|
virtual int | IsA (const char *type) |
| Return 1 if this class is the same type of (or a subclass of) the named class. More...
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vtkHAVSVolumeMapper * | NewInstance () const |
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void | PrintSelf (ostream &os, vtkIndent indent) override |
| Methods invoked by print to print information about the object including superclasses. More...
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virtual void | SetPartiallyRemoveNonConvexities (bool) |
| regions by removing ray segments larger than the max cell size. More...
|
|
virtual bool | GetPartiallyRemoveNonConvexities () |
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virtual void | SetLevelOfDetailTargetTime (float) |
| Set/get the desired level of detail target time measured in frames/sec. More...
|
|
virtual float | GetLevelOfDetailTargetTime () |
|
virtual void | SetLevelOfDetail (bool) |
| Turn on/off level-of-detail volume rendering. More...
|
|
virtual bool | GetLevelOfDetail () |
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void | SetLevelOfDetailMethod (int) |
| Set/get the current level-of-detail method. More...
|
|
virtual int | GetLevelOfDetailMethod () |
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void | SetLevelOfDetailMethodField () |
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void | SetLevelOfDetailMethodArea () |
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virtual void | SetKBufferSize (int) |
| Set the kbuffer size. More...
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|
virtual int | GetKBufferSize () |
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void | SetKBufferSizeTo2 () |
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void | SetKBufferSizeTo6 () |
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virtual bool | SupportedByHardware (vtkRenderer *vtkNotUsed(r)) |
| Check hardware support for the HAVS algorithm. More...
|
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virtual void | SetGPUDataStructures (bool)=0 |
| Set/get whether or not the data structures should be stored on the GPU for better peformance. More...
|
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virtual bool | GetGPUDataStructures () |
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vtkUnstructuredGridVolumeMapper * | NewInstance () const |
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void | PrintSelf (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses. More...
|
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virtual void | SetInputData (vtkUnstructuredGridBase *) |
| Set/Get the input data. More...
|
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virtual void | SetInputData (vtkDataSet *) |
|
vtkUnstructuredGridBase * | GetInput () |
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virtual void | SetBlendMode (int) |
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void | SetBlendModeToComposite () |
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void | SetBlendModeToMaximumIntensity () |
|
virtual int | GetBlendMode () |
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virtual void | Render (vtkRenderer *ren, vtkVolume *vol)=0 |
| WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE DO NOT USE THIS METHOD OUTSIDE OF THE RENDERING PROCESS Render the volume. More...
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virtual void | ReleaseGraphicsResources (vtkWindow *) |
| WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE Release any graphics resources that are being consumed by this mapper. More...
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vtkAbstractVolumeMapper * | NewInstance () const |
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vtkDataSet * | GetDataSetInput () |
| Set/Get the input data. More...
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vtkDataObject * | GetDataObjectInput () |
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virtual double * | GetBounds () |
| Return bounding box (array of six doubles) of data expressed as (xmin,xmax, ymin,ymax, zmin,zmax). More...
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virtual void | GetBounds (double bounds[6]) |
| Get the bounds for this mapper as (Xmin,Xmax,Ymin,Ymax,Zmin,Zmax). More...
|
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virtual void | SetScalarMode (int) |
| Control how the mapper works with scalar point data and cell attribute data. More...
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virtual int | GetScalarMode () |
|
void | SetScalarModeToDefault () |
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void | SetScalarModeToUsePointData () |
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void | SetScalarModeToUseCellData () |
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void | SetScalarModeToUsePointFieldData () |
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void | SetScalarModeToUseCellFieldData () |
|
virtual void | SelectScalarArray (int arrayNum) |
| When ScalarMode is set to UsePointFieldData or UseCellFieldData, you can specify which scalar array to use during rendering. More...
|
|
virtual void | SelectScalarArray (const char *arrayName) |
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virtual char * | GetArrayName () |
| Get the array name or number and component to use for rendering. More...
|
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virtual int | GetArrayId () |
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virtual int | GetArrayAccessMode () |
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const char * | GetScalarModeAsString () |
| Return the method for obtaining scalar data. More...
|
|
virtual float | GetGradientMagnitudeScale () |
| WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE. More...
|
|
virtual float | GetGradientMagnitudeBias () |
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virtual float | GetGradientMagnitudeScale (int) |
|
virtual float | GetGradientMagnitudeBias (int) |
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vtkAbstractMapper3D * | NewInstance () const |
|
double * | GetCenter () |
| Return the Center of this mapper's data. More...
|
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void | GetCenter (double center[3]) |
|
double | GetLength () |
| Return the diagonal length of this mappers bounding box. More...
|
|
virtual int | IsARayCastMapper () |
| Is this a ray cast mapper? A subclass would return 1 if the ray caster is needed to generate an image from this mapper. More...
|
|
virtual int | IsARenderIntoImageMapper () |
| Is this a "render into image" mapper? A subclass would return 1 if the mapper produces an image by rendering into a software image buffer. More...
|
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void | GetClippingPlaneInDataCoords (vtkMatrix4x4 *propMatrix, int i, double planeEquation[4]) |
| Get the ith clipping plane as a homogeneous plane equation. More...
|
|
int | GetNumberOfClippingPlanes () |
| Get the number of clipping planes. More...
|
|
vtkAbstractMapper * | NewInstance () const |
|
virtual vtkMTimeType | GetMTime () |
| Override Modifiedtime as we have added Clipping planes. More...
|
|
virtual double | GetTimeToDraw () |
| Get the time required to draw the geometry last time it was rendered. More...
|
|
void | AddClippingPlane (vtkPlane *plane) |
| Specify clipping planes to be applied when the data is mapped (at most 6 clipping planes can be specified). More...
|
|
void | RemoveClippingPlane (vtkPlane *plane) |
|
void | RemoveAllClippingPlanes () |
|
virtual void | SetClippingPlanes (vtkPlaneCollection *) |
| Get/Set the vtkPlaneCollection which specifies the clipping planes. More...
|
|
virtual vtkPlaneCollection * | GetClippingPlanes () |
|
void | SetClippingPlanes (vtkPlanes *planes) |
| An alternative way to set clipping planes: use up to six planes found in the supplied instance of the implicit function vtkPlanes. More...
|
|
void | ShallowCopy (vtkAbstractMapper *m) |
| Make a shallow copy of this mapper. More...
|
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vtkAlgorithm * | NewInstance () const |
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int | HasExecutive () |
| Check whether this algorithm has an assigned executive. More...
|
|
vtkExecutive * | GetExecutive () |
| Get this algorithm's executive. More...
|
|
virtual void | SetExecutive (vtkExecutive *executive) |
| Set this algorithm's executive. More...
|
|
virtual int | ProcessRequest (vtkInformation *request, vtkInformationVector **inInfo, vtkInformationVector *outInfo) |
| Upstream/Downstream requests form the generalized interface through which executives invoke a algorithm's functionality. More...
|
|
int | ProcessRequest (vtkInformation *request, vtkCollection *inInfo, vtkInformationVector *outInfo) |
| Version of ProcessRequest() that is wrapped. More...
|
|
virtual int | ComputePipelineMTime (vtkInformation *request, vtkInformationVector **inInfoVec, vtkInformationVector *outInfoVec, int requestFromOutputPort, vtkMTimeType *mtime) |
| A special version of ProcessRequest meant specifically for the pipeline modified time request. More...
|
|
virtual int | ModifyRequest (vtkInformation *request, int when) |
| This method gives the algorithm a chance to modify the contents of a request before or after (specified in the when argument) it is forwarded. More...
|
|
vtkInformation * | GetInputPortInformation (int port) |
| Get the information object associated with an input port. More...
|
|
vtkInformation * | GetOutputPortInformation (int port) |
| Get the information object associated with an output port. More...
|
|
virtual vtkInformation * | GetInformation () |
| Set/Get the information object associated with this algorithm. More...
|
|
virtual void | SetInformation (vtkInformation *) |
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int | GetNumberOfInputPorts () |
| Get the number of input ports used by the algorithm. More...
|
|
int | GetNumberOfOutputPorts () |
| Get the number of output ports provided by the algorithm. More...
|
|
void | Register (vtkObjectBase *o) override |
| Participate in garbage collection. More...
|
|
void | UnRegister (vtkObjectBase *o) override |
| Decrease the reference count (release by another object). More...
|
|
virtual void | SetAbortExecute (int) |
| Set/Get the AbortExecute flag for the process object. More...
|
|
virtual int | GetAbortExecute () |
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virtual void | AbortExecuteOn () |
|
virtual void | AbortExecuteOff () |
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virtual void | SetProgress (double) |
| Set/Get the execution progress of a process object. More...
|
|
virtual double | GetProgress () |
|
void | UpdateProgress (double amount) |
| Update the progress of the process object. More...
|
|
void | SetProgressText (const char *ptext) |
| Set the current text message associated with the progress state. More...
|
|
virtual char * | GetProgressText () |
|
virtual unsigned long | GetErrorCode () |
| The error code contains a possible error that occurred while reading or writing the file. More...
|
|
virtual void | SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name) |
| Set the input data arrays that this algorithm will process. More...
|
|
virtual void | SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType) |
|
virtual void | SetInputArrayToProcess (int idx, vtkInformation *info) |
|
virtual void | SetInputArrayToProcess (int idx, int port, int connection, const char *fieldAssociation, const char *attributeTypeorName) |
| String based versions of SetInputArrayToProcess(). More...
|
|
vtkInformation * | GetInputArrayInformation (int idx) |
| Get the info object for the specified input array to this algorithm. More...
|
|
void | RemoveAllInputs () |
| Remove all the input data. More...
|
|
vtkDataObject * | GetOutputDataObject (int port) |
| Get the data object that will contain the algorithm output for the given port. More...
|
|
vtkDataObject * | GetInputDataObject (int port, int connection) |
| Get the data object that will contain the algorithm input for the given port and given connection. More...
|
|
virtual void | SetInputConnection (int port, vtkAlgorithmOutput *input) |
| Set the connection for the given input port index. More...
|
|
virtual void | SetInputConnection (vtkAlgorithmOutput *input) |
|
virtual void | AddInputConnection (int port, vtkAlgorithmOutput *input) |
| Add a connection to the given input port index. More...
|
|
virtual void | AddInputConnection (vtkAlgorithmOutput *input) |
|
virtual void | RemoveInputConnection (int port, vtkAlgorithmOutput *input) |
| Remove a connection from the given input port index. More...
|
|
virtual void | RemoveInputConnection (int port, int idx) |
| Remove a connection given by index idx. More...
|
|
virtual void | RemoveAllInputConnections (int port) |
| Removes all input connections. More...
|
|
virtual void | SetInputDataObject (int port, vtkDataObject *data) |
| Sets the data-object as an input on the given port index. More...
|
|
virtual void | SetInputDataObject (vtkDataObject *data) |
|
virtual void | AddInputDataObject (int port, vtkDataObject *data) |
| Add the data-object as an input to this given port. More...
|
|
virtual void | AddInputDataObject (vtkDataObject *data) |
|
vtkAlgorithmOutput * | GetOutputPort (int index) |
| Get a proxy object corresponding to the given output port of this algorithm. More...
|
|
vtkAlgorithmOutput * | GetOutputPort () |
|
int | GetNumberOfInputConnections (int port) |
| Get the number of inputs currently connected to a port. More...
|
|
int | GetTotalNumberOfInputConnections () |
| Get the total number of inputs for this algorithm. More...
|
|
vtkAlgorithmOutput * | GetInputConnection (int port, int index) |
| Get the algorithm output port connected to an input port. More...
|
|
vtkAlgorithm * | GetInputAlgorithm (int port, int index, int &algPort) |
| Returns the algorithm and the output port index of that algorithm connected to a port-index pair. More...
|
|
vtkAlgorithm * | GetInputAlgorithm (int port, int index) |
| Returns the algorithm connected to a port-index pair. More...
|
|
vtkAlgorithm * | GetInputAlgorithm () |
| Equivalent to GetInputAlgorithm(0, 0). More...
|
|
vtkExecutive * | GetInputExecutive (int port, int index) |
| Returns the executive associated with a particular input connection. More...
|
|
vtkExecutive * | GetInputExecutive () |
| Equivalent to GetInputExecutive(0, 0) More...
|
|
vtkInformation * | GetInputInformation (int port, int index) |
| Return the information object that is associated with a particular input connection. More...
|
|
vtkInformation * | GetInputInformation () |
| Equivalent to GetInputInformation(0, 0) More...
|
|
vtkInformation * | GetOutputInformation (int port) |
| Return the information object that is associated with a particular output port. More...
|
|
virtual void | Update (int port) |
| Bring this algorithm's outputs up-to-date. More...
|
|
virtual void | Update () |
|
virtual int | Update (int port, vtkInformationVector *requests) |
| This method enables the passing of data requests to the algorithm to be used during execution (in addition to bringing a particular port up-to-date). More...
|
|
virtual int | Update (vtkInformation *requests) |
| Convenience method to update an algorithm after passing requests to its first output port. More...
|
|
virtual int | UpdatePiece (int piece, int numPieces, int ghostLevels, const int extents[6]=0) |
| Convenience method to update an algorithm after passing requests to its first output port. More...
|
|
virtual int | UpdateExtent (const int extents[6]) |
| Convenience method to update an algorithm after passing requests to its first output port. More...
|
|
virtual int | UpdateTimeStep (double time, int piece=-1, int numPieces=1, int ghostLevels=0, const int extents[6]=0) |
| Convenience method to update an algorithm after passing requests to its first output port. More...
|
|
virtual void | UpdateInformation () |
| Bring the algorithm's information up-to-date. More...
|
|
virtual void | UpdateDataObject () |
| Create output object(s). More...
|
|
virtual void | PropagateUpdateExtent () |
| Propagate meta-data upstream. More...
|
|
virtual void | UpdateWholeExtent () |
| Bring this algorithm's outputs up-to-date. More...
|
|
void | ConvertTotalInputToPortConnection (int ind, int &port, int &conn) |
| Convenience routine to convert from a linear ordering of input connections to a port/connection pair. More...
|
|
virtual void | SetReleaseDataFlag (int) |
| Turn release data flag on or off for all output ports. More...
|
|
virtual int | GetReleaseDataFlag () |
|
void | ReleaseDataFlagOn () |
|
void | ReleaseDataFlagOff () |
|
int | UpdateExtentIsEmpty (vtkInformation *pinfo, vtkDataObject *output) |
| This detects when the UpdateExtent will generate no data This condition is satisfied when the UpdateExtent has zero volume (0,-1,...) or the UpdateNumberOfPieces is 0. More...
|
|
int | UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType) |
|
int | SetUpdateExtentToWholeExtent (int port) |
| If the whole output extent is required, this method can be called to set the output update extent to the whole extent. More...
|
|
int | SetUpdateExtentToWholeExtent () |
| Convenience function equivalent to SetUpdateExtentToWholeExtent(0) This method assumes that the whole extent is known (that UpdateInformation has been called). More...
|
|
void | SetUpdateExtent (int port, int piece, int numPieces, int ghostLevel) |
| Set the output update extent in terms of piece and ghost levels. More...
|
|
void | SetUpdateExtent (int piece, int numPieces, int ghostLevel) |
| Convenience function equivalent to SetUpdateExtent(0, piece, numPieces, ghostLevel) More...
|
|
void | SetUpdateExtent (int port, int extent[6]) |
| Set the output update extent for data objects that use 3D extents. More...
|
|
void | SetUpdateExtent (int extent[6]) |
| Convenience function equivalent to SetUpdateExtent(0, extent) More...
|
|
int * | GetUpdateExtent () |
| These functions return the update extent for output ports that use 3D extents. More...
|
|
int * | GetUpdateExtent (int port) |
|
void | GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1) |
|
void | GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1) |
|
void | GetUpdateExtent (int extent[6]) |
|
void | GetUpdateExtent (int port, int extent[6]) |
|
int | GetUpdatePiece () |
| These functions return the update extent for output ports that use piece extents. More...
|
|
int | GetUpdatePiece (int port) |
|
int | GetUpdateNumberOfPieces () |
|
int | GetUpdateNumberOfPieces (int port) |
|
int | GetUpdateGhostLevel () |
|
int | GetUpdateGhostLevel (int port) |
|
void | SetProgressObserver (vtkProgressObserver *) |
| If an ProgressObserver is set, the algorithm will report progress through it rather than directly. More...
|
|
virtual vtkProgressObserver * | GetProgressObserver () |
|
| 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...
|
|
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) |
|
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) |
| 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) |
|
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) |
|
int | InvokeEvent (unsigned long event) |
|
int | InvokeEvent (const char *event) |
|
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 | PrintHeader (ostream &os, vtkIndent indent) |
|
virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
|
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 vtkObjectBase * | NewInstanceInternal () const |
|
| vtkHAVSVolumeMapper () |
|
| ~vtkHAVSVolumeMapper () |
|
virtual void | Initialize (vtkRenderer *ren, vtkVolume *vol)=0 |
|
void | InitializePrimitives (vtkVolume *vol) |
|
void | InitializeScalars () |
|
void | InitializeLevelOfDetail () |
|
void | InitializeLookupTables (vtkVolume *vol) |
|
void | FRadixSort (vtkHAVSSortedFace *array, vtkHAVSSortedFace *temp, int lo, int up) |
|
void | FRadix (int byte, int len, vtkHAVSSortedFace *source, vtkHAVSSortedFace *dest, int *count) |
|
void | UpdateLevelOfDetail (float targetTime) |
|
void | PartialVisibilitySort (float *eye) |
|
bool | CheckInitializationError () |
|
| vtkUnstructuredGridVolumeMapper () |
|
| ~vtkUnstructuredGridVolumeMapper () |
|
virtual int | FillInputPortInformation (int, vtkInformation *) |
| Fill the input port information objects for this algorithm. More...
|
|
| vtkAbstractVolumeMapper () |
|
| ~vtkAbstractVolumeMapper () |
|
| vtkAbstractMapper3D () |
|
| ~vtkAbstractMapper3D () |
|
| vtkAbstractMapper () |
|
| ~vtkAbstractMapper () |
|
| vtkAlgorithm () |
|
| ~vtkAlgorithm () override |
|
virtual int | FillOutputPortInformation (int port, vtkInformation *info) |
| Fill the output port information objects for this algorithm. More...
|
|
virtual void | SetNumberOfInputPorts (int n) |
| Set the number of input ports used by the algorithm. More...
|
|
virtual void | SetNumberOfOutputPorts (int n) |
| Set the number of output ports provided by the algorithm. More...
|
|
int | InputPortIndexInRange (int index, const char *action) |
|
int | OutputPortIndexInRange (int index, const char *action) |
|
int | GetInputArrayAssociation (int idx, vtkInformationVector **inputVector) |
| Get the assocition of the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...
|
|
int | GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector) |
| Filters that have multiple connections on one port can use this signature. More...
|
|
int | GetInputArrayAssociation (int idx, vtkDataObject *input) |
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkInformationVector **inputVector) |
| Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...
|
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association) |
|
vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
| Filters that have multiple connections on one port can use this signature. More...
|
|
vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input) |
|
vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input, int &association) |
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector) |
| Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass. More...
|
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association) |
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
| Filters that have multiple connections on one port can use this signature. More...
|
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input) |
|
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association) |
|
vtkInformation * | GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector) |
| This method takes in an index (as specified in SetInputArrayToProcess) and a pipeline information vector. More...
|
|
virtual vtkExecutive * | CreateDefaultExecutive () |
| Create a default executive. More...
|
|
virtual void | SetErrorCode (unsigned long) |
| The error code contains a possible error that occurred while reading or writing the file. More...
|
|
void | ReportReferences (vtkGarbageCollector *) override |
|
virtual void | SetNthInputConnection (int port, int index, vtkAlgorithmOutput *input) |
| Replace the Nth connection on the given input port. More...
|
|
virtual void | SetNumberOfInputConnections (int port, int n) |
| Set the number of input connections on the given input port. More...
|
|
void | SetInputDataInternal (int port, vtkDataObject *input) |
| These methods are used by subclasses to implement methods to set data objects directly as input. More...
|
|
void | AddInputDataInternal (int port, vtkDataObject *input) |
|
| 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 () |
|
| vtkObjectBase () |
|
virtual | ~vtkObjectBase () |
|
virtual void | CollectRevisions (ostream &) |
|
| vtkObjectBase (const vtkObjectBase &) |
|
void | operator= (const vtkObjectBase &) |
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Hardware-Assisted Visibility Sorting unstructured grid mapper.
vtkHAVSVolumeMapper is a class that renders polygonal data (represented as an unstructured grid) using the Hardware-Assisted Visibility Sorting (HAVS) algorithm. First the unique triangles are sorted in object space, then they are sorted in image space using a fixed size A-buffer implemented on the GPU called the k-buffer. The HAVS algorithm excels at rendering large datasets quickly. The trade-off is that the algorithm may produce some rendering artifacts due to an insufficient k size (currently 2 or 6 is supported) or read/write race conditions.
A built in level-of-detail (LOD) approach samples the geometry using one of two heuristics (field or area). If LOD is enabled, the amount of geometry that is sampled and rendered changes dynamically to stay within the target frame rate. The field sampling method generally works best for datasets with cell sizes that don't vary much in size. On the contrary, the area sampling approach gives better approximations when the volume has a lot of variation in cell size.
The HAVS algorithm uses several advanced features on graphics hardware. The k-buffer sorting network is implemented using framebuffer objects (FBOs) with multiple render targets (MRTs). Therefore, only cards that support these features can run the algorithm (at least an ATI 9500 or an NVidia NV40 (6600)).
- Attention
- Several issues had to be addressed to get the HAVS algorithm working within the vtk framework. These additions forced the code to forsake speed for the sake of compliance and robustness.
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The HAVS algorithm operates on the triangles that compose the mesh. Therefore, before rendering, the cells are decomposed into unique triangles and stored on the GPU for efficient rendering. The use of GPU data structures is only recommended if the entire geometry can fit in graphics memory. Otherwise this feature should be disabled.
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Another new feature is the handling of mixed data types (eg., polygonal data with volume data). This is handled by reading the z-buffer from the current window and copying it into the framebuffer object for off-screen rendering. The depth test is then enabled so that the volume only appears over the opaque geometry. Finally, the results of the off-screen rendering are blended into the framebuffer as a transparent, view-aligned texture.
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Instead of using a preintegrated 3D lookup table for storing the ray integral, this implementation uses partial pre-integration. This improves the performance of dynamic transfer function updates by avoiding a costly preprocess of the table.
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A final change to the original algorithm is the handling of non-convexities in the mesh. Due to read/write hazards that may create undesired artifacts with non-convexities when using a inside/outside toggle in the fragment program, another approach was employed. To handle non-convexities, the fragment shader determines if a ray-gap is larger than the max cell size and kill the fragment if so. This approximation performs rather well in practice but may miss small non-convexities.
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For more information on the HAVS algorithm see:
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"Hardware-Assisted Visibility Sorting for Unstructured Volume
Rendering" by S. P. Callahan, M. Ikits, J. L. D. Comba, and C. T. Silva, IEEE Transactions of Visualization and Computer Graphics; May/June 2005.
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For more information on the Level-of-Detail algorithm, see:
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"Interactive Rendering of Large Unstructured Grids Using Dynamic
Level-of-Detail" by S. P. Callahan, J. L. D. Comba, P. Shirley, and C. T. Silva, Proceedings of IEEE Visualization '05, Oct. 2005.
- Acknowledgments:
- This code was developed by Steven P. Callahan under the supervision of Prof. Claudio T. Silva. The code also contains contributions from Milan Ikits, Linh Ha, Huy T. Vo, Carlos E. Scheidegger, and Joao L. D. Comba.
- Acknowledgments:
- The work was supported by grants, contracts, and gifts from the National Science Foundation, the Department of Energy, the Army Research Office, and IBM.
- Acknowledgments:
- The port of HAVS to VTK and ParaView has been primarily supported by Sandia National Labs.
- Tests:
- vtkHAVSVolumeMapper (Tests)
Definition at line 136 of file vtkHAVSVolumeMapper.h.