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API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/Materials > API/Runtime/Engine/Materials/UMaterialInstance
References
| Module | Engine |
| Header | /Engine/Source/Runtime/Engine/Classes/Materials/MaterialInstance.h |
| Include | #include "Materials/MaterialInstance.h" |
| Source | /Engine/Source/Runtime/Engine/Private/Materials/MaterialInstance.cpp |
void StartCacheUniformExpressions&40;&41; const
Remarks
Tracking of in-flight uniform expression cache update operations for the material instance, for thread safety destroying the resource.