virtual void ProxyLOD ( const [TArray](API\Runtime\Core\Containers\TArray)< struct [FInstancedMeshMergeData](API\Developer\MeshMergeUtilities\FInstancedMeshMergeData) > & InData, const struct [FMeshProxySettings](API\Runtime\Engine\Engine\FMeshProxySettings) & InProxySettings, const [TArray](API\Runtime\Core\Containers\TArray)< struct [FFlattenMaterial](API\Developer\MaterialUtilities\FFlattenMaterial) > & InputMaterials, const [FGuid](API\Runtime\Core\Misc\FGuid) InJobGUID )