UKismetMathLibrary::RotateAngleAxis
#include "Kismet/KismetMathLibrary.h"
Access: public
Specifiers: staticUFUNCTIONBlueprintPure
Description
Rotates a vector by a given angle around a specified axis using the right-hand rule. Useful for orbiting objects, spinning projectiles, or computing rotated offsets without constructing a full FQuat.
Caveats & Gotchas
- • The Axis vector should be normalised before passing in. Passing a non-unit axis will scale the result incorrectly — the rotation distance depends on the axis magnitude.
- • AngleDeg uses degrees, not radians. A common mistake is passing a radian value and getting unexpected large rotations.
- • This is equivalent to FVector::RotateAngleAxis on an FVector instance. In Blueprint it appears as 'Rotate Vector Around Axis'.
Signature
static ENGINE_API FVector RotateAngleAxis(FVector InVect, float AngleDeg, FVector Axis);Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| InVect | FVector | The vector to rotate. | — |
| AngleDeg | float | Angle in degrees to rotate by. | — |
| Axis | FVector | The axis to rotate around. Should be normalised. | — |
Return Type
FVector Example
Orbit a point around an actor's up axis C++
FVector Offset(100.f, 0.f, 0.f);
FVector UpAxis = GetActorUpVector();
FVector RotatedOffset = UKismetMathLibrary::RotateAngleAxis(Offset, 45.f, UpAxis);
FVector NewLocation = GetActorLocation() + RotatedOffset;Version History
Introduced in: 4.0
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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