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> Unreal Engine API Reference > Runtime > Engine > Engine > FHitResult

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FHitResult

Structure containing information about one hit of a trace, such as point of impact and surface normal at that point.

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References

Module	Engine
Header	/Engine/Source/Runtime/Engine/Classes/Engine/EngineTypes.h
Include	#include "Engine/EngineTypes.h"

Syntax

struct FHitResult

Remarks

Structure containing information about one hit of a trace, such as point of impact and surface normal at that point.

Variables

	Name	Description
TWeakObjectPtr<...	Actor	Actor hit by the trace.
uint8: 1	bBlockingHit	Indicates if this hit was a result of blocking collision.
FName	BoneName	Name of bone we hit (for skeletal meshes).
uint8: 1	bStartPenetrating	Whether the trace started in penetration, i.e. with an initial blocking overlap.
TWeakObjectPtr<...	Component	PrimitiveComponent hit by the trace.
float	Distance	The distance from the TraceStart to the Location in world space.
uint8	ElementIndex	Index to item that was hit, also hit primitive specific.
int32	FaceIndex	Face index we hit (for complex hits with triangle meshes).
FVector_NetQuan...	ImpactNormal	Normal of the hit in world space, for the object that was hit by the sweep, if any.
FVector_NetQuan...	ImpactPoint	Location in world space of the actual contact of the trace shape (box, sphere, ray, etc) with the impacted object.
int32	Item	Extra data about item that was hit (hit primitive specific).
FVector_NetQuan...	Location	The location in world space where the moving shape would end up against the impacted object, if there is a hit.
FName	MyBoneName	Name of the my bone which took part in hit event (in case of two skeletal meshes colliding).
FVector_NetQuan...	Normal	Normal of the hit in world space, for the object that was swept.
float	PenetrationDepth	If this test started in penetration (bStartPenetrating is true) and a depenetration vector can be computed, this value is the distance along Normal that will result in moving out of penetration.
TWeakObjectPtr<...	PhysMaterial	Physical material that was hit.
float	Time	'Time' of impact along trace direction (ranging from 0.0 to 1.0) if there is a hit, indicating time between TraceStart and TraceEnd.
FVector_NetQuan...	TraceEnd	End location of the trace; this is NOT where the impact occurred (if any), but the furthest point in the attempted sweep.
FVector_NetQuan...	TraceStart	Start location of the trace.

Constructors

	Name	Description
	FHitResult()
	FHitResult ( float InTime )
	FHitResult ( EForceInit InInit )
	FHitResult ( ENoInit NoInit )
	FHitResult ( FVector Start, FVector End )
	FHitResult ( AActor* InActor, UPrimitiveComponent* InCompone..., FVector const& HitLoc, FVector const& HitNorm )	Ctor for easily creating "fake" hits from limited data.

Functions

	Name	Description
AActor *	GetActor()	Utility to return the Actor that owns the Component that was hit.
UPrimitiveCo...	GetComponent()	Utility to return the Component that was hit.
FHitResult &...	GetFirstBlockingHit ( TArray< FHitResult >& InHits )	Static utility function that returns the first 'blocking' hit in an array of results.
int32	GetNumBlockingHits ( const TArray< FHitResult >& InHits )	Static utility function that returns the number of blocking hits in array.
int32	GetNumOverlapHits ( const TArray< FHitResult >& InHits )	Static utility function that returns the number of overlapping hits in array.
FHitResult	GetReversedHit ( const FHitResult& Hit )	Get a copy of the HitResult with relevant information reversed.
void	Init ( FVector Start, FVector End )	Initialize empty hit result with given time, TraceStart, and TraceEnd
void	Init()	Initialize empty hit result with given time.
bool	IsValidBlockingHit()	Return true if there was a blocking hit that was not caused by starting in penetration.
bool	NetSerialize ( FArchive& Ar, UPackageMap* Map, bool& bOutSuccess )	Optimized serialize function
void	Reset ( float InTime, bool bPreserveTraceData )	Reset hit result while optionally saving TraceStart and TraceEnd.
FString	ToString()

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