makVrv::DtVolumetricDrawable Class Reference

class used to render crepuscular rays during the post processor camera draw

Inheritance diagram for makVrv::DtVolumetricDrawable:

Public Types
enum	VOLUMETRIC_PASS { DOWNSAMPLE4X = 0, VOLUMETRIC_RAYS, FINAL_PASS, PASSES_SIZE }

Public Member Functions
virtual	~DtVolumetricDrawable ()
virtual void	reloadShaders ()
virtual void	drawImplementation (osg::RenderInfo &renderInfo) const
virtual void	setSize (int width, int height)
virtual void	setOcclusionTexture (osg::Texture *inputTex)
virtual void	setBaseTexture (osg::Texture *inputTex)
virtual void	setVisible (bool visible)
virtual bool	visible () const
virtual void	setParameters (const DtCrepuscularRaysParameters &params)
Public Member Functions inherited from makVrv::DtPostProcessorDrawable
	DtPostProcessorDrawable (DtDe &de)
	DtPostProcessorDrawable (const DtPostProcessorDrawable &orig, const osg::CopyOp &op)
virtual	~DtPostProcessorDrawable ()
virtual void	drawTexturedQuad (bool drawOnly=false) const
virtual void	beginTexturedQuad () const
virtual void	endTexturedQuad () const
virtual std::string	preprocessorDefinesString (void) const
virtual DtGlProgram *	createProgram (const std::string &path, const std::string &prefixName, const std::string &preprocessor="") const
virtual void	releaseGLObjects (osg::State *state=0) const override

Protected Member Functions
	DtVolumetricDrawable (DtDe &de)
virtual void	initRenderTextures () const
virtual void	downSample4xPass (osg::State *state) const
virtual void	volumetricRaysPass (osg::State *state) const
virtual void	compositeRaysPass (osg::State *state) const
virtual void	createComputeProgramIfNecessary (VOLUMETRIC_PASS pass, const std::string &path, const std::string &name) const
virtual void	createProgramIfNecessary (VOLUMETRIC_PASS pass, const std::string &path, const std::string &prefixName) const
virtual void	initializeUniformLocations (VOLUMETRIC_PASS pass) const
virtual void	zeroOutUniformLocations () const
virtual void	deleteShaders () const
Protected Member Functions inherited from makVrv::DtPostProcessorDrawable
void	setupGeometry () const

Protected Attributes
friend	DtVolumetricDrawableCreator
int	myChannelWidth
int	myChannelHeight
osg::ref_ptr< osg::Texture >	myOcclusionTex
osg::ref_ptr< osg::Texture >	myBaseTex
DtGlTexture *	myMutableDownSampledOcclusionTexture
DtGlTexture *	myMutableVolumetricRaysBuffer
bool	myVisible
std::array< DtGlProgram *, PASSES_SIZE >	myMutablePrograms
DtCrepuscularRaysParameters	myParameters
int	myMutableSlLightPositionOnScreenLoc
int	myMutableSlParametersLoc
int	myMutableSlLightColorLoc
int	myMutableSlOutputScaleLoc
int	myMutableBaseStrengthLoc
int	myMutableBaseTextureLoc
int	myMutableVolumetricTextureLoc
bool	myMutableShadersDirtyFlag
Protected Attributes inherited from makVrv::DtPostProcessorDrawable
DtDe &	myDe
DtGlBuffer *	myMutableVbo = nullptr
DtCoreGlBufferCreator &	myDtCoreGlBufferCreator
DtGlDeleteObjectManager &	myGlDeleteObjectManager

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

Member Enumeration Documentation

enum makVrv::DtVolumetricDrawable::VOLUMETRIC_PASS

Enumerator
DOWNSAMPLE4X
VOLUMETRIC_RAYS
FINAL_PASS
PASSES_SIZE

Constructor & Destructor Documentation

virtual makVrv::DtVolumetricDrawable::~DtVolumetricDrawable ( )

virtual

destructor

makVrv::DtVolumetricDrawable::DtVolumetricDrawable ( DtDe &  de )

protected

constructor. private. only creator can create

makVrv::DtVolumetricDrawable::DtVolumetricDrawable ( )

private

private default constructor. not allowed.

makVrv::DtVolumetricDrawable::DtVolumetricDrawable ( const DtVolumetricDrawable &  )

private

prevent copy-construction

Member Function Documentation

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

private

prevent assignment

virtual void makVrv::DtVolumetricDrawable::reloadShaders ( )

virtual

Trigger shader reload by marking them as dirty using myShadersDirtyFlag.

virtual void makVrv::DtVolumetricDrawable::drawImplementation ( osg::RenderInfo &  renderInfo ) const

virtual

overridden

virtual void makVrv::DtVolumetricDrawable::setSize ( int  width, int  height  )

virtual

overridden currently unneeded because the postprocessor drawable is always deleted/recreated because of channel creation/destruction virtual void releaseGLObjects(osg::State* state = 0) const; //!

overridden currently unneeded because the postprocessor drawable is always deleted/recreated because of channel creation/destruction set the 'viewport' size

virtual void makVrv::DtVolumetricDrawable::setOcclusionTexture ( osg::Texture *  inputTex )

virtual

setter for the input texture from the previous post processor or main rendering

virtual void makVrv::DtVolumetricDrawable::setBaseTexture ( osg::Texture *  inputTex )

virtual

setter for the base texture

virtual void makVrv::DtVolumetricDrawable::setVisible ( bool  visible )

inlinevirtual

set/get visibility

virtual bool makVrv::DtVolumetricDrawable::visible ( ) const

inlinevirtual

virtual void makVrv::DtVolumetricDrawable::setParameters ( const DtCrepuscularRaysParameters &  params )

virtual

communicate the parameters for the crepuscular rays

virtual void makVrv::DtVolumetricDrawable::initRenderTextures ( ) const

protectedvirtual

initializes all the render textures if they have not been initialized yet

virtual void makVrv::DtVolumetricDrawable::downSample4xPass ( osg::State *  state ) const

protectedvirtual

down sample 4x pass

virtual void makVrv::DtVolumetricDrawable::volumetricRaysPass ( osg::State *  state ) const

protectedvirtual

volumetric rays pass

virtual void makVrv::DtVolumetricDrawable::compositeRaysPass ( osg::State *  state ) const

protectedvirtual

final compositing pass

virtual void makVrv::DtVolumetricDrawable::createComputeProgramIfNecessary ( VOLUMETRIC_PASS  pass, const std::string &  path, const std::string &  name  ) const

protectedvirtual

helper function to create compute program

virtual void makVrv::DtVolumetricDrawable::createProgramIfNecessary ( VOLUMETRIC_PASS  pass, const std::string &  path, const std::string &  prefixName  ) const

protectedvirtual

create the drawing program if not created already

virtual void makVrv::DtVolumetricDrawable::initializeUniformLocations ( VOLUMETRIC_PASS  pass ) const

protectedvirtual

initialize locations for the various uniforms

virtual void makVrv::DtVolumetricDrawable::zeroOutUniformLocations ( ) const

protectedvirtual

brief initialize locations of the various uniforms to an unknown/invalid value

virtual void makVrv::DtVolumetricDrawable::deleteShaders ( ) const

protectedvirtual

Delete the shaders.

Member Data Documentation

friend makVrv::DtVolumetricDrawable::DtVolumetricDrawableCreator

protected

friended, to access constructor above

int makVrv::DtVolumetricDrawable::myChannelWidth

protected

int makVrv::DtVolumetricDrawable::myChannelHeight

protected

osg::ref_ptr<osg::Texture> makVrv::DtVolumetricDrawable::myOcclusionTex

protected

osg::ref_ptr<osg::Texture> makVrv::DtVolumetricDrawable::myBaseTex

protected

DtGlTexture* makVrv::DtVolumetricDrawable::myMutableDownSampledOcclusionTexture

mutableprotected

DtGlTexture* makVrv::DtVolumetricDrawable::myMutableVolumetricRaysBuffer

mutableprotected

bool makVrv::DtVolumetricDrawable::myVisible

protected

std::array<DtGlProgram*, PASSES_SIZE> makVrv::DtVolumetricDrawable::myMutablePrograms

mutableprotected

DtCrepuscularRaysParameters makVrv::DtVolumetricDrawable::myParameters

protected

int makVrv::DtVolumetricDrawable::myMutableSlLightPositionOnScreenLoc

mutableprotected

int makVrv::DtVolumetricDrawable::myMutableSlParametersLoc

mutableprotected

int makVrv::DtVolumetricDrawable::myMutableSlLightColorLoc

mutableprotected

int makVrv::DtVolumetricDrawable::myMutableSlOutputScaleLoc

mutableprotected

int makVrv::DtVolumetricDrawable::myMutableBaseStrengthLoc

mutableprotected

int makVrv::DtVolumetricDrawable::myMutableBaseTextureLoc

mutableprotected

int makVrv::DtVolumetricDrawable::myMutableVolumetricTextureLoc

mutableprotected

bool makVrv::DtVolumetricDrawable::myMutableShadersDirtyFlag

mutableprotected

This is set to true upon reloadShaders() and will trigger a recreation in drawImplementation()

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

• /data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-1-branch/include/vrvPostProcessor/DtVolumetricDrawable.h