VTK
Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes
vtkShadowMapPass Class Reference

Implement a shadow mapping render pass. More...

#include <vtkShadowMapPass.h>

Inheritance diagram for vtkShadowMapPass:
[legend]
Collaboration diagram for vtkShadowMapPass:
[legend]

List of all members.

Public Types

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

Public Member Functions

virtual const char * GetClassName ()
virtual int IsA (const char *type)
void PrintSelf (ostream &os, vtkIndent indent)
void ReleaseGraphicsResources (vtkWindow *w)
virtual void Render (const vtkRenderState *s)
virtual vtkShadowMapBakerPassGetShadowMapBakerPass ()
virtual void SetShadowMapBakerPass (vtkShadowMapBakerPass *shadowMapBakerPass)
virtual vtkRenderPassGetOpaquePass ()
virtual void SetOpaquePass (vtkRenderPass *opaquePass)
- Public Member Functions inherited from vtkRenderPass
virtual int GetNumberOfRenderedProps ()
- Public Member Functions inherited from vtkObject
virtual void DebugOn ()
virtual void DebugOff ()
unsigned char GetDebug ()
void SetDebug (unsigned char 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)
vtkCommandGetCommand (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)
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 &os)
virtual void PrintHeader (ostream &os, vtkIndent indent)
virtual void PrintTrailer (ostream &os, vtkIndent indent)
int GetReferenceCount ()

Static Public Member Functions

static vtkShadowMapPassNew ()
static int IsTypeOf (const char *type)
static vtkShadowMapPassSafeDownCast (vtkObject *o)

Protected Member Functions

 vtkShadowMapPass ()
virtual ~vtkShadowMapPass ()
void BuildSpotLightIntensityMap ()
void CheckSupport (vtkOpenGLRenderWindow *w)
- 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)
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 &os)
virtual void ReportReferences (vtkGarbageCollector *)
 vtkObjectBase (const vtkObjectBase &)
void operator= (const vtkObjectBase &)

Protected Attributes

vtkShadowMapBakerPassShadowMapBakerPass
vtkRenderPassCompositeRGBAPass
vtkRenderPassOpaquePass
vtkFrameBufferObjectFrameBufferObject
vtkShadowMapPassTextures * ShadowMaps
vtkShadowMapPassLightCameras * LightCameras
vtkShaderProgram2Program
vtkTextureObjectIntensityMap
vtkSampleFunctionIntensitySource
vtkImageExportIntensityExporter
vtkImplicitHaloHalo
vtkTimeStamp LastRenderTime
- Protected Attributes inherited from vtkRenderPass
int NumberOfRenderedProps
- Protected Attributes inherited from vtkObject
unsigned char Debug
vtkTimeStamp MTime
vtkSubjectHelper * SubjectHelper
- Protected Attributes inherited from vtkObjectBase
int ReferenceCount
vtkWeakPointerBase ** WeakPointers

Detailed Description

Implement a shadow mapping render pass.

Render the opaque polygonal geometry of a scene with shadow maps (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 OCCLUDER property keys. The second pass is to render the opaque objects with the RECEIVER keys.
See also:
vtkRenderPass, vtkOpaquePass
Tests:
vtkShadowMapPass (Tests)

Definition at line 63 of file vtkShadowMapPass.h.


Member Typedef Documentation

Reimplemented from vtkRenderPass.

Definition at line 67 of file vtkShadowMapPass.h.


Constructor & Destructor Documentation

vtkShadowMapPass::vtkShadowMapPass ( )
protected

Default constructor. DelegatetPass is set to NULL.

virtual vtkShadowMapPass::~vtkShadowMapPass ( )
protectedvirtual

Destructor.


Member Function Documentation

static vtkShadowMapPass* vtkShadowMapPass::New ( )
static

Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

Reimplemented from vtkObject.

virtual const char* vtkShadowMapPass::GetClassName ( )
virtual

Reimplemented from vtkRenderPass.

static int vtkShadowMapPass::IsTypeOf ( const char *  name)
static

Return 1 if this class type 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.

virtual int vtkShadowMapPass::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 vtkShadowMapPass* vtkShadowMapPass::SafeDownCast ( vtkObject o)
static

Reimplemented from vtkRenderPass.

void vtkShadowMapPass::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 vtkShadowMapPass::Render ( const vtkRenderState s)
virtual

Perform rendering according to a render state s.

Precondition:
s_exists: s!=0

Implements vtkRenderPass.

void vtkShadowMapPass::ReleaseGraphicsResources ( vtkWindow w)
virtual

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

Precondition:
w_exists: w!=0

Reimplemented from vtkRenderPass.

virtual vtkShadowMapBakerPass* vtkShadowMapPass::GetShadowMapBakerPass ( )
virtual

Pass that generates the shadow maps. the vtkShadowMapPass will use the Resolution ivar of this pass. Initial value is a NULL pointer.

virtual void vtkShadowMapPass::SetShadowMapBakerPass ( vtkShadowMapBakerPass shadowMapBakerPass)
virtual

Pass that generates the shadow maps. the vtkShadowMapPass will use the Resolution ivar of this pass. Initial value is a NULL pointer.

virtual vtkRenderPass* vtkShadowMapPass::GetOpaquePass ( )
virtual

Pass that render the opaque geometry, with no camera pass (otherwise it does not work with Ice-T). Initial value is a NULL pointer. Typically a sequence pass with a light pass and opaque pass. This should be the Opaque pass of the vtkShadowMapBakerPass without the vtkCameraPass.

virtual void vtkShadowMapPass::SetOpaquePass ( vtkRenderPass opaquePass)
virtual

Pass that render the opaque geometry, with no camera pass (otherwise it does not work with Ice-T). Initial value is a NULL pointer. Typically a sequence pass with a light pass and opaque pass. This should be the Opaque pass of the vtkShadowMapBakerPass without the vtkCameraPass.

void vtkShadowMapPass::BuildSpotLightIntensityMap ( )
protected

Build the intensity map.

void vtkShadowMapPass::CheckSupport ( vtkOpenGLRenderWindow w)
protected

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

Precondition:
w_exists: w!=0

Member Data Documentation

vtkShadowMapBakerPass* vtkShadowMapPass::ShadowMapBakerPass
protected

Definition at line 114 of file vtkShadowMapPass.h.

vtkRenderPass* vtkShadowMapPass::CompositeRGBAPass
protected

Definition at line 115 of file vtkShadowMapPass.h.

vtkRenderPass* vtkShadowMapPass::OpaquePass
protected

Definition at line 117 of file vtkShadowMapPass.h.

vtkFrameBufferObject* vtkShadowMapPass::FrameBufferObject
protected

Graphics resources.

Definition at line 120 of file vtkShadowMapPass.h.

vtkShadowMapPassTextures* vtkShadowMapPass::ShadowMaps
protected

Definition at line 122 of file vtkShadowMapPass.h.

vtkShadowMapPassLightCameras* vtkShadowMapPass::LightCameras
protected

Definition at line 123 of file vtkShadowMapPass.h.

vtkShaderProgram2* vtkShadowMapPass::Program
protected

Definition at line 124 of file vtkShadowMapPass.h.

vtkTextureObject* vtkShadowMapPass::IntensityMap
protected

Definition at line 126 of file vtkShadowMapPass.h.

vtkSampleFunction* vtkShadowMapPass::IntensitySource
protected

Definition at line 129 of file vtkShadowMapPass.h.

vtkImageExport* vtkShadowMapPass::IntensityExporter
protected

Definition at line 130 of file vtkShadowMapPass.h.

vtkImplicitHalo* vtkShadowMapPass::Halo
protected

Definition at line 131 of file vtkShadowMapPass.h.

vtkTimeStamp vtkShadowMapPass::LastRenderTime
protected

Definition at line 133 of file vtkShadowMapPass.h.


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