This reference page is linked to from the following overview topics: FBX SDK 2012, List of Python FBX classes.

Detailed Description

This object contains methods for accessing point animation in a cache file.

The FBX SDK supports two point cache file formats :

ePC2: the 3ds Max Point Cache 2 file format.
eMC: the Maya Cache file format.

Accessing cache data using these formats differ significantly. To address this difference, two sets of methods have been created. Use the GetCacheFileFormat() function to determine which set of methods to use.

Examples:: ExportScene03/main.cxx, ViewScene/DrawScene.cxx, and ViewScene/InitScene.cxx.

Definition at line 62 of file kfbxcache.h.

#include <kfbxcache.h>

Inheritance diagram for KFbxCache:

[legend]

List of all members.

Public Types
enum	EOpenFlag { eO_RDONLY, eO_WRONLY }
Public Member Functions
ePC2 Format Specific Functions.
bool	OpenFileForWrite (double pFrameStartOffset, double pSamplingFrameRate, unsigned int pSampleCount, unsigned int pPointCount)
	Open a cache file for writing.
unsigned int	GetSampleCount ()
	Get the number of frames of animation found in the point cache file.
unsigned int	GetPointCount ()
	Get the number of points animated in the cache file.
double	GetFrameStartOffset ()
	Get the start time of the animation.
bool	Read (unsigned int pFrameIndex, double *pBuffer, unsigned int pPointCount)
	Read a sample at a given frame index.
bool	Write (unsigned int pFrameIndex, double *pBuffer)
	Write a sample at a given frame index.
File conversion Functions.
bool	ConvertFromPC2ToMC (EMCFileCount pFileCount, double pSamplingFrameRate)
	Create an eMC cache file from an ePC2 cache file.
bool	ConvertFromMCToPC2 (double pSamplingFrameRate, unsigned int pChannelIndex)
	Create an ePC2 cache file from an eMC cache file.
Static Public Attributes
static const char *	sCacheFilePropertyName
static const char *	sCacheFileAbsolutePathPropertyName
static const char *	sCacheFileTypePropertyName
Protected Member Functions
bool	OpenFile (EOpenFlag pFlag, EMCFileCount pFileCount, double pSamplingFrameRate, const char pChannelName, const char pInterpretation, unsigned int pSampleCount, unsigned int pPointCount, double pFrameStartOffset, EMCDataType pMCDataType=kDoubleVectorArray)
	KFbxCache (KFbxSdkManager &pManager, char const *pName)
virtual void	Construct (const KFbxCache *pFrom)
virtual bool	ConstructProperties (bool pForceSet)
virtual void	Destruct (bool pRecursive, bool pDependents)
Protected Attributes
KFbxCache_internal *	mData
Format Independent Functions.
enum	EFileFormat { eUNKNOWN, ePC2, eMC }
	Supported cache file formats. More...
void	SetCacheFileFormat (EFileFormat pFileFormat)
	Set the cache file format.
EFileFormat	GetCacheFileFormat () const
	Get the cache file format.
void	SetCacheFileName (const char pRelativeFileName, const char pAbsoluteFileName)
	Set the cache file name.
void	GetCacheFileName (KString &pRelativeFileName, KString &pAbsoluteFileName) const
	Get the cache file name.
bool	OpenFileForRead ()
	Open the cache file for reading.
bool	IsOpen () const
	Get the open state of the cache file.
bool	CloseFile ()
	Close the cache file.
double	GetSamplingFrameRate ()
	Get the sampling frame rate of the cache file.
KTime	GetCacheTimePerFrame ()
	Get the sampling frame rate of the cache file, as a KTime object.
eMC Format Specific Functions.
enum	EMCFileCount { eMC_ONE_FILE, eMC_ONE_FILE_PER_FRAME }
	Number of files used to store the animation. More...
enum	EMCDataType { kUnknownData, kDouble, kDoubleArray, kDoubleVectorArray, kInt32Array, kFloatArray, kFloatVectorArray }
	cache datatypes formats. More...
enum	EMCSamplingType { eSAMPLING_REGULAR, eSAMPLING_IRREGULAR }
	cache channel sampling types. More...
bool	OpenFileForWrite (EMCFileCount pFileCount, double pSamplingFrameRate, const char pChannelName, EMCDataType pMCDataType=kDoubleVectorArray, const char pInterpretation="Points")
	Open a cache file for writing.
bool	AddChannel (const char pChannelName, EMCDataType pMCDataType, const char pInterpretation, unsigned int &pChannelIndex)
	Creates a new channel in the cache.
int	GetChannelCount ()
	Get the number of channels in the cache file.
bool	GetChannelName (int pChannelIndex, KString &pChannelName)
	Get the channel name for a specific channel index.
bool	GetChannelDataType (int pChannelIndex, EMCDataType &pChannelType)
	Get the DataType of the specified channel.
int	GetChannelIndex (const char *pChannelName)
	Get the index of the specified channel.
bool	Read (int pChannelIndex, KTime &pTime, double *pBuffer, unsigned int pPointCount)
	Read a sample at a given time.
bool	Read (int pChannelIndex, KTime &pTime, float *pBuffer, unsigned int pPointCount)
	Read a sample at a given time.
bool	Read (int pChannelIndex, KTime &pTime, int *pBuffer, unsigned int pPointCount)
	Read a sample at a given time.
bool	BeginWriteAt (KTime &pTime)
	Instruct the cache system that data is about to be written to it.
bool	Write (int pChannelIndex, KTime &pTime, double *pBuffer, unsigned int pPointCount)
	Write a sample at a given time.
bool	Write (int pChannelIndex, KTime &pTime, float *pBuffer, unsigned int pPointCount)
	Write a sample at a given time.
bool	Write (int pChannelIndex, KTime &pTime, int *pBuffer, unsigned int pPointCount)
	Write a sample at a given time.
bool	EndWriteAt ()
	Instruct the cache system that all the data on all the channels has been written to it for the given time (specified by the BeginWriteAt() call).
bool	GetAnimationRange (int pChannelIndex, KTime &pTimeStart, KTime &pTimeEnd)
	Get the Animation Range of the specified channel.
bool	GetCacheType (EMCFileCount &pFileCount)
	Get the cache type.
bool	GetChannelInterpretation (int pChannelIndex, KString &pInterpretation)
	Get the cache channel interpretation.
bool	GetChannelSamplingType (int pChannelIndex, EMCSamplingType &pSamplingType)
	Get the cache channel sampling type.
bool	GetChannelSamplingRate (int pChannelIndex, KTime &pSamplingRate)
	Get the cache channel sampling rate, in frames per second.
bool	GetChannelSampleCount (int pChannelIndex, unsigned int &pSampleCount)
	Get the number of data points for a channel.
bool	GetChannelPointCount (int pChannelIndex, KTime pTime, unsigned int &pPointCount)
	Get the number of points animated in the cache file, for a channel, for a given time.
int	GetCacheDataFileCount () const
	Returns the number of cache data files.
bool	GetCacheDataFileName (int pIndex, KString &pRelativeFileName, KString &pAbsoluteFileName)
	Get the nth cache file name.
bool	EnableMultiChannelFetching (bool pMultiChannelFetching)
	Enable multi-channel fetching.
bool	GetNextTimeWithData (KTime pCurTime, KTime &pNextTime, int pChannelIndex=-1)
	Get the next time where data is stored.
int	GetDataCount (int pChannelIndex)
	Get the number of data points the channel contains.
bool	GetDataTime (int pChannelIndex, unsigned int pDataIndex, KTime &pTime)
	Get the time of the specified data point.
Error Management
enum	EError { eUNSUPPORTED_ARCHITECTURE, eINVALID_ABSOLUTE_PATH, eINVALID_SAMPLING_RATE, eINVALID_CACHE_FORMAT, eUNSUPPORTED_FILE_VERSION, eCONVERSION_FROM_PC2_FAILED, eCONVERSION_FROM_MC_FAILED, eCACHE_FILE_NOT_FOUND, eCACHE_FILE_NOT_OPENED, eCACHE_FILE_NOT_CREATED, eINVALID_OPEN_FLAG, eERROR_WRITING_SAMPLE, eERROR_READING_SAMPLE, eERROR_DATATYPE, eERROR_INVALIDCHANNELINDEX, eERROR_IRREGULARCHANNELSAMPLING, eERROR_CHANNELINTERPRETATION, eERROR_CHANNELSAMPLING, eERROR_INVALID_FILEINDEX, eERROR_CACHEDATAFILENAME, eERROR_CHANNELSTARTTIME, eERROR_CHANNELPOINTCOUNT, eERROR_INVALIDTIME, eERROR_BEGINWRITEAT_NOTCALLED, eERROR_COUNT }
	Error identifiers. More...
KError &	GetError ()
	Retrieve error object.
EError	GetLastErrorID () const
	Get last error code.
const char *	GetLastErrorString () const
	Get last error string.

Member Enumeration Documentation

enum EFileFormat

Search for all occurrences

Supported cache file formats.

eUNKNOWN
ePC2 3ds Max Point Cache 2 file format
eMC Maya Cache file format

Enumerator:

eUNKNOWN	Search for all occurrences
ePC2	Search for all occurrences
eMC	Search for all occurrences

Definition at line 77 of file kfbxcache.h.

        {
            eUNKNOWN,
            ePC2,
            eMC
        } EFileFormat;

enum EMCFileCount

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Number of files used to store the animation.

eMC_ONE_FILE One file is used for all the frames of animation
eMC_ONE_FILE_PER_FRAME One file is used for every frame of animation

Enumerator:

eMC_ONE_FILE	Search for all occurrences
eMC_ONE_FILE_PER_FRAME	Search for all occurrences

Definition at line 143 of file kfbxcache.h.

        {
            eMC_ONE_FILE,
            eMC_ONE_FILE_PER_FRAME
        } EMCFileCount;

enum EMCDataType

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cache datatypes formats.

kUnknownData
kDouble - not used but has to be defined for consistency reasons
kDoubleArray would be double*
kDoubleVectorArray is double* [3]
kInt32Array is int*
kFloatArray would be float*
kFloatVectorArray is float* [3]

Enumerator:

kUnknownData	Search for all occurrences
kDouble	Search for all occurrences
kDoubleArray	Search for all occurrences
kDoubleVectorArray	Search for all occurrences
kInt32Array	Search for all occurrences
kFloatArray	Search for all occurrences
kFloatVectorArray	Search for all occurrences

Definition at line 158 of file kfbxcache.h.

        {
            kUnknownData,
            kDouble,             // not used
            kDoubleArray,        //KArrayTemplate<kDouble>
            kDoubleVectorArray,  //KArrayTemplate<fbxDouble3> 
            kInt32Array,         //KArrayTemplate<kInt>
            kFloatArray,    
            kFloatVectorArray    //KArrayTemplate<fbxFloat3>
        }EMCDataType;

enum EMCSamplingType

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cache channel sampling types.

eSAMPLING_REGULAR Regular sampling
eSAMPLING_IRREGULAR Irregular sampling

Enumerator:

eSAMPLING_REGULAR	Search for all occurrences
eSAMPLING_IRREGULAR	Search for all occurrences

Definition at line 343 of file kfbxcache.h.

        {
            eSAMPLING_REGULAR,
            eSAMPLING_IRREGULAR
        }EMCSamplingType;

enum EError

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Error identifiers.

eUNSUPPORTED_ARCHITECTURE
eINVALID_ABSOLUTE_PATH
eINVALID_SAMPLING_RATE
eINVALID_CACHE_FORMAT
eUNSUPPORTED_FILE_VERSION
eCONVERSION_FROM_PC2_FAILED
eCONVERSION_FROM_MC_FAILED
eCACHE_FILE_NOT_FOUND
eCACHE_FILE_NOT_OPENED
eCACHE_FILE_NOT_CREATED
eINVALID_OPEN_FLAG
eERROR_WRITING_SAMPLE
eERROR_READING_SAMPLE
eERROR_DATATYPE
eERROR_INVALIDCHANNELINDEX
eERROR_IRREGULARCHANNELSAMPLING
eERROR_CHANNELINTERPRETATION
eERROR_CHANNELSAMPLING
eERROR_INVALID_FILEINDEX
eERROR_CACHEDATAFILENAME
eERROR_COUNT
eERROR_CHANNELSTARTTIME
eERROR_CHANNELPOINTCOUNT
eERROR_INVALIDTIME
eERROR_BEGINWRITEAT_NOTCALLED

Enumerator:

eUNSUPPORTED_ARCHITECTURE	Search for all occurrences
eINVALID_ABSOLUTE_PATH	Search for all occurrences
eINVALID_SAMPLING_RATE	Search for all occurrences
eINVALID_CACHE_FORMAT	Search for all occurrences
eUNSUPPORTED_FILE_VERSION	Search for all occurrences
eCONVERSION_FROM_PC2_FAILED	Search for all occurrences
eCONVERSION_FROM_MC_FAILED	Search for all occurrences
eCACHE_FILE_NOT_FOUND	Search for all occurrences
eCACHE_FILE_NOT_OPENED	Search for all occurrences
eCACHE_FILE_NOT_CREATED	Search for all occurrences
eINVALID_OPEN_FLAG	Search for all occurrences
eERROR_WRITING_SAMPLE	Search for all occurrences
eERROR_READING_SAMPLE	Search for all occurrences
eERROR_DATATYPE	Search for all occurrences
eERROR_INVALIDCHANNELINDEX	Search for all occurrences
eERROR_IRREGULARCHANNELSAMPLING	Search for all occurrences
eERROR_CHANNELINTERPRETATION	Search for all occurrences
eERROR_CHANNELSAMPLING	Search for all occurrences
eERROR_INVALID_FILEINDEX	Search for all occurrences
eERROR_CACHEDATAFILENAME	Search for all occurrences
eERROR_CHANNELSTARTTIME	Search for all occurrences
eERROR_CHANNELPOINTCOUNT	Search for all occurrences
eERROR_INVALIDTIME	Search for all occurrences
eERROR_BEGINWRITEAT_NOTCALLED	Search for all occurrences
eERROR_COUNT	Search for all occurrences

Definition at line 549 of file kfbxcache.h.

        {
            eUNSUPPORTED_ARCHITECTURE,
            eINVALID_ABSOLUTE_PATH,
            eINVALID_SAMPLING_RATE,
            eINVALID_CACHE_FORMAT,
            eUNSUPPORTED_FILE_VERSION,
            eCONVERSION_FROM_PC2_FAILED,
            eCONVERSION_FROM_MC_FAILED,
            eCACHE_FILE_NOT_FOUND,
            eCACHE_FILE_NOT_OPENED,
            eCACHE_FILE_NOT_CREATED,
            eINVALID_OPEN_FLAG,
            eERROR_WRITING_SAMPLE,
            eERROR_READING_SAMPLE,
            eERROR_DATATYPE,
            eERROR_INVALIDCHANNELINDEX,
            eERROR_IRREGULARCHANNELSAMPLING,
            eERROR_CHANNELINTERPRETATION,
            eERROR_CHANNELSAMPLING,
            eERROR_INVALID_FILEINDEX,
            eERROR_CACHEDATAFILENAME,
            eERROR_CHANNELSTARTTIME,
            eERROR_CHANNELPOINTCOUNT,
            eERROR_INVALIDTIME,
            eERROR_BEGINWRITEAT_NOTCALLED,
            eERROR_COUNT
        } EError;

enum EOpenFlag

Search for all occurrences

Enumerator:

eO_RDONLY	Search for all occurrences
eO_WRONLY	Search for all occurrences

Definition at line 605 of file kfbxcache.h.

    {
        eO_RDONLY,
        eO_WRONLY
    } EOpenFlag;

Constructor & Destructor Documentation

KFbxCache	(	KFbxSdkManager &	pManager,
		char const *	pName
	)		`[protected]`

Member Function Documentation

void SetCacheFileFormat ( EFileFormat pFileFormat )

Search for all occurrences

Set the cache file format.

Parameters:

pFileFormat Valid values are ePC2 or eMC.

Examples:: ExportScene03/main.cxx.

EFileFormat GetCacheFileFormat ( ) const

Search for all occurrences

Get the cache file format.

Returns:: The current cache file format, or eUNKNOWN if it is not set.

Examples:: ViewScene/DrawScene.cxx, and ViewScene/InitScene.cxx.

void SetCacheFileName	(	const char *	pRelativeFileName,
		const char *	pAbsoluteFileName
	)

Search for all occurrences

Set the cache file name.

Parameters:

pRelativeFileName	The point cache file, relative to the FBX file name.
pAbsoluteFileName	The point cache file absolute path.

Examples:: ExportScene03/main.cxx.

void GetCacheFileName	(	KString &	pRelativeFileName,
		KString &	pAbsoluteFileName
	)		const

Search for all occurrences

Get the cache file name.

Parameters:

pRelativeFileName	Return the point cache file name, relative to the FBX File name.
pAbsoluteFileName	Return the point cache file absolute path.

bool OpenFileForRead ( )

Search for all occurrences

Open the cache file for reading.

Returns:: true if the file is successfully opened, false otherwise. See the error management functions for error details.

Examples:: ExportScene03/main.cxx, and ViewScene/InitScene.cxx.

bool IsOpen ( ) const

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Get the open state of the cache file.

Returns:: true if the cache file is currently open, false otherwise.

bool CloseFile ( )

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Close the cache file.

Returns:: true if the cache file is closed successfully, false otherwise.

Examples:: ExportScene03/main.cxx.

double GetSamplingFrameRate ( )

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Get the sampling frame rate of the cache file.

Returns:: The sampling frame rate of the cache file, in frames per second.

KTime GetCacheTimePerFrame ( )

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Get the sampling frame rate of the cache file, as a KTime object.

Returns:: The sampling frame rate of the cache file.

bool OpenFileForWrite	(	EMCFileCount	pFileCount,
		double	pSamplingFrameRate,
		const char *	pChannelName,
		EMCDataType	pMCDataType = `kDoubleVectorArray`,
		const char *	pInterpretation = `"Points"`
	)

Search for all occurrences

Open a cache file for writing.

Parameters:

pFileCount	Create one file for each frame of animation, or one file for all the frames.
pSamplingFrameRate	Number of frames per second.
pChannelName	The name of the channel of animation to create.
pMCDataType	The MC DataType of the cache.
pInterpretation	A piece of meta data to help users of the cache understand how to interpret the data.

Examples:: ExportScene03/main.cxx.

bool AddChannel	(	const char *	pChannelName,
		EMCDataType	pMCDataType,
		const char *	pInterpretation,
		unsigned int &	pChannelIndex
	)

Search for all occurrences

Creates a new channel in the cache.

Parameters:

pChannelName	The name of the channel of animation to create.
pMCDataType	The MC DataType of the cache.
pInterpretation	A piece of meta data to help users of the cache understand how to interpret the data.
pChannelIndex	The index of the new animation channel.

Remarks:: pChannelName must be unique within the cache.; pChannelName and pInterpretation cannot be NULL pointers.; This method must be called before adding any data to the cache but after the OpenFileForWrite.

int GetChannelCount ( )

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Get the number of channels in the cache file.

Returns:: The number of animation channels in the cache file.

bool GetChannelName	(	int	pChannelIndex,
		KString &	pChannelName
	)

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Get the channel name for a specific channel index.

Parameters:

pChannelIndex	The index of the animation channel, between 0 and GetChannelCount().
pChannelName	Returns the name of the requested channel.

Returns:: true if successful, false otherwise. See the error management functions for error details.

bool GetChannelDataType	(	int	pChannelIndex,
		EMCDataType &	pChannelType
	)

Search for all occurrences

Get the DataType of the specified channel.

Parameters:

pChannelIndex	The index of the channel.
pChannelType	The channel's datatype

Returns:: true if successful, false otherwise. See the error management functions for error details.

int GetChannelIndex ( const char * pChannelName )

Search for all occurrences

Get the index of the specified channel.

Parameters:

pChannelName The name of the channel.

Returns:: The index of the channel in the cache file, or -1 if an error occurred. See the error management functions for error details.

Examples:: ExportScene03/main.cxx, and ViewScene/DrawScene.cxx.

bool Read	(	int	pChannelIndex,
		KTime &	pTime,
		double *	pBuffer,
		unsigned int	pPointCount
	)

Search for all occurrences

Read a sample at a given time.

Parameters:

pChannelIndex	The index of the animation channel, between 0 and GetChannelCount().
pTime	Time at which the point animation must be evaluated.
pBuffer	The place where the point value will be copied. If the channel datatype is DoubleVectorArray this buffer must be of size 3*pPointCount.
pPointCount	The number of points to read from the point cache file.

Returns:: true if successful, false otherwise. See the error management functions for error details.

Examples:: ExportScene03/main.cxx, and ViewScene/DrawScene.cxx.

bool Read	(	int	pChannelIndex,
		KTime &	pTime,
		float *	pBuffer,
		unsigned int	pPointCount
	)

Search for all occurrences

Read a sample at a given time.

Parameters:

pChannelIndex	The index of the animation channel, between 0 and GetChannelCount().
pTime	Time at which the point animation must be evaluated.
pBuffer	The place where the point value will be copied. If the channel datatype is FloatVectorArray this buffer must be of size 3*pPointCount.
pPointCount	The number of points to read from the point cache file.

Returns:: true if successful, false otherwise. See the error management functions for error details.

bool Read	(	int	pChannelIndex,
		KTime &	pTime,
		int *	pBuffer,
		unsigned int	pPointCount
	)

Search for all occurrences

Read a sample at a given time.

Parameters:

pChannelIndex	The index of the animation channel, between 0 and GetChannelCount().
pTime	Time at which the point animation must be evaluated.
pBuffer	The place where the point value will be copied. This buffer must be of size pPointCount.
pPointCount	The number of points to read from the point cache file.

Returns:: true if successful, false otherwise. See the error management functions for error details.

bool BeginWriteAt ( KTime & pTime )

Search for all occurrences

Instruct the cache system that data is about to be written to it.

This call must appear before any calls to the Write() methods on any channel and terminated by a call to EndWriteAt().

Parameters:

pTime Time at which the point animation must be inserted.

Returns:: true if successful, false otherwise. See the error management functions for error details.

bool Write	(	int	pChannelIndex,
		KTime &	pTime,
		double *	pBuffer,
		unsigned int	pPointCount
	)

Search for all occurrences

Write a sample at a given time.

Parameters:

pChannelIndex	The index of the animation channel, between 0 and GetChannelCount().
pTime	Time at which the point animation must be inserted.
pBuffer	Point to the values to be copied. If the channel datatype is DoubleVectorArray this buffer must be of size 3*pPointCount.
pPointCount	The number of points to write in the point cache file.

Returns:: true if successful, false otherwise. See the error management functions for error details.

Remarks:: This method will fail if the time pTime is different from the time set using the call BeginWriteAt().; For backward compatibility reasons you can still call this method without the prior call to BeginWriteAt() only if this cached system has been defined with one channel. Any other configuration will result in a failure.

Examples:: ExportScene03/main.cxx.

bool Write	(	int	pChannelIndex,
		KTime &	pTime,
		float *	pBuffer,
		unsigned int	pPointCount
	)

Search for all occurrences

Write a sample at a given time.

Parameters:

pChannelIndex	The index of the animation channel, between 0 and GetChannelCount().
pTime	Time at which the point animation must be inserted.
pBuffer	Point to the values to be copied. If the channel datatype is FloatVectorArray this buffer must be of size 3*pPointCount.
pPointCount	The number of points to write in the point cache file.

Returns:: true if successful, false otherwise. See the error management functions for error details.

Remarks:: This method will fail if the time pTime is different from the time set using the call BeginWriteAt().; For backward compatibility reasons you can still call this method without the prior call to BeginWriteAt() only if this cached system has been defined with one channel. Any other configuration will result in a failure.

bool Write	(	int	pChannelIndex,
		KTime &	pTime,
		int *	pBuffer,
		unsigned int	pPointCount
	)

Search for all occurrences

Write a sample at a given time.

Parameters:

pChannelIndex	The index of the animation channel, between 0 and GetChannelCount().
pTime	Time at which the point animation must be inserted.
pBuffer	Point to the values to be copied. This buffer must be of size pPointCount.
pPointCount	The number of points to write in the point cache file.

Returns:: true if successful, false otherwise. See the error management functions for error details.

Remarks:: This method will fail if the time pTime is different from the time set using the call BeginWriteAt().; For backward compatibility reasons you can still call this method without the prior call to BeginWriteAt() only if this cached system has been defined with one channel. Any other configuration will result in a failure.

bool EndWriteAt ( )

Search for all occurrences

Instruct the cache system that all the data on all the channels has been written to it for the given time (specified by the BeginWriteAt() call).

The call to this method must be made after all the Write() for every channel defined.

Returns:: true if successful, false otherwise. See the error management functions for error details.

bool GetAnimationRange	(	int	pChannelIndex,
		KTime &	pTimeStart,
		KTime &	pTimeEnd
	)

Search for all occurrences

Get the Animation Range of the specified channel.

Parameters:

pChannelIndex	The index of the channel.
pTimeStart	The Channel's Animation Start Time
pTimeEnd	The Channel's Animation End Time

Returns:: true if successful, false otherwise. See the error management functions for error details.

bool GetCacheType ( EMCFileCount & pFileCount )

Search for all occurrences

Get the cache type.

Parameters:

pFileCount The cache type.

Returns:: true if successful, false otherwise. See the error management functions for error details.

bool GetChannelInterpretation	(	int	pChannelIndex,
		KString &	pInterpretation
	)

Search for all occurrences

Get the cache channel interpretation.

Parameters:

pChannelIndex	The index of the animation channel, between 0 and GetChannelCount().
pInterpretation	The channel interpretation; user-defined.

Returns:: true if successful, false otherwise. See the error management functions for error details.

bool GetChannelSamplingType	(	int	pChannelIndex,
		EMCSamplingType &	pSamplingType
	)

Search for all occurrences

Get the cache channel sampling type.

Parameters:

pChannelIndex	The index of the animation channel, between 0 and GetChannelCount().
pSamplingType	The sampling type of the channel.

Returns:: true if successful, false otherwise. See the error management functions for error details.

bool GetChannelSamplingRate	(	int	pChannelIndex,
		KTime &	pSamplingRate
	)

Search for all occurrences

Get the cache channel sampling rate, in frames per second.

Parameters:

pChannelIndex	The index of the animation channel, between 0 and GetChannelCount().
pSamplingRate	The sampling rate of the channel. The channel must have a regular sampling type.

Returns:: true if successful, false otherwise. See the error management functions for error details.

bool GetChannelSampleCount	(	int	pChannelIndex,
		unsigned int &	pSampleCount
	)

Search for all occurrences

Get the number of data points for a channel.

Parameters:

pChannelIndex	The index of the animation channel, between 0 and GetChannelCount().
pSampleCount	Number of available samples.

Returns:: true if successful, false otherwise. See the error management functions for error details.

bool GetChannelPointCount	(	int	pChannelIndex,
		KTime	pTime,
		unsigned int &	pPointCount
	)

Search for all occurrences

Get the number of points animated in the cache file, for a channel, for a given time.

Parameters:

pChannelIndex	The index of the animation channel, between 0 and GetChannelCount().
pTime	Reference time; must be within the boundaries of the animation.
pPointCount	Number of available points.

Returns:: true if successful, false otherwise. See the error management functions for error details.

int GetCacheDataFileCount ( ) const

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Returns the number of cache data files.

Returns:: The count returned does not include the main cache file, and depends on the cache type. WIll return -1 point cache support is not enabled.

bool GetCacheDataFileName	(	int	pIndex,
		KString &	pRelativeFileName,
		KString &	pAbsoluteFileName
	)

Search for all occurrences

Get the nth cache file name.

Parameters:

pIndex	Index of the cache file to return; index is zero-based, and must be < GetCacheDataFileCount().
pRelativeFileName	Return the point cache file name, relative to the FBX File name.
pAbsoluteFileName	Return the point cache file absolute path.

Returns:: true if successful, false otherwise. See the error management functions for error details.

bool EnableMultiChannelFetching ( bool pMultiChannelFetching )

Search for all occurrences

Enable multi-channel fetching.

Parameters:

pMultiChannelFetching Enable/disable multi-channel fetching. When multi-channel is enabled, any load of data on a channel at a specific time will prefetch data from all channels, for that specific time. This can reduce disk access, and increase performance (but requires more memory).

Returns:: true if successful, false otherwise. See the error management functions for error details.

bool GetNextTimeWithData	(	KTime	pCurTime,
		KTime &	pNextTime,
		int	pChannelIndex = `-1`
	)

Search for all occurrences

Get the next time where data is stored.

Parameters:

pCurTime	Current time; must be within the boundaries of the animation.
pNextTime	Next time (filled if the function is successful).
pChannelIndex	The index of the animation channel, between 0 and GetChannelCount(). If pChannel is left at -1, get the next time for any channel.

Returns:: true if successful, false otherwise.

int GetDataCount ( int pChannelIndex )

Search for all occurrences

Get the number of data points the channel contains.

Parameters:

pChannelIndex The index of the animation channel, between 0 and GetChannelCount().

Returns:: the number of the channel's data points.

bool GetDataTime	(	int	pChannelIndex,
		unsigned int	pDataIndex,
		KTime &	pTime
	)

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Get the time of the specified data point.

Parameters:

pChannelIndex	The index of the animation channel, between 0 and GetChannelCount().
pDataIndex	Index of the data point.
pTime	Time of the data point (filled if the function is successful).

Returns:: true if successful, false otherwise.

bool OpenFileForWrite	(	double	pFrameStartOffset,
		double	pSamplingFrameRate,
		unsigned int	pSampleCount,
		unsigned int	pPointCount
	)

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Open a cache file for writing.

Parameters:

pFrameStartOffset	Start time of the animation, in frames.
pSamplingFrameRate	Number of frames per second.
pSampleCount	The number of samples to write to the file.
pPointCount	The number of points to write in the point cache file.

Returns:: true if successful, false otherwise. See the error management functions for error details.

unsigned int GetSampleCount ( )

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Get the number of frames of animation found in the point cache file.

Returns:: The number of frames of animation.

unsigned int GetPointCount ( )

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Get the number of points animated in the cache file.

Returns:: The number of points.

double GetFrameStartOffset ( )

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Get the start time of the animation.

Returns:: The start time of the animation, in frames.

bool Read	(	unsigned int	pFrameIndex,
		double *	pBuffer,
		unsigned int	pPointCount
	)

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Read a sample at a given frame index.

Parameters:

pFrameIndex	The index of the animation frame, between 0 and GetSampleCount().
pBuffer	The place where the point value will be copied. This buffer must be of size 3*pPointCount.
pPointCount	The number of points to read from the point cache file.

Returns:: true if successful, false otherwise. See the error management functions for error details.

bool Write	(	unsigned int	pFrameIndex,
		double *	pBuffer
	)

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Write a sample at a given frame index.

Parameters:

pFrameIndex	The index of the animation frame.
pBuffer	Point to the values to be copied. This buffer must be of size 3*pPointCount, as passed to the function OpenFileForWrite().

Returns:: true if successful, false otherwise. See the error management functions for error details.

Remarks:: Successive calls to Write() must use successive index.

bool ConvertFromPC2ToMC	(	EMCFileCount	pFileCount,
		double	pSamplingFrameRate
	)

Search for all occurrences

Create an eMC cache file from an ePC2 cache file.

Parameters:

pFileCount	Create one file for each frame of animation, or one file for all the frames.
pSamplingFrameRate	Number of frames per second used to resample the point animation.

Returns:: true if successful, false otherwise. See the error management functions for error details.

Remarks:: The created point cache file will be located in the _fpc folder associate with the FBX file.

Examples:: ViewScene/InitScene.cxx.

bool ConvertFromMCToPC2	(	double	pSamplingFrameRate,
		unsigned int	pChannelIndex
	)

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Create an ePC2 cache file from an eMC cache file.

Parameters:

pSamplingFrameRate	Number of frames per second to resample the point animation.
pChannelIndex	Index of the channel of animation to read from.

Returns:: true if successful, false otherwise. See the error management functions for error details.

Remarks:: The created point cache file will be located in the _fpc folder associate with the FBX file.

Examples:: ViewScene/InitScene.cxx.

KError& GetError ( )

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Retrieve error object.

Returns:: Reference to error object.

Examples:: ExportScene03/main.cxx, and ViewScene/InitScene.cxx.

EError GetLastErrorID ( ) const

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Get last error code.

Returns:: Last error code.

const char* GetLastErrorString ( ) const

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Get last error string.

Returns:: Textual description of the last error.

bool OpenFile	(	EOpenFlag	pFlag,
		EMCFileCount	pFileCount,
		double	pSamplingFrameRate,
		const char *	pChannelName,
		const char *	pInterpretation,
		unsigned int	pSampleCount,
		unsigned int	pPointCount,
		double	pFrameStartOffset,
		EMCDataType	pMCDataType = `kDoubleVectorArray`
	)		`[protected]`