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> Unreal Engine API Reference > Runtime > Engine > FGeomTools2D > FGeomTools2D::ReducePolygons

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FGeomTools2D::ReducePolygons

Merge additive and subtractive polygons, split them up into additive polygons Assumes all polygons and overlapping polygons are valid, and the windings match the setting on the polygon

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Linux

References

Module	Engine
Header	/Engine/Source/Runtime/Engine/Public/GeomTools.h
Include	#include "GeomTools.h"
Source	/Engine/Source/Runtime/Engine/Private/GeomTools.cpp

Syntax

static TArray< TArray< FVector2D > > ReducePolygons
(
const TArray< TArray< FVector2D >> & Polygons,
const TArray< bool > & PolygonNegativeWinding
)

Remarks

Merge additive and subtractive polygons, split them up into additive polygons Assumes all polygons and overlapping polygons are valid, and the windings match the setting on the polygon

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