This class encapsulates all the (lazily) created OpenGL objects that are required for doing hdr. It also executes the various hdr passes and the final tone mapping pass..

Public Member Functions
virtual	~DtHdrDrawableRenderData ()

	DtHdrDrawableRenderData ()=delete

	DtHdrDrawableRenderData (const DtHdrDrawableRenderData &rhs)=delete

DtHdrDrawableRenderData &	operator= (const DtHdrDrawableRenderData &rhs)=delete

virtual void	initShaders ()

virtual void	execute (osg::RenderInfo &renderInfo)

virtual void	cleanupGpuMemory ()

virtual void	setInputTexture (osg::Texture *inputTex)

virtual float	localHdrOutputScale ()

Public Attributes
friend	DtHdrDrawableRenderDataCreator

Protected Member Functions
	DtHdrDrawableRenderData (DtDe &de, const DtHdrOptions &options, DtHdrDrawable parent, osg::Texture &lensFlareTexture)

virtual void	initRenderTextures (const osg::Camera *osgCamera)

virtual void	downSample (DtGlTexture src, DtGlTexture dest, osg::State *state)

virtual void	downsample4x (DtGlTexture src, DtGlTexture dest, osg::State *state)

virtual void	extractHL (DtGlTexture src, DtGlTexture dest, osg::State *state)

virtual void	runPass (HDR_PASS prog, DtGlTexture src, DtGlTexture dest, osg::State *state)

virtual void	blur (DtGlTexture src, DtGlTexture dest, DtGlTexture temp, int blurWidth, osg::State state)

virtual void	getBufferPyramidSize (BUFFER_PYRAMID level, int w, int h)

virtual void	genStarStreak (int streak, float dir, float length)

virtual void	genGhostImage (const float ghost_modulation1st, const float ghost_modulation2nd, osg::State *state)

virtual void	composeEffect (void)

virtual void	toneMappingPass (osg::State *state)

virtual void	calculateLuminance (const osg::Camera *osgCamera)

virtual float	adaptiveLuminance (const osg::Camera *osgCamera)

virtual bool	adaptiveLuminanceCompute (const osg::Camera *osgCamera)

virtual float	adaptiveLuminanceRead (const osg::Camera *osgCamera)

virtual float	regularLuminance (const osg::Camera *osgCamera)

virtual float	silverLiningLuminance (const osg::Camera *osgCamera)

virtual void	computeColorModulationRedShift (float *color, float r, float g, float b, int num)

virtual void	computeColorModulation (float *color, float r, float g, float b, int num)

virtual void	computeColorModulationCoefficients ()

virtual void	createComputeProgramIfNecessary (HDR_PASS pass, const std::string &name)

virtual void	createBlurProgramsIfNecessary ()

virtual std::string	preprocessorDefinesString (HDR_PASS pass)

virtual unsigned int	inputTextureId (unsigned int &target, const DtGlTexture src, osg::State state)

virtual void	streakPass0 (int streak, float dec, const float step[2], float stride)

virtual void	streakPass1 (int streak, float dec, const float step[2], float stride)

virtual void	streakPass2 (int streak, float dec, const float step[2], float stride)

virtual void	ghostPass0 (const float *ghost_modulation1st)

virtual void	ghostPass1 (const float *ghost_modulation2nd)

virtual void	gaussianBlurComposePass (void)

virtual void	starStreakCompose (void)

virtual void	finalGlarePass (void)

virtual void	initializeUniformLocations (HDR_PASS pass)

virtual void	zeroOutUniformLocations ()

virtual void	createToneMappingProgramIfNecessary (void)

virtual void	slot_hdrResolutionScaleChanged (int val)

Protected Attributes
DtDe &	myDe

const DtHdrOptions &	myOptions

float	myAspectRatio

std::array< DtGlProgram *, PROGSIZE >	myShaders

float	myStarModulation1st [16]

float	myStarModulation2nd [16]

float	myStarModulation3rd [16]

float	myFilmicGhostModulation1st [16]

float	myFilmicGhostModulation2nd [16]

float	myCameraGhostModulation1st [16]

float	myCameraGhostModulation2nd [16]

float	myHoriModulation1st [16]

float	myHoriModulation2nd [16]

float	myHoriModulation3rd [16]

DtGlTexture *	myComposebuffer [LEVEL_TOTAL]

DtGlTexture *	myBlurbufferA [LEVEL_TOTAL]

DtGlTexture *	myBlurbufferB [LEVEL_TOTAL]

DtGlTexture *	myStreakbufferA [8]

DtGlTexture *	myStreakbufferB [8]

DtGlTexture *	myStreakbufferFinal

DtGlTexture *	myGhost1stBuffer

DtGlTexture *	myGhost2ndBuffer

DtGlTexture *	myGlareBuffer

DtGlTexture *	myLumcurrent

unsigned int	myLumNextBuffer

const float *	myLumNextBufferPtr

DtGlTexture *	myInitialBuffer

double	myLastAdpativeLumFrameTime

int	myExtractHlTresholdAndScalarLoc

int	myStarStreakStepSizeAndStrideLoc

int	myStarStreakColorCoeffLoc

int	myGhostImageScalarLoc

int	myGhostImageColorCoeffLoc

int	myGaussianBlurComposeCoeffLoc

int	myStarStreakComposeNumSamplersLoc

int	myFinalGlarecomposeMixCoeffLoc

int	myElapsedTimeLoc

int	mySceneTexLoc

int	myBlurTexLoc

int	myScalesBlurTexLuminanceSaturationLoc

int	myBlurAmountGammaEnablePassThroughLoc

float	myLastLuminanceValue

double	myLastHdrFrameTime = -1

DtHdrDrawable *	myParent = nullptr

DtSignalConnectionManager	myConnections

osg::ref_ptr< osg::Texture >	myLensMask

osg::ref_ptr< osg::Texture >	myInputTex

Constructor & Destructor Documentation

virtual makVrv::DtHdrDrawableRenderData::~DtHdrDrawableRenderData ( )

virtual

destructor

makVrv::DtHdrDrawableRenderData::DtHdrDrawableRenderData ( )

delete

not allowed

makVrv::DtHdrDrawableRenderData::DtHdrDrawableRenderData ( const DtHdrDrawableRenderData & rhs )

delete

makVrv::DtHdrDrawableRenderData::DtHdrDrawableRenderData	(	DtDe &	de,
		const DtHdrOptions &	options,
		DtHdrDrawable *	parent,
		osg::Texture *&	lensFlareTexture
	)

protected

protected constructor

Member Function Documentation

DtHdrDrawableRenderData& makVrv::DtHdrDrawableRenderData::operator= ( const DtHdrDrawableRenderData & rhs )

delete

virtual void makVrv::DtHdrDrawableRenderData::initShaders ( )

virtual

initialize the rest of the HDR shaders.

virtual void makVrv::DtHdrDrawableRenderData::execute ( osg::RenderInfo & renderInfo )

virtual

do hdr

virtual void makVrv::DtHdrDrawableRenderData::cleanupGpuMemory ( )

virtual

clean up

virtual void makVrv::DtHdrDrawableRenderData::setInputTexture ( osg::Texture * inputTex )

virtual

set the input texture

virtual float makVrv::DtHdrDrawableRenderData::localHdrOutputScale ( )

virtual

hdr output scale this drawable calulated or used last frame

virtual void makVrv::DtHdrDrawableRenderData::initRenderTextures ( const osg::Camera * osgCamera )

protectedvirtual

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

virtual void makVrv::DtHdrDrawableRenderData::downSample	(	DtGlTexture *	src,
		DtGlTexture *	dest,
		osg::State *	state
	)

protectedvirtual

downsample the the src texture into the dest texture (or upsample if the dest is larger)

virtual void makVrv::DtHdrDrawableRenderData::downsample4x	(	DtGlTexture *	src,
		DtGlTexture *	dest,
		osg::State *	state
	)

protectedvirtual

same as downsample except it samples a 4x4 square in the src for each sample in the dest this helps reduce flickering for really bright objects like light points.

virtual void makVrv::DtHdrDrawableRenderData::extractHL	(	DtGlTexture *	src,
		DtGlTexture *	dest,
		osg::State *	state
	)

protectedvirtual

extract the anything above the lumThreshold and put it in the dest render texture

virtual void makVrv::DtHdrDrawableRenderData::runPass	(	HDR_PASS	prog,
		DtGlTexture *	src,
		DtGlTexture *	dest,
		osg::State *	state
	)

protectedvirtual

run the specified prog on the src and put the result in dest. Used mostly for blur shaders.

virtual void makVrv::DtHdrDrawableRenderData::blur	(	DtGlTexture *	src,
		DtGlTexture *	dest,
		DtGlTexture *	temp,
		int	blurWidth,
		osg::State *	state
	)

protectedvirtual

blur pass

virtual void makVrv::DtHdrDrawableRenderData::getBufferPyramidSize	(	BUFFER_PYRAMID	level,
		int *	w,
		int *	h
	)

protectedvirtual

calculate the buffer size for a particular blur level

virtual void makVrv::DtHdrDrawableRenderData::genStarStreak	(	int	streak,
		float	dir,
		float	length
	)

protectedvirtual

run the star streak shaders for a particular streak direction and length

virtual void makVrv::DtHdrDrawableRenderData::genGhostImage	(	const float *	ghost_modulation1st,
		const float *	ghost_modulation2nd,
		osg::State *	state
	)

protectedvirtual

run the shaders to generate the ghosting/lens flare effect

virtual void makVrv::DtHdrDrawableRenderData::composeEffect ( void )

protectedvirtual

compose the three HDR effects into a single render texture.

virtual void makVrv::DtHdrDrawableRenderData::toneMappingPass ( osg::State * state )

protectedvirtual

run the final tone mapping pass that combines the effects texture with the main rendering and scales everything appropriately

virtual void makVrv::DtHdrDrawableRenderData::calculateLuminance ( const osg::Camera * osgCamera )

protectedvirtual

calculate the luminance scaling to use in the tone mapping

virtual float makVrv::DtHdrDrawableRenderData::adaptiveLuminance ( const osg::Camera * osgCamera )

protectedvirtual

adaptive luminance (do the pass, read, etc)

virtual bool makVrv::DtHdrDrawableRenderData::adaptiveLuminanceCompute ( const osg::Camera * osgCamera )

protectedvirtual

compute adaptive luminance

virtual float makVrv::DtHdrDrawableRenderData::adaptiveLuminanceRead ( const osg::Camera * osgCamera )

protectedvirtual

read back the adaptive luminance

virtual float makVrv::DtHdrDrawableRenderData::regularLuminance ( const osg::Camera * osgCamera )

protectedvirtual

non-adaptive luminance

virtual float makVrv::DtHdrDrawableRenderData::silverLiningLuminance ( const osg::Camera * osgCamera )

protectedvirtual

luminance per Silver Lining

virtual void makVrv::DtHdrDrawableRenderData::computeColorModulationRedShift	(	float *	color,
		float	r,
		float	g,
		float	b,
		int	num
	)

protectedvirtual

helper functions used for creating color constants

virtual void makVrv::DtHdrDrawableRenderData::computeColorModulation	(	float *	color,
		float	r,
		float	g,
		float	b,
		int	num
	)

protectedvirtual

virtual void makVrv::DtHdrDrawableRenderData::computeColorModulationCoefficients ( )

protectedvirtual

virtual void makVrv::DtHdrDrawableRenderData::createComputeProgramIfNecessary	(	HDR_PASS	pass,
		const std::string &	name
	)

protectedvirtual

helper function to create compute program

virtual void makVrv::DtHdrDrawableRenderData::createBlurProgramsIfNecessary ( )

protectedvirtual

virtual std::string makVrv::DtHdrDrawableRenderData::preprocessorDefinesString ( HDR_PASS pass )

protectedvirtual

preprocessor string taking into account the current options. NOTE: This is a different signature than base class function (but calls up to base class)

virtual unsigned int makVrv::DtHdrDrawableRenderData::inputTextureId	(	unsigned int &	target,
		const DtGlTexture *	src,
		osg::State *	state
	)

protectedvirtual

get the OpenGL texture id and target (2D for regular, 2D array if in VR)

virtual void makVrv::DtHdrDrawableRenderData::streakPass0	(	int	streak,
		float	dec,
		const float	step[2],
		float	stride
	)

protectedvirtual

streak passes

virtual void makVrv::DtHdrDrawableRenderData::streakPass1	(	int	streak,
		float	dec,
		const float	step[2],
		float	stride
	)

protectedvirtual

virtual void makVrv::DtHdrDrawableRenderData::streakPass2	(	int	streak,
		float	dec,
		const float	step[2],
		float	stride
	)

protectedvirtual

virtual void makVrv::DtHdrDrawableRenderData::ghostPass0 ( const float * ghost_modulation1st )

protectedvirtual

ghost image passes

virtual void makVrv::DtHdrDrawableRenderData::ghostPass1 ( const float * ghost_modulation2nd )

protectedvirtual

virtual void makVrv::DtHdrDrawableRenderData::gaussianBlurComposePass ( void )

protectedvirtual

final passes

virtual void makVrv::DtHdrDrawableRenderData::starStreakCompose ( void )

protectedvirtual

virtual void makVrv::DtHdrDrawableRenderData::finalGlarePass ( void )

protectedvirtual

virtual void makVrv::DtHdrDrawableRenderData::initializeUniformLocations ( HDR_PASS pass )

protectedvirtual

init uniform locations from the compiled shader

virtual void makVrv::DtHdrDrawableRenderData::zeroOutUniformLocations ( )

protectedvirtual

set initial value of uniform locations to an invalid value

virtual void makVrv::DtHdrDrawableRenderData::createToneMappingProgramIfNecessary ( void )

protectedvirtual

create the tone mapping program if not created already

virtual void makVrv::DtHdrDrawableRenderData::slot_hdrResolutionScaleChanged ( int val )

protectedvirtual

Trigger shader recompile if resolution scale has changed.

Member Data Documentation

friend makVrv::DtHdrDrawableRenderData::DtHdrDrawableRenderDataCreator

only friend can create

DtDe& makVrv::DtHdrDrawableRenderData::myDe

protected

const DtHdrOptions& makVrv::DtHdrDrawableRenderData::myOptions

protected

float makVrv::DtHdrDrawableRenderData::myAspectRatio

protected

std::array<DtGlProgram*, PROGSIZE> makVrv::DtHdrDrawableRenderData::myShaders

protected

float makVrv::DtHdrDrawableRenderData::myStarModulation1st[16]

protected

float makVrv::DtHdrDrawableRenderData::myStarModulation2nd[16]

protected

float makVrv::DtHdrDrawableRenderData::myStarModulation3rd[16]

protected

float makVrv::DtHdrDrawableRenderData::myFilmicGhostModulation1st[16]

protected

float makVrv::DtHdrDrawableRenderData::myFilmicGhostModulation2nd[16]

protected

float makVrv::DtHdrDrawableRenderData::myCameraGhostModulation1st[16]

protected

float makVrv::DtHdrDrawableRenderData::myCameraGhostModulation2nd[16]

protected

float makVrv::DtHdrDrawableRenderData::myHoriModulation1st[16]

protected

float makVrv::DtHdrDrawableRenderData::myHoriModulation2nd[16]

protected

float makVrv::DtHdrDrawableRenderData::myHoriModulation3rd[16]

protected

DtGlTexture* makVrv::DtHdrDrawableRenderData::myComposebuffer[LEVEL_TOTAL]

protected

mutables needed since osg drawable draw implementations are const functions. This allows us to keep track of a bit of state that is needed between frames Also these are protected instead of private because they may be needed by classes derived from this class

Render textures need to be initialized in draw implementation so they need to be mutable...

DtGlTexture* makVrv::DtHdrDrawableRenderData::myBlurbufferA[LEVEL_TOTAL]

protected

DtGlTexture* makVrv::DtHdrDrawableRenderData::myBlurbufferB[LEVEL_TOTAL]

protected

DtGlTexture* makVrv::DtHdrDrawableRenderData::myStreakbufferA[8]

protected

DtGlTexture* makVrv::DtHdrDrawableRenderData::myStreakbufferB[8]

protected

DtGlTexture* makVrv::DtHdrDrawableRenderData::myStreakbufferFinal

protected

DtGlTexture* makVrv::DtHdrDrawableRenderData::myGhost1stBuffer

protected

DtGlTexture* makVrv::DtHdrDrawableRenderData::myGhost2ndBuffer

protected

DtGlTexture* makVrv::DtHdrDrawableRenderData::myGlareBuffer

protected

DtGlTexture* makVrv::DtHdrDrawableRenderData::myLumcurrent

protected

unsigned int makVrv::DtHdrDrawableRenderData::myLumNextBuffer

protected

const float* makVrv::DtHdrDrawableRenderData::myLumNextBufferPtr

protected

DtGlTexture* makVrv::DtHdrDrawableRenderData::myInitialBuffer

protected

double makVrv::DtHdrDrawableRenderData::myLastAdpativeLumFrameTime

protected

need to keep track of the previous frame time in draw implementation so this needs to be mutable.

int makVrv::DtHdrDrawableRenderData::myExtractHlTresholdAndScalarLoc

protected

locations of various uniforms in the shaders

int makVrv::DtHdrDrawableRenderData::myStarStreakStepSizeAndStrideLoc

protected

int makVrv::DtHdrDrawableRenderData::myStarStreakColorCoeffLoc

protected

int makVrv::DtHdrDrawableRenderData::myGhostImageScalarLoc

protected

int makVrv::DtHdrDrawableRenderData::myGhostImageColorCoeffLoc

protected

int makVrv::DtHdrDrawableRenderData::myGaussianBlurComposeCoeffLoc

protected

int makVrv::DtHdrDrawableRenderData::myStarStreakComposeNumSamplersLoc

protected

int makVrv::DtHdrDrawableRenderData::myFinalGlarecomposeMixCoeffLoc

protected

int makVrv::DtHdrDrawableRenderData::myElapsedTimeLoc

protected

int makVrv::DtHdrDrawableRenderData::mySceneTexLoc

protected

int makVrv::DtHdrDrawableRenderData::myBlurTexLoc

protected

int makVrv::DtHdrDrawableRenderData::myScalesBlurTexLuminanceSaturationLoc

protected

int makVrv::DtHdrDrawableRenderData::myBlurAmountGammaEnablePassThroughLoc

protected

float makVrv::DtHdrDrawableRenderData::myLastLuminanceValue

protected

double makVrv::DtHdrDrawableRenderData::myLastHdrFrameTime = -1

protected

DtHdrDrawable* makVrv::DtHdrDrawableRenderData::myParent = nullptr

protected

DtSignalConnectionManager makVrv::DtHdrDrawableRenderData::myConnections

protected

osg::ref_ptr<osg::Texture> makVrv::DtHdrDrawableRenderData::myLensMask

protected

osg::ref_ptr<osg::Texture> makVrv::DtHdrDrawableRenderData::myInputTex

protected

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

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

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation