UKismetMathLibrary::MakeRelativeTransform
#include "Kismet/KismetMathLibrary.h"
Access: public
Specifiers: staticUFUNCTIONBlueprintPure
Description
Computes the relative transform of A compared to RelativeTo — the offset transform that, applied on top of RelativeTo, reproduces A. Commonly used to compute a child's local offset from a parent when both are known in world space.
Caveats & Gotchas
- • Both A and RelativeTo must be expressed in the same space (typically world space); mixing spaces produces a meaningless result with no error or warning.
- • This is equivalent to A * RelativeTo.Inverse() — if RelativeTo has near-zero scale on any axis the inversion becomes numerically unstable.
Signature
static FTransform MakeRelativeTransform(const FTransform& A, const FTransform& RelativeTo)Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| A | const FTransform& | The object's transform. | — |
| RelativeTo | const FTransform& | The transform the result is relative to, expressed in the same space as A. | — |
Return Type
FTransform Example
Compute a child actor's offset from its parent C++
FTransform ChildOffset = UKismetMathLibrary::MakeRelativeTransform(Child->GetActorTransform(), Parent->GetActorTransform());
// ChildOffset can later be re-applied to a new parent transform to reposition the childTags
Version History
Introduced in: 4.0
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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