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> Unreal Engine API Reference > Runtime > Engine > ComputeBoundsScreenRadiusSquared > ComputeBoundsScreenRadiusSquared

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ComputeBoundsScreenRadiusSquared

Computes the screen radius squared of a given sphere bounds in the given view.

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Linux

References

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

Syntax

float ComputeBoundsScreenRadiusSquared
(
    const FVector4 & BoundsOrigin,
    const float SphereRadius,
    const FVector4 & ViewOrigin,
    const FMatrix & ProjMatrix
)

Remarks

Computes the screen radius squared of a given sphere bounds in the given view. This is used at runtime instead of ComputeBoundsScreenSize to avoid a square root.

Returns

float - The screen size calculated

Parameters

Parameter	Description
Origin	Origin of the bounds in world space
SphereRadius	Radius of the sphere to use to calculate screen coverage
ViewOrigin	The view origin involved in the calculation
ProjMatrix	The projection matrix of the view involved in the calculation

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