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vtkShadowMapBakerPass Class Reference

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

#include <vtkShadowMapBakerPass.h>

Inheritance diagram for vtkShadowMapBakerPass:
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Collaboration diagram for vtkShadowMapBakerPass:
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Public Types

typedef vtkRenderPass Superclass
 
typedef vtkRenderPass Superclass
 
- Public Types inherited from vtkRenderPass
typedef vtkObject Superclass
 

Public Member Functions

virtual int IsA (const char *type)
 Return 1 if this class is the same type of (or a subclass of) the named class. More...
 
vtkShadowMapBakerPassNewInstance () 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...
 
bool GetHasShadows ()
 INTERNAL USE ONLY. More...
 
bool LightCreatesShadow (vtkLight *l)
 INTERNAL USE ONLY. More...
 
vtkShadowMapBakerPassTexturesGetShadowMaps ()
 INTERNAL USE ONLY Internally used by vtkShadowMapBakerPass and vtkShadowMapPass. More...
 
vtkShadowMapBakerPassLightCamerasGetLightCameras ()
 INTERNAL USE ONLY. More...
 
bool GetNeedUpdate ()
 INTERNAL USE ONLY. More...
 
void SetUpToDate ()
 
virtual int IsA (const char *type)
 Return 1 if this class is the same type of (or a subclass of) the named class. More...
 
vtkShadowMapBakerPassNewInstance () 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...
 
bool GetHasShadows ()
 INTERNAL USE ONLY. More...
 
bool LightCreatesShadow (vtkLight *l)
 INTERNAL USE ONLY. More...
 
std::vector< vtkSmartPointer< vtkTextureObject > > * GetShadowMaps ()
 INTERNAL USE ONLY Internally used by vtkShadowMapBakerPass and vtkShadowMapPass. More...
 
std::vector< vtkSmartPointer< vtkCamera > > * GetLightCameras ()
 INTERNAL USE ONLY. More...
 
bool GetNeedUpdate ()
 INTERNAL USE ONLY. More...
 
void SetUpToDate ()
 
virtual vtkRenderPassGetOpaquePass ()
 Delegate for rendering the opaque polygonal geometry. More...
 
virtual void SetOpaquePass (vtkRenderPass *opaquePass)
 Delegate for rendering the opaque polygonal geometry. More...
 
virtual vtkRenderPassGetCompositeZPass ()
 Delegate for compositing of the shadow maps across processors. More...
 
virtual void SetCompositeZPass (vtkRenderPass *compositeZPass)
 Delegate for compositing of the shadow maps across processors. More...
 
virtual void SetResolution (unsigned int)
 Set/Get the number of pixels in each dimension of the shadow maps (shadow maps are square). More...
 
virtual unsigned int GetResolution ()
 Set/Get the number of pixels in each dimension of the shadow maps (shadow maps are square). More...
 
virtual void SetPolygonOffsetFactor (float)
 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). More...
 
virtual float GetPolygonOffsetFactor ()
 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). More...
 
virtual void SetPolygonOffsetUnits (float)
 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). More...
 
virtual float GetPolygonOffsetUnits ()
 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). More...
 
virtual vtkRenderPassGetOpaqueSequence ()
 Delegate for rendering the camera, lights, and opaque geometry. More...
 
virtual void SetOpaqueSequence (vtkRenderPass *opaqueSequence)
 Delegate for rendering the camera, lights, and opaque geometry. More...
 
virtual vtkRenderPassGetCompositeZPass ()
 Delegate for compositing of the shadow maps across processors. More...
 
virtual void SetCompositeZPass (vtkRenderPass *compositeZPass)
 Delegate for compositing of the shadow maps across processors. More...
 
virtual void SetResolution (unsigned int)
 Set/Get the number of pixels in each dimension of the shadow maps (shadow maps are square). More...
 
virtual unsigned int GetResolution ()
 Set/Get the number of pixels in each dimension of the shadow maps (shadow maps are square). More...
 
- Public Member Functions inherited from vtkRenderPass
vtkRenderPassNewInstance () 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 ()
 
int HasObserver (unsigned long event)
 
int 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...
 
vtkCommandGetCommand (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...
 
int HasObserver (unsigned long event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
int 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 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...
 
void PrintRevisions (ostream &)
 Legacy. 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 vtkShadowMapBakerPassNew ()
 
static int IsTypeOf (const char *type)
 
static vtkShadowMapBakerPassSafeDownCast (vtkObjectBase *o)
 
static vtkInformationIntegerKeyOCCLUDER ()
 If this key exists on the PropertyKeys of a prop, the prop is viewed as a light occluder (ie it casts shadows). More...
 
static vtkInformationIntegerKeyRECEIVER ()
 
static vtkShadowMapBakerPassNew ()
 
static int IsTypeOf (const char *type)
 
static vtkShadowMapBakerPassSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkRenderPass
static int IsTypeOf (const char *type)
 
static vtkRenderPassSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkObject
static vtkObjectNew ()
 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 vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkShadowMapBakerPass ()
 Default constructor. More...
 
 ~vtkShadowMapBakerPass () override
 Destructor. More...
 
void PointNearFar (double *v, double *pt, double *dir, double &mNear, double &mFar, bool initialized)
 Helper method to compute the mNearest point in a given direction. More...
 
void BoxNearFar (double *bb, double *pt, double *dir, double &mNear, double &mFar)
 Compute the min/max of the projection of a box in a given direction. More...
 
void BuildCameraLight (vtkLight *light, double *boundingBox, vtkCamera *lcamera)
 Build a camera from spot light parameters. More...
 
void CheckSupport (vtkOpenGLRenderWindow *w)
 Check if shadow mapping is supported by the current OpenGL context. More...
 
virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkShadowMapBakerPass ()
 Default constructor. More...
 
 ~vtkShadowMapBakerPass () override
 Destructor. More...
 
void PointNearFar (double *v, double *pt, double *dir, double &mNear, double &mFar, bool initialized)
 Helper method to compute the mNearest point in a given direction. More...
 
void BoxNearFar (double *bb, double *pt, double *dir, double &mNear, double &mFar)
 Compute the min/max of the projection of a box in a given direction. More...
 
void BuildCameraLight (vtkLight *light, double *boundingBox, vtkCamera *lcamera)
 Build a camera from spot light parameters. More...
 
void CheckSupport (vtkOpenGLRenderWindow *w)
 Check if shadow mapping is supported by the current OpenGL context. 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)
 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=NULL)
 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 CollectRevisions (ostream &)
 
virtual void ReportReferences (vtkGarbageCollector *)
 
 vtkObjectBase (const vtkObjectBase &)
 
void operator= (const vtkObjectBase &)
 

Protected Attributes

vtkRenderPassOpaquePass
 
vtkRenderPassCompositeZPass
 
unsigned int Resolution
 
float PolygonOffsetFactor
 
float PolygonOffsetUnits
 
bool HasShadows
 
vtkFrameBufferObjectFrameBufferObject
 Graphics resources. More...
 
vtkShadowMapBakerPassTexturesShadowMaps
 
vtkShadowMapBakerPassLightCamerasLightCameras
 
vtkTimeStamp LastRenderTime
 
bool NeedUpdate
 
vtkRenderPassOpaqueSequence
 
vtkOpenGLFramebufferObjectFrameBufferObject
 Graphics resources. More...
 
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 60 of file vtkShadowMapBakerPass.h.

Member Typedef Documentation

Definition at line 64 of file vtkShadowMapBakerPass.h.

Definition at line 60 of file vtkShadowMapBakerPass.h.

Constructor & Destructor Documentation

vtkShadowMapBakerPass::vtkShadowMapBakerPass ( )
protected

Default constructor.

DelegatetPass is set to NULL.

vtkShadowMapBakerPass::~vtkShadowMapBakerPass ( )
overrideprotected

Destructor.

vtkShadowMapBakerPass::vtkShadowMapBakerPass ( )
protected

Default constructor.

DelegatetPass is set to NULL.

vtkShadowMapBakerPass::~vtkShadowMapBakerPass ( )
overrideprotected

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 
)
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 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
void vtkShadowMapBakerPass::Render ( const vtkRenderState s)
overridevirtual

Perform rendering according to a render state s.

Precondition
s_exists: s!=0

Implements vtkRenderPass.

void vtkShadowMapBakerPass::ReleaseGraphicsResources ( vtkWindow w)
overridevirtual

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 
)
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 vtkRenderPass.

void vtkShadowMapBakerPass::Render ( const vtkRenderState s)
overridevirtual

Perform rendering according to a render state s.

Precondition
s_exists: s!=0

Implements vtkRenderPass.

void vtkShadowMapBakerPass::ReleaseGraphicsResources ( vtkWindow w)
overridevirtual

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 262 of file vtkShadowMapBakerPass.h.

vtkRenderPass * vtkShadowMapBakerPass::CompositeZPass
protected

Definition at line 264 of file vtkShadowMapBakerPass.h.

unsigned int vtkShadowMapBakerPass::Resolution
protected

Definition at line 266 of file vtkShadowMapBakerPass.h.

float vtkShadowMapBakerPass::PolygonOffsetFactor
protected

Definition at line 268 of file vtkShadowMapBakerPass.h.

float vtkShadowMapBakerPass::PolygonOffsetUnits
protected

Definition at line 269 of file vtkShadowMapBakerPass.h.

bool vtkShadowMapBakerPass::HasShadows
protected

Definition at line 271 of file vtkShadowMapBakerPass.h.

vtkFrameBufferObject* vtkShadowMapBakerPass::FrameBufferObject
protected

Graphics resources.

Definition at line 276 of file vtkShadowMapBakerPass.h.

vtkShadowMapBakerPassTextures* vtkShadowMapBakerPass::ShadowMaps
protected

Definition at line 278 of file vtkShadowMapBakerPass.h.

vtkShadowMapBakerPassLightCameras* vtkShadowMapBakerPass::LightCameras
protected

Definition at line 279 of file vtkShadowMapBakerPass.h.

vtkTimeStamp vtkShadowMapBakerPass::LastRenderTime
protected

Definition at line 282 of file vtkShadowMapBakerPass.h.

bool vtkShadowMapBakerPass::NeedUpdate
protected

Definition at line 283 of file vtkShadowMapBakerPass.h.

vtkRenderPass* vtkShadowMapBakerPass::OpaqueSequence
protected

Definition at line 213 of file vtkShadowMapBakerPass.h.

vtkOpenGLFramebufferObject* vtkShadowMapBakerPass::FrameBufferObject
protected

Graphics resources.

Definition at line 224 of file vtkShadowMapBakerPass.h.

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

Definition at line 226 of file vtkShadowMapBakerPass.h.

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

Definition at line 227 of file vtkShadowMapBakerPass.h.


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