UKismetMathLibrary::BreakVector
#include "Kismet/KismetMathLibrary.h"
Access: public
Specifiers: staticBlueprintPure
Description
Decomposes an FVector into its three individual double components. This is the Blueprint 'Break Vector' node.
Caveats & Gotchas
- • In C++ there is no reason to call this function; access InVec.X, InVec.Y, InVec.Z directly. The function exists exclusively to expose the NativeBreakFunc Blueprint node.
- • Output components are double in UE5. If you need float precision for a legacy API, cast explicitly — silent narrowing to float is not lossless for large world coordinate values.
Signature
static UE_INL_API void BreakVector(FVector InVec, double& X, double& Y, double& Z);Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| InVec | FVector | The vector to decompose. | — |
| X | double& | Receives the X component. | — |
| Y | double& | Receives the Y component. | — |
| Z | double& | Receives the Z component. | — |
Return Type
void Example
Extract XY speed from a velocity vector C++
FVector Velocity = Character->GetVelocity();
double X, Y, Z;
UKismetMathLibrary::BreakVector(Velocity, X, Y, Z);
float HorizontalSpeed = (float)FMath::Sqrt(X * X + Y * Y);Tags
Version History
Introduced in: 4.0
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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