FDistributionLookupTable Struct Reference

#include <Distribution.h>

Public Member Functions
	FDistributionLookupTable ()
void	Empty ()
bool	IsEmpty () const
float	GetValuesPerEntry () const
float	GetValueCount () const
void	GetEntry (float Time, const float *&Entry1, const float *&Entry2, float &LerpAlpha) const
void	GetRange (float *OutMinValues, float *OutMaxValues)

Public Attributes
float	TimeScale
float	TimeBias
TArray< float >	Values
uint8	Op
uint8	EntryCount
uint8	EntryStride
uint8	SubEntryStride
uint8	LockFlag

Detailed Description

Lookup table for distributions.

Lookup table used to sample distributions at runtime.

Constructor & Destructor Documentation

FDistributionLookupTable()

FDistributionLookupTable::FDistributionLookupTable ( )

inline

Default constructor.

Member Function Documentation

Empty()

void FDistributionLookupTable::Empty ( )

inline

Empties the table of all values.

GetEntry()

void FDistributionLookupTable::GetEntry ( float  Time, const float *&  Entry1, const float *&  Entry2, float &  LerpAlpha  ) const

inline

Get the entry for Time and the one after it for interpolating (along with an alpha for interpolation)

Parameters

Time	The time we are looking to retrieve
Entry1	Out variable that is the first (or only) entry
Entry2	Out variable that is the second entry (for interpolating)
LerpAlpha	Out variable that is the alpha for interpolating between Entry1 and Entry2

GetRange()

void FDistributionLookupTable::GetRange ( float *  OutMinValues, float *  OutMaxValues  )

inline

Get the range of values produced by the table.

Note

: in the case of a constant curve, this will not be exact!

Parameters

OutMinValues	- The smallest values produced by this table.
OutMaxValues	- The largest values produced by this table.

GetValueCount()

float FDistributionLookupTable::GetValueCount ( ) const

inline

Compute the number of values contained in the table.

GetValuesPerEntry()

float FDistributionLookupTable::GetValuesPerEntry ( ) const

inline

Computes the number of Values per entry in the table.

IsEmpty()

bool FDistributionLookupTable::IsEmpty ( ) const

inline

Returns true if the lookup table contains no values.

Member Data Documentation

EntryCount

uint8 FDistributionLookupTable::EntryCount

Number of entries in the table.

EntryStride

uint8 FDistributionLookupTable::EntryStride

Number of values between entries [1,8].

LockFlag

uint8 FDistributionLookupTable::LockFlag

Lock axes flag for vector distributions.

Op

uint8 FDistributionLookupTable::Op

Operation for which the table was built.

SubEntryStride

uint8 FDistributionLookupTable::SubEntryStride

Number of values between sub-entries [0,4].

TimeBias

float FDistributionLookupTable::TimeBias

Absolute time of the first value

TimeScale

float FDistributionLookupTable::TimeScale

Time between values in the lookup table

Values

TArray< float > FDistributionLookupTable::Values

Values in the table.

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The documentation for this struct was generated from the following files:

• Engine/Source/Runtime/Engine/Classes/Distributions/Distribution.h
• Engine/Source/Runtime/Engine/Public/Distributions.h