UAnimInstance::Montage_SetBlendingOutDelegate

function Engine Since 4.0

#include "Animation/AnimInstance.h"

Access: public Specifiers: ENGINE_API

Description

Binds a delegate that fires the moment a montage begins its blend-out phase — earlier than the end delegate, while the animation is still visible and weight is non-zero.

Caveats & Gotchas

• This fires at the start of blend-out, not at the end. The montage instance is still alive and queryable at this point, but it will be destroyed sometime after this callback completes.
• If a montage is interrupted (e.g., by Montage_Stop), this delegate fires immediately regardless of where in the montage playback was. Do not assume the montage played to completion when this callback runs — check the bInterrupted parameter.
• Only one delegate can be set per montage instance. Calling this twice for the same instance overwrites the first binding without any warning.

Signature

ENGINE_API void Montage_SetBlendingOutDelegate(FOnMontageBlendingOutStarted& InOnMontageBlendingOut, UAnimMontage* Montage = nullptr);

Parameters

Name	Type	Description	Default
InOnMontageBlendingOut	FOnMontageBlendingOutStarted&	The delegate to fire when the montage begins blending out.	—
Montage	UAnimMontage*	Target montage instance. Defaults to the topmost active montage instance if nullptr.	nullptr

Return Type

void

Example

Begin transitioning out before the montage fully ends C++

FOnMontageBlendingOutStarted BlendingOutDelegate;
BlendingOutDelegate.BindUObject(this, &AMyCharacter::OnAttackBlendingOut);
AnimInstance->Montage_SetBlendingOutDelegate(BlendingOutDelegate, AttackMontage);

// In the callback:
void AMyCharacter::OnAttackBlendingOut(UAnimMontage* Montage, bool bInterrupted)
{
    // Re-enable movement inputs early, while the blend-out is still playing
    GetCharacterMovement()->SetMovementMode(MOVE_Walking);
}

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

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