UKismetMathLibrary::VEase
#include "Kismet/KismetMathLibrary.h"
Access: public
Specifiers: staticBlueprintPure
Description
Eases between two vectors using the specified easing curve. Applies FMath::Ease to Alpha before performing a linear interpolation, so the shape of the motion follows the chosen curve.
Caveats & Gotchas
- • This node is marked BlueprintInternalUseOnly and is exposed through the generic 'Ease' Blueprint node — you typically won't call it directly in C++. Call FMath::Ease on Alpha yourself and then pass the result to VLerp for cleaner C++ code.
- • BlendExp and Steps are only meaningful for the appropriate EasingFunc variants. Passing them with EasingFunc=Linear has no effect. Forgetting to set them can produce unexpectedly flat or stiff curves when switching EasingFunc types.
Signature
static ENGINE_API FVector VEase(FVector A, FVector B, float Alpha, TEnumAsByte<EEasingFunc::Type> EasingFunc, float BlendExp = 2, int32 Steps = 2);Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| A | FVector | Start vector. | — |
| B | FVector | End vector. | — |
| Alpha | float | Interpolation factor in [0,1]. | — |
| EasingFunc | TEnumAsByte<EEasingFunc::Type> | Which easing curve to apply (Linear, EaseIn, EaseOut, EaseInOut, etc.). | — |
| BlendExp | float | Exponent for EaseIn/EaseOut curves. Higher values produce a more pronounced curve. | 2 |
| Steps | int32 | Number of steps for the Step easing function. | 2 |
Return Type
FVector Example
Ease-out camera pan C++
// Directly call FMath::Ease then VLerp for idiomatic C++
float EasedAlpha = FMath::Ease(Alpha, EEasingFunc::EaseOut, 2.f, 2);
FVector NewCamPos = UKismetMathLibrary::VLerp(StartPos, EndPos, EasedAlpha);
Camera->SetWorldLocation(NewCamPos);Tags
Version History
Introduced in: 4.0
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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