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

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FMath::ComputeProjectedSphereScissorRect

InOutScissorRect should be set to View.ViewRect before the call

Windows

MacOS

Linux

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 uint32 ComputeProjectedSphereScissorRect
(
    struct FIntRect & InOutScissorRect,
    FVector SphereOrigin,
    float Radius,
    FVector ViewOrigin,
    const FMatrix & ViewMatrix,
    const FMatrix & ProjMatrix
)

Remarks

InOutScissorRect should be set to View.ViewRect before the call

Returns

0: light is not visible, 1:use scissor rect, 2: no scissor rect needed

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