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TSHVector

A vector of spherical harmonic coefficients.

Unreal Engine C++ API Reference > Runtime > Core > Math

References

   
Module Core
Header /Engine/Source/Runtime/Core/Public/Math/SHMath.h
Include #include "Math/SHMath.h"

Syntax

template<int32 Order>  
class TSHVector

Remarks

A vector of spherical harmonic coefficients.

Variables

  Type Name Description
Public variable float[NumTotalFloats] V  

Constructors

  Type Name Description
Public function   Default constructor.
Public function  

TSHVector ( const FVector4f& Vector
)

  
Public function  

TSHVector ( const TSHVector< OtherOrder >& Other
)

  
Public function  

TSHVector ( float V0,
float V1,
float V2,
float V3
)

  

Functions

  Type Name Description
Public function Static TSHVector The ambient incident lighting function.
Public function void

ApplyWindowing ( float Lambda
)

  
Public function Const bool  
Public function Static TSHVector

CalcDiffuseTransfer ( const FVector& Normal
)

  
Public function Const float Calculates the integral of the function over the surface of the sphere.
Public function Static float

FindWindowingLambda ( const TSHVector& Vector,
float TargetLaplacian
)

  
Public function Const FVector Compute the direction which the spherical harmonic is highest at.
Public function void Scales the function uniformly so its integral equals one.
Public function TSHVector< 2 >

SHBasisFunction ( const FVector& Vector
)

 Specialization for 2nd order to avoid expensive trig functions.
Public function TSHVector< 3 >

SHBasisFunction ( const FVector& Vector
)

 Specialization for 3rd order to avoid expensive trig functions.
Public function Static TSHVector

SHBasisFunction ( const FVector& Vector
)

 Returns the value of the SH basis L,M at the point on the sphere defined by the unit vector Vector.

Operators

  Type Name Description
Public function TSHVector &

operator*= ( const float& B
)

 In-place scalar multiplication operator.
Public function TSHVector &

operator/= ( const float& Scalar
)

 In-place scalar division operator.
Public function TSHVector &

operator+= ( const TSHVector& B
)

 In-place addition operator.
Public function TSHVector &

operator-= ( const TSHVector& B
)

 In-place subtraction operator.

Constants

Name Description
ConstantBasisIntegral The integral of the constant SH basis.
MaxSHBasis  
MaxSHOrder  
NumComponentsPerSIMDVector  
NumSIMDVectors  
NumTotalFloats  

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