Unreal Engine 4 Documentation > Unreal Engine API Reference > Runtime > Engine > Engine > UWorld > UWorld::LineTraceSingleByChannel

UWorld::LineTraceSingleByChannel

Trace a ray against the world using a specific channel and return the first blocking hit

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References

Module	Engine
Header	/Engine/Source/Runtime/Engine/Classes/Engine/World.h
Include	#include "Engine/World.h"
Source	/Engine/Source/Runtime/Engine/Private/Collision/WorldCollision.cpp

Syntax

bool LineTraceSingleByChannel
(
    struct FHitResult & OutHit,
    const FVector & Start,
    const FVector & End,
    ECollisionChannel TraceChannel,
    const FCollisionQueryParams & Params,
    const FCollisionResponseParams & ResponseParam
) const

Remarks

Trace a ray against the world using a specific channel and return the first blocking hit

Returns

TRUE if a blocking hit is found

Parameters

Parameter	Description
OutHit	First blocking hit found
Start	Start location of the ray
End	End location of the ray
TraceChannel	The 'channel' that this ray is in, used to determine which components to hit
Params	Additional parameters used for the trace
ResponseParam	ResponseContainer to be used for this trace

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