UKismetMathLibrary::WeightedMovingAverage_FRotator
#include "Kismet/KismetMathLibrary.h"
Access: public
Specifiers: staticUFUNCTIONBlueprintPure
Description
Blends a new rotation sample with the previous smoothed value to produce the next value in a weighted moving average series, useful for smoothing camera or aim rotations.
Caveats & Gotchas
- • This is stateless — you must store PreviousSample yourself between calls, typically once per Tick.
- • Blending is done component-wise on pitch/yaw/roll rather than via quaternion slerp, so it can behave oddly near the ±180° wraparound (e.g. averaging 179° and -179° does not smoothly cross 180°).
- • Weight is applied per call rather than per second, so the amount of smoothing shifts with frame rate unless you factor in DeltaTime yourself.
Signature
static FRotator WeightedMovingAverage_FRotator(FRotator CurrentSample, FRotator PreviousSample, float Weight)Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| CurrentSample | FRotator | The newest raw rotation to blend in. | — |
| PreviousSample | FRotator | The previously smoothed rotation from the series. | — |
| Weight | float | Blend factor toward CurrentSample; higher values track the current sample more closely. | — |
Return Type
FRotator Example
Smooth camera rotation while following a target C++
// SmoothedRotation is a member FRotator
SmoothedRotation = UKismetMathLibrary::WeightedMovingAverage_FRotator(DesiredRotation, SmoothedRotation, 0.2f);
SpringArmComponent->SetWorldRotation(SmoothedRotation);See Also
Tags
Version History
Introduced in: unknown
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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