Compute shading tables for encoded normals. More...

#include <vtkEncodedGradientShader.h>

Inheritance diagram for vtkEncodedGradientShader:

Collaboration diagram for vtkEncodedGradientShader:

Public Types
typedef vtkObject	Superclass

Public Member Functions
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class. More...

vtkEncodedGradientShader *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent) override
	Print the vtkEncodedGradientShader. More...

void	UpdateShadingTable (vtkRenderer ren, vtkVolume vol, vtkEncodedGradientEstimator *gradest)
	Cause the shading table to be updated. More...


virtual void	SetZeroNormalDiffuseIntensity (float)
	Set / Get the intensity diffuse / specular light used for the zero normals. More...

virtual float	GetZeroNormalDiffuseIntensity ()
	Set / Get the intensity diffuse / specular light used for the zero normals. More...

virtual void	SetZeroNormalSpecularIntensity (float)
	Set / Get the intensity diffuse / specular light used for the zero normals. More...

virtual float	GetZeroNormalSpecularIntensity ()
	Set / Get the intensity diffuse / specular light used for the zero normals. More...


float *	GetRedDiffuseShadingTable (vtkVolume *vol)
	Get the red/green/blue shading table. More...

float *	GetGreenDiffuseShadingTable (vtkVolume *vol)
	Get the red/green/blue shading table. More...

float *	GetBlueDiffuseShadingTable (vtkVolume *vol)
	Get the red/green/blue shading table. More...

float *	GetRedSpecularShadingTable (vtkVolume *vol)
	Get the red/green/blue shading table. More...

float *	GetGreenSpecularShadingTable (vtkVolume *vol)
	Get the red/green/blue shading table. More...

float *	GetBlueSpecularShadingTable (vtkVolume *vol)
	Get the red/green/blue shading table. More...


virtual void	SetActiveComponent (int)
	Set the active component for shading. More...

virtual int	GetActiveComponent ()
	Set the active component for shading. More...

Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)

virtual void	DebugOn ()
	Turn debugging output on. More...

virtual void	DebugOff ()
	Turn debugging output off. More...

bool	GetDebug ()
	Get the value of the debug flag. More...

void	SetDebug (bool debugFlag)
	Set the value of the debug flag. More...

virtual void	Modified ()
	Update the modification time for this object. More...

virtual vtkMTimeType	GetMTime ()
	Return this object's modified time. More...

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. More...

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

vtkTypeBool	HasObserver (unsigned long event)

vtkTypeBool	HasObserver (const char *event)

int	InvokeEvent (unsigned long event)

int	InvokeEvent (const char *event)

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

void	RemoveObservers (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

vtkTypeBool	HasObserver (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Allow user to set the AbortFlagOn() with the return value of the callback method. More...

int	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not. More...

int	InvokeEvent (const char event, void callData)
	This method invokes an event and return whether the event was aborted or not. More...

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string. More...

virtual vtkTypeBool	IsA (const char *name)
	Return 1 if this class is the same type of (or a subclass of) the named class. More...

virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class). More...

virtual void	Delete ()
	Delete a VTK object. More...

virtual void	FastDelete ()
	Delete a reference to this object. More...

void	InitializeObjectBase ()

void	Print (ostream &os)
	Print an object to an ostream. More...

virtual void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object). More...

virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object). More...

int	GetReferenceCount ()
	Return the current reference count of this object. More...

void	SetReferenceCount (int)
	Sets the reference count. More...

bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space. More...

virtual void	PrintHeader (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses. More...

virtual void	PrintTrailer (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses. More...

Static Public Member Functions
static vtkEncodedGradientShader *	New ()

static vtkTypeBool	IsTypeOf (const char *type)

static vtkEncodedGradientShader *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

static void	BreakOnError ()
	This method is called when vtkErrorMacro executes. More...

static void	SetGlobalWarningDisplay (int val)
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static int	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class. More...

static vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class). More...

static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within. More...

static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space. More...

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkEncodedGradientShader ()

	~vtkEncodedGradientShader () override

void	BuildShadingTable (int index, double lightDirection[3], double lightAmbientColor[3], double lightDiffuseColor[3], double lightSpecularColor[3], double lightIntensity, double viewDirection[3], double material[4], int twoSided, vtkEncodedGradientEstimator *gradest, int updateFlag)
	Build a shading table for a light with the specified direction, and color for an object of the specified material properties. More...

Protected Member Functions inherited from vtkObject
	vtkObject ()

	~vtkObject () override

void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=nullptr)
	These methods allow a command to exclusively grab all events. More...

void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events. More...

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	RegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
float *	ShadingTable [VTK_MAX_SHADING_TABLES][6]

vtkVolume *	ShadingTableVolume [VTK_MAX_SHADING_TABLES]

int	ShadingTableSize [VTK_MAX_SHADING_TABLES]

int	ActiveComponent

float	ZeroNormalDiffuseIntensity

float	ZeroNormalSpecularIntensity

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Additional Inherited Members
Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

Detailed Description

Compute shading tables for encoded normals.

vtkEncodedGradientShader computes shading tables for encoded normals that indicates the amount of diffuse and specular illumination that is received from all light sources at a surface location with that normal. For diffuse illumination this is accurate, but for specular illumination it is approximate for perspective projections since the center view direction is always used as the view direction. Since the shading table is dependent on the volume (for the transformation that must be applied to the normals to put them into world coordinates) there is a shading table per volume. This is necessary because multiple volumes can share a volume mapper.

Definition at line 45 of file vtkEncodedGradientShader.h.

Member Typedef Documentation

◆ Superclass

typedef vtkObject vtkEncodedGradientShader::Superclass

Definition at line 49 of file vtkEncodedGradientShader.h.

Constructor & Destructor Documentation

◆ vtkEncodedGradientShader()

vtkEncodedGradientShader::vtkEncodedGradientShader ( )

protected

◆ ~vtkEncodedGradientShader()

vtkEncodedGradientShader::~vtkEncodedGradientShader ( )

overrideprotected

Member Function Documentation

◆ New()

static vtkEncodedGradientShader * vtkEncodedGradientShader::New ( )

static

◆ IsTypeOf()

static vtkTypeBool vtkEncodedGradientShader::IsTypeOf ( const char * type )

static

◆ IsA()

virtual vtkTypeBool vtkEncodedGradientShader::IsA ( const char * name )

virtual

Return 1 if this class is the same type of (or a subclass of) the named class.

Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkObjectBase.

◆ SafeDownCast()

static vtkEncodedGradientShader * vtkEncodedGradientShader::SafeDownCast ( vtkObjectBase * o )

static

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkEncodedGradientShader::NewInstanceInternal ( ) const

protectedvirtual

◆ NewInstance()

vtkEncodedGradientShader * vtkEncodedGradientShader::NewInstance ( ) const

◆ PrintSelf()

void vtkEncodedGradientShader::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)

overridevirtual

Print the vtkEncodedGradientShader.

Reimplemented from vtkObject.

◆ SetZeroNormalDiffuseIntensity()

virtual void vtkEncodedGradientShader::SetZeroNormalDiffuseIntensity ( float )

virtual

Set / Get the intensity diffuse / specular light used for the zero normals.

◆ GetZeroNormalDiffuseIntensity()

virtual float vtkEncodedGradientShader::GetZeroNormalDiffuseIntensity ( )

virtual

Set / Get the intensity diffuse / specular light used for the zero normals.

◆ SetZeroNormalSpecularIntensity()

virtual void vtkEncodedGradientShader::SetZeroNormalSpecularIntensity ( float )

virtual

Set / Get the intensity diffuse / specular light used for the zero normals.

◆ GetZeroNormalSpecularIntensity()

virtual float vtkEncodedGradientShader::GetZeroNormalSpecularIntensity ( )

virtual

Set / Get the intensity diffuse / specular light used for the zero normals.

◆ UpdateShadingTable()

void vtkEncodedGradientShader::UpdateShadingTable	(	vtkRenderer *	ren,
		vtkVolume *	vol,
		vtkEncodedGradientEstimator *	gradest
	)

Cause the shading table to be updated.