void InitBlocked ( const ETextureSourceFormat * InLayerFormats, const [FTextureSourceBlock](API\Runtime\Engine\Engine\FTextureSourceBlock) * InBlocks, int32 InNumLayers, int32 InNumBlocks, [UE::Serialization::FEditorBulkData::FSharedBufferWithID](API\Runtime\CoreUObject\Serialization\FEditorBulkData\FSharedBufferWithID) NewData )