UKismetMathLibrary::BreakColor

function Engine Blueprint Since 4.0

#include "Kismet/KismetMathLibrary.h"

Access: public Specifiers: staticBlueprintPure

Description

Decomposes an FLinearColor into its individual R, G, B, and A float components. The Blueprint NativeBreakFunc for FLinearColor.

Caveats & Gotchas

• Output values are in linear space; if you need 0-255 sRGB byte values for UI or debugging, convert with InColor.ToFColor(true) and read its R/G/B/A bytes instead.
• In C++ you can access InColor.R, InColor.G, InColor.B, InColor.A directly without calling this function; this wrapper exists primarily for Blueprint.

Signature

static UE_INL_API void BreakColor(FLinearColor InColor, float& R, float& G, float& B, float& A);

Parameters

Name	Type	Description	Default
InColor	FLinearColor	The linear color to decompose.	—
R	float&	Output red channel (linear space).	—
G	float&	Output green channel (linear space).	—
B	float&	Output blue channel (linear space).	—
A	float&	Output alpha channel.	—

Return Type

void

Example

Extract alpha from a color to drive UI opacity C++

FLinearColor WidgetColor = Widget->GetColorAndOpacity().GetSpecifiedColor();
float R, G, B, A;
UKismetMathLibrary::BreakColor(WidgetColor, R, G, B, A);
UE_LOG(LogTemp, Log, TEXT("Widget alpha: %f"), A);

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

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