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> Unreal Engine API Reference > Runtime > Chaos > Chaos > FPBDStiffness

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FPBDStiffness

Stiffness class for managing real time update to the weight map and low/high value ranges and to exponentiate the stiffness value depending on the iterations and Dt.

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References

Module	Chaos
Header	/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/PBDStiffness.h
Include	#include "Chaos/PBDStiffness.h"

Syntax

class FPBDStiffness

Remarks

Stiffness class for managing real time update to the weight map and low/high value ranges and to exponentiate the stiffness value depending on the iterations and Dt.

Constructors

	Name	Description
	FPBDStiffness ( const TConstArrayView< FReal >& Mu..., const FVec2& InWeightedValue, int32 ParticleCount, int32 TableSize, FReal InParameterFitBase )	Weightmap constructor.

Destructors

	Name	Description
	~FPBDStiffness()

Functions

	Name	Description
void	ApplyValues ( const FReal Dt, const int32 NumIterations )	Update the weight map table with the current simulation parameters.
FReal	GetHigh()	Return the exponential value at the High weight.
FReal	GetLow()	Return the exponential value at the Low weight.
const FVec2 ...	GetWeightedValue()	Return the low and high values set for this weight map.
bool	HasWeightMap()	Return whether this object contains weight map values.
int32	Num()	Return the number of values stored in the weight map.
void	SetWeightedValue ( const FVec2& InWeightedValue )	Set the low and high values of the weight map.

Operators

		Name	Description
		operator FReal()	Return the exponential stiffness value when the weight map is not used.
	FReal	operator[] ( int32 Index )	Lookup for the exponential weighted value at the specified weight map index.

Constants

Name	Description
ParameterFrequency

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