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> Unreal Engine API Reference > Runtime > Chaos > Chaos > FTriangleMeshImplicitObject > FTriangleMeshImplicitObject::GetExternalFaceIndexFromInternal

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FTriangleMeshImplicitObject::GetExternalFaceIndexFromInternal

Returns -1 if InternalFaceIndex is not in map, or map is invalid.

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References

Module	Chaos
Header	/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/TriangleMeshImplicitObject.h
Include	#include "Chaos/TriangleMeshImplicitObject.h"
Source	/Engine/Source/Runtime/Experimental/Chaos/Private/Chaos/TriangleMeshImplicitObject.cpp

Syntax

int32 GetExternalFaceIndexFromInternal
(
int32 InternalFaceIndex
) const

Remarks

Returns -1 if InternalFaceIndex is not in map, or map is invalid.

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