigned int	myMultisampleDepthBuffer
bool	myDeleteFbosOnDestruction
int	myWidth
int	myHeight
int	myLayers
bool	myHasDepth
bool	myIsFrameBufferValid
bool	myUseMultiView
DtGlTexture *	myColorTexture = nullptr
DtGlTexture *	myDepthTexture = nullptr
std::string	myName
int	myNumSamples

Private Member Functions
	DtGlRenderTexture ()
	DtGlRenderTexture (const DtGlRenderTexture &)
DtGlRenderTexture &	operator= (const DtGlRenderTexture &)

Constructor & Destructor Documentation

makVrv::DtGlRenderTexture::DtGlRenderTexture ( )

private

private default constructor

makVrv::DtGlRenderTexture::DtGlRenderTexture ( const DtGlRenderTexture &  )

private

prevent copy-construction

makVrv::DtGlRenderTexture::DtGlRenderTexture

(

const DtGlRenderTextureInitializer &

initializer

)

create a RTT with a given name, with a given height and width if number of samples is greater than 0 then it will use a multisample render buffer

virtual makVrv::DtGlRenderTexture::~DtGlRenderTexture ( )

virtual

DTOR.

Member Function Documentation

DtGlRenderTexture& makVrv::DtGlRenderTexture::operator= ( const DtGlRenderTexture &  )

private

prevent assignment

virtual bool makVrv::DtGlRenderTexture::init ( DtGlImageType  colorFormat = RGB32F, GLenum  minFilter = GL_LINEAR, GLenum  wrapMode = GL_CLAMP_TO_EDGE  )

virtual

initialize the RTT with a texture format and sampling/wrapping hints

virtual bool makVrv::DtGlRenderTexture::init ( unsigned int  glColorTexId )

virtual

Initialize the RTT color from an existing OpenGL Texture. Assumes the texture sampling and wrapping hints have already been setup. If DtGlRenderTexture was created with multiple samples, this texture needs to match.

virtual bool makVrv::DtGlRenderTexture::initDepth ( DtGlImageType  depthFormat = D32 )

virtual

Optionally create a depth texture to go with the RTT that is bound when drawing into.

virtual bool makVrv::DtGlRenderTexture::initDepth ( unsigned int  glDepthTexId )

virtual

Initialize depth texture from an existing OpenGL texture. Assumes the texture sampling and wrapping hints have already been setup.

virtual void makVrv::DtGlRenderTexture::activateForDrawingInto ( bool  shouldClear = true, bool  setViewport = true  )

virtual

activate this RTT for drawing into. Binds the internal FBO and color/depth targets

virtual void makVrv::DtGlRenderTexture::copyFromFramebuffer ( unsigned int  srcFbo, unsigned int  bufferBits  )

virtual

copy the framebuffer specified by srcFbo into the textures in this object. buffer bits are the GL mask of which buffers to copy (GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT for example)

virtual void makVrv::DtGlRenderTexture::copyFromTexture ( unsigned int  srcTexture, bool  isDepth, bool  isArray = false, unsigned int  srclayer = 0, unsigned int  layerCount = 1  )

virtual

copy the srcTexture into our color texture or depth texture if isDepth is true.

virtual void makVrv::DtGlRenderTexture::deactivateForDrawingInto ( )

virtual

deactivates the RTT

virtual void makVrv::DtGlRenderTexture::setFboTextureLayer ( unsigned int  layer )

virtual

set the fbo texture layer, only useful for texture arrays

virtual void makVrv::DtGlRenderTexture::bindColorTexture ( int  unit )

virtual

bind the color texture to a given texture unit for use as a source texture for rendering

virtual void makVrv::DtGlRenderTexture::bindDepthTexture ( int  unit )

virtual

bind the depth texture, if it exists, to a given texture unit for use as a source for rendering

virtual void makVrv::DtGlRenderTexture::unbindColorTexture ( int  unit )

virtual

unbind the color texture (set the currently bound texture to 0 for the specified unit

virtual void makVrv::DtGlRenderTexture::unbindDepthTexture ( int  unit )

virtual

unbind the depth texture (set the currently bound texture to 0 for the specified unit

virtual int makVrv::DtGlRenderTexture::width ( ) const

virtual

returns width of the RTT

virtual int makVrv::DtGlRenderTexture::height ( ) const

virtual

returns height of the RTT

virtual int makVrv::DtGlRenderTexture::layers ( ) const

virtual

returns layers of the RTT

virtual unsigned int makVrv::DtGlRenderTexture::colorId ( ) const

virtual

returns the OpenGL texture id of the color texture. Must be initialized first otherwise it will return 0.

virtual unsigned int makVrv::DtGlRenderTexture::depthId ( ) const

virtual

returns the OpenGL texture id of the depth texture. Must be initialized first otherwise it will return 0.

virtual int makVrv::DtGlRenderTexture::numSamples ( ) const

virtual

returns the number of multi samples to use with this render to texture

virtual bool makVrv::DtGlRenderTexture::useMultiView ( ) const

virtual

return weather or not multiview is being used

virtual bool makVrv::DtGlRenderTexture::usingStencil ( ) const

virtual

return true if there's a depth texture and it's using a packed stencil format

virtual void makVrv::DtGlRenderTexture::setDeleteFbosOnDestruction ( bool  val )

virtual

virtual bool makVrv::DtGlRenderTexture::deleteFbosOnDestruction ( void  ) const

virtual

virtual DtGlFboAndContext makVrv::DtGlRenderTexture::fbo ( void  ) const

virtual

virtual DtGlFboAndContext makVrv::DtGlRenderTexture::multiSampleFbo ( void  ) const

virtual

virtual bool makVrv::DtGlRenderTexture::hasColorTexture ( void  ) const

protectedvirtual

helper

virtual void makVrv::DtGlRenderTexture::attemptToDeleteFbo ( DtGlFboAndContext &  fbo )

protectedvirtual

helper

virtual void makVrv::DtGlRenderTexture::initFBO ( const std::string &  name )

protectedvirtual

virtual GLenum makVrv::DtGlRenderTexture::getGLInternalTypes ( DtGlImageType  colorType )

protectedvirtual

Member Data Documentation

DtGlFboAndContext makVrv::DtGlRenderTexture::myFboId

protected

DtGlFboAndContext makVrv::DtGlRenderTexture::myMultisampleFboId

protected

unsigned int makVrv::DtGlRenderTexture::myMultisampleColorBuffer

protected

unsigned int makVrv::DtGlRenderTexture::myMultisampleDepthBuffer

protected

bool makVrv::DtGlRenderTexture::myDeleteFbosOnDestruction

protected

int makVrv::DtGlRenderTexture::myWidth

protected

int makVrv::DtGlRenderTexture::myHeight

protected

int makVrv::DtGlRenderTexture::myLayers

protected

bool makVrv::DtGlRenderTexture::myHasDepth

protected

bool makVrv::DtGlRenderTexture::myIsFrameBufferValid

protected

bool makVrv::DtGlRenderTexture::myUseMultiView

protected

DtGlTexture* makVrv::DtGlRenderTexture::myColorTexture = nullptr

protected

DtGlTexture* makVrv::DtGlRenderTexture::myDepthTexture = nullptr

protected

std::string makVrv::DtGlRenderTexture::myName

protected

int makVrv::DtGlRenderTexture::myNumSamples

protected

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

• /data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-0-branch/include/vrvGraphicsUtils/DtGlRenderToTexture.h