UKismetMathLibrary::Vector_Assign
#include "Kismet/KismetMathLibrary.h"
Access: public
Specifiers: staticBlueprintCallable
Description
Copies all components from InVector into A, overwriting A in place. Equivalent to the C++ assignment operator A = InVector.
Caveats & Gotchas
- • In C++, this function is never preferable over the plain assignment operator (A = InVector). It exists to expose a BlueprintCallable mutation node for UPARAM(ref) variables in Blueprint.
- • In Blueprint, this is a reliable way to update a vector variable that is passed by reference into a function. Using the 'Set Variable' node inside a function with a ref parameter can behave unexpectedly; this node sidesteps that.
Signature
static UE_INL_API void Vector_Assign(UPARAM(ref) FVector& A, const FVector& InVector);Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| A | FVector& | The vector to overwrite. Passed by reference and modified in place. | — |
| InVector | const FVector& | The source vector whose values are copied into A. | — |
Return Type
void Example
Overwrite a passed-by-ref vector with a new value C++
FVector MyVec = FVector::ZeroVector;
UKismetMathLibrary::Vector_Assign(MyVec, FVector(100.f, 200.f, 0.f));
// MyVec is now (100, 200, 0)Tags
Version History
Introduced in: 4.0
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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