unreal engine

In Unreal Engine, it is possible to set a delay for the function to execute after a single tick, which is sometimes useful when working with UMG/Slate side of things where the widget properties are only available after a complete rebuild, such as obtaining the desired size of the widget’s geometry, which is often not accessible right after initializing or constructing the widget. In such cases, you may want to implement a delay, as described in this article , but sometimes even a single tick delay is sufficient and can enhance the overall user experience, preventing visual hitches and abrupt interactions....

Chunk downloading is a technique used to retrieve large binary data from the server in separate parts, ensuring reliability and compatibility across different platforms. Unreal Engine’s HTTP module has a limitation of 2GB for binary HTTP response content due to internal restrictions (specifically, TArray<uint8> uses the int32 size type, which has a maximum value of 2,147,483,647, approximately 2 GB in our case). To overcome this limitation, we can use the Range HTTP header supported by most servers, without requiring any file preparation or segmentation....

You can save any UObject that is represented as an asset within a UPackage using this method: bool SaveToAsset(UObject* ObjectToSave) { UPackage* Package = ObjectToSave->GetPackage(); const FString PackageName = Package->GetName(); const FString PackageFileName = FPackageName::LongPackageNameToFilename(PackageName, FPackageName::GetAssetPackageExtension()); FSavePackageArgs SaveArgs; // This is specified just for example { SaveArgs.TopLevelFlags = RF_Public | RF_Standalone; SaveArgs.SaveFlags = SAVE_NoError; } const bool bSucceeded = UPackage::SavePackage(Package, nullptr, *PackageFileName, SaveArgs); if (!bSucceeded) { UE_LOG(LogTemp, Error, TEXT("Package '%s' wasn't saved!...

Note: This is an experimental article and may look strange as it compares two completely different concepts. But nevertheless, I think that they can be compared to some extent, which I did in this article. Smart pointers are typically compared to raw pointers , but this article will compare TUniquePtr, a type of smart pointer in Unreal Engine, and direct rvalue reference. I intentionally add “direct” to the rvalue reference term to make it more clear, because the rvalue reference can be applied to TUniquePtr itself in the same way and this can cause confusion....

There is a std::variant class template in the standard library that is essentially a type-safe  union. It is generally used when we are not sure in advance which object should be populated from our list of object types, so we assume that one of the specified objects must be there at a time. Unreal Engine has an alternative implementation called TVariant that works the same, except that all the types in the declaring template parameter pack must be unique....