Allow having TArray with index size using 64 bits instead of 32 bits

With the geometry data getting bigger and bigger we hit more often the int32 limits of the default TArray. All geometry data is store in array so we cannot have more then 2GB of vertexinstances or triangles.

Some FArchive like the duplicate use a TArray to store the object.

With that said we need a way to have bigger array.

I propose something like this to be able to not duplicate the code, this is only a proposition

TArray can be change for TArray<Foo, AllocatorFoo, IndexType> IndexType by default will be int32 and we can define TArray64<Foo, AllocatorFoo> to TArray<Foo, AllocatorFoo, int64>

Duplicate a UObject that is byte sum is bigger then max integer (> ~2GB). This archive use a TArray<uint8> to serialize all the data.

Currently we are using the duplicate archive to build the MeshDescription. When importing 8 millions polygons fbx, the size of the duplicate archive is more then 2GB and the editor crash. Temporary we will write our own duplicate function to avoid the crash but see the description to why we need this in mid term

Fix UE-51650

i have this problem UE4CC-Windows-58DC12AF4B97F057BD108FBFF569B2E9_0000

Delay nodes occasionally don't fire the "Completed" output in a nativized build

I am not able to find world outliner how to enable it?

Undefined sysmbol: typeinfo for AActor when cross-compile linux dedicated server on windows

Bonjour j'ai un petit problème c'est que je ne vois plus l'onglet "scability" pour changer les graphismes de uefn et j'ai pas trouvé l'option pour le faire revenir ?

How can i modify the param name in EQS node

Installer 4.10 failed with error code R-1603

An error occurred while trying to generate project files !?

Error 5?