UKismetMathLibrary::LinePlaneIntersection_OriginNormal
#include "Kismet/KismetMathLibrary.h"
Access: public
Specifiers: staticUFUNCTIONBlueprintPure
Description
Finds the point where a line segment crosses a plane, with the plane specified as an origin point and normal instead of an FPlane. This is the origin/normal overload of LinePlaneIntersection.
Caveats & Gotchas
- • PlaneNormal must be normalized — an un-normalized normal produces an incorrect T and Intersection without any warning.
- • In Blueprint this appears as "Line Plane Intersection (Origin & Normal)" via a DisplayName override, which is often easier to wire up than constructing an FPlane by hand.
- • As with the FPlane overload, T can be outside [0, 1] if the intersection lies beyond the segment's endpoints; check the range before trusting the hit as being on the segment.
Signature
static bool LinePlaneIntersection_OriginNormal(const FVector& LineStart, const FVector& LineEnd, FVector PlaneOrigin, FVector PlaneNormal, float& T, FVector& Intersection)Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| LineStart | const FVector& | Start point of the line segment. | — |
| LineEnd | const FVector& | End point of the line segment. | — |
| PlaneOrigin | FVector | Any point on the plane. | — |
| PlaneNormal | FVector | Unit normal vector of the plane. | — |
| T | float& | Receives the interpolation factor along the line where the intersection occurs (0 = LineStart, 1 = LineEnd). | — |
| Intersection | FVector& | Receives the world-space point of intersection. | — |
Return Type
bool Example
Project a point onto a mirror plane C++
float T;
FVector Intersection;
bool bHit = UKismetMathLibrary::LinePlaneIntersection_OriginNormal(RayStart, RayEnd, MirrorActor->GetActorLocation(), MirrorActor->GetActorForwardVector(), T, Intersection);Tags
Version History
Introduced in: unknown
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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