It seems that there is no blueprint accessible logic for accessing the size, but it does exist in C++ as int32 GetArraySize() const;
You can make this accessible to blueprints via a BlueprintFunctionLibrary like so:
UFUNCTION(BlueprintCallable, BlueprintPure, Category="Texture2DArray", meta=(CompactNodeTitle="Length"))
static UPARAM(DisplayName=" ") int32 GetTexture2DArrayLength(const UTexture2DArray* Texture2DArray)
{
return Texture2DArray->GetArraySize();
}
or without the frills:
UFUNCTION(BlueprintCallable)
static int32 GetTexture2DArrayLength(const UTexture2DArray* Texture2DArray)
{
return Texture2DArray->GetArraySize();
}
It doesn’t have to be in a blueprint function library, but it makes most sense to put it in one.
For those who don’t have C++ set up, below are instructions on how to quickly do that, no experience needed.
Follow this video guide, but when he says to select none when adding the C++ class, instead scroll down and add a blueprint function library.
Additionally, when he does “Advanced build actions → rebuild selected projects,” you can just press the play icon or hammer icon, whichever you can find in visual studio.
https://www.youtube.com/watch?v=tW1_rD0Geiw
Add in the code, and it should look something like this (YETANOTHERTESTING_API will be different for you)
