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Module 

Header 
/Engine/Source/Runtime/Core/Public/Math/Matrix.h 
Include 
#include "Math/Matrix.h" 
Source 
/Engine/Source/Runtime/Core/Public/Math/Matrix.inl 
TVector< T > ExtractScaling
(
T Tolerance
)
Remove any scaling from this matrix (ie magnitude of each row is 1) and return the 3D scale vector that was initially present with error Tolerance
Remove any scaling from this matrix (ie magnitude of each row is 1) and return the 3D scale vector that was initially present.