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> Unreal Engine API Reference > Runtime > Engine > appLineCheckTriangle

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appLineCheckTriangle

Line vs triangle intersection test.

Windows

MacOS

Linux

References

Module	Engine
Header	/Engine/Source/Runtime/Engine/Public/kDOP.h
Include	#include "kDOP.h"

Syntax

bool appLineCheckTriangle
(
    const FVector4 & Start,
    const FVector4 & End,
    const FVector4 & Dir,
    const FVector4 & V0,
    const FVector4 & V1,
    const FVector4 & V2,
    const FVector4 & Normal,
    float & IntersectionTime
)

Remarks

Line vs triangle intersection test.

Returns

true if the line intersected the triangle

Parameters

Parameter	Description
Start	Start of the line segment
End	End of the line segment
Dir	Direction of the line segment (not normalized, just End-Start)
V0	First vertex of the triangle
V1	Second vertex of the triangle
V2	Third vertex of the triangle
Normal	Triangle normal (including +W for the plane equation)
IntersectionTime	[in/out] Best intersection time so far (0..1), as in: IntersectionPoint = Start + IntersectionTime * Dir.

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