UAnimInstance::PreUpdateLinkedInstances

function Engine Since 4.24

#include "Animation/AnimInstance.h"

Access: public Specifiers: virtual

Description

Called before linked animation instances are updated. Override to propagate shared state or synchronize variables from the main instance to linked instances before their update runs.

Caveats & Gotchas

• Only called on the main animation instance, not on linked instances themselves. Linked instances receive their updates after this call completes.
• This is called every frame before the linked instance update pass. Heavy work here directly increases animation update cost since it runs on the game thread before parallel evaluation begins.

Signature

virtual void PreUpdateLinkedInstances(float DeltaSeconds);

Parameters

Name	Type	Description	Default
DeltaSeconds	float	Time elapsed since the last animation update.	—

Return Type

void

Example

Push variables to linked instances C++

void UMyAnimInstance::PreUpdateLinkedInstances(float DeltaSeconds)
{
    Super::PreUpdateLinkedInstances(DeltaSeconds);
    // Push shared movement data to all linked anim instances
    for (UAnimInstance* Linked : GetOwningComponent()->GetLinkedAnimInstances())
    {
        if (UMyLinkedAnimInstance* MyLinked = Cast<UMyLinkedAnimInstance>(Linked))
        {
            MyLinked->Speed = Speed;
            MyLinked->bIsFalling = bIsFalling;
        }
    }
}

Version History

Introduced in: 4.24

Version	Status	Notes
5.6	stable	—

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