UKismetMathLibrary::Add_LinearColorLinearColor

function Engine Blueprint Since 4.0

#include "Kismet/KismetMathLibrary.h"

Access: public Specifiers: staticUFUNCTIONBlueprintPure

Description

Adds two linear colors channel-by-channel (R+R, G+G, B+B, A+A). The Blueprint + operator for LinearColor.

Caveats & Gotchas

• Result channels are not clamped — adding two bright colors can easily exceed 1.0 per channel, producing values that blow out in LDR rendering contexts.
• Alpha is also added, so two fully opaque colors (A=1) produce A=2, which may cause unexpected blending in UI or translucent materials.

Signature

static UE_INL_API FLinearColor Add_LinearColorLinearColor(FLinearColor A, FLinearColor B);

Parameters

Name	Type	Description	Default
A	FLinearColor	First color.	—
B	FLinearColor	Second color.	—

Return Type

FLinearColor

Example

Additive color blend for emissive layering C++

FLinearColor BaseEmissive  = FLinearColor(0.5f, 0.0f, 0.0f, 0.f);
FLinearColor ExtraEmissive = FLinearColor(0.0f, 0.3f, 0.0f, 0.f);
FLinearColor Combined = UKismetMathLibrary::Add_LinearColorLinearColor(BaseEmissive, ExtraEmissive);
// Combined = (0.5, 0.3, 0.0, 0.0)

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

Feedback

Was this helpful?