FVector::Distance

function Core Blueprint Since 1.0

#include "Math/Vector.h"

Access: public Specifiers: static

Description

Returns the Euclidean distance between two vectors. Internally computes `(V2 - V1).Size()`. For performance-sensitive comparisons, prefer `DistSquared()` to avoid the square root.

Signature

static double Distance(const FVector& V1, const FVector& V2)

Parameters

Name	Type	Description	Default
V1	const FVector&	First vector.	—
V2	const FVector&	Second vector.	—

Return Type

double

Caveats & Gotchas

• If you only need to compare distances, use `FVector::DistSquared()` to avoid the square root computation.
• Also accessible as the global `FVector::Dist()` alias.

Example

Distance check C++

float D = FVector::Distance(ActorA->GetActorLocation(), ActorB->GetActorLocation());
if (D < 200.f)
{
    // Within range
}

// Cheaper: compare squared distances
float Threshold = 200.f;
if (FVector::DistSquared(A, B) < Threshold * Threshold)
{
    // Avoids sqrt
}

Version History

Introduced in: 1.0

Version	Status	Notes
5.6	stable	—

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