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> Unreal Engine API Reference > Runtime > Core > Math > FMath > FMath::GetReflectionVector

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FMath::GetReflectionVector

Given a direction vector and a surface normal, returns the vector reflected across the surface normal.

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References

Module	Core
Header	/Engine/Source/Runtime/Core/Public/Math/UnrealMathUtility.h
Include	#include "Math/UnrealMathUtility.h"
Source	/Engine/Source/Runtime/Core/Private/Math/UnrealMath.cpp

Syntax

static FVector GetReflectionVector
(
const FVector & Direction,
const FVector & SurfaceNormal
)

Remarks

Given a direction vector and a surface normal, returns the vector reflected across the surface normal. Produces a result like shining a laser at a mirror!

Returns

Reflected vector.

Parameters

Parameter	Description
Direction	Direction vector the ray is coming from.
SurfaceNormal	A normal of the surface the ray should be reflected on.

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