VTK  9.4.20241202
Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
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 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.
 
vtkShadowMapBakerPassNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses.
 
void Render (const vtkRenderState *s) override
 Perform rendering according to a render state s.
 
void ReleaseGraphicsResources (vtkWindow *w) override
 Release graphics resources and ask components to release their own resources.
 
bool GetHasShadows ()
 INTERNAL USE ONLY.
 
bool LightCreatesShadow (vtkLight *l)
 INTERNAL USE ONLY.
 
std::vector< vtkSmartPointer< vtkTextureObject > > * GetShadowMaps ()
 INTERNAL USE ONLY Internally used by vtkShadowMapBakerPass and vtkShadowMapPass.
 
std::vector< vtkSmartPointer< vtkCamera > > * GetLightCameras ()
 INTERNAL USE ONLY.
 
bool GetNeedUpdate ()
 INTERNAL USE ONLY.
 
void SetUpToDate ()
 
virtual vtkRenderPassGetOpaqueSequence ()
 Delegate for rendering the camera, lights, and opaque geometry.
 
virtual void SetOpaqueSequence (vtkRenderPass *opaqueSequence)
 Delegate for rendering the camera, lights, and opaque geometry.
 
virtual vtkRenderPassGetCompositeZPass ()
 Delegate for compositing of the shadow maps across processors.
 
virtual void SetCompositeZPass (vtkRenderPass *compositeZPass)
 Delegate for compositing of the shadow maps across processors.
 
virtual void SetResolution (unsigned int)
 Set/Get the number of pixels in each dimension of the shadow maps (shadow maps are square).
 
virtual unsigned int GetResolution ()
 Set/Get the number of pixels in each dimension of the shadow maps (shadow maps are square).
 
virtual void SetExponentialConstant (float)
 Set/Get the exponential constant for the Exponential Shadow Maps.
 
virtual float GetExponentialConstant ()
 Set/Get the exponential constant for the Exponential Shadow Maps.
 
- Public Member Functions inherited from vtkOpenGLRenderPass
virtual vtkTypeBool IsA (const char *type)
 Return 1 if this class is the same type of (or a subclass of) the named class.
 
vtkOpenGLRenderPassNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses.
 
virtual bool SetShaderParameters (vtkShaderProgram *program, vtkAbstractMapper *mapper, vtkProp *prop, vtkOpenGLVertexArrayObject *VAO=nullptr)
 Update the uniforms of the shader program.
 
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.
 
virtual void SetActiveDrawBuffers (unsigned int)
 Number of active draw buffers.
 
virtual unsigned int GetActiveDrawBuffers ()
 
virtual bool PostReplaceShaderValues (std::string &vertexShader, std::string &geometryShader, std::string &fragmentShader, vtkAbstractMapper *mapper, vtkProp *prop)
 Use vtkShaderProgram::Substitute to replace.
 
- Public Member Functions inherited from vtkRenderPass
virtual vtkTypeBool IsA (const char *type)
 Return 1 if this class is the same type of (or a subclass of) the named class.
 
vtkRenderPassNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses.
 
virtual void Render (const vtkRenderState *s)=0
 Perform rendering according to a render state s.
 
virtual void ReleaseGraphicsResources (vtkWindow *w)
 Release graphics resources and ask components to release their own resources.
 
virtual int GetNumberOfRenderedProps ()
 Number of props rendered at the last Render call.
 
- Public Member Functions inherited from vtkObject
 vtkBaseTypeMacro (vtkObject, vtkObjectBase)
 
virtual void DebugOn ()
 Turn debugging output on.
 
virtual void DebugOff ()
 Turn debugging output off.
 
bool GetDebug ()
 Get the value of the debug flag.
 
void SetDebug (bool debugFlag)
 Set the value of the debug flag.
 
virtual void Modified ()
 Update the modification time for this object.
 
virtual vtkMTimeType GetMTime ()
 Return this object's modified time.
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses.
 
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.
 
unsigned long AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
unsigned long AddObserver (const char *event, vtkCommand *, float priority=0.0f)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
vtkCommandGetCommand (unsigned long tag)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
void RemoveObserver (vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
void RemoveObservers (unsigned long event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
void RemoveObservers (const char *event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
vtkTypeBool HasObserver (unsigned long event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
vtkTypeBool HasObserver (const char *event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
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.
 
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.
 
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.
 
vtkTypeBool InvokeEvent (unsigned long event, void *callData)
 This method invokes an event and return whether the event was aborted or not.
 
vtkTypeBool InvokeEvent (const char *event, void *callData)
 This method invokes an event and return whether the event was aborted or not.
 
virtual void SetObjectName (const std::string &objectName)
 Set/get the name of this object for reporting purposes.
 
virtual std::string GetObjectName () const
 Set/get the name of this object for reporting purposes.
 
- Public Member Functions inherited from vtkObjectBase
const char * GetClassName () const
 Return the class name as a string.
 
virtual std::string GetObjectDescription () const
 The object description printed in messages and PrintSelf output.
 
virtual vtkTypeBool IsA (const char *name)
 Return 1 if this class is the same type of (or a subclass of) the named class.
 
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).
 
virtual void Delete ()
 Delete a VTK object.
 
virtual void FastDelete ()
 Delete a reference to this object.
 
void InitializeObjectBase ()
 
void Print (ostream &os)
 Print an object to an ostream.
 
void Register (vtkObjectBase *o)
 Increase the reference count (mark as used by another object).
 
virtual void UnRegister (vtkObjectBase *o)
 Decrease the reference count (release by another object).
 
int GetReferenceCount ()
 Return the current reference count of this object.
 
void SetReferenceCount (int)
 Sets the reference count.
 
bool GetIsInMemkind () const
 A local state flag that remembers whether this object lives in the normal or extended memory space.
 
virtual void PrintHeader (ostream &os, vtkIndent indent)
 Methods invoked by print to print information about the object including superclasses.
 
virtual void PrintTrailer (ostream &os, vtkIndent indent)
 Methods invoked by print to print information about the object including superclasses.
 
virtual bool UsesGarbageCollector () const
 Indicate whether the class uses vtkGarbageCollector or not.
 

Static Public Member Functions

static vtkShadowMapBakerPassNew ()
 
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkShadowMapBakerPassSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkOpenGLRenderPass
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkOpenGLRenderPassSafeDownCast (vtkObjectBase *o)
 
static vtkInformationObjectBaseVectorKeyRenderPasses ()
 Key containing information about the current pass.
 
- Static Public Member Functions inherited from vtkRenderPass
static vtkTypeBool 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.
 
static void BreakOnError ()
 This method is called when vtkErrorMacro executes.
 
static void SetGlobalWarningDisplay (vtkTypeBool val)
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
static void GlobalWarningDisplayOn ()
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
static void GlobalWarningDisplayOff ()
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
static vtkTypeBool GetGlobalWarningDisplay ()
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
- 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.
 
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).
 
static vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
 
static void SetMemkindDirectory (const char *directoryname)
 The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.
 
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.
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkShadowMapBakerPass ()
 Default constructor.
 
 ~vtkShadowMapBakerPass () override
 Destructor.
 
bool PreReplaceShaderValues (std::string &vertexShader, std::string &geometryShader, std::string &fragmentShader, vtkAbstractMapper *mapper, vtkProp *prop) override
 Use vtkShaderProgram::Substitute to replace.
 
bool SetShaderParameters (vtkShaderProgram *program, vtkAbstractMapper *mapper, vtkProp *prop, vtkOpenGLVertexArrayObject *VAO=nullptr) override
 Update the uniforms of the shader program.
 
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.
 
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.
 
void BuildCameraLight (vtkLight *light, double *boundingBox, vtkCamera *lcamera)
 Build a camera from spot light parameters.
 
void CheckSupport (vtkOpenGLRenderWindow *w)
 Check if shadow mapping is supported by the current OpenGL context.
 
- Protected Member Functions inherited from vtkOpenGLRenderPass
virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkOpenGLRenderPass ()
 
 ~vtkOpenGLRenderPass () override
 
void PreRender (const vtkRenderState *s)
 Call before rendering to update the actors' information keys.
 
virtual void PreRenderProp (vtkProp *prop)
 Called in PreRender to give a chance to subclasses to set additonal information keys.
 
void PostRender (const vtkRenderState *s)
 Call after rendering to clean up the actors' information keys.
 
virtual void PostRenderProp (vtkProp *prop)
 Called in PreRender to give a chance to subclasses to clean up information keys.
 
- Protected Member Functions inherited from vtkRenderPass
virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkRenderPass ()
 Default constructor.
 
 ~vtkRenderPass () override
 Destructor.
 
void UpdateCamera (vtkRenderer *renderer)
 Call UpdateCamera() on Renderer.
 
void ClearLights (vtkRenderer *renderer)
 Call ClearLights() on Renderer.
 
void UpdateLightGeometry (vtkRenderer *renderer)
 Call UpdateLightGeometry() on Renderer.
 
void UpdateLights (vtkRenderer *renderer)
 Call UpdateLights() on Renderer.
 
void UpdateGeometry (vtkRenderer *renderer, vtkFrameBufferObjectBase *fbo=nullptr)
 Call UpdateGeometry() on Renderer.
 
void SetLastRenderingUsedDepthPeeling (vtkRenderer *renderer, bool value)
 Modify protected member LastRenderingUsedDepthPeeling on Renderer.
 
- 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.
 
void InternalReleaseFocus ()
 These methods allow a command to exclusively grab all events.
 
- 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 *)
 
virtual void ObjectFinalize ()
 
 vtkObjectBase (const vtkObjectBase &)
 
void operator= (const vtkObjectBase &)
 

Protected Attributes

vtkRenderPassOpaqueSequence
 
vtkRenderPassCompositeZPass
 
unsigned int Resolution
 
float ExponentialConstant { 11.0f }
 
bool HasShadows
 
vtkOpenGLFramebufferObjectFrameBufferObject
 Graphics resources.
 
std::vector< vtkSmartPointer< vtkTextureObject > > * ShadowMaps
 
std::vector< vtkSmartPointer< vtkCamera > > * LightCameras
 
vtkTimeStamp LastRenderTime
 
bool NeedUpdate
 
size_t CurrentLightIndex
 
- 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

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 farthest 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
Online Examples:

Tests:
vtkShadowMapBakerPass (Tests)

Definition at line 78 of file vtkShadowMapBakerPass.h.

Member Typedef Documentation

◆ Superclass

Definition at line 82 of file vtkShadowMapBakerPass.h.

Constructor & Destructor Documentation

◆ vtkShadowMapBakerPass()

vtkShadowMapBakerPass::vtkShadowMapBakerPass ( )
protected

Default constructor.

DelegatetPass is set to NULL.

◆ ~vtkShadowMapBakerPass()

vtkShadowMapBakerPass::~vtkShadowMapBakerPass ( )
overrideprotected

Destructor.

Member Function Documentation

◆ New()

static vtkShadowMapBakerPass * vtkShadowMapBakerPass::New ( )
static

◆ IsTypeOf()

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

◆ IsA()

virtual vtkTypeBool 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 vtkOpenGLRenderPass.

◆ SafeDownCast()

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

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkShadowMapBakerPass::NewInstanceInternal ( ) const
protectedvirtual

Reimplemented from vtkOpenGLRenderPass.

◆ NewInstance()

vtkShadowMapBakerPass * vtkShadowMapBakerPass::NewInstance ( ) const

◆ PrintSelf()

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 vtkOpenGLRenderPass.

◆ Render()

void vtkShadowMapBakerPass::Render ( const vtkRenderState s)
overridevirtual

Perform rendering according to a render state s.

Precondition
s_exists: s!=0

Implements vtkRenderPass.

◆ ReleaseGraphicsResources()

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.

◆ GetOpaqueSequence()

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.

◆ SetOpaqueSequence()

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.

◆ GetCompositeZPass()

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.

◆ SetCompositeZPass()

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.

◆ SetResolution()

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.

◆ GetResolution()

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.

◆ SetExponentialConstant()

virtual void vtkShadowMapBakerPass::SetExponentialConstant ( float  )
virtual

Set/Get the exponential constant for the Exponential Shadow Maps.

The default value differs from the value recommended by the authors of the Exponential Shadow Map paper, VTK uses 11.f instead of 80.f. Empirically this improves rendering preformance with minimal tradeoff in shadow resolution.

The author's recommended value of 80.f represents the maximum practical value for 32-bit floating point precision in the shadow map. Values that are too small will lead to "light leaking" (where shadows get attenuated away from the light source). Larger values will cause shadows near the light to disappear.

◆ GetExponentialConstant()

virtual float vtkShadowMapBakerPass::GetExponentialConstant ( )
virtual

Set/Get the exponential constant for the Exponential Shadow Maps.

The default value differs from the value recommended by the authors of the Exponential Shadow Map paper, VTK uses 11.f instead of 80.f. Empirically this improves rendering preformance with minimal tradeoff in shadow resolution.

The author's recommended value of 80.f represents the maximum practical value for 32-bit floating point precision in the shadow map. Values that are too small will lead to "light leaking" (where shadows get attenuated away from the light source). Larger values will cause shadows near the light to disappear.

◆ GetHasShadows()

bool vtkShadowMapBakerPass::GetHasShadows ( )

INTERNAL USE ONLY.

Internally used by vtkShadowMapBakerPass and vtkShadowMapPass.

Tell if there is at least one shadow. Initial value is false.

◆ LightCreatesShadow()

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

◆ GetShadowMaps()

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

INTERNAL USE ONLY Internally used by vtkShadowMapBakerPass and vtkShadowMapPass.

Give access to the baked shadow maps.

◆ GetLightCameras()

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

INTERNAL USE ONLY.

Internally used by vtkShadowMapBakerPass and vtkShadowMapPass.

Give access the cameras builds from the lights.

◆ GetNeedUpdate()

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.

◆ SetUpToDate()

void vtkShadowMapBakerPass::SetUpToDate ( )

◆ PreReplaceShaderValues()

bool vtkShadowMapBakerPass::PreReplaceShaderValues ( std::string &  vertexShader,
std::string &  geometryShader,
std::string &  fragmentShader,
vtkAbstractMapper mapper,
vtkProp prop 
)
overrideprotectedvirtual

Use vtkShaderProgram::Substitute to replace.

//VTK::XXX:YYY

declarations in the shader sources. Gets called before other mapper shader replacements Return false on error.

Reimplemented from vtkOpenGLRenderPass.

◆ SetShaderParameters()

bool vtkShadowMapBakerPass::SetShaderParameters ( vtkShaderProgram program,
vtkAbstractMapper mapper,
vtkProp prop,
vtkOpenGLVertexArrayObject VAO = nullptr 
)
overrideprotectedvirtual

Update the uniforms of the shader program.

Return false on error.

Reimplemented from vtkOpenGLRenderPass.

◆ PointNearFar()

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

◆ BoxNearFar()

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

◆ BuildCameraLight()

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

◆ CheckSupport()

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

◆ OpaqueSequence

vtkRenderPass* vtkShadowMapBakerPass::OpaqueSequence
protected

Definition at line 248 of file vtkShadowMapBakerPass.h.

◆ CompositeZPass

vtkRenderPass* vtkShadowMapBakerPass::CompositeZPass
protected

Definition at line 250 of file vtkShadowMapBakerPass.h.

◆ Resolution

unsigned int vtkShadowMapBakerPass::Resolution
protected

Definition at line 252 of file vtkShadowMapBakerPass.h.

◆ ExponentialConstant

float vtkShadowMapBakerPass::ExponentialConstant { 11.0f }
protected

Definition at line 253 of file vtkShadowMapBakerPass.h.

◆ HasShadows

bool vtkShadowMapBakerPass::HasShadows
protected

Definition at line 255 of file vtkShadowMapBakerPass.h.

◆ FrameBufferObject

vtkOpenGLFramebufferObject* vtkShadowMapBakerPass::FrameBufferObject
protected

Graphics resources.

Definition at line 260 of file vtkShadowMapBakerPass.h.

◆ ShadowMaps

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

Definition at line 262 of file vtkShadowMapBakerPass.h.

◆ LightCameras

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

Definition at line 263 of file vtkShadowMapBakerPass.h.

◆ LastRenderTime

vtkTimeStamp vtkShadowMapBakerPass::LastRenderTime
protected

Definition at line 265 of file vtkShadowMapBakerPass.h.

◆ NeedUpdate

bool vtkShadowMapBakerPass::NeedUpdate
protected

Definition at line 266 of file vtkShadowMapBakerPass.h.

◆ CurrentLightIndex

size_t vtkShadowMapBakerPass::CurrentLightIndex
protected

Definition at line 267 of file vtkShadowMapBakerPass.h.


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