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> Unreal Engine API Reference > Runtime > Engine > Engine > USkeletalMesh > USkeletalMesh::InvalidateDeriveDataCacheGUID

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USkeletalMesh::InvalidateDeriveDataCacheGUID

Force the creation of a new GUID use to build the derive data cache key.

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References

Module	Engine
Header	/Engine/Source/Runtime/Engine/Classes/Engine/SkeletalMesh.h
Include	#include "Engine/SkeletalMesh.h"
Source	/Engine/Source/Runtime/Engine/Private/SkeletalMesh.cpp

Syntax

void InvalidateDeriveDataCacheGUID()

Remarks

Force the creation of a new GUID use to build the derive data cache key. Next time a build happen the whole skeletal mesh will be rebuild. Use this when you change stuff not in the skeletal mesh ddc key, like the geometry (import, re-import) Every big data should not be in the ddc key and should use this function, because its slow to create a key with big data.

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