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> Unreal Engine API Reference > Runtime > Chaos > Chaos > FConvex > FConvex::FindGeometryOpposingNormal

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FConvex::FindGeometryOpposingNormal

Given a normal and a face index, compute the most opposing normal associated with the underlying geometry features.

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Override Hierarchy

FImplicitObject::FindGeometryOpposingNormal()

FConvex::FindGeometryOpposingNormal()

References

Module	Chaos
Header	/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/Convex.h
Include	#include "Chaos/Convex.h"

Syntax

virtual FVec3 FindGeometryOpposingNormal
(
    const FVec3 & DenormDir,
    int32 FaceIndex,
    const FVec3 & OriginalNormal
) const

Remarks

Given a normal and a face index, compute the most opposing normal associated with the underlying geometry features. For example a sphere swept against a box may not give a normal associated with one of the box faces. This function will return a normal associated with one of the faces.

Returns

The most opposing normal associated with the underlying geometry's feature (like a face)

Parameters

Parameter	Description
DenormDir	the direction we want to oppose
FaceIndex	the face index associated with the geometry (for example if we hit a specific face of a convex hull)
OriginalNormal	the original normal given by something like a sphere sweep

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