Renders a glowing outline using a image processing pass. More...

#include <vtkOutlineGlowPass.h>

Inheritance diagram for vtkOutlineGlowPass:

Collaboration diagram for vtkOutlineGlowPass:

Public Types
typedef vtkImageProcessingPass	Superclass

Public Types inherited from vtkImageProcessingPass
typedef vtkOpenGLRenderPass	Superclass

Public Types inherited from vtkOpenGLRenderPass
typedef vtkRenderPass	Superclass

Public Types inherited from vtkRenderPass
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...

vtkOutlineGlowPass *	NewInstance () const

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

void	Render (const vtkRenderState *s) override
	Perform rendering according to a render state `s`. More...

void	ReleaseGraphicsResources (vtkWindow *w) override
	Release graphics resources and ask components to release their own resources. More...

virtual float	GetOutlineIntensity ()
	Get/Set the intensity of the outline. More...

virtual void	SetOutlineIntensity (float)

Public Member Functions inherited from vtkImageProcessingPass
vtkImageProcessingPass *	NewInstance () const

virtual vtkRenderPass *	GetDelegatePass ()
	Delegate for rendering the image to be processed. More...

virtual void	SetDelegatePass (vtkRenderPass *delegatePass)
	Delegate for rendering the image to be processed. More...

Public Member Functions inherited from vtkOpenGLRenderPass
vtkOpenGLRenderPass *	NewInstance () const

virtual bool	SetShaderParameters (vtkShaderProgram program, vtkAbstractMapper mapper, vtkProp prop, vtkOpenGLVertexArrayObject VAO=nullptr)
	Update the uniforms of the shader program. More...

virtual vtkMTimeType	GetShaderStageMTime ()
	For multi-stage render passes that need to change shader code during a single pass, use this method to notify a mapper that the shader needs to be rebuilt (rather than reuse the last cached shader. More...

virtual void	SetActiveDrawBuffers (unsigned int)
	Number of active draw buffers. More...

virtual unsigned int	GetActiveDrawBuffers ()

virtual bool	PreReplaceShaderValues (std::string &vertexShader, std::string &geometryShader, std::string &fragmentShader, vtkAbstractMapper mapper, vtkProp prop)
	Use vtkShaderProgram::Substitute to replace. More...

virtual bool	PostReplaceShaderValues (std::string &vertexShader, std::string &geometryShader, std::string &fragmentShader, vtkAbstractMapper mapper, vtkProp prop)
	Use vtkShaderProgram::Substitute to replace. More...

Public Member Functions inherited from vtkRenderPass
vtkRenderPass *	NewInstance () const

virtual int	GetNumberOfRenderedProps ()
	Number of props rendered at the last Render call. 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	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)

vtkTypeBool	InvokeEvent (unsigned long event)

vtkTypeBool	InvokeEvent (const char *event)

std::string	GetObjectDescription () const override
	The object description printed in messages and PrintSelf output. More...

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...

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

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

virtual void	SetObjectName (const std::string &objectName)
	Set/get the name of this object for reporting purposes. More...

virtual std::string	GetObjectName () const
	Set/get the name of this object for reporting purposes. More...

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

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...

virtual bool	UsesGarbageCollector () const
	Indicate whether the class uses `vtkGarbageCollector` or not. More...

Static Public Member Functions
static vtkOutlineGlowPass *	New ()

static vtkTypeBool	IsTypeOf (const char *type)

static vtkOutlineGlowPass *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkImageProcessingPass
static vtkTypeBool	IsTypeOf (const char *type)

static vtkImageProcessingPass *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkOpenGLRenderPass
static vtkTypeBool	IsTypeOf (const char *type)

static vtkOpenGLRenderPass *	SafeDownCast (vtkObjectBase *o)

static vtkInformationObjectBaseVectorKey *	RenderPasses ()
	Key containing information about the current pass. More...

Static Public Member Functions inherited from vtkRenderPass
static vtkTypeBool	IsTypeOf (const char *type)

static vtkRenderPass *	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 (vtkTypeBool 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 vtkTypeBool	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

	vtkOutlineGlowPass ()
	Default constructor. More...

	~vtkOutlineGlowPass () override
	Destructor. More...

Protected Member Functions inherited from vtkImageProcessingPass
	vtkImageProcessingPass ()
	Default constructor. More...

	~vtkImageProcessingPass () override
	Destructor. More...

void	RenderDelegate (const vtkRenderState s, int width, int height, int newWidth, int newHeight, vtkOpenGLFramebufferObject fbo, vtkTextureObject *target)
	Render delegate with a image of different dimensions than the original one. More...

Protected Member Functions inherited from vtkOpenGLRenderPass
	vtkOpenGLRenderPass ()

	~vtkOpenGLRenderPass () override

void	PreRender (const vtkRenderState *s)
	Call before rendering to update the actors' information keys. More...

virtual void	PreRenderProp (vtkProp *prop)
	Called in PreRender to give a chance to subclasses to set additonal information keys. More...

void	PostRender (const vtkRenderState *s)
	Call after rendering to clean up the actors' information keys. More...

virtual void	PostRenderProp (vtkProp *prop)
	Called in PreRender to give a chance to subclasses to clean up information keys. More...

Protected Member Functions inherited from vtkRenderPass
	vtkRenderPass ()
	Default constructor. More...

	~vtkRenderPass () override
	Destructor. More...

void	UpdateCamera (vtkRenderer *renderer)
	Call UpdateCamera() on Renderer. More...

void	ClearLights (vtkRenderer *renderer)
	Call ClearLights() on Renderer. More...

void	UpdateLightGeometry (vtkRenderer *renderer)
	Call UpdateLightGeometry() on Renderer. More...

void	UpdateLights (vtkRenderer *renderer)
	Call UpdateLights() on Renderer. More...

void	UpdateGeometry (vtkRenderer renderer, vtkFrameBufferObjectBase fbo=nullptr)
	Call UpdateGeometry() on Renderer. More...

void	SetLastRenderingUsedDepthPeeling (vtkRenderer *renderer, bool value)
	Modify protected member LastRenderingUsedDepthPeeling on Renderer. 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	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
vtkOpenGLFramebufferObject *	FrameBufferObject
	Graphics resources. More...

vtkTextureObject *	ScenePass

vtkTextureObject *	BlurPass1

vtkTextureObject *	BlurPass2

vtkOpenGLHelper *	BlurProgram

vtkOpenGLHelper *	UpscaleProgram

float	OutlineIntensity = 3.0f

Protected Attributes inherited from vtkImageProcessingPass
vtkRenderPass *	DelegatePass

Protected Attributes inherited from vtkOpenGLRenderPass
unsigned int	ActiveDrawBuffers = 0

Protected Attributes inherited from vtkRenderPass
int	NumberOfRenderedProps

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

std::string	ObjectName

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

Renders a glowing outline using a image processing pass.

Create a glowing outline of the image rendered by the delegate.

This render pass was designed to highlight parts of a scene by applying the render pass to a layered renderer on top of the main scene. For optimal results, actors that form the outline should be brightly colored with lighting disabled. The outline will have the color of the actors. There is only one outline around all objects rendered by the delegate.

This pass expects an initialized depth buffer and color buffer. Initialized buffers means they have been cleared with farthest z-value and background color/gradient/transparent color. An opaque pass may have been performed right after the initialization.

The delegate is used once.

Its delegate is usually set to a vtkCameraPass or to a post-processing pass.

This pass requires a OpenGL context that supports texture objects (TO), framebuffer objects (FBO) and GLSL. If not, it will emit an error message and will render its delegate and return.

Implementation:: The image is first rendered to a full size offscreen render target, then blurred twice on a half sized render target using Gaussian blur with an offset. The offset and the smaller render target increase the size of the outline without incurring the cost of a big Gaussian blur kernel. The implementation of the gaussian blur is similar to vtkGaussianBlurPass with the alterations described above.

See also: vtkRenderPass vtkGaussianBlurPass

Online Examples:

OutlineGlowPass

Tests:: vtkOutlineGlowPass (Tests)

Definition at line 71 of file vtkOutlineGlowPass.h.

Member Typedef Documentation

◆ Superclass

typedef vtkImageProcessingPass vtkOutlineGlowPass::Superclass

Definition at line 75 of file vtkOutlineGlowPass.h.

Constructor & Destructor Documentation

◆ vtkOutlineGlowPass()

vtkOutlineGlowPass::vtkOutlineGlowPass ( )

protected

Default constructor.

DelegatePass is set to NULL.

◆ ~vtkOutlineGlowPass()

vtkOutlineGlowPass::~vtkOutlineGlowPass ( )

overrideprotected

Destructor.

Member Function Documentation

◆ New()

static vtkOutlineGlowPass* vtkOutlineGlowPass::New ( )

static

◆ IsTypeOf()

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

static

◆ IsA()

virtual vtkTypeBool vtkOutlineGlowPass::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 vtkImageProcessingPass.

◆ SafeDownCast()

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

static

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkOutlineGlowPass::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkImageProcessingPass.

◆ NewInstance()

vtkOutlineGlowPass* vtkOutlineGlowPass::NewInstance ( ) const

◆ PrintSelf()

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

overridevirtual

Methods invoked by print to print information about the object including superclasses.

Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkImageProcessingPass.

◆ Render()

void vtkOutlineGlowPass::Render ( const vtkRenderState * s )

overridevirtual

Perform rendering according to a render state s.

Precondition: s_exists: s!=0

Implements vtkRenderPass.

◆ ReleaseGraphicsResources()

void vtkOutlineGlowPass::ReleaseGraphicsResources ( vtkWindow * w )

overridevirtual

Release graphics resources and ask components to release their own resources.

Precondition: w_exists: w!=0

Reimplemented from vtkImageProcessingPass.

◆ GetOutlineIntensity()

virtual float vtkOutlineGlowPass::GetOutlineIntensity ( )

virtual

Get/Set the intensity of the outline.

Default value is 3.0 which gives a bright outline with a fading edge

◆ SetOutlineIntensity()

virtual void vtkOutlineGlowPass::SetOutlineIntensity ( float )

virtual

Member Data Documentation

◆ FrameBufferObject

vtkOpenGLFramebufferObject* vtkOutlineGlowPass::FrameBufferObject

protected

Graphics resources.

Definition at line 112 of file vtkOutlineGlowPass.h.

◆ ScenePass

vtkTextureObject* vtkOutlineGlowPass::ScenePass

protected

Definition at line 113 of file vtkOutlineGlowPass.h.

◆ BlurPass1

vtkTextureObject* vtkOutlineGlowPass::BlurPass1

protected

Definition at line 114 of file vtkOutlineGlowPass.h.

◆ BlurPass2

vtkTextureObject* vtkOutlineGlowPass::BlurPass2

protected

Definition at line 115 of file vtkOutlineGlowPass.h.

◆ BlurProgram

vtkOpenGLHelper* vtkOutlineGlowPass::BlurProgram

protected

Definition at line 118 of file vtkOutlineGlowPass.h.

◆ UpscaleProgram

vtkOpenGLHelper* vtkOutlineGlowPass::UpscaleProgram

protected

Definition at line 119 of file vtkOutlineGlowPass.h.

◆ OutlineIntensity

float vtkOutlineGlowPass::OutlineIntensity = 3.0f

protected

Definition at line 122 of file vtkOutlineGlowPass.h.

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

Rendering/OpenGL2/vtkOutlineGlowPass.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Superclass

Constructor & Destructor Documentation

◆ vtkOutlineGlowPass()

◆ ~vtkOutlineGlowPass()

Member Function Documentation

◆ New()

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ PrintSelf()

◆ Render()

◆ ReleaseGraphicsResources()

◆ GetOutlineIntensity()

◆ SetOutlineIntensity()

Member Data Documentation

◆ FrameBufferObject

◆ ScenePass

◆ BlurPass1

◆ BlurPass2

◆ BlurProgram

◆ UpscaleProgram

◆ OutlineIntensity