UBlendSpace::GetAnimationLengthFromSampleData

function Engine Since 4.0

#include "Animation/BlendSpace.h"

Access: public Specifiers: const

Description

Computes the effective animation length for a weighted set of blend samples, accounting for each sample's rate scale.

Caveats & Gotchas

• The result is a weighted blend of individual sample lengths, not a simple average — samples with near-zero weight barely affect it.
• Requires a non-empty SampleDataList; passing an empty array returns 0.

Signature

ENGINE_API float GetAnimationLengthFromSampleData(const TArray<FBlendSampleData>& SampleDataList) const;

Parameters

Name	Type	Description	Default
SampleDataList	const TArray<FBlendSampleData>&	Weighted sample list, typically produced by GetSamplesFromBlendInput.	—

Return Type

float

Example

Get effective length for current input C++

TArray<FBlendSampleData> SampleDataList;
int32 CachedIndex = INDEX_NONE;
MyBlendSpace->GetSamplesFromBlendInput(BlendInput, SampleDataList, CachedIndex, true);
const float EffectiveLength = MyBlendSpace->GetAnimationLengthFromSampleData(SampleDataList);

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

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