UKismetMathLibrary::Vector4_IsNormal3
#include "Kismet/KismetMathLibrary.h"
Access: public
Specifiers: staticBlueprintPure
Description
Returns true if the XYZ components form a unit-length vector, ignoring W. Unlike Vector4_IsUnit3, this uses the vector's own internal IsNormal3 check with a fixed tolerance rather than an adjustable squared-length tolerance.
Caveats & Gotchas
- • The tolerance used internally is fixed and tighter than Vector4_IsUnit3's default; if you need a tunable threshold, use Vector4_IsUnit3 instead.
- • W is ignored entirely — a W of 1000 will not cause this to return false.
Signature
static UE_INL_API bool Vector4_IsNormal3(const FVector4& A);Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| A | const FVector4& | The vector to test. | — |
Return Type
bool Example
Conditional normalization C++
FVector4 V = GetDirection4();
if (!UKismetMathLibrary::Vector4_IsNormal3(V))
{
V = UKismetMathLibrary::Vector4_Normal3(V);
}Version History
Introduced in: 4.0
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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