Implement a builder of shadow map pass. More...

#include <vtkShadowMapBakerPass.h>

Inheritance diagram for vtkShadowMapBakerPass:

Collaboration diagram for vtkShadowMapBakerPass:

Public Types
typedef vtkRenderPass	Superclass

typedef vtkRenderPass	Superclass

Public Types inherited from vtkRenderPass
typedef vtkObject	Superclass

typedef vtkObject	Superclass

Public Types inherited from vtkObject
typedef vtkObjectBase	Superclass

Public Member Functions
virtual int	IsA (const char *type)

vtkShadowMapBakerPass *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

void	ReleaseGraphicsResources (vtkWindow *w)

bool	GetHasShadows ()

bool	LightCreatesShadow (vtkLight *l)

vtkShadowMapBakerPassTextures *	GetShadowMaps ()

bool	GetNeedUpdate ()

void	SetUpToDate ()

virtual int	IsA (const char *type)

vtkShadowMapBakerPass *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

void	ReleaseGraphicsResources (vtkWindow *w)

bool	GetHasShadows ()

bool	LightCreatesShadow (vtkLight *l)

std::vector< vtkSmartPointer< vtkTextureObject > > *	GetShadowMaps ()

bool	GetNeedUpdate ()

void	SetUpToDate ()


virtual void	Render (const vtkRenderState *s)


virtual vtkRenderPass *	GetOpaquePass ()

virtual void	SetOpaquePass (vtkRenderPass *opaquePass)


virtual vtkRenderPass *	GetCompositeZPass ()

virtual void	SetCompositeZPass (vtkRenderPass *compositeZPass)


virtual void	SetResolution (unsigned int)

virtual unsigned int	GetResolution ()


virtual void	SetPolygonOffsetFactor (float)

virtual float	GetPolygonOffsetFactor ()


virtual void	SetPolygonOffsetUnits (float)

virtual float	GetPolygonOffsetUnits ()


vtkShadowMapBakerPassLightCameras *	GetLightCameras ()


virtual void	Render (const vtkRenderState *s)


virtual vtkRenderPass *	GetOpaqueSequence ()

virtual void	SetOpaqueSequence (vtkRenderPass *opaqueSequence)


virtual vtkRenderPass *	GetCompositeZPass ()

virtual void	SetCompositeZPass (vtkRenderPass *compositeZPass)


virtual void	SetResolution (unsigned int)

virtual unsigned int	GetResolution ()


std::vector< vtkSmartPointer< vtkCamera > > *	GetLightCameras ()

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

vtkRenderPass *	NewInstance () const

virtual int	GetNumberOfRenderedProps ()

virtual int	GetNumberOfRenderedProps ()

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

virtual void	DebugOn ()

virtual void	DebugOff ()

bool	GetDebug ()

void	SetDebug (bool debugFlag)

virtual void	Modified ()

virtual unsigned long	GetMTime ()

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)

vtkCommand *	GetCommand (unsigned long tag)

void	RemoveObserver (vtkCommand *)

void	RemoveObservers (unsigned long event, vtkCommand *)

void	RemoveObservers (const char event, vtkCommand )

int	HasObserver (unsigned long event, vtkCommand *)

int	HasObserver (const char event, vtkCommand )

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

int	HasObserver (unsigned long event)

int	HasObserver (const char *event)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)

int	InvokeEvent (unsigned long event, void *callData)

int	InvokeEvent (const char event, void callData)

int	InvokeEvent (unsigned long event)

int	InvokeEvent (const char *event)

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const

virtual void	Delete ()

virtual void	FastDelete ()

void	Print (ostream &os)

virtual void	Register (vtkObjectBase *o)

virtual void	UnRegister (vtkObjectBase *o)

void	SetReferenceCount (int)

void	PrintRevisions (ostream &)

virtual void	PrintHeader (ostream &os, vtkIndent indent)

virtual void	PrintTrailer (ostream &os, vtkIndent indent)

int	GetReferenceCount ()

Static Public Member Functions
static vtkShadowMapBakerPass *	New ()

static int	IsTypeOf (const char *type)

static vtkShadowMapBakerPass *	SafeDownCast (vtkObjectBase *o)

static vtkInformationIntegerKey *	OCCLUDER ()

static vtkInformationIntegerKey *	RECEIVER ()

static vtkShadowMapBakerPass *	New ()

static int	IsTypeOf (const char *type)

static vtkShadowMapBakerPass *	SafeDownCast (vtkObjectBase *o)

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

static vtkRenderPass *	SafeDownCast (vtkObjectBase *o)

static int	IsTypeOf (const char *type)

static vtkRenderPass *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkObject
static int	IsTypeOf (const char *type)

static vtkObject *	SafeDownCast (vtkObjectBase *o)

static vtkObject *	New ()

static void	BreakOnError ()

static void	SetGlobalWarningDisplay (int val)

static void	GlobalWarningDisplayOn ()

static void	GlobalWarningDisplayOff ()

static int	GetGlobalWarningDisplay ()

Static Public Member Functions inherited from vtkObjectBase
static int	IsTypeOf (const char *name)

static vtkObjectBase *	New ()

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkShadowMapBakerPass ()

virtual	~vtkShadowMapBakerPass ()

void	CheckSupport (vtkOpenGLRenderWindow *w)

virtual vtkObjectBase *	NewInstanceInternal () const

	vtkShadowMapBakerPass ()

virtual	~vtkShadowMapBakerPass ()

void	CheckSupport (vtkOpenGLRenderWindow *w)


void	PointNearFar (double v, double pt, double *dir, double &mNear, double &mFar, bool initialized)


void	BoxNearFar (double bb, double pt, double *dir, double &mNear, double &mFar)


void	BuildCameraLight (vtkLight light, double boundingBox, vtkCamera *lcamera)


void	PointNearFar (double v, double pt, double *dir, double &mNear, double &mFar, bool initialized)


void	BoxNearFar (double bb, double pt, double *dir, double &mNear, double &mFar)


void	BuildCameraLight (vtkLight light, double boundingBox, vtkCamera *lcamera)

Protected Member Functions inherited from vtkRenderPass
	vtkRenderPass ()

virtual	~vtkRenderPass ()

void	UpdateCamera (vtkRenderer *renderer)

void	ClearLights (vtkRenderer *renderer)

void	UpdateLightGeometry (vtkRenderer *renderer)

void	UpdateLights (vtkRenderer *renderer)

void	UpdateGeometry (vtkRenderer *renderer)

	vtkRenderPass ()

virtual	~vtkRenderPass ()

void	UpdateCamera (vtkRenderer *renderer)

void	ClearLights (vtkRenderer *renderer)

void	UpdateLightGeometry (vtkRenderer *renderer)

void	UpdateLights (vtkRenderer *renderer)

void	UpdateGeometry (vtkRenderer *renderer)

void	SetLastRenderingUsedDepthPeeling (vtkRenderer *renderer, bool value)

Protected Member Functions inherited from vtkObject
	vtkObject ()

virtual	~vtkObject ()

virtual void	RegisterInternal (vtkObjectBase *, int check)

virtual void	UnRegisterInternal (vtkObjectBase *, int check)

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=NULL)

void	InternalReleaseFocus ()

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	CollectRevisions (ostream &)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
vtkRenderPass *	OpaquePass

vtkRenderPass *	CompositeZPass

unsigned int	Resolution

float	PolygonOffsetFactor

float	PolygonOffsetUnits

bool	HasShadows

vtkFrameBufferObject *	FrameBufferObject

vtkShadowMapBakerPassTextures *	ShadowMaps

vtkShadowMapBakerPassLightCameras *	LightCameras

vtkTimeStamp	LastRenderTime

bool	NeedUpdate

vtkRenderPass *	OpaqueSequence

std::vector< vtkSmartPointer< vtkTextureObject > > *	ShadowMaps

std::vector< vtkSmartPointer< vtkCamera > > *	LightCameras

Protected Attributes inherited from vtkRenderPass
int	NumberOfRenderedProps

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Detailed Description

Implement a builder of shadow map pass.

Bake a list of shadow maps, once per spot light. It work in conjunction with the vtkShadowMapPass, which uses the shadow maps for rendering the opaque geometry (a technique to render hard shadows in hardware).

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

Its delegate is usually set to a vtkOpaquePass.

Implementation:: The first pass of the algorithm is to generate a shadow map per light (depth map from the light point of view) by rendering the opaque objects with the vtkShadowMapBakerPass::OCCLUDER property keys. The second pass is to render the opaque objects with the vtkShadowMap::RECEIVER keys.

See also: vtkRenderPass, vtkOpaquePass, vtkShadowMapPass

Tests:: vtkShadowMapBakerPass (Tests)

Bake a list of shadow maps, once per spot light. It work in conjunction with the vtkShadowMapPass, which uses the shadow maps for rendering the opaque geometry (a technique to render hard shadows in hardware).

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

Its delegate is usually set to a vtkOpaquePass.

Implementation:: The first pass of the algorithm is to generate a shadow map per light (depth map from the light point of view) by rendering the opaque objects

See also: vtkRenderPass, vtkOpaquePass, vtkShadowMapPass

Definition at line 59 of file vtkShadowMapBakerPass.h.

Member Typedef Documentation

typedef vtkRenderPass vtkShadowMapBakerPass::Superclass

Definition at line 63 of file vtkShadowMapBakerPass.h.

typedef vtkRenderPass vtkShadowMapBakerPass::Superclass

Definition at line 59 of file vtkShadowMapBakerPass.h.

Constructor & Destructor Documentation

vtkShadowMapBakerPass::vtkShadowMapBakerPass ( )

protected

Default constructor. DelegatetPass is set to NULL.

virtual vtkShadowMapBakerPass::~vtkShadowMapBakerPass ( )

protectedvirtual

Destructor.

vtkShadowMapBakerPass::vtkShadowMapBakerPass ( )

protected

Default constructor. DelegatetPass is set to NULL.

virtual vtkShadowMapBakerPass::~vtkShadowMapBakerPass ( )

protectedvirtual

Destructor.

Member Function Documentation

static vtkShadowMapBakerPass* vtkShadowMapBakerPass::New ( )

static

static int vtkShadowMapBakerPass::IsTypeOf ( const char * type )

static

virtual int vtkShadowMapBakerPass::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 vtkRenderPass.

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

static

virtual vtkObjectBase* vtkShadowMapBakerPass::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkRenderPass.

vtkShadowMapBakerPass* vtkShadowMapBakerPass::NewInstance ( ) const

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

virtual

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 vtkRenderPass.

static vtkInformationIntegerKey* vtkShadowMapBakerPass::OCCLUDER ( )

static

If this key exists on the PropertyKeys of a prop, the prop is viewed as a light occluder (ie it casts shadows). This key is not mutually exclusive with the RECEIVER() key.

static vtkInformationIntegerKey* vtkShadowMapBakerPass::RECEIVER ( )

static

virtual void vtkShadowMapBakerPass::Render ( const vtkRenderState * s )

virtual

Perform rendering according to a render state s.

Precondition: s_exists: s!=0

Implements vtkRenderPass.

void vtkShadowMapBakerPass::ReleaseGraphicsResources ( vtkWindow * w )

virtual

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

Precondition: w_exists: w!=0

Reimplemented from vtkRenderPass.

virtual vtkRenderPass* vtkShadowMapBakerPass::GetOpaquePass ( )

virtual

Delegate for rendering the opaque polygonal geometry. If it is NULL, nothing will be rendered and a warning will be emitted. It is usually set to a vtkCameraPass with a sequence of vtkLightPass/vtkOpaquePass. Initial value is a NULL pointer.

virtual void vtkShadowMapBakerPass::SetOpaquePass ( vtkRenderPass * opaquePass )

virtual

Delegate for rendering the opaque polygonal geometry. If it is NULL, nothing will be rendered and a warning will be emitted. It is usually set to a vtkCameraPass with a sequence of vtkLightPass/vtkOpaquePass. Initial value is a NULL pointer.

virtual vtkRenderPass* vtkShadowMapBakerPass::GetCompositeZPass ( )

virtual

Delegate for compositing of the shadow maps across processors. If it is NULL, there is no z compositing. It is usually set to a vtkCompositeZPass (Parallel package). Initial value is a NULL pointer.

virtual void vtkShadowMapBakerPass::SetCompositeZPass ( vtkRenderPass * compositeZPass )

virtual

Delegate for compositing of the shadow maps across processors. If it is NULL, there is no z compositing. It is usually set to a vtkCompositeZPass (Parallel package). Initial value is a NULL pointer.

virtual void vtkShadowMapBakerPass::SetResolution ( unsigned int )

virtual

Set/Get the number of pixels in each dimension of the shadow maps (shadow maps are square). Initial value is 256. The greater the better. Resolution does not have to be a power-of-two value.

virtual unsigned int vtkShadowMapBakerPass::GetResolution ( )

virtual

Set/Get the number of pixels in each dimension of the shadow maps (shadow maps are square). Initial value is 256. The greater the better. Resolution does not have to be a power-of-two value.

virtual void vtkShadowMapBakerPass::SetPolygonOffsetFactor ( float )

virtual

Factor used to scale the maximum depth slope of a polygon (definition from OpenGL 2.1 spec section 3.5.5 "Depth Offset" page 112). This is used during the creation the shadow maps (not during mapping of the shadow maps onto the geometry) Play with this value and PolygonOffsetUnits to solve self-shadowing. Valid values can be either positive or negative. Initial value is 1.1f (recommended by the nVidia presentation about Shadow Mapping by Cass Everitt). 3.1f works well with the regression test.

virtual float vtkShadowMapBakerPass::GetPolygonOffsetFactor ( )

virtual

Factor used to scale the maximum depth slope of a polygon (definition from OpenGL 2.1 spec section 3.5.5 "Depth Offset" page 112). This is used during the creation the shadow maps (not during mapping of the shadow maps onto the geometry) Play with this value and PolygonOffsetUnits to solve self-shadowing. Valid values can be either positive or negative. Initial value is 1.1f (recommended by the nVidia presentation about Shadow Mapping by Cass Everitt). 3.1f works well with the regression test.

virtual void vtkShadowMapBakerPass::SetPolygonOffsetUnits ( float )

virtual

Factor used to scale an implementation dependent constant that relates to the usable resolution of the depth buffer (definition from OpenGL 2.1 spec section 3.5.5 "Depth Offset" page 112). This is used during the creation the shadow maps (not during mapping of the shadow maps onto the geometry) Play with this value and PolygonOffsetFactor to solve self-shadowing. Valid values can be either positive or negative. Initial value is 4.0f (recommended by the nVidia presentation about Shadow Mapping by Cass Everitt). 10.0f works well with the regression test.

virtual float vtkShadowMapBakerPass::GetPolygonOffsetUnits ( )

virtual

Factor used to scale an implementation dependent constant that relates to the usable resolution of the depth buffer (definition from OpenGL 2.1 spec section 3.5.5 "Depth Offset" page 112). This is used during the creation the shadow maps (not during mapping of the shadow maps onto the geometry) Play with this value and PolygonOffsetFactor to solve self-shadowing. Valid values can be either positive or negative. Initial value is 4.0f (recommended by the nVidia presentation about Shadow Mapping by Cass Everitt). 10.0f works well with the regression test.

bool vtkShadowMapBakerPass::GetHasShadows ( )

INTERNAL USE ONLY. Internally used by vtkShadowMapBakerPass and vtkShadowMapPass. Tell if there is at least one shadow. Initial value is false.

bool vtkShadowMapBakerPass::LightCreatesShadow ( vtkLight * l )

INTERNAL USE ONLY. Internally used by vtkShadowMapBakerPass and vtkShadowMapPass. Tell if the light `l' can create shadows. The light has to not be a head light and to be directional or positional with an angle less than 180 degrees.

Precondition: l_exists: l!=0

vtkShadowMapBakerPassTextures* vtkShadowMapBakerPass::GetShadowMaps ( )

INTERNAL USE ONLY Internally used by vtkShadowMapBakerPass and vtkShadowMapPass. Give access to the baked shadow maps.

vtkShadowMapBakerPassLightCameras* vtkShadowMapBakerPass::GetLightCameras ( )

INTERNAL USE ONLY. Internally used by vtkShadowMapBakerPass and vtkShadowMapPass. Give access the cameras builds from the ligths.

bool vtkShadowMapBakerPass::GetNeedUpdate ( )

INTERNAL USE ONLY. Internally used by vtkShadowMapBakerPass and vtkShadowMapPass. Do the shadows need to be updated? Value changed by vtkShadowMapBakerPass and used by vtkShadowMapPass. Initial value is true.

void vtkShadowMapBakerPass::SetUpToDate ( )

void vtkShadowMapBakerPass::PointNearFar	(	double *	v,
		double *	pt,
		double *	dir,
		double &	mNear,
		double &	mFar,
		bool	initialized
	)

protected

Helper method to compute the mNearest point in a given direction. To be called several times, with initialized = false the first time. v: point pt: origin of the direction dir: direction

void vtkShadowMapBakerPass::BoxNearFar	(	double *	bb,
		double *	pt,
		double *	dir,
		double &	mNear,
		double &	mFar
	)

protected

Compute the min/max of the projection of a box in a given direction. bb: bounding box pt: origin of the direction dir: direction

void vtkShadowMapBakerPass::BuildCameraLight	(	vtkLight *	light,
		double *	boundingBox,
		vtkCamera *	lcamera
	)

protected

Build a camera from spot light parameters.

Precondition: light_exists: light!=0; lcamera_exists: lcamera!=0

void vtkShadowMapBakerPass::CheckSupport ( vtkOpenGLRenderWindow * w )

protected

Check if shadow mapping is supported by the current OpenGL context.

Precondition: w_exists: w!=0

static vtkShadowMapBakerPass* vtkShadowMapBakerPass::New ( )

static

static int vtkShadowMapBakerPass::IsTypeOf ( const char * type )

static

virtual int vtkShadowMapBakerPass::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 vtkRenderPass.

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

static

virtual vtkObjectBase* vtkShadowMapBakerPass::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkRenderPass.

vtkShadowMapBakerPass* vtkShadowMapBakerPass::NewInstance ( ) const

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

virtual

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 vtkRenderPass.

virtual void vtkShadowMapBakerPass::Render ( const vtkRenderState * s )

virtual

Perform rendering according to a render state s.

Precondition: s_exists: s!=0

Implements vtkRenderPass.

void vtkShadowMapBakerPass::ReleaseGraphicsResources ( vtkWindow * w )

virtual

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

Precondition: w_exists: w!=0

Reimplemented from vtkRenderPass.

virtual vtkRenderPass* vtkShadowMapBakerPass::GetOpaqueSequence ( )

virtual

Delegate for rendering the camera, lights, and opaque geometry. If it is NULL, nothing will be rendered and a warning will be emitted. It defaults to a vtkCameraPass with a sequence of vtkLightPass/vtkOpaquePass.

virtual void vtkShadowMapBakerPass::SetOpaqueSequence ( vtkRenderPass * opaqueSequence )

virtual

Delegate for rendering the camera, lights, and opaque geometry. If it is NULL, nothing will be rendered and a warning will be emitted. It defaults to a vtkCameraPass with a sequence of vtkLightPass/vtkOpaquePass.

virtual vtkRenderPass* vtkShadowMapBakerPass::GetCompositeZPass ( )

virtual

Delegate for compositing of the shadow maps across processors. If it is NULL, there is no z compositing. It is usually set to a vtkCompositeZPass (Parallel package). Initial value is a NULL pointer.

virtual void vtkShadowMapBakerPass::SetCompositeZPass ( vtkRenderPass * compositeZPass )

virtual

Delegate for compositing of the shadow maps across processors. If it is NULL, there is no z compositing. It is usually set to a vtkCompositeZPass (Parallel package). Initial value is a NULL pointer.

virtual void vtkShadowMapBakerPass::SetResolution ( unsigned int )

virtual

Set/Get the number of pixels in each dimension of the shadow maps (shadow maps are square). Initial value is 256. The greater the better. Resolution does not have to be a power-of-two value.

virtual unsigned int vtkShadowMapBakerPass::GetResolution ( )

virtual

Set/Get the number of pixels in each dimension of the shadow maps (shadow maps are square). Initial value is 256. The greater the better. Resolution does not have to be a power-of-two value.

bool vtkShadowMapBakerPass::GetHasShadows ( )

INTERNAL USE ONLY. Internally used by vtkShadowMapBakerPass and vtkShadowMapPass. Tell if there is at least one shadow. Initial value is false.

bool vtkShadowMapBakerPass::LightCreatesShadow ( vtkLight * l )

INTERNAL USE ONLY. Internally used by vtkShadowMapBakerPass and vtkShadowMapPass. Tell if the light `l' can create shadows. The light has to not be a head light and to be directional or positional with an angle less than 180 degrees.

Precondition: l_exists: l!=0

std::vector<vtkSmartPointer<vtkTextureObject> >* vtkShadowMapBakerPass::GetShadowMaps ( )

INTERNAL USE ONLY Internally used by vtkShadowMapBakerPass and vtkShadowMapPass. Give access to the baked shadow maps.

std::vector<vtkSmartPointer<vtkCamera> >* vtkShadowMapBakerPass::GetLightCameras ( )

INTERNAL USE ONLY. Internally used by vtkShadowMapBakerPass and vtkShadowMapPass. Give access the cameras builds from the ligths.

bool vtkShadowMapBakerPass::GetNeedUpdate ( )

INTERNAL USE ONLY. Internally used by vtkShadowMapBakerPass and vtkShadowMapPass. Do the shadows need to be updated? Value changed by vtkShadowMapBakerPass and used by vtkShadowMapPass. Initial value is true.

void vtkShadowMapBakerPass::SetUpToDate ( )

void vtkShadowMapBakerPass::PointNearFar	(	double *	v,
		double *	pt,
		double *	dir,
		double &	mNear,
		double &	mFar,
		bool	initialized
	)

protected

Helper method to compute the mNearest point in a given direction. To be called several times, with initialized = false the first time. v: point pt: origin of the direction dir: direction

void vtkShadowMapBakerPass::BoxNearFar	(	double *	bb,
		double *	pt,
		double *	dir,
		double &	mNear,
		double &	mFar
	)

protected

Compute the min/max of the projection of a box in a given direction. bb: bounding box pt: origin of the direction dir: direction

void vtkShadowMapBakerPass::BuildCameraLight	(	vtkLight *	light,
		double *	boundingBox,
		vtkCamera *	lcamera
	)

protected

Build a camera from spot light parameters.

Precondition: light_exists: light!=0; lcamera_exists: lcamera!=0

void vtkShadowMapBakerPass::CheckSupport ( vtkOpenGLRenderWindow * w )

protected

Check if shadow mapping is supported by the current OpenGL context.

Precondition: w_exists: w!=0

Member Data Documentation

vtkRenderPass* vtkShadowMapBakerPass::OpaquePass

protected

Definition at line 220 of file vtkShadowMapBakerPass.h.

vtkRenderPass * vtkShadowMapBakerPass::CompositeZPass

protected

Definition at line 222 of file vtkShadowMapBakerPass.h.

unsigned int vtkShadowMapBakerPass::Resolution

protected

Definition at line 224 of file vtkShadowMapBakerPass.h.

float vtkShadowMapBakerPass::PolygonOffsetFactor

protected

Definition at line 226 of file vtkShadowMapBakerPass.h.

float vtkShadowMapBakerPass::PolygonOffsetUnits

protected

Definition at line 227 of file vtkShadowMapBakerPass.h.

bool vtkShadowMapBakerPass::HasShadows

protected

Definition at line 229 of file vtkShadowMapBakerPass.h.

vtkFrameBufferObject * vtkShadowMapBakerPass::FrameBufferObject

protected

Graphics resources.

Definition at line 232 of file vtkShadowMapBakerPass.h.

vtkShadowMapBakerPassTextures* vtkShadowMapBakerPass::ShadowMaps

protected

Definition at line 234 of file vtkShadowMapBakerPass.h.

vtkShadowMapBakerPassLightCameras* vtkShadowMapBakerPass::LightCameras

protected

Definition at line 235 of file vtkShadowMapBakerPass.h.

vtkTimeStamp vtkShadowMapBakerPass::LastRenderTime

protected

Definition at line 238 of file vtkShadowMapBakerPass.h.

bool vtkShadowMapBakerPass::NeedUpdate

protected

Definition at line 239 of file vtkShadowMapBakerPass.h.

vtkRenderPass* vtkShadowMapBakerPass::OpaqueSequence

protected

Definition at line 179 of file vtkShadowMapBakerPass.h.

std::vector<vtkSmartPointer<vtkTextureObject> >* vtkShadowMapBakerPass::ShadowMaps

protected

Definition at line 190 of file vtkShadowMapBakerPass.h.

std::vector<vtkSmartPointer<vtkCamera> >* vtkShadowMapBakerPass::LightCameras

protected

Definition at line 191 of file vtkShadowMapBakerPass.h.

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

dox/Rendering/OpenGL/vtkShadowMapBakerPass.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation